Update README branch naming to homework_5

Implement HW5 stubs, API helpers, optional SQL/MQ helpers, and test coverage
2026-03-09 01:45:58 +03:00 · 2026-03-09 01:40:48 +03:00
53 changed files with 2320 additions and 56 deletions
--- a/README.md
+++ b/README.md
@@ -1,65 +1,78 @@
-# OTUS Rest-assured Homework 3
+# OTUS Homework 5: Stub & API Testing (API-helpers)
+В этом проекте реализован stub-сервер на WireMock, API-helpers для HTTP/SOAP и автотесты контрактов/схем, плюс UI-проверка stub frontend через Cucumber.

-## Цель проекта
-Автоматизировать API-сценарии для `https://petstore.swagger.io` с использованием Rest-assured, JUnit Jupiter и quality gates (Checkstyle + SpotBugs).
+## Что реализовано
+- Stub endpoints на WireMock:
+  - `/user/get/{id}` - получение оценки пользователя
+  - `/cource/get/all` - получение списка курсов
+  - `/user/get/all` - получение списка пользователей
+- Контракты и схемы:
+  - контрактные тесты для users/courses/score
+  - JSON schema тесты для users/courses/score
+- API-helpers:
+  - `HttpHelper`
+  - `SoapHelper`
+- Дополнительно (optional):
+  - `SqlHelper`
+  - `MqHelper`
+- Stub frontend:
+  - endpoint `/frontend`
+  - Cucumber-сценарий проверки frontend
+- Selenoid support:
+  - запуск UI-тестов через `-Dbrowser=selenoid`

-## Стек технологий
- Java 21
- Maven
- Rest-assured `6.0.0`
- JUnit Jupiter `6.0.2`
- Jackson Databind `2.21.0`
- Commons Codec `1.21.0`
- Maven Surefire Plugin `3.5.4`
- Maven Compiler Plugin `3.15.0`
- Checkstyle (`maven-checkstyle-plugin` `3.6.0`)
- SpotBugs (`spotbugs-maven-plugin` `4.9.8.2`)
+## Что проверяется в Cucumber
+- Для homework_5 в раннер подключен только `features/stub_frontend.feature`.
+- `features/catalog.feature` и `CatalogSteps` сохранены в проекте, но в текущий раннер HW5 не входят.

-## Реализованные сценарии
-1. `POST /pet` + `GET /pet/{id}`:
-   - создание питомца;
-   - повторное чтение по id;
-   - проверка, что вернулся именно созданный объект.
-
-2. `GET /pet/{id}`:
-   - проверка схемы ответа через Json Schema Validator.
-
-3. Негативные сценарии:
-   - `POST /pet` с malformed JSON возвращает `4xx`;
-   - `GET /pet/{id}` для удаленного/несуществующего id возвращает `404`;
-   - `GET /pet/findByStatus` с невалидным статусом возвращает пустой список.
-
-## Архитектура
- 2-уровневый дизайн:
-  - `service` слой (HTTP-вызовы + спецификации);
-  - `tests` слой (сценарии).
- Тесты создают сервис напрямую (`new PetService()`), без DI-фреймворка.
-
-## Структура проекта
- `src/main/java/ru/otus/petstore/config` — конфигурация
- `src/main/java/ru/otus/petstore/model` — модели API (`Pet`, `Category`, `Tag`)
- `src/main/java/ru/otus/petstore/service` — сервисы API
- `src/test/java/ru/otus/petstore/tests` — автотесты (позитивные и негативные сценарии)
- `src/test/java/ru/otus/petstore/util` — фабрика тестовых данных
- `src/test/resources/schemas` — JSON schema
-
-## Запуск
-### 1. Только тесты
+## Команды запуска
+Основной прогон (API + stub + helpers):
 ```bash
 mvn test
 ```

-### 2. Полная проверка (тесты + Checkstyle + SpotBugs)
+Только ключевые тесты homework_5:
+```bash
+mvn "-Dtest=HttpHelperTest,SoapHelperTest,SqlHelperTest,MqHelperTest,StubContractTest,StubSchemaTest" test
+```
+
+UI Cucumber (stub frontend):
+```bash
+mvn -Pui-tests test
+```
+
+UI Cucumber через Selenoid:
+```bash
+mvn -Pui-tests "-Dbrowser=selenoid" "-Dselenoid.url=http://localhost:4444/wd/hub" test
+```
+
+Полная проверка качества:
 ```bash
 mvn verify
 ```

-## Параметры запуска
- `base.uri` (по умолчанию `https://petstore.swagger.io`)
- `base.path` (по умолчанию `/v2`)
- значения читаются из `System properties` во время выполнения тестов.
+## Docker/Selenoid
+Если UI-тесты через Selenoid не нужны, этот раздел можно пропустить.

-Пример:
+Предварительно:
+- Установить Docker Desktop.
+- Убедиться, что Docker запущен.
+
+Поднять инфраструктуру:
 ```bash
-mvn "-Dbase.uri=https://petstore.swagger.io" "-Dbase.path=/v2" test
+docker compose up -d
+```
+
+Проверка, что Selenoid поднялся:
+- Selenoid API: `http://localhost:4444/wd/hub`
+- Selenoid UI: `http://localhost:8081`
+
+После этого можно запускать UI-тесты через Selenoid:
+```bash
+mvn -Pui-tests "-Dbrowser=selenoid" "-Dselenoid.url=http://localhost:4444/wd/hub" test
+```
+
+Или выполнить полный пайплайн одной командой (поднимет Docker/Selenoid и запустит все проверки):
+```bash
+powershell -ExecutionPolicy Bypass -File .\scripts\run-full-pipeline.ps1
 ```
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -0,0 +1,32 @@
+name: hw3
+
+services:
+  selenoid:
+    image: aerokube/selenoid:latest-release
+    environment:
+      DOCKER_API_VERSION: "1.44"
+    ports:
+      - "4444:4444"
+    volumes:
+      - "./selenoid/browsers.json:/etc/selenoid/browsers.json:ro"
+      - "/var/run/docker.sock:/var/run/docker.sock"
+      - "./selenoid/video:/opt/selenoid/video"
+    command:
+      - "-container-network"
+      - "hw3_default"
+      - "-limit"
+      - "4"
+      - "-timeout"
+      - "5m"
+      - "-video-output-dir"
+      - "/opt/selenoid/video"
+
+  selenoid-ui:
+    image: aerokube/selenoid-ui:latest-release
+    depends_on:
+      - selenoid
+    command:
+      - "--selenoid-uri"
+      - "http://selenoid:4444"
+    ports:
+      - "8081:8080"
--- a/pom.xml
+++ b/pom.xml
@@ -16,10 +16,23 @@
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <base.uri>https://petstore.swagger.io</base.uri>
        <base.path>/v2</base.path>
+        <base.url>http://localhost:8089</base.url>
+        <course.name>Python Developer</course.name>
+        <browser>chrome</browser>
+        <selenoid.url>http://localhost:4444/wd/hub</selenoid.url>

        <restassured.version>6.0.0</restassured.version>
-        <junit.jupiter.version>6.0.2</junit.jupiter.version>
+        <junit.jupiter.version>5.14.2</junit.jupiter.version>
+        <junit.platform.suite.version>1.14.2</junit.platform.suite.version>
        <jackson.version>2.21.0</jackson.version>
+        <selenium.version>4.40.0</selenium.version>
+        <cucumber.version>7.34.2</cucumber.version>
+        <guice.version>7.0.0</guice.version>
+        <guava.version>33.5.0-jre</guava.version>
+        <jsoup.version>1.22.1</jsoup.version>
+        <slf4j.version>2.0.17</slf4j.version>
+        <logback.version>1.5.31</logback.version>
+        <wiremock.version>2.35.2</wiremock.version>

        <maven.compiler.version>3.15.0</maven.compiler.version>
        <surefire.version>3.5.4</surefire.version>
@@ -66,14 +79,69 @@

        <dependency>
            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-api</artifactId>
+            <artifactId>junit-jupiter</artifactId>
            <version>${junit.jupiter.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <version>${junit.jupiter.version}</version>
+            <groupId>org.junit.platform</groupId>
+            <artifactId>junit-platform-suite</artifactId>
+            <version>${junit.platform.suite.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.seleniumhq.selenium</groupId>
+            <artifactId>selenium-java</artifactId>
+            <version>${selenium.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.cucumber</groupId>
+            <artifactId>cucumber-java</artifactId>
+            <version>${cucumber.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.cucumber</groupId>
+            <artifactId>cucumber-junit-platform-engine</artifactId>
+            <version>${cucumber.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.google.inject</groupId>
+            <artifactId>guice</artifactId>
+            <version>${guice.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>${guava.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.jsoup</groupId>
+            <artifactId>jsoup</artifactId>
+            <version>${jsoup.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>${slf4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>${logback.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.github.tomakehurst</groupId>
+            <artifactId>wiremock-jre8</artifactId>
+            <version>${wiremock.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <version>2.3.232</version>
            <scope>test</scope>
        </dependency>

@@ -97,9 +165,15 @@
                <version>${surefire.version}</version>
                <configuration>
                    <useModulePath>false</useModulePath>
+                    <excludes>
+                        <exclude>**/CucumberTest.java</exclude>
+                    </excludes>
                    <systemPropertyVariables>
                        <base.uri>${base.uri}</base.uri>
                        <base.path>${base.path}</base.path>
+                        <course.name>${course.name}</course.name>
+                        <browser>${browser}</browser>
+                        <selenoid.url>${selenoid.url}</selenoid.url>
                    </systemPropertyVariables>
                </configuration>
            </plugin>
@@ -147,6 +221,27 @@
                    <excludeFilterFile>spotbugs-exclude.xml</excludeFilterFile>
                </configuration>
            </plugin>
+
        </plugins>
    </build>
+
+    <profiles>
+        <profile>
+            <id>ui-tests</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-surefire-plugin</artifactId>
+                        <configuration>
+                            <excludes combine.self="override"/>
+                            <includes>
+                                <include>**/CucumberTest.java</include>
+                            </includes>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
 </project>
--- a/scripts/run-full-pipeline.ps1
+++ b/scripts/run-full-pipeline.ps1
@@ -0,0 +1,96 @@
+$ErrorActionPreference = "Stop"
+
+function Invoke-Step {
+    param(
+        [Parameter(Mandatory = $true)][string]$Name,
+        [Parameter(Mandatory = $true)][string]$Command
+    )
+
+    Write-Host ""
+    Write-Host "=== $Name ===" -ForegroundColor Cyan
+    Write-Host $Command
+    Invoke-Expression $Command
+    if ($LASTEXITCODE -ne 0) {
+        throw "Step '$Name' failed with exit code $LASTEXITCODE"
+    }
+}
+
+function Start-DockerDesktopIfNeeded {
+    function Test-DockerDaemonReady {
+        cmd /c "docker info >nul 2>nul"
+        return ($LASTEXITCODE -eq 0)
+    }
+
+    $dockerInfoOk = Test-DockerDaemonReady
+
+    if ($dockerInfoOk) {
+        return
+    }
+
+    $candidatePaths = @(
+        "$Env:ProgramFiles\Docker\Docker\Docker Desktop.exe",
+        "$Env:ProgramFiles(x86)\Docker\Docker\Docker Desktop.exe"
+    )
+
+    $dockerExe = $candidatePaths | Where-Object { Test-Path $_ } | Select-Object -First 1
+    if (-not $dockerExe) {
+        throw "Docker Desktop not found. Install Docker Desktop or start Docker manually."
+    }
+
+    # Try to start Docker Desktop even if process exists; daemon may be down.
+    Write-Host "Ensuring Docker Desktop is started..." -ForegroundColor Yellow
+    Start-Process -FilePath $dockerExe | Out-Null
+
+    # If the process still does not appear, fail fast.
+    $dockerProcess = Get-Process -Name "Docker Desktop" -ErrorAction SilentlyContinue
+    if (-not $dockerProcess) {
+        $dockerProcess = Get-Process -Name "Docker Desktop.exe" -ErrorAction SilentlyContinue
+    }
+    if (-not $dockerProcess) {
+        Write-Host "Docker Desktop process is not detected yet; waiting for daemon..." -ForegroundColor Yellow
+    }
+
+    $deadline = (Get-Date).AddMinutes(3)
+    while ((Get-Date) -lt $deadline) {
+        if (Test-DockerDaemonReady) {
+            return
+        }
+        Start-Sleep -Seconds 3
+    }
+
+    throw "Docker daemon is not available after 3 minutes."
+}
+
+function Wait-Selenoid {
+    param(
+        [Parameter(Mandatory = $true)][string]$StatusUrl
+    )
+
+    $deadline = (Get-Date).AddMinutes(2)
+    while ((Get-Date) -lt $deadline) {
+        try {
+            $response = Invoke-RestMethod -Uri $StatusUrl -Method Get -TimeoutSec 5
+            if ($null -ne $response.total -and $response.total -ge 1) {
+                return
+            }
+        } catch {
+            Start-Sleep -Seconds 2
+            continue
+        }
+        Start-Sleep -Seconds 2
+    }
+
+    throw "Selenoid is not ready at $StatusUrl"
+}
+
+Write-Host "Preparing Docker/Selenoid..." -ForegroundColor Green
+Start-DockerDesktopIfNeeded
+Invoke-Step -Name "Docker Compose Up" -Command "docker compose up -d --wait"
+Wait-Selenoid -StatusUrl "http://localhost:4444/status"
+
+Invoke-Step -Name "Quality Gates" -Command "mvn -DskipTests verify"
+Invoke-Step -Name "API and Stub Tests" -Command "mvn test"
+Invoke-Step -Name "UI Tests via Selenoid" -Command "mvn -Pui-tests ""-Dbrowser=selenoid"" ""-Dselenoid.url=http://localhost:4444/wd/hub"" test"
+
+Write-Host ""
+Write-Host "Full pipeline completed successfully." -ForegroundColor Green
--- a/selenoid/browsers.json
+++ b/selenoid/browsers.json
@@ -0,0 +1,12 @@
+{
+  "chrome": {
+    "default": "126.0",
+    "versions": {
+      "126.0": {
+        "image": "selenoid/vnc_chrome:126.0",
+        "port": "4444",
+        "path": "/"
+      }
+    }
+  }
+}
--- a/selenoid/video/.gitkeep
+++ b/selenoid/video/.gitkeep
@@ -0,0 +1 @@
+
--- a/src/main/java/ru/kovbasa/config/DriverModule.java
+++ b/src/main/java/ru/kovbasa/config/DriverModule.java
@@ -0,0 +1,16 @@
+package ru.kovbasa.config;
+
+import com.google.inject.AbstractModule;
+import com.google.inject.Singleton;
+import ru.kovbasa.driver.DriverFactory;
+import ru.kovbasa.driver.SelectableDriverFactory;
+import ru.kovbasa.driver.WebDriverProvider;
+
+public class DriverModule extends AbstractModule {
+
+    @Override
+    protected void configure() {
+        bind(DriverFactory.class).to(SelectableDriverFactory.class).in(Singleton.class);
+        bind(WebDriverProvider.class).in(Singleton.class);
+    }
+}
--- a/src/main/java/ru/kovbasa/config/InjectorProvider.java
+++ b/src/main/java/ru/kovbasa/config/InjectorProvider.java
@@ -0,0 +1,16 @@
+package ru.kovbasa.config;
+
+import com.google.inject.Guice;
+import com.google.inject.Injector;
+
+public final class InjectorProvider {
+
+    private static final Injector INJECTOR = Guice.createInjector(new DriverModule());
+
+    private InjectorProvider() {
+    }
+
+    public static Injector getInjector() {
+        return INJECTOR;
+    }
+}
--- a/src/main/java/ru/kovbasa/config/TestConfig.java
+++ b/src/main/java/ru/kovbasa/config/TestConfig.java
@@ -0,0 +1,30 @@
+package ru.kovbasa.config;
+
+public final class TestConfig {
+
+    private TestConfig() {
+    }
+
+    public static String getBaseUrl() {
+        final String configuredBaseUrl = System.getProperty("base.url");
+        if (configuredBaseUrl != null && !configuredBaseUrl.isBlank()) {
+            return configuredBaseUrl;
+        }
+        if ("selenoid".equalsIgnoreCase(getBrowser())) {
+            return "http://host.docker.internal:8089";
+        }
+        return "http://localhost:8089";
+    }
+
+    public static String getCourseName() {
+        return System.getProperty("course.name", "Python Developer");
+    }
+
+    public static String getBrowser() {
+        return System.getProperty("browser", "chrome");
+    }
+
+    public static String getSelenoidUrl() {
+        return System.getProperty("selenoid.url", "http://localhost:4444/wd/hub");
+    }
+}
--- a/src/main/java/ru/kovbasa/driver/ChromeDriverFactory.java
+++ b/src/main/java/ru/kovbasa/driver/ChromeDriverFactory.java
@@ -0,0 +1,16 @@
+package ru.kovbasa.driver;
+
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.chrome.ChromeDriver;
+import org.openqa.selenium.chrome.ChromeOptions;
+
+public class ChromeDriverFactory implements DriverFactory {
+
+    @Override
+    public WebDriver createDriver() {
+        final ChromeOptions options = new ChromeOptions();
+        options.addArguments("--start-maximized");
+        options.addArguments("--disable-notifications");
+        return new ChromeDriver(options);
+    }
+}
--- a/src/main/java/ru/kovbasa/driver/DriverFactory.java
+++ b/src/main/java/ru/kovbasa/driver/DriverFactory.java
@@ -0,0 +1,7 @@
+package ru.kovbasa.driver;
+
+import org.openqa.selenium.WebDriver;
+
+public interface DriverFactory {
+    WebDriver createDriver();
+}
--- a/src/main/java/ru/kovbasa/driver/SelectableDriverFactory.java
+++ b/src/main/java/ru/kovbasa/driver/SelectableDriverFactory.java
@@ -0,0 +1,23 @@
+package ru.kovbasa.driver;
+
+import org.openqa.selenium.WebDriver;
+import ru.kovbasa.config.TestConfig;
+
+public class SelectableDriverFactory implements DriverFactory {
+
+    private final DriverFactory chromeFactory = new ChromeDriverFactory();
+    private final DriverFactory selenoidFactory = new SelenoidDriverFactory();
+
+    @Override
+    public WebDriver createDriver() {
+        final String browser = TestConfig.getBrowser().toLowerCase();
+        if ("chrome".equals(browser)) {
+            return chromeFactory.createDriver();
+        }
+        if ("selenoid".equals(browser)) {
+            return selenoidFactory.createDriver();
+        }
+        throw new IllegalArgumentException(
+                "Unsupported browser: " + browser + ". Supported browsers: chrome, selenoid");
+    }
+}
--- a/src/main/java/ru/kovbasa/driver/SelenoidDriverFactory.java
+++ b/src/main/java/ru/kovbasa/driver/SelenoidDriverFactory.java
@@ -0,0 +1,34 @@
+package ru.kovbasa.driver;
+
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.chrome.ChromeOptions;
+import org.openqa.selenium.remote.RemoteWebDriver;
+import ru.kovbasa.config.TestConfig;
+
+import java.net.MalformedURLException;
+import java.net.URI;
+
+public class SelenoidDriverFactory implements DriverFactory {
+
+    @Override
+    public WebDriver createDriver() {
+        final ChromeOptions options = new ChromeOptions();
+        options.setCapability("browserName", "chrome");
+        options.setCapability("browserVersion", "126.0");
+        options.setCapability("selenoid:options", java.util.Map.of(
+                "enableVNC", true,
+                "enableVideo", false
+        ));
+        try {
+            return new RemoteWebDriver(URI.create(TestConfig.getSelenoidUrl()).toURL(), options);
+        } catch (MalformedURLException exception) {
+            throw new IllegalArgumentException("Invalid selenoid.url: " + TestConfig.getSelenoidUrl(), exception);
+        } catch (RuntimeException exception) {
+            throw new IllegalStateException(
+                    "Cannot create RemoteWebDriver session via selenoid.url=" + TestConfig.getSelenoidUrl()
+                            + ". Ensure Docker is running and execute 'docker compose up -d' first.",
+                    exception
+            );
+        }
+    }
+}
--- a/src/main/java/ru/kovbasa/driver/WebDriverProvider.java
+++ b/src/main/java/ru/kovbasa/driver/WebDriverProvider.java
@@ -0,0 +1,37 @@
+package ru.kovbasa.driver;
+
+import com.google.inject.Inject;
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.support.events.EventFiringDecorator;
+import ru.kovbasa.listeners.HighlightElementListener;
+
+public final class WebDriverProvider {
+
+    private WebDriver driver;
+    private final DriverFactory driverFactory;
+
+    @Inject
+    public WebDriverProvider(DriverFactory driverFactory) {
+        this.driverFactory = driverFactory;
+    }
+
+    public WebDriver getDriver() {
+        if (driver == null) {
+            driver = createDecoratedDriver();
+        }
+        return driver;
+    }
+
+    private WebDriver createDecoratedDriver() {
+        final WebDriver raw = driverFactory.createDriver();
+        return new EventFiringDecorator(new HighlightElementListener())
+                .decorate(raw);
+    }
+
+    public void quit() {
+        if (driver != null) {
+            driver.quit();
+            driver = null;
+        }
+    }
+}
--- a/src/main/java/ru/kovbasa/elements/BaseElement.java
+++ b/src/main/java/ru/kovbasa/elements/BaseElement.java
@@ -0,0 +1,27 @@
+package ru.kovbasa.elements;
+
+import org.openqa.selenium.WebElement;
+
+public abstract class BaseElement implements UIElement {
+
+    protected final WebElement element;
+
+    protected BaseElement(WebElement element) {
+        this.element = element;
+    }
+
+    @Override
+    public void click() {
+        element.click();
+    }
+
+    @Override
+    public String getText() {
+        return element.getText();
+    }
+
+    @Override
+    public boolean isDisplayed() {
+        return element.isDisplayed();
+    }
+}
--- a/src/main/java/ru/kovbasa/elements/Button.java
+++ b/src/main/java/ru/kovbasa/elements/Button.java
@@ -0,0 +1,14 @@
+package ru.kovbasa.elements;
+
+import org.openqa.selenium.WebElement;
+
+public class Button extends BaseElement {
+
+    public Button(WebElement element) {
+        super(element);
+    }
+
+    public boolean isEnabled() {
+        return element.isEnabled();
+    }
+}
--- a/src/main/java/ru/kovbasa/elements/CourseCard.java
+++ b/src/main/java/ru/kovbasa/elements/CourseCard.java
@@ -0,0 +1,77 @@
+package ru.kovbasa.elements;
+
+import org.openqa.selenium.By;
+import org.openqa.selenium.WebElement;
+
+import java.time.LocalDate;
+import java.time.Year;
+import java.time.format.DateTimeFormatter;
+import java.util.Locale;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class CourseCard extends BaseElement {
+
+    private final By titleLocator = By.cssSelector("h6 .sc-hrqzy3-1");
+    private final By dateLocator = By.cssSelector(".sc-157icee-1 .sc-hrqzy3-1");
+    private static final Pattern PRICE_PATTERN = Pattern.compile("(\\d[\\d\\s]*)\\s*[₽р]");
+
+    public CourseCard(WebElement element) {
+        super(element);
+    }
+
+    public String title() {
+        return element.findElement(titleLocator).getText().trim();
+    }
+
+    public LocalDate startDate() {
+        String raw = element.findElement(dateLocator).getText().trim();
+        if (raw.isEmpty()) {
+            throw new RuntimeException("Пустая дата на карточке курса: " + title());
+        }
+
+        String[] parts = raw.split("·");
+        String datePart = parts[0].trim();
+
+        if (datePart.startsWith("С ")) {
+            datePart = datePart.substring(2).trim();
+        }
+
+        datePart = datePart.replace(",", "").replace("года", "").trim();
+
+        boolean hasYear = datePart.matches(".*\\d{4}.*");
+
+        String normalized;
+        DateTimeFormatter formatter;
+
+        if (hasYear) {
+            normalized = datePart;
+            formatter = DateTimeFormatter.ofPattern("d MMMM yyyy", Locale.forLanguageTag("ru"));
+        } else {
+            normalized = datePart + " " + Year.now().getValue();
+            formatter = DateTimeFormatter.ofPattern("d MMMM yyyy", Locale.forLanguageTag("ru"));
+        }
+
+        return LocalDate.parse(normalized, formatter);
+    }
+
+    public int price() {
+        final String text = element.getText();
+        final Matcher matcher = PRICE_PATTERN.matcher(text);
+
+        int maxPrice = -1;
+        while (matcher.find()) {
+            final String raw = matcher.group(1).replace(" ", "");
+            final int parsed = Integer.parseInt(raw);
+            if (parsed > maxPrice) {
+                maxPrice = parsed;
+            }
+        }
+
+        if (maxPrice < 0) {
+            throw new RuntimeException("Цена курса не найдена в карточке: " + title());
+        }
+
+        return maxPrice;
+    }
+}
--- a/src/main/java/ru/kovbasa/elements/Link.java
+++ b/src/main/java/ru/kovbasa/elements/Link.java
@@ -0,0 +1,14 @@
+package ru.kovbasa.elements;
+
+import org.openqa.selenium.WebElement;
+
+public class Link extends BaseElement {
+
+    public Link(WebElement element) {
+        super(element);
+    }
+
+    public String getHref() {
+        return element.getAttribute("href");
+    }
+}
--- a/src/main/java/ru/kovbasa/elements/UIElement.java
+++ b/src/main/java/ru/kovbasa/elements/UIElement.java
@@ -0,0 +1,7 @@
+package ru.kovbasa.elements;
+
+public interface UIElement {
+    void click();
+    String getText();
+    boolean isDisplayed();
+}
--- a/src/main/java/ru/kovbasa/listeners/HighlightElementListener.java
+++ b/src/main/java/ru/kovbasa/listeners/HighlightElementListener.java
@@ -0,0 +1,158 @@
+package ru.kovbasa.listeners;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.openqa.selenium.JavascriptExecutor;
+import org.openqa.selenium.StaleElementReferenceException;
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.WebElement;
+import org.openqa.selenium.WrapsDriver;
+import org.openqa.selenium.support.events.WebDriverListener;
+
+public class HighlightElementListener implements WebDriverListener {
+    private static final Logger LOG = LoggerFactory.getLogger(HighlightElementListener.class);
+
+    private static final String HIGHLIGHT_STYLE =
+            "outline: 4px solid red !important; " +
+            "box-shadow: 0 0 0 4px rgba(255,0,0,0.20) !important; " +
+            "background: rgba(255,0,0,0.06) !important;";
+    private WebElement highlightedElement;
+    private String highlightedOriginalStyle;
+
+    @Override
+    public void beforeClick(WebElement element) {
+        try {
+            clearHighlight();
+            final WebElement tile = findTileContainer(element);
+            applyHighlight(tile);
+            pauseForVisibility();
+        } catch (RuntimeException e) {
+            LOG.debug("beforeClick highlight skipped", e);
+        }
+    }
+
+    @Override
+    public void afterClick(WebElement element) {
+        clearHighlight();
+    }
+
+    private void applyHighlight(WebElement element) {
+        if (element == null) {
+            return;
+        }
+
+        try {
+            final WebDriver raw = ((WrapsDriver) element).getWrappedDriver();
+            if (!(raw instanceof JavascriptExecutor)) {
+                return;
+            }
+
+            final JavascriptExecutor js = (JavascriptExecutor) raw;
+
+            String original = safeGetAttr(element, "style");
+            if (original == null) {
+                original = "";
+            }
+
+            this.highlightedElement = element;
+            this.highlightedOriginalStyle = original;
+
+            js.executeScript("arguments[0].setAttribute('style', arguments[1] + '; ' + arguments[2]);",
+                    element, original, HIGHLIGHT_STYLE);
+        } catch (StaleElementReferenceException ignored) {
+        } catch (RuntimeException e) {
+            LOG.debug("applyHighlight skipped", e);
+        }
+    }
+
+    private void clearHighlight() {
+        if (highlightedElement == null) {
+            return;
+        }
+
+        try {
+            final WebDriver raw = ((WrapsDriver) highlightedElement).getWrappedDriver();
+            if (!(raw instanceof JavascriptExecutor)) {
+                highlightedElement = null;
+                highlightedOriginalStyle = null;
+                return;
+            }
+
+            final JavascriptExecutor js = (JavascriptExecutor) raw;
+            final String original = highlightedOriginalStyle == null ? "" : highlightedOriginalStyle;
+            js.executeScript("arguments[0].setAttribute('style', arguments[1]);", highlightedElement, original);
+        } catch (StaleElementReferenceException ignored) {
+        } catch (RuntimeException e) {
+            LOG.debug("clearHighlight skipped", e);
+        } finally {
+            highlightedElement = null;
+            highlightedOriginalStyle = null;
+        }
+    }
+
+    private WebElement findTileContainer(WebElement element) {
+        try {
+            final String tag = safeGetTag(element);
+            final String href = safeGetAttr(element, "href");
+            final String cls = safeGetAttr(element, "class");
+
+            if ("a".equalsIgnoreCase(tag) && href != null &&
+                    (href.contains("/lessons/") || href.contains("/categories/"))) {
+                return element;
+            }
+            if (cls != null && cls.contains("sc-zzdkm7-0")) {
+                return element;
+            }
+
+            final WebDriver rawDriver = ((WrapsDriver) element).getWrappedDriver();
+            if (!(rawDriver instanceof JavascriptExecutor)) {
+                return element;
+            }
+
+            final JavascriptExecutor js = (JavascriptExecutor) rawDriver;
+
+            WebElement current = element;
+            for (int i = 0; i < 8; i++) {
+                final Object parentObj = js.executeScript("return arguments[0].parentElement;", current);
+                if (!(parentObj instanceof WebElement)) {
+                    break;
+                }
+
+                current = (WebElement) parentObj;
+
+                final String t = safeGetTag(current);
+                final String h = safeGetAttr(current, "href");
+                final String c = safeGetAttr(current, "class");
+
+                if ("a".equalsIgnoreCase(t) && h != null &&
+                        (h.contains("/lessons/") || h.contains("/categories/"))) {
+                    return current;
+                }
+                if (c != null && c.contains("sc-zzdkm7-0")) {
+                    return current;
+                }
+            }
+        } catch (RuntimeException e) {
+            LOG.debug("findTileContainer fallback to original element", e);
+        }
+        return element;
+    }
+
+    private String safeGetAttr(WebElement el, String name) {
+        try { return el.getAttribute(name); }
+        catch (Exception e) { return null; }
+    }
+
+    private String safeGetTag(WebElement el) {
+        try { return el.getTagName(); }
+        catch (Exception e) { return null; }
+    }
+
+    private void pauseForVisibility() {
+        try {
+            Thread.sleep(120);
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+        }
+    }
+}
--- a/src/main/java/ru/kovbasa/pages/CatalogPage.java
+++ b/src/main/java/ru/kovbasa/pages/CatalogPage.java
@@ -0,0 +1,355 @@
+package ru.kovbasa.pages;
+
+import com.google.inject.Inject;
+import java.time.Duration;
+import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.ThreadLocalRandom;
+
+import org.openqa.selenium.By;
+import org.openqa.selenium.JavascriptExecutor;
+import org.openqa.selenium.NoSuchElementException;
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.WebElement;
+import org.openqa.selenium.interactions.Actions;
+import org.openqa.selenium.support.ui.ExpectedCondition;
+import org.openqa.selenium.support.ui.WebDriverWait;
+
+import ru.kovbasa.config.TestConfig;
+import ru.kovbasa.driver.WebDriverProvider;
+import ru.kovbasa.elements.CourseCard;
+import ru.kovbasa.utils.PageUtils;
+
+public class CatalogPage {
+
+    private final WebDriver driver;
+
+    private final By courseCards = By.cssSelector("a.sc-zzdkm7-0");
+    private final By courseLinks = By.cssSelector("a[href*='/lessons/'], a[href*='/online/']");
+    private final By learningMenu = By.cssSelector("span[title='Обучение']");
+    private final By prepCoursesLink = By.xpath(
+            "//a[contains(normalize-space(),'Подготовительные курсы')]");
+    private final By showMoreButton = By.xpath("//button[contains(normalize-space(),'Показать еще')]");
+
+    @Inject
+    public CatalogPage(WebDriverProvider provider) {
+        this.driver = provider.getDriver();
+    }
+
+    public CatalogPage open() {
+        driver.get(TestConfig.getBaseUrl() + "/catalog/courses");
+        return this;
+    }
+
+    public WebElement findCourseByName(String name) {
+        final WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(15));
+        wait.until((ExpectedCondition<Boolean>) drv -> !drv.findElements(courseLinks).isEmpty());
+
+        final List<WebElement> links = driver.findElements(courseLinks);
+        return links.stream()
+                .filter(e -> e.getText().toLowerCase().contains(name.toLowerCase()))
+                .findFirst()
+                .orElseThrow(() -> new NoSuchElementException(
+                        "Course not found in catalog by name: " + name));
+    }
+
+    public List<WebElement> findCoursesByName(String name) {
+        final WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(15));
+        wait.until((ExpectedCondition<Boolean>) drv -> !drv.findElements(courseLinks).isEmpty());
+
+        return driver.findElements(courseLinks).stream()
+                .filter(e -> e.getText().toLowerCase().contains(name.toLowerCase()))
+                .toList();
+    }
+
+    public CoursePage clickCourseByName(String name) {
+        PageUtils.removeBottomBanner(driver);
+
+        final WebElement course = findCourseByName(name);
+
+        ((JavascriptExecutor) driver)
+                .executeScript("arguments[0].scrollIntoView({block:'center'});", course);
+
+        new Actions(driver)
+                .moveToElement(course)
+                .perform();
+        course.click();
+
+        return new CoursePage(driver);
+    }
+
+    public CoursePage clickRandomCourseByName(String name) {
+        PageUtils.removeBottomBanner(driver);
+
+        final List<WebElement> courses = findCoursesByName(name);
+        if (courses.isEmpty()) {
+            throw new NoSuchElementException("Course not found in catalog by name: " + name);
+        }
+
+        final WebElement chosen = courses.get(ThreadLocalRandom.current().nextInt(courses.size()));
+
+        ((JavascriptExecutor) driver)
+                .executeScript("arguments[0].scrollIntoView({block:'center'});", chosen);
+
+        new Actions(driver)
+                .moveToElement(chosen)
+                .perform();
+        chosen.click();
+
+        return new CoursePage(driver);
+    }
+
+    public List<CourseCard> getAllCourseCards() {
+        return driver.findElements(courseCards).stream()
+                .map(CourseCard::new)
+                .toList();
+    }
+
+    public List<CourseItem> getAllCourses() {
+        return getAllCourseCards().stream()
+                .map(card -> {
+                    try {
+                        return new CourseItem(card.title(), card.startDate());
+                    } catch (RuntimeException e) {
+                        return null;
+                    }
+                })
+                .filter(Objects::nonNull)
+                .toList();
+    }
+
+    public List<CourseItem> findEarliestCourses() {
+        final List<CourseItem> all = getAllCourses();
+
+        final LocalDate minDate = all.stream()
+                .map(CourseItem::startDate)
+                .reduce((left, right) -> left.isBefore(right) ? left : right)
+                .orElseThrow();
+
+        return all.stream()
+                .filter(c -> c.startDate().isEqual(minDate))
+                .sorted(Comparator.comparing(CourseItem::title))
+                .toList();
+    }
+
+    public List<CourseItem> findLatestCourses() {
+        final List<CourseItem> all = getAllCourses();
+
+        final LocalDate maxDate = all.stream()
+                .map(CourseItem::startDate)
+                .reduce((left, right) -> left.isAfter(right) ? left : right)
+                .orElseThrow();
+
+        return all.stream()
+                .filter(c -> c.startDate().isEqual(maxDate))
+                .sorted(Comparator.comparing(CourseItem::title))
+                .toList();
+    }
+
+    public List<CourseItem> findCoursesStartingFrom(LocalDate dateFrom) {
+        return getAllCourses().stream()
+                .filter(course -> !course.startDate().isBefore(dateFrom))
+                .sorted(Comparator.comparing(CourseItem::startDate).thenComparing(CourseItem::title))
+                .toList();
+    }
+
+    public CatalogPage openPreparatoryCourses() {
+        driver.get(TestConfig.getBaseUrl());
+        PageUtils.removeBottomBanner(driver);
+
+        final WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(15));
+        final WebElement menu = wait.until(drv -> drv.findElement(learningMenu));
+        menu.click();
+
+        final WebElement prep = wait.until(drv -> drv.findElements(prepCoursesLink).stream()
+                .filter(WebElement::isDisplayed)
+                .findFirst()
+                .orElse(null));
+
+        ((JavascriptExecutor) driver)
+                .executeScript("arguments[0].scrollIntoView({block:'center'});", prep);
+        prep.click();
+
+        wait.until(drv -> drv.findElements(
+                By.xpath("//*[contains(normalize-space(),'Подготовительные курсы')]")
+        ).stream().anyMatch(WebElement::isDisplayed));
+
+        expandAllCourses();
+        return this;
+    }
+
+    public List<PricedCourseItem> getAllCoursesWithPrice() {
+        return getAllCourseCards().stream()
+                .map(card -> {
+                    try {
+                        return new PricedCourseItem(card.title(), card.price());
+                    } catch (RuntimeException e) {
+                        return null;
+                    }
+                })
+                .filter(Objects::nonNull)
+                .toList();
+    }
+
+    public List<CourseLinkItem> getPreparatoryCourseLinks() {
+        final WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(15));
+        wait.until((ExpectedCondition<Boolean>) drv -> !drv.findElements(courseLinks).isEmpty());
+
+        final Map<String, String> titleByUrl = new LinkedHashMap<>();
+        for (WebElement link : driver.findElements(courseLinks)) {
+            if (!link.isDisplayed()) {
+                continue;
+            }
+            final String title = link.getText().trim();
+            final String url = link.getAttribute("href");
+            if (title.isEmpty() || url == null || !isCourseUrl(url)) {
+                continue;
+            }
+            titleByUrl.putIfAbsent(url, title);
+        }
+
+        final List<Map.Entry<String, String>> onlineEntries = titleByUrl.entrySet().stream()
+                .filter(entry -> entry.getKey().contains("/online/"))
+                .toList();
+
+        final List<CourseLinkItem> items = new ArrayList<>();
+        if (!onlineEntries.isEmpty()) {
+            onlineEntries.forEach(entry -> items.add(new CourseLinkItem(cleanTitle(entry.getValue()), entry.getKey())));
+            return items;
+        }
+
+        titleByUrl.forEach((url, title) -> items.add(new CourseLinkItem(cleanTitle(title), url)));
+        return items;
+    }
+
+    public List<PricedCourseItem> getPreparatoryCoursesWithDiscountedFullPrice() {
+        final List<CourseLinkItem> links = getPreparatoryCourseLinks();
+        return links.stream()
+                .map(link -> {
+                    driver.get(link.url());
+                    final CoursePage coursePage = new CoursePage(driver);
+                    final int price = coursePage.getPriceForComparison();
+                    String title = link.title();
+                    try {
+                        title = coursePage.getCourseTitle();
+                    } catch (RuntimeException ignored) { }
+                    return new PricedCourseItem(title, price);
+                })
+                .toList();
+    }
+
+    public List<CourseLinkItem> getCatalogLessonCourseLinks() {
+        open();
+
+        final WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(15));
+        wait.until((ExpectedCondition<Boolean>) drv -> !drv.findElements(courseLinks).isEmpty());
+
+        final Map<String, String> titleByUrl = new LinkedHashMap<>();
+        for (WebElement link : driver.findElements(courseLinks)) {
+            if (!link.isDisplayed()) {
+                continue;
+            }
+            final String title = link.getText().trim();
+            final String url = link.getAttribute("href");
+            if (title.isEmpty() || url == null || !url.contains("/lessons/")) {
+                continue;
+            }
+            titleByUrl.putIfAbsent(url, cleanTitle(title));
+        }
+
+        final List<CourseLinkItem> items = new ArrayList<>();
+        titleByUrl.forEach((url, title) -> items.add(new CourseLinkItem(title, url)));
+        return items;
+    }
+
+    public List<PricedCourseItem> getCatalogCoursesWithDiscountedFullPrice() {
+        final List<CourseLinkItem> links = getCatalogLessonCourseLinks();
+        return links.stream()
+                .map(link -> {
+                    driver.get(link.url());
+                    final CoursePage coursePage = new CoursePage(driver);
+                    final int price = coursePage.getPriceForComparison();
+                    String title = link.title();
+                    try {
+                        title = coursePage.getCourseTitle();
+                    } catch (RuntimeException ignored) { }
+                    return new PricedCourseItem(title, price);
+                })
+                .toList();
+    }
+
+    private void expandAllCourses() {
+        final WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(5));
+
+        while (true) {
+            try {
+                final WebElement button = wait.until(drv -> drv.findElements(showMoreButton).stream()
+                        .filter(WebElement::isDisplayed)
+                        .findFirst()
+                        .orElse(null));
+
+                ((JavascriptExecutor) driver)
+                        .executeScript("arguments[0].scrollIntoView({block:'center'});", button);
+                button.click();
+                wait.until(drv -> !drv.findElements(courseLinks).isEmpty());
+            } catch (RuntimeException ignored) {
+                break;
+            }
+        }
+    }
+
+    private boolean isCourseUrl(String url) {
+        return url.contains("/lessons/") || url.contains("/online/");
+    }
+
+    private String cleanTitle(String rawTitle) {
+        final String[] lines = rawTitle.split("\\R");
+        for (int i = lines.length - 1; i >= 0; i--) {
+            final String line = lines[i].trim();
+            if (!line.isEmpty()) {
+                return line;
+            }
+        }
+        return rawTitle.trim();
+    }
+
+    public PricedCourseItem findMostExpensiveCourse() {
+        return getAllCoursesWithPrice().stream()
+                .reduce((left, right) -> left.price() >= right.price() ? left : right)
+                .orElseThrow(() -> new NoSuchElementException("Priced course cards are not found"));
+    }
+
+    public PricedCourseItem findCheapestCourse() {
+        return getAllCoursesWithPrice().stream()
+                .reduce((left, right) -> left.price() <= right.price() ? left : right)
+                .orElseThrow(() -> new NoSuchElementException("Priced course cards are not found"));
+    }
+
+    public CoursePage openCourse(CourseItem course) {
+        PageUtils.removeBottomBanner(driver);
+
+        final WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(10));
+
+        final WebElement card = wait.until(drv ->
+                drv.findElements(courseCards).stream()
+                        .filter(c -> new CourseCard(c).title().equals(course.title()))
+                        .findFirst()
+                        .orElse(null)
+        );
+
+        ((JavascriptExecutor) driver)
+                .executeScript("arguments[0].scrollIntoView({block:'center'});", card);
+
+        new Actions(driver)
+                .moveToElement(card)
+                .perform();
+        card.click();
+
+        return new CoursePage(driver);
+    }
+}
--- a/src/main/java/ru/kovbasa/pages/CategoryPage.java
+++ b/src/main/java/ru/kovbasa/pages/CategoryPage.java
@@ -0,0 +1,24 @@
+package ru.kovbasa.pages;
+
+import org.jsoup.Jsoup;
+import org.jsoup.nodes.Document;
+import org.openqa.selenium.WebDriver;
+
+public class CategoryPage {
+
+    private final WebDriver driver;
+
+    public CategoryPage(WebDriver driver) {
+        this.driver = driver;
+    }
+
+    public String getHeader() {
+        Document doc = Jsoup.parse(driver.getPageSource());
+        return doc.select("h1")
+                .stream()
+                .map(e -> e.text().trim())
+                .filter(t -> !t.isEmpty())
+                .findFirst()
+                .orElseThrow(() -> new RuntimeException("Category header not found"));
+    }
+}
--- a/src/main/java/ru/kovbasa/pages/CourseItem.java
+++ b/src/main/java/ru/kovbasa/pages/CourseItem.java
@@ -0,0 +1,6 @@
+package ru.kovbasa.pages;
+
+import java.time.LocalDate;
+
+public record CourseItem(String title, LocalDate startDate) {
+}
--- a/src/main/java/ru/kovbasa/pages/CourseLinkItem.java
+++ b/src/main/java/ru/kovbasa/pages/CourseLinkItem.java
@@ -0,0 +1,4 @@
+package ru.kovbasa.pages;
+
+public record CourseLinkItem(String title, String url) {
+}
--- a/src/main/java/ru/kovbasa/pages/CoursePage.java
+++ b/src/main/java/ru/kovbasa/pages/CoursePage.java
@@ -0,0 +1,139 @@
+package ru.kovbasa.pages;
+
+import org.jsoup.Jsoup;
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.openqa.selenium.By;
+import org.openqa.selenium.JavascriptExecutor;
+import org.openqa.selenium.NoSuchElementException;
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.WebElement;
+import org.openqa.selenium.interactions.Actions;
+import org.openqa.selenium.support.ui.WebDriverWait;
+import ru.kovbasa.elements.Button;
+import ru.kovbasa.utils.PageUtils;
+
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.Locale;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class CoursePage {
+    private static final Pattern PRICE_PATTERN = Pattern.compile("(\\d[\\d\\s\\u00A0]*)\\s*₽");
+
+
+    private final WebDriver driver;
+
+    private final By enrollButton = By.cssSelector("button[data-testid='enroll-button']");
+    private final By fullPriceTab = By.xpath("//div[normalize-space()='Полная']/parent::div");
+    private final By fullDiscountLabel = By.xpath("//p[contains(normalize-space(),'Полная стоимость со скидкой')]");
+    private final By anyPriceText = By.xpath("//*[contains(normalize-space(),'₽')]");
+
+    public CoursePage(WebDriver driver) {
+        this.driver = driver;
+    }
+
+    public String getCourseTitle() {
+        return getFirstH1();
+    }
+
+    public String getFirstH1() {
+        Document doc = Jsoup.parse(driver.getPageSource());
+        return doc.select("h1")
+                .stream()
+                .map(e -> e.text().trim())
+                .filter(t -> !t.isEmpty())
+                .findFirst()
+                .orElseThrow(() -> new RuntimeException("Course title not found"));
+    }
+
+    public LocalDate getCourseStartDate(LocalDate catalogDate) {
+        Document doc = Jsoup.parse(driver.getPageSource());
+
+        Element dateElement = doc.selectFirst("p.sc-3cb1l3-0");
+        if (dateElement == null) {
+            throw new RuntimeException("Start date <p> not found on course page");
+        }
+
+        String text = dateElement.text().trim();
+        String fullDate = text + ", " + catalogDate.getYear();
+
+        DateTimeFormatter formatter =
+                DateTimeFormatter.ofPattern("d MMMM, yyyy", Locale.forLanguageTag("ru"));
+
+        return LocalDate.parse(fullDate, formatter);
+    }
+
+    public Button getEnrollButton() {
+        return new Button(driver.findElement(enrollButton));
+    }
+
+    public void clickEnroll() {
+        getEnrollButton().click();
+    }
+
+    public int getDiscountedFullPrice() {
+        PageUtils.removeBottomBanner(driver);
+
+        final WebDriverWait wait = new WebDriverWait(driver, java.time.Duration.ofSeconds(10));
+        final WebElement tab = wait.until(drv -> drv.findElements(fullPriceTab).stream()
+                .filter(WebElement::isDisplayed)
+                .findFirst()
+                .orElse(null));
+
+        ((JavascriptExecutor) driver).executeScript("arguments[0].scrollIntoView({block:'center'});", tab);
+        try {
+            tab.click();
+        } catch (RuntimeException ignored) {
+            new Actions(driver).moveToElement(tab).click().perform();
+        }
+
+        final WebElement label = wait.until(drv -> drv.findElements(fullDiscountLabel).stream()
+                .filter(WebElement::isDisplayed)
+                .findFirst()
+                .orElse(null));
+
+        final WebElement priceElement = findPriceElementNearLabel(label);
+        final String rawPrice = priceElement.getText();
+        return parsePrice(rawPrice);
+    }
+
+    public int getPriceForComparison() {
+        if (hasDisplayed(fullPriceTab)) {
+            try {
+                return getDiscountedFullPrice();
+            } catch (RuntimeException ignored) { }
+        }
+
+        final WebDriverWait wait = new WebDriverWait(driver, java.time.Duration.ofSeconds(10));
+        final WebElement priceElement = wait.until(drv -> drv.findElements(anyPriceText).stream()
+                .filter(WebElement::isDisplayed)
+                .filter(el -> PRICE_PATTERN.matcher(el.getText()).find())
+                .findFirst()
+                .orElse(null));
+
+        return parsePrice(priceElement.getText());
+    }
+
+    private WebElement findPriceElementNearLabel(WebElement label) {
+        try {
+            return label.findElement(By.xpath("following-sibling::div[1]"));
+        } catch (NoSuchElementException ignored) {
+            return label.findElement(By.xpath("following::div[contains(normalize-space(),'₽')][1]"));
+        }
+    }
+
+    private int parsePrice(String rawPrice) {
+        final Matcher matcher = PRICE_PATTERN.matcher(rawPrice);
+        if (!matcher.find()) {
+            throw new IllegalArgumentException("Не удалось распарсить цену из строки: " + rawPrice);
+        }
+        final String normalized = matcher.group(1).replace('\u00A0', ' ').replace(" ", "");
+        return Integer.parseInt(normalized);
+    }
+
+    private boolean hasDisplayed(By by) {
+        return driver.findElements(by).stream().anyMatch(WebElement::isDisplayed);
+    }
+}
--- a/src/main/java/ru/kovbasa/pages/MainPage.java
+++ b/src/main/java/ru/kovbasa/pages/MainPage.java
@@ -0,0 +1,70 @@
+package ru.kovbasa.pages;
+
+import com.google.inject.Inject;
+import org.openqa.selenium.By;
+import org.openqa.selenium.ElementClickInterceptedException;
+import org.openqa.selenium.JavascriptExecutor;
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.WebElement;
+import org.openqa.selenium.interactions.Actions;
+import org.openqa.selenium.support.ui.WebDriverWait;
+import ru.kovbasa.config.TestConfig;
+import ru.kovbasa.driver.WebDriverProvider;
+import ru.kovbasa.utils.PageUtils;
+
+import java.time.Duration;
+import java.util.List;
+import java.util.concurrent.ThreadLocalRandom;
+
+public class MainPage {
+
+    private final WebDriver driver;
+
+    private final By menuLearning = By.cssSelector("span[title='Обучение']");
+    private final By categories = By.cssSelector("a[href*='/categories/']");
+
+    @Inject
+    public MainPage(WebDriverProvider provider) {
+        this.driver = provider.getDriver();
+    }
+
+    public MainPage open() {
+        driver.get(TestConfig.getBaseUrl());
+        return this;
+    }
+
+    public String clickRandomCategory() {
+        PageUtils.removeBottomBanner(driver);
+
+        final WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(10));
+
+        final WebElement menu = wait.until(drv -> drv.findElement(menuLearning));
+        menu.click();
+
+        final List<WebElement> els = wait.until(drv -> {
+            final List<WebElement> found = drv.findElements(categories).stream()
+                    .filter(WebElement::isDisplayed)
+                    .toList();
+            return found.isEmpty() ? null : found;
+        });
+
+        final WebElement chosen = els.get(ThreadLocalRandom.current().nextInt(els.size()));
+        final String href = chosen.getAttribute("href");
+
+        ((JavascriptExecutor) driver)
+                .executeScript("arguments[0].scrollIntoView({block:'center'});", chosen);
+
+        try {
+            chosen.click();
+        } catch (ElementClickInterceptedException ignored) {
+            new Actions(driver).moveToElement(chosen).click().perform();
+        }
+
+        final String categorySlug = href.substring(href.lastIndexOf('/') + 1);
+        if (!driver.getCurrentUrl().contains(categorySlug)) {
+            driver.get(TestConfig.getBaseUrl() + "/catalog/courses?categories=" + categorySlug);
+        }
+
+        return href;
+    }
+}
--- a/src/main/java/ru/kovbasa/pages/PricedCourseItem.java
+++ b/src/main/java/ru/kovbasa/pages/PricedCourseItem.java
@@ -0,0 +1,4 @@
+package ru.kovbasa.pages;
+
+public record PricedCourseItem(String title, int price) {
+}
--- a/src/main/java/ru/kovbasa/utils/PageUtils.java
+++ b/src/main/java/ru/kovbasa/utils/PageUtils.java
@@ -0,0 +1,22 @@
+package ru.kovbasa.utils;
+
+import org.openqa.selenium.JavascriptExecutor;
+import org.openqa.selenium.WebDriver;
+
+public final class PageUtils {
+
+    private PageUtils() {
+    }
+
+    public static void removeBottomBanner(WebDriver driver) {
+        try {
+            ((JavascriptExecutor) driver)
+                    .executeScript(
+                            "document.querySelectorAll('.sc-11pdrud-1.cmIXWc')" +
+                                    ".forEach(e => e.remove());"
+                    );
+        } catch (Exception ignored) {
+        }
+    }
+
+}
--- a/src/main/java/ru/otus/stub/helper/HttpHelper.java
+++ b/src/main/java/ru/otus/stub/helper/HttpHelper.java
@@ -0,0 +1,56 @@
+package ru.otus.stub.helper;
+
+import io.restassured.RestAssured;
+import io.restassured.common.mapper.TypeRef;
+import ru.otus.stub.model.Course;
+import ru.otus.stub.model.User;
+import ru.otus.stub.model.UserScore;
+
+import java.util.List;
+
+public class HttpHelper {
+
+    private final String baseUri;
+    private final String basePath;
+
+    public HttpHelper(String baseUri, String basePath) {
+        this.baseUri = baseUri;
+        this.basePath = basePath;
+    }
+
+    public List<User> getAllUsers() {
+        return RestAssured.given()
+                .baseUri(baseUri)
+                .basePath(basePath)
+                .when()
+                .get("/user/get/all")
+                .then()
+                .statusCode(200)
+                .extract()
+                .as(new TypeRef<>() { });
+    }
+
+    public List<Course> getAllCourses() {
+        return RestAssured.given()
+                .baseUri(baseUri)
+                .basePath(basePath)
+                .when()
+                .get("/cource/get/all")
+                .then()
+                .statusCode(200)
+                .extract()
+                .as(new TypeRef<>() { });
+    }
+
+    public UserScore getUserScore(long id) {
+        return RestAssured.given()
+                .baseUri(baseUri)
+                .basePath(basePath)
+                .when()
+                .get("/user/get/{id}", id)
+                .then()
+                .statusCode(200)
+                .extract()
+                .as(UserScore.class);
+    }
+}
--- a/src/main/java/ru/otus/stub/helper/MqHelper.java
+++ b/src/main/java/ru/otus/stub/helper/MqHelper.java
@@ -0,0 +1,38 @@
+package ru.otus.stub.helper;
+
+import java.time.Duration;
+import java.util.Map;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.TimeUnit;
+
+public class MqHelper {
+
+    private final Map<String, BlockingQueue<String>> queues = new ConcurrentHashMap<>();
+
+    public void send(String queueName, String payload) {
+        queue(queueName).add(payload);
+    }
+
+    public String receive(String queueName, Duration timeout) {
+        try {
+            return queue(queueName).poll(timeout.toMillis(), TimeUnit.MILLISECONDS);
+        } catch (InterruptedException exception) {
+            Thread.currentThread().interrupt();
+            throw new IllegalStateException("Interrupted while receiving from queue: " + queueName, exception);
+        }
+    }
+
+    public int size(String queueName) {
+        return queue(queueName).size();
+    }
+
+    public void clear(String queueName) {
+        queue(queueName).clear();
+    }
+
+    private BlockingQueue<String> queue(String queueName) {
+        return queues.computeIfAbsent(queueName, key -> new LinkedBlockingQueue<>());
+    }
+}
--- a/src/main/java/ru/otus/stub/helper/SoapHelper.java
+++ b/src/main/java/ru/otus/stub/helper/SoapHelper.java
@@ -0,0 +1,48 @@
+package ru.otus.stub.helper;
+
+import io.restassured.RestAssured;
+import io.restassured.path.xml.XmlPath;
+import ru.otus.stub.model.UserScore;
+
+public class SoapHelper {
+
+    private final String baseUri;
+    private final String basePath;
+
+    public SoapHelper(String baseUri, String basePath) {
+        this.baseUri = baseUri;
+        this.basePath = basePath;
+    }
+
+    public UserScore getUserScore(long id) {
+        final String request = """
+                <soapenv:Envelope
+                  xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
+                  xmlns:stu="http://otus.ru/stub">
+                  <soapenv:Header/>
+                  <soapenv:Body>
+                    <stu:GetUserScoreRequest>
+                      <stu:id>${id}</stu:id>
+                    </stu:GetUserScoreRequest>
+                  </soapenv:Body>
+                </soapenv:Envelope>
+                """.replace("${id}", String.valueOf(id));
+
+        final String response = RestAssured.given()
+                .baseUri(baseUri)
+                .basePath(basePath)
+                .contentType("text/xml; charset=UTF-8")
+                .body(request)
+                .when()
+                .post("/soap/user/score")
+                .then()
+                .statusCode(200)
+                .extract()
+                .asString();
+
+        final XmlPath xml = new XmlPath(response);
+        final String name = xml.getString("Envelope.Body.GetUserScoreResponse.name");
+        final int score = xml.getInt("Envelope.Body.GetUserScoreResponse.score");
+        return new UserScore(name, score);
+    }
+}
--- a/src/main/java/ru/otus/stub/helper/SqlHelper.java
+++ b/src/main/java/ru/otus/stub/helper/SqlHelper.java
@@ -0,0 +1,63 @@
+package ru.otus.stub.helper;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.ResultSetMetaData;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+public class SqlHelper {
+
+    private final String jdbcUrl;
+    private final String username;
+    private final String password;
+
+    public SqlHelper(String jdbcUrl, String username, String password) {
+        this.jdbcUrl = jdbcUrl;
+        this.username = username;
+        this.password = password;
+    }
+
+    public int executeUpdate(String sql) {
+        try (Connection connection = openConnection();
+             PreparedStatement statement = connection.prepareStatement(sql)) {
+            return statement.executeUpdate();
+        } catch (SQLException exception) {
+            throw new IllegalStateException("SQL update failed: " + sql, exception);
+        }
+    }
+
+    public List<Map<String, Object>> selectRows(String sql) {
+        try (Connection connection = openConnection();
+             PreparedStatement statement = connection.prepareStatement(sql);
+             ResultSet resultSet = statement.executeQuery()) {
+            return mapRows(resultSet);
+        } catch (SQLException exception) {
+            throw new IllegalStateException("SQL query failed: " + sql, exception);
+        }
+    }
+
+    private Connection openConnection() throws SQLException {
+        return DriverManager.getConnection(jdbcUrl, username, password);
+    }
+
+    private List<Map<String, Object>> mapRows(ResultSet resultSet) throws SQLException {
+        final List<Map<String, Object>> rows = new ArrayList<>();
+        final ResultSetMetaData metaData = resultSet.getMetaData();
+        final int columnsCount = metaData.getColumnCount();
+
+        while (resultSet.next()) {
+            final Map<String, Object> row = new LinkedHashMap<>();
+            for (int column = 1; column <= columnsCount; column++) {
+                row.put(metaData.getColumnLabel(column), resultSet.getObject(column));
+            }
+            rows.add(row);
+        }
+        return rows;
+    }
+}
--- a/src/main/java/ru/otus/stub/model/Course.java
+++ b/src/main/java/ru/otus/stub/model/Course.java
@@ -0,0 +1,4 @@
+package ru.otus.stub.model;
+
+public record Course(String name, int price) {
+}
--- a/src/main/java/ru/otus/stub/model/User.java
+++ b/src/main/java/ru/otus/stub/model/User.java
@@ -0,0 +1,4 @@
+package ru.otus.stub.model;
+
+public record User(String name, String cource, String email, int age) {
+}
--- a/src/main/java/ru/otus/stub/model/UserScore.java
+++ b/src/main/java/ru/otus/stub/model/UserScore.java
@@ -0,0 +1,4 @@
+package ru.otus.stub.model;
+
+public record UserScore(String name, int score) {
+}
--- a/src/test/java/ru/kovbasa/bdd/CucumberTest.java
+++ b/src/test/java/ru/kovbasa/bdd/CucumberTest.java
@@ -0,0 +1,17 @@
+package ru.kovbasa.bdd;
+
+import org.junit.platform.suite.api.ConfigurationParameter;
+import org.junit.platform.suite.api.IncludeEngines;
+import org.junit.platform.suite.api.SelectClasspathResource;
+import org.junit.platform.suite.api.Suite;
+
+import static io.cucumber.junit.platform.engine.Constants.GLUE_PROPERTY_NAME;
+import static io.cucumber.junit.platform.engine.Constants.PLUGIN_PROPERTY_NAME;
+
+@Suite
+@IncludeEngines("cucumber")
+@SelectClasspathResource("features/stub_frontend.feature")
+@ConfigurationParameter(key = GLUE_PROPERTY_NAME, value = "ru.kovbasa.bdd")
+@ConfigurationParameter(key = PLUGIN_PROPERTY_NAME, value = "pretty")
+public class CucumberTest {
+}
--- a/src/test/java/ru/kovbasa/bdd/hooks/Hooks.java
+++ b/src/test/java/ru/kovbasa/bdd/hooks/Hooks.java
@@ -0,0 +1,60 @@
+package ru.kovbasa.bdd.hooks;
+
+import com.google.inject.Injector;
+import io.cucumber.java.After;
+import io.cucumber.java.AfterAll;
+import io.cucumber.java.BeforeAll;
+import com.github.tomakehurst.wiremock.WireMockServer;
+import ru.kovbasa.config.InjectorProvider;
+import ru.kovbasa.driver.WebDriverProvider;
+
+import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
+import static com.github.tomakehurst.wiremock.client.WireMock.get;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlPathEqualTo;
+import static com.github.tomakehurst.wiremock.core.WireMockConfiguration.wireMockConfig;
+
+public class Hooks {
+
+    private static WireMockServer frontendStubServer;
+
+    @BeforeAll
+    public static void beforeAll() {
+        if (frontendStubServer == null) {
+            frontendStubServer = new WireMockServer(wireMockConfig().port(8089));
+            frontendStubServer.start();
+            frontendStubServer.stubFor(get(urlPathEqualTo("/frontend"))
+                    .willReturn(aResponse()
+                            .withStatus(200)
+                            .withHeader("Content-Type", "text/html; charset=UTF-8")
+                            .withBody("""
+                                    <!doctype html>
+                                    <html lang="en">
+                                    <head>
+                                      <meta charset="UTF-8">
+                                      <title>Stub Frontend</title>
+                                    </head>
+                                    <body>
+                                      <h1 id="title">Stub Frontend</h1>
+                                      <p id="description">UI connected to WireMock stub backend</p>
+                                    </body>
+                                    </html>
+                                    """)));
+            frontendStubServer.stubFor(get(urlPathEqualTo("/favicon.ico"))
+                    .willReturn(aResponse().withStatus(204)));
+        }
+    }
+
+    @After
+    public void afterScenario() {
+        final Injector injector = InjectorProvider.getInjector();
+        injector.getInstance(WebDriverProvider.class).quit();
+    }
+
+    @AfterAll
+    public static void afterAll() {
+        if (frontendStubServer != null) {
+            frontendStubServer.stop();
+            frontendStubServer = null;
+        }
+    }
+}
--- a/src/test/java/ru/kovbasa/bdd/steps/CatalogSteps.java
+++ b/src/test/java/ru/kovbasa/bdd/steps/CatalogSteps.java
@@ -0,0 +1,159 @@
+package ru.kovbasa.bdd.steps;
+
+import com.google.inject.Injector;
+import io.cucumber.java.ru.Дано;
+import io.cucumber.java.ru.И;
+import io.cucumber.java.ru.Когда;
+import io.cucumber.java.ru.Тогда;
+import org.junit.jupiter.api.Assertions;
+import ru.kovbasa.config.InjectorProvider;
+import ru.kovbasa.pages.CatalogPage;
+import ru.kovbasa.pages.CourseItem;
+import ru.kovbasa.pages.CoursePage;
+import ru.kovbasa.pages.PricedCourseItem;
+
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.List;
+import java.util.Locale;
+
+public class CatalogSteps {
+
+    private static final DateTimeFormatter DATE_FORMATTER =
+            DateTimeFormatter.ofPattern("dd.MM.yyyy", Locale.forLanguageTag("ru"));
+
+    private CoursePage openedCoursePage;
+    private List<CourseItem> coursesStartingFromDate;
+    private LocalDate searchDate;
+    private PricedCourseItem mostExpensiveCourse;
+    private PricedCourseItem cheapestCourse;
+    private PricedCourseItem mostExpensiveCatalogCourse;
+    private PricedCourseItem cheapestCatalogCourse;
+
+    @Дано("Открыт браузер {word}")
+    public void openBrowser(String browser) {
+        System.setProperty("browser", browser.toLowerCase(Locale.ROOT));
+    }
+
+    @Когда("Открыт каталог курсов")
+    public void openCatalog() {
+        getCatalogPage().open();
+    }
+
+    @Когда("Найден курс {string} и выбран случайный из найденных")
+    public void findCourseAndOpenRandom(String courseName) {
+        openedCoursePage = getCatalogPage().clickRandomCourseByName(courseName);
+    }
+
+    @Тогда("Заголовок страницы курса содержит {string}")
+    public void coursePageTitleContains(String expectedCourseName) {
+        final String title = openedCoursePage.getCourseTitle();
+        Assertions.assertTrue(
+                title.toLowerCase(Locale.ROOT).contains(expectedCourseName.toLowerCase(Locale.ROOT)),
+                "Заголовок страницы курса должен содержать: " + expectedCourseName + ", фактически: " + title
+        );
+    }
+
+    @Когда("Найдены курсы со стартом {string} или позже")
+    public void findCoursesFromDate(String date) {
+        searchDate = LocalDate.parse(date, DATE_FORMATTER);
+        coursesStartingFromDate = getCatalogPage().findCoursesStartingFrom(searchDate);
+    }
+
+    @Тогда("В консоль выведены найденные курсы и даты старта")
+    public void printCoursesAndStartDates() {
+        Assertions.assertFalse(coursesStartingFromDate.isEmpty(), "Не найдено курсов по заданной дате");
+
+        coursesStartingFromDate.forEach(course -> System.out.println(
+                "Курс: " + course.title() + ", дата старта: " + course.startDate().format(DATE_FORMATTER)
+        ));
+
+        final boolean allAfterOrEqual = coursesStartingFromDate.stream()
+                .allMatch(course -> !course.startDate().isBefore(searchDate));
+
+        Assertions.assertTrue(
+                allAfterOrEqual,
+                "Среди найденных есть курсы с датой старта раньше " + searchDate.format(DATE_FORMATTER)
+        );
+    }
+
+    @Когда("Открыт раздел Обучение и Подготовительные курсы")
+    public void openPreparatoryCourses() {
+        getCatalogPage().openPreparatoryCourses();
+    }
+
+    @И("Выбраны самый дорогой и самый дешевый курсы с помощью filter")
+    public void findMostExpensiveAndCheapestByFilter() {
+        final List<PricedCourseItem> pricedCourses = getCatalogPage().getPreparatoryCoursesWithDiscountedFullPrice();
+        Assertions.assertFalse(pricedCourses.isEmpty(), "Не найдено курсов с ценой");
+
+        final int maxPrice = pricedCourses.stream().mapToInt(PricedCourseItem::price).max().orElseThrow();
+        final int minPrice = pricedCourses.stream().mapToInt(PricedCourseItem::price).min().orElseThrow();
+
+        mostExpensiveCourse = pricedCourses.stream()
+                .filter(course -> course.price() == maxPrice)
+                .findFirst()
+                .orElseThrow();
+
+        cheapestCourse = pricedCourses.stream()
+                .filter(course -> course.price() == minPrice)
+                .findFirst()
+                .orElseThrow();
+    }
+
+    @Тогда("В консоль выведена информация о самом дорогом и самом дешевом курсе")
+    public void printMostExpensiveAndCheapestCourse() {
+        System.out.println(
+                "Самый дорогой курс: " + mostExpensiveCourse.title() + ", цена: " + mostExpensiveCourse.price()
+        );
+        System.out.println(
+                "Самый дешевый курс: " + cheapestCourse.title() + ", цена: " + cheapestCourse.price()
+        );
+
+        Assertions.assertTrue(
+                mostExpensiveCourse.price() >= cheapestCourse.price(),
+                "Цена самого дорогого курса должна быть не меньше цены самого дешевого"
+        );
+    }
+
+    @Когда("В каталоге курсов выбраны самый дорогой и самый дешевый курсы по полной стоимости со скидкой с помощью filter")
+    public void findMostExpensiveAndCheapestInCatalogByFullDiscountedPrice() {
+        final List<PricedCourseItem> pricedCourses = getCatalogPage().getCatalogCoursesWithDiscountedFullPrice();
+        Assertions.assertFalse(pricedCourses.isEmpty(), "Не найдено курсов с ценой в общем каталоге");
+
+        final int maxPrice = pricedCourses.stream().mapToInt(PricedCourseItem::price).max().orElseThrow();
+        final int minPrice = pricedCourses.stream().mapToInt(PricedCourseItem::price).min().orElseThrow();
+
+        mostExpensiveCatalogCourse = pricedCourses.stream()
+                .filter(course -> course.price() == maxPrice)
+                .findFirst()
+                .orElseThrow();
+
+        cheapestCatalogCourse = pricedCourses.stream()
+                .filter(course -> course.price() == minPrice)
+                .findFirst()
+                .orElseThrow();
+    }
+
+    @Тогда("В консоль выведена информация о самом дорогом и самом дешевом курсе в каталоге")
+    public void printMostExpensiveAndCheapestCourseInCatalog() {
+        System.out.println(
+                "Самый дорогой курс в каталоге: "
+                        + mostExpensiveCatalogCourse.title() + ", цена: " + mostExpensiveCatalogCourse.price()
+        );
+        System.out.println(
+                "Самый дешевый курс в каталоге: "
+                        + cheapestCatalogCourse.title() + ", цена: " + cheapestCatalogCourse.price()
+        );
+
+        Assertions.assertTrue(
+                mostExpensiveCatalogCourse.price() >= cheapestCatalogCourse.price(),
+                "Цена самого дорогого курса в каталоге должна быть не меньше цены самого дешевого"
+        );
+    }
+
+    private CatalogPage getCatalogPage() {
+        final Injector injector = InjectorProvider.getInjector();
+        return injector.getInstance(CatalogPage.class);
+    }
+}
--- a/src/test/java/ru/kovbasa/bdd/steps/StubFrontendSteps.java
+++ b/src/test/java/ru/kovbasa/bdd/steps/StubFrontendSteps.java
@@ -0,0 +1,53 @@
+package ru.kovbasa.bdd.steps;
+
+import com.google.inject.Injector;
+import io.cucumber.java.ru.Дано;
+import io.cucumber.java.ru.Когда;
+import io.cucumber.java.ru.Тогда;
+import org.junit.jupiter.api.Assertions;
+import org.openqa.selenium.By;
+import org.openqa.selenium.WebDriver;
+import ru.kovbasa.config.InjectorProvider;
+import ru.kovbasa.config.TestConfig;
+import ru.kovbasa.driver.WebDriverProvider;
+
+import java.util.Locale;
+
+public class StubFrontendSteps {
+
+    @Дано("Открыт браузер для frontend {word}")
+    public void openBrowser(String browser) {
+        final String existingBrowser = System.getProperty("browser");
+        if (existingBrowser == null || existingBrowser.isBlank()) {
+            System.setProperty("browser", browser.toLowerCase(Locale.ROOT));
+        }
+    }
+
+    @Когда("Открыта страница stub frontend")
+    public void openStubFrontend() {
+        getDriver().get(TestConfig.getBaseUrl() + "/frontend");
+    }
+
+    @Тогда("Заголовок страницы равен {string}")
+    public void titleShouldBe(String expectedTitle) {
+        final String actualTitle = getDriver().getTitle();
+        Assertions.assertEquals(expectedTitle, actualTitle);
+    }
+
+    @Тогда("На странице есть заголовок {string}")
+    public void pageHasHeading(String expectedHeading) {
+        final String actualHeading = getDriver().findElement(By.id("title")).getText();
+        Assertions.assertEquals(expectedHeading, actualHeading);
+    }
+
+    @Тогда("На странице есть описание {string}")
+    public void pageHasDescription(String expectedDescription) {
+        final String actualDescription = getDriver().findElement(By.id("description")).getText();
+        Assertions.assertEquals(expectedDescription, actualDescription);
+    }
+
+    private WebDriver getDriver() {
+        final Injector injector = InjectorProvider.getInjector();
+        return injector.getInstance(WebDriverProvider.class).getDriver();
+    }
+}
--- a/src/test/java/ru/otus/stub/tests/BaseWireMockStubTest.java
+++ b/src/test/java/ru/otus/stub/tests/BaseWireMockStubTest.java
@@ -0,0 +1,92 @@
+package ru.otus.stub.tests;
+
+import com.github.tomakehurst.wiremock.junit5.WireMockExtension;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
+import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;
+import static com.github.tomakehurst.wiremock.client.WireMock.get;
+import static com.github.tomakehurst.wiremock.client.WireMock.post;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlPathEqualTo;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlPathMatching;
+import static com.github.tomakehurst.wiremock.core.WireMockConfiguration.wireMockConfig;
+
+abstract class BaseWireMockStubTest {
+
+    @RegisterExtension
+    protected static final WireMockExtension WIREMOCK = WireMockExtension.newInstance()
+            .options(wireMockConfig().dynamicPort())
+            .build();
+
+    @BeforeEach
+    void registerContracts() {
+        WIREMOCK.resetAll();
+
+        WIREMOCK.stubFor(get(urlPathEqualTo("/user/get/all"))
+                .willReturn(aResponse()
+                        .withStatus(200)
+                        .withHeader("Content-Type", "application/json")
+                        .withBody("""
+                                [
+                                  { "name": "Test user", "cource": "QA", "email": "test@test.test", "age": 23 },
+                                  { "name": "Test user 2", "cource": "QA java", "email": "test2@test.test", "age": 27 }
+                                ]
+                                """)));
+
+        WIREMOCK.stubFor(get(urlPathEqualTo("/cource/get/all"))
+                .willReturn(aResponse()
+                        .withStatus(200)
+                        .withHeader("Content-Type", "application/json")
+                        .withBody("""
+                                [
+                                  { "name": "QA java", "price": 15000 },
+                                  { "name": "Java", "price": 12000 }
+                                ]
+                                """)));
+
+        WIREMOCK.stubFor(get(urlPathMatching("/user/get/\\d+"))
+                .willReturn(aResponse()
+                        .withStatus(200)
+                        .withHeader("Content-Type", "application/json")
+                        .withBody("""
+                                { "name": "Test user", "score": 78 }
+                                """)));
+
+        WIREMOCK.stubFor(post(urlPathEqualTo("/soap/user/score"))
+                .withRequestBody(com.github.tomakehurst.wiremock.client.WireMock.containing("GetUserScoreRequest"))
+                .withRequestBody(com.github.tomakehurst.wiremock.client.WireMock.containing("<stu:id>"))
+                .willReturn(aResponse()
+                        .withStatus(200)
+                        .withHeader("Content-Type", "text/xml; charset=UTF-8")
+                        .withBody("""
+                                <Envelope>
+                                  <Body>
+                                    <GetUserScoreResponse>
+                                      <name>Test user</name>
+                                      <score>78</score>
+                                    </GetUserScoreResponse>
+                                  </Body>
+                                </Envelope>
+                                """)));
+
+        WIREMOCK.stubFor(get(urlPathEqualTo("/frontend"))
+                .withQueryParam("active", equalTo("true"))
+                .willReturn(aResponse()
+                        .withStatus(200)
+                        .withHeader("Content-Type", "text/html; charset=UTF-8")
+                        .withBody("""
+                                <!doctype html>
+                                <html lang="en">
+                                <head>
+                                  <meta charset="UTF-8">
+                                  <title>Stub Frontend</title>
+                                </head>
+                                <body>
+                                  <h1 id="title">Stub Frontend</h1>
+                                  <p id="description">UI connected to WireMock stub backend</p>
+                                </body>
+                                </html>
+                                """)));
+    }
+}
--- a/src/test/java/ru/otus/stub/tests/HttpHelperTest.java
+++ b/src/test/java/ru/otus/stub/tests/HttpHelperTest.java
@@ -0,0 +1,45 @@
+package ru.otus.stub.tests;
+
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import ru.otus.stub.helper.HttpHelper;
+import ru.otus.stub.model.Course;
+import ru.otus.stub.model.User;
+import ru.otus.stub.model.UserScore;
+
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+
+class HttpHelperTest extends BaseWireMockStubTest {
+
+    private HttpHelper httpHelper;
+
+    @BeforeEach
+    void setUpHelper() {
+        httpHelper = new HttpHelper(WIREMOCK.baseUrl(), "");
+    }
+
+    @Test
+    void shouldGetAllUsers() {
+        final List<User> users = httpHelper.getAllUsers();
+        assertFalse(users.isEmpty());
+        assertEquals("Test user", users.getFirst().name());
+    }
+
+    @Test
+    void shouldGetAllCourses() {
+        final List<Course> courses = httpHelper.getAllCourses();
+        assertFalse(courses.isEmpty());
+        assertEquals("QA java", courses.getFirst().name());
+    }
+
+    @Test
+    void shouldGetUserScore() {
+        final UserScore userScore = httpHelper.getUserScore(1);
+        assertEquals("Test user", userScore.name());
+        assertEquals(78, userScore.score());
+    }
+}
--- a/src/test/java/ru/otus/stub/tests/MqHelperTest.java
+++ b/src/test/java/ru/otus/stub/tests/MqHelperTest.java
@@ -0,0 +1,23 @@
+package ru.otus.stub.tests;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import ru.otus.stub.helper.MqHelper;
+
+import java.time.Duration;
+
+class MqHelperTest {
+
+    @Test
+    void shouldSendAndReceiveMessage() {
+        final MqHelper mqHelper = new MqHelper();
+        final String queue = "scores";
+        final String payload = "{\"name\":\"Test user\",\"score\":78}";
+
+        mqHelper.send(queue, payload);
+        final String received = mqHelper.receive(queue, Duration.ofSeconds(1));
+
+        Assertions.assertEquals(payload, received);
+        Assertions.assertEquals(0, mqHelper.size(queue));
+    }
+}
--- a/src/test/java/ru/otus/stub/tests/SoapHelperTest.java
+++ b/src/test/java/ru/otus/stub/tests/SoapHelperTest.java
@@ -0,0 +1,24 @@
+package ru.otus.stub.tests;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import ru.otus.stub.helper.SoapHelper;
+import ru.otus.stub.model.UserScore;
+
+class SoapHelperTest extends BaseWireMockStubTest {
+
+    private SoapHelper soapHelper;
+
+    @BeforeEach
+    void setUpHelper() {
+        soapHelper = new SoapHelper(WIREMOCK.baseUrl(), "");
+    }
+
+    @Test
+    void shouldGetUserScoreBySoap() {
+        final UserScore userScore = soapHelper.getUserScore(1);
+        Assertions.assertEquals("Test user", userScore.name());
+        Assertions.assertEquals(78, userScore.score());
+    }
+}
--- a/src/test/java/ru/otus/stub/tests/SqlHelperTest.java
+++ b/src/test/java/ru/otus/stub/tests/SqlHelperTest.java
@@ -0,0 +1,31 @@
+package ru.otus.stub.tests;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import ru.otus.stub.helper.SqlHelper;
+
+import java.util.List;
+import java.util.Map;
+
+class SqlHelperTest {
+
+    @Test
+    void shouldReadDataFromDatabase() {
+        final String jdbcUrl = "jdbc:h2:mem:stubdb;DB_CLOSE_DELAY=-1";
+        final SqlHelper sqlHelper = new SqlHelper(jdbcUrl, "sa", "");
+
+        sqlHelper.executeUpdate("""
+                CREATE TABLE IF NOT EXISTS users (
+                    id BIGINT PRIMARY KEY,
+                    name VARCHAR(100),
+                    score INT
+                )
+                """);
+        sqlHelper.executeUpdate("INSERT INTO users(id, name, score) VALUES (1, 'Test user', 78)");
+
+        final List<Map<String, Object>> rows = sqlHelper.selectRows("SELECT name, score FROM users WHERE id = 1");
+        Assertions.assertEquals(1, rows.size());
+        Assertions.assertEquals("Test user", rows.getFirst().get("NAME"));
+        Assertions.assertEquals(78, ((Number) rows.getFirst().get("SCORE")).intValue());
+    }
+}
--- a/src/test/java/ru/otus/stub/tests/StubContractTest.java
+++ b/src/test/java/ru/otus/stub/tests/StubContractTest.java
@@ -0,0 +1,50 @@
+package ru.otus.stub.tests;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import ru.otus.stub.helper.HttpHelper;
+import ru.otus.stub.model.Course;
+import ru.otus.stub.model.User;
+import ru.otus.stub.model.UserScore;
+
+import java.util.List;
+
+class StubContractTest extends BaseWireMockStubTest {
+
+    private HttpHelper httpHelper;
+
+    @BeforeEach
+    void setUpHelper() {
+        httpHelper = new HttpHelper(WIREMOCK.baseUrl(), "");
+    }
+
+    @Test
+    void usersContractShouldContainRequiredFieldsAndExpectedValues() {
+        final List<User> users = httpHelper.getAllUsers();
+        Assertions.assertFalse(users.isEmpty(), "Users list must not be empty");
+
+        final User first = users.getFirst();
+        Assertions.assertEquals("Test user", first.name());
+        Assertions.assertEquals("QA", first.cource());
+        Assertions.assertEquals("test@test.test", first.email());
+        Assertions.assertEquals(23, first.age());
+    }
+
+    @Test
+    void coursesContractShouldContainExpectedItems() {
+        final List<Course> courses = httpHelper.getAllCourses();
+        Assertions.assertTrue(courses.size() >= 2, "Courses list must contain at least 2 items");
+
+        final Course first = courses.getFirst();
+        Assertions.assertEquals("QA java", first.name());
+        Assertions.assertEquals(15000, first.price());
+    }
+
+    @Test
+    void userScoreContractShouldContainExpectedValues() {
+        final UserScore score = httpHelper.getUserScore(1);
+        Assertions.assertEquals("Test user", score.name());
+        Assertions.assertEquals(78, score.score());
+    }
+}
--- a/src/test/java/ru/otus/stub/tests/StubSchemaTest.java
+++ b/src/test/java/ru/otus/stub/tests/StubSchemaTest.java
@@ -0,0 +1,42 @@
+package ru.otus.stub.tests;
+
+import io.restassured.RestAssured;
+import org.junit.jupiter.api.Test;
+
+import static io.restassured.module.jsv.JsonSchemaValidator.matchesJsonSchemaInClasspath;
+
+class StubSchemaTest extends BaseWireMockStubTest {
+
+    @Test
+    void usersResponseShouldMatchSchema() {
+        RestAssured.given()
+                .baseUri(WIREMOCK.baseUrl())
+                .when()
+                .get("/user/get/all")
+                .then()
+                .statusCode(200)
+                .body(matchesJsonSchemaInClasspath("schemas/users-schema.json"));
+    }
+
+    @Test
+    void coursesResponseShouldMatchSchema() {
+        RestAssured.given()
+                .baseUri(WIREMOCK.baseUrl())
+                .when()
+                .get("/cource/get/all")
+                .then()
+                .statusCode(200)
+                .body(matchesJsonSchemaInClasspath("schemas/courses-schema.json"));
+    }
+
+    @Test
+    void scoreResponseShouldMatchSchema() {
+        RestAssured.given()
+                .baseUri(WIREMOCK.baseUrl())
+                .when()
+                .get("/user/get/{id}", 1)
+                .then()
+                .statusCode(200)
+                .body(matchesJsonSchemaInClasspath("schemas/score-schema.json"));
+    }
+}
--- a/src/test/resources/features/catalog.feature
+++ b/src/test/resources/features/catalog.feature
@@ -0,0 +1,29 @@
+# language: ru
+
+Функция: Каталог курсов OTUS
+  Как пользователь
+  Я хочу работать с каталогом курсов через BDD
+  Чтобы проверять поиск, фильтрацию по датам и выбор по цене
+
+  Сценарий: Выбор браузера и поиск курса по названию со случайным выбором
+    Дано Открыт браузер Chrome
+    Когда Открыт каталог курсов
+    И Найден курс "Python" и выбран случайный из найденных
+    Тогда Заголовок страницы курса содержит "Python"
+
+  Сценарий: Поиск курсов, стартующих в указанную дату или позже
+    Дано Открыт браузер Chrome
+    Когда Открыт каталог курсов
+    И Найдены курсы со стартом "01.01.2025" или позже
+    Тогда В консоль выведены найденные курсы и даты старта
+
+  Сценарий: Поиск самого дорогого и самого дешевого подготовительного курса
+    Дано Открыт браузер Chrome
+    Когда Открыт раздел Обучение и Подготовительные курсы
+    И Выбраны самый дорогой и самый дешевый курсы с помощью filter
+    Тогда В консоль выведена информация о самом дорогом и самом дешевом курсе
+
+  Сценарий: Поиск самого дорогого и самого дешевого курса в каталоге по полной стоимости со скидкой
+    Дано Открыт браузер Chrome
+    Когда В каталоге курсов выбраны самый дорогой и самый дешевый курсы по полной стоимости со скидкой с помощью filter
+    Тогда В консоль выведена информация о самом дорогом и самом дешевом курсе в каталоге
--- a/src/test/resources/features/stub_frontend.feature
+++ b/src/test/resources/features/stub_frontend.feature
@@ -0,0 +1,10 @@
+# language: ru
+
+Функция: Stub Frontend
+
+  Сценарий: Проверка подключения frontend к stub-серверу
+    Дано Открыт браузер для frontend chrome
+    Когда Открыта страница stub frontend
+    Тогда Заголовок страницы равен "Stub Frontend"
+    И На странице есть заголовок "Stub Frontend"
+    И На странице есть описание "UI connected to WireMock stub backend"
--- a/src/test/resources/logback-test.xml
+++ b/src/test/resources/logback-test.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss} %-5level %logger{36} - %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <logger name="io.github.bonigarcia.wdm" level="WARN"/>
+    <logger name="org.openqa.selenium" level="WARN"/>
+
+    <root level="WARN">
+        <appender-ref ref="STDOUT"/>
+    </root>
+</configuration>
--- a/src/test/resources/logging.properties
+++ b/src/test/resources/logging.properties
@@ -0,0 +1,8 @@
+handlers= java.util.logging.ConsoleHandler
+.level= WARNING
+
+java.util.logging.ConsoleHandler.level = SEVERE
+java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter
+
+org.openqa.selenium.devtools.level = SEVERE
+org.openqa.selenium.devtools.CdpVersionFinder.level = SEVERE
--- a/src/test/resources/schemas/courses-schema.json
+++ b/src/test/resources/schemas/courses-schema.json
@@ -0,0 +1,14 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "type": "array",
+  "minItems": 1,
+  "items": {
+    "type": "object",
+    "required": ["name", "price"],
+    "additionalProperties": false,
+    "properties": {
+      "name": { "type": "string" },
+      "price": { "type": "integer", "minimum": 0 }
+    }
+  }
+}
--- a/src/test/resources/schemas/score-schema.json
+++ b/src/test/resources/schemas/score-schema.json
@@ -0,0 +1,10 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "type": "object",
+  "required": ["name", "score"],
+  "additionalProperties": false,
+  "properties": {
+    "name": { "type": "string" },
+    "score": { "type": "integer", "minimum": 0, "maximum": 100 }
+  }
+}
--- a/src/test/resources/schemas/users-schema.json
+++ b/src/test/resources/schemas/users-schema.json
@@ -0,0 +1,16 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "type": "array",
+  "minItems": 1,
+  "items": {
+    "type": "object",
+    "required": ["name", "cource", "email", "age"],
+    "additionalProperties": false,
+    "properties": {
+      "name": { "type": "string" },
+      "cource": { "type": "string" },
+      "email": { "type": "string" },
+      "age": { "type": "integer", "minimum": 0 }
+    }
+  }
+}
Author	SHA1	Message	Date
spawn	e145b1ad49	Update README branch naming to homework_5	2026-03-09 01:45:58 +03:00
spawn	507e14bc2e	Implement HW5 stubs, API helpers, optional SQL/MQ helpers, and test coverage	2026-03-09 01:40:48 +03:00