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"exposing host port" example. Closes testcontainers#1136 (testcontainers#1152)
* added spring boot webapp test with exposed host port for BrowserWebDriverContainer * fixes after review * fixes after review update to random port * fixes after review update to static resource * fixes after review update initializer * fixes after review remove unused dependency
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‎examples/selenium-container/pom.xml

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<artifactId>selenium-container</artifactId>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-dependencies</artifactId>
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<version>2.1.2.RELEASE</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.seleniumhq.selenium</groupId>
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<artifactId>selenium-remote-driver</artifactId>
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<version>3.141.59</version>
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</dependency>
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<dependency>
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<groupId>org.seleniumhq.selenium</groupId>
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<artifactId>selenium-firefox-driver</artifactId>
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<version>3.141.59</version>
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</dependency>
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<dependency>
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<groupId>org.seleniumhq.selenium</groupId>
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<artifactId>selenium-chrome-driver</artifactId>
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<version>3.141.59</version>
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</dependency>
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<dependency>
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<groupId>${testcontainers.group}</groupId>
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<artifactId>selenium</artifactId>
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<version>${testcontainers.version}</version>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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<version>1.7.25</version>
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<scope>provided</scope>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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<version>1.2.3</version>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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<version>2.1.2.RELEASE</version>
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</plugin>
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</plugins>
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</build>
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</project>

‎examples/selenium-container/src/main/java/com/example/DemoApplication.java

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package com.example;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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@SpringBootApplication
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public class DemoApplication {
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public static void main(String[] args) {
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SpringApplication.run(DemoApplication.class, args);
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}
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}

‎examples/selenium-container/src/main/resources/static/foo.html

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<!DOCTYPE HTML>
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<html>
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<head>
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<title>Getting Started: Serving Web Content</title>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
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</head>
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<body>
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<h>Hello World</h>
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</body>
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</html>

‎examples/selenium-container/src/test/java/SeleniumContainerTest.java

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@@ -1,8 +1,19 @@
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import com.example.DemoApplication;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.openqa.selenium.WebElement;
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import org.openqa.selenium.remote.RemoteWebDriver;
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import org.openqa.selenium.chrome.ChromeOptions;
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import org.openqa.selenium.remote.RemoteWebDriver;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.boot.web.context.WebServerInitializedEvent;
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import org.springframework.boot.web.server.LocalServerPort;
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import org.springframework.context.ApplicationContextInitializer;
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import org.springframework.context.ApplicationListener;
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import org.springframework.context.ConfigurableApplicationContext;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
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import org.testcontainers.Testcontainers;
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import org.testcontainers.containers.BrowserWebDriverContainer;
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import java.io.File;
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/**
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* Simple example of plain Selenium usage.
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*/
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@RunWith(SpringJUnit4ClassRunner.class)
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@SpringBootTest(classes = DemoApplication.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
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@ContextConfiguration(initializers = SeleniumContainerTest.Initializer.class)
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public class SeleniumContainerTest {
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@LocalServerPort
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private int port;
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@Rule
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public BrowserWebDriverContainer chrome = new BrowserWebDriverContainer()
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.withCapabilities(new ChromeOptions())
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public void simplePlainSeleniumTest() {
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RemoteWebDriver driver = chrome.getWebDriver();
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driver.get("https://wikipedia.org");
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List<WebElement> searchInput = driver.findElementsByName("search");
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driver.get("http://host.testcontainers.internal:" + port + "/foo.html");
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List<WebElement> hElement = driver.findElementsByTagName("h");
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assertTrue("The search input box is found", searchInput != null && searchInput.size() > 0);
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assertTrue("The h element is found", hElement != null && hElement.size() > 0);
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}
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public static class Initializer implements ApplicationContextInitializer<ConfigurableApplicationContext> {
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@Override
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public void initialize(ConfigurableApplicationContext applicationContext) {
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applicationContext.addApplicationListener((ApplicationListener<WebServerInitializedEvent>) event -> {
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Testcontainers.exposeHostPorts(event.getWebServer().getPort());
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});
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}
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}
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}

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