Merge branch 'master' of https://github.com/JonCook/tutorials

testing-modules/test-containers/README.md

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+### Relevant Articles:
+- [Docker Test Containers in Java Tests](http://www.baeldung.com/docker-test-containers)

testing-modules/test-containers/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <!-- NOT NEEDED - JSP <groupId>com.baeldung</groupId> -->
+    <artifactId>test-containers</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <name>test-containers</name>
+    <description>Intro to Java Test Containers</description>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+        <relativePath>../../</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.platform</groupId>
+            <artifactId>junit-platform-runner</artifactId>
+            <version>${junit.platform.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.platform</groupId>
+            <artifactId>junit-platform-commons</artifactId>
+            <version>${junit.platform.version}</version>
+            <scope>test</scope>
+        </dependency>        
+        <dependency>
+            <groupId>org.junit.vintage</groupId>
+            <artifactId>junit-vintage-engine</artifactId>
+            <version>${junit.vintage.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <version>${log4j2.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>testcontainers</artifactId>
+            <version>${testcontainers.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>postgresql </artifactId>
+            <version>${testcontainers.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>selenium </artifactId>
+            <version>${testcontainers.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+            <version>${postgresql.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.seleniumhq.selenium</groupId>
+            <artifactId>selenium-remote-driver</artifactId>
+            <version>${selenium-remote-driver.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.seleniumhq.selenium</groupId>
+            <artifactId>selenium-chrome-driver</artifactId>
+            <version>${selenium-remote-driver.version}</version>
+        </dependency>        
+    </dependencies>
+
+    <build>
+        <resources>
+            <resource>
+                <directory>src/test/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+        <plugins>
+            <plugin>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>${maven-surefire-plugin.version}</version>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.junit.platform</groupId>
+                        <artifactId>junit-platform-surefire-provider</artifactId>
+                        <version>${junit-platform-surefire-provider.version}</version>
+                    </dependency>
+                </dependencies>
+            </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>exec-maven-plugin</artifactId>
+                <version>${exec-maven-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>java</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <mainClass>com.baeldung.TestLauncher</mainClass>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <junit.platform.version>1.5.0</junit.platform.version>
+        <junit.vintage.version>5.5.0</junit.vintage.version>
+        <log4j2.version>2.12.0</log4j2.version>
+        <testcontainers.version>1.11.4</testcontainers.version>
+        <postgresql.version>42.2.6</postgresql.version>
+        <selenium-remote-driver.version>3.141.59</selenium-remote-driver.version>
+        <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
+        <junit-platform-surefire-provider.version>1.3.2</junit-platform-surefire-provider.version>
+    </properties>
+
+</project>

testing-modules/test-containers/src/test/java/com/baeldung/testconainers/DockerComposeContainerLiveTest.java

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+package com.baeldung.testconainers;
+
+import static org.junit.Assert.assertEquals;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.testcontainers.containers.DockerComposeContainer;
+
+public class DockerComposeContainerLiveTest {
+    @ClassRule
+    public static DockerComposeContainer compose = 
+      new DockerComposeContainer(
+        new File("src/test/resources/test-compose.yml"))
+          .withExposedService("simpleWebServer_1", 80);
+
+    @Test
+    public void givenSimpleWebServerContainer_whenGetReuqest_thenReturnsResponse()
+      throws Exception {
+        String address = "http://" + compose.getServiceHost("simpleWebServer_1", 80)
+          + ":" + compose.getServicePort("simpleWebServer_1", 80);
+        String response = simpleGetRequest(address);
+        
+        assertEquals(response, "Hello World!");
+    }
+
+    private String simpleGetRequest(String address) throws Exception {
+        URL url = new URL(address);
+        HttpURLConnection con = (HttpURLConnection) url.openConnection();
+        con.setRequestMethod("GET");
+
+        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
+        String inputLine;
+        StringBuffer content = new StringBuffer();
+        while ((inputLine = in.readLine()) != null) {
+            content.append(inputLine);
+        }
+        in.close();
+
+        return content.toString();
+    }
+}

testing-modules/test-containers/src/test/java/com/baeldung/testconainers/GenericContainerLiveTest.java

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+package com.baeldung.testconainers;
+
+import static org.junit.Assert.assertEquals;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.platform.commons.annotation.Testable;
+import org.testcontainers.containers.GenericContainer;
+
+@Testable
+public class GenericContainerLiveTest {
+    @ClassRule
+    public static GenericContainer simpleWebServer =
+      new GenericContainer("alpine:3.2")
+        .withExposedPorts(80)
+        .withCommand("/bin/sh", "-c", "while true; do echo "
+          + "\"HTTP/1.1 200 OK\n\nHello World!\" | nc -l -p 80; done");
+
+    @Test
+    public void givenSimpleWebServerContainer_whenGetReuqest_thenReturnsResponse()
+      throws Exception {
+        String address = "http://" 
+          + simpleWebServer.getContainerIpAddress() 
+          + ":" + simpleWebServer.getMappedPort(80);
+        String response = simpleGetRequest(address);
+        
+        assertEquals(response, "Hello World!");
+    }
+
+    private String simpleGetRequest(String address) throws Exception {
+        URL url = new URL(address);
+        HttpURLConnection con = (HttpURLConnection) url.openConnection();
+        con.setRequestMethod("GET");
+
+        BufferedReader in = new BufferedReader(
+          new InputStreamReader(con.getInputStream()));
+        String inputLine;
+        StringBuffer content = new StringBuffer();
+        while ((inputLine = in.readLine()) != null) {
+            content.append(inputLine);
+        }
+        in.close();
+
+        return content.toString();
+    }
+}

testing-modules/test-containers/src/test/java/com/baeldung/testconainers/PostgreSqlContainerLiveTest.java

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+package com.baeldung.testconainers;
+
+import static org.junit.Assert.assertEquals;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.platform.commons.annotation.Testable;
+import org.testcontainers.containers.PostgreSQLContainer;
+
+@Testable
+public class PostgreSqlContainerLiveTest {
+    @Rule
+    public PostgreSQLContainer postgresContainer = new PostgreSQLContainer();
+
+    @Test
+    public void whenSelectQueryExecuted_thenResulstsReturned() throws Exception {
+        ResultSet resultSet = performQuery(postgresContainer, "SELECT 1");
+        resultSet.next();
+        int result = resultSet.getInt(1);
+        assertEquals(1, result);
+    }
+
+    private ResultSet performQuery(PostgreSQLContainer postgres, String query) throws SQLException {
+        String jdbcUrl = postgres.getJdbcUrl();
+        String username = postgres.getUsername();
+        String password = postgres.getPassword();
+        Connection conn = DriverManager.getConnection(jdbcUrl, username, password);
+        return conn.createStatement()
+            .executeQuery(query);
+    }
+}

testing-modules/test-containers/src/test/java/com/baeldung/testconainers/WebDriverContainerLiveTest.java

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+package com.baeldung.testconainers;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.openqa.selenium.By;
+import org.openqa.selenium.chrome.ChromeOptions;
+import org.openqa.selenium.remote.RemoteWebDriver;
+import org.testcontainers.containers.BrowserWebDriverContainer;
+
+public class WebDriverContainerLiveTest {
+    @Rule
+    public BrowserWebDriverContainer chrome
+      = new BrowserWebDriverContainer()
+        .withCapabilities(new ChromeOptions());
+
+    @Test
+    public void whenNavigatedToPage_thenHeadingIsInThePage() {
+        RemoteWebDriver driver = chrome.getWebDriver();
+        driver.get("http://example.com");
+        String heading = driver.findElement(By.xpath("/html/body/div/h1"))
+            .getText();
+        assertEquals("Example Domain", heading);
+    }
+    
+}

testing-modules/test-containers/src/test/resources/test-compose.yml

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+simpleWebServer:
+  image: alpine:3.2
+  command: ["/bin/sh", "-c", "while true; do echo 'HTTP/1.1 200 OK\n\nHello World!' | nc -l -p 80; done"]