add test-containers module
This commit is contained in:
Bahtiyar Kaba
José Carlos Valero Sánchez
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### Relevant Articles:
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- [Docker Test Containers in Java Tests](TODO link to be added.)
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<!-- NOT NEEDED - JSP <groupId>com.baeldung</groupId> -->
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<artifactId>test-containers</artifactId>
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<version>1.0-SNAPSHOT</version>
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<name>test-containers</name>
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<description>Intro to Java Test Containers</description>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-modules</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<relativePath>../../</relativePath>
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</parent>
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<build>
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<resources>
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<resource>
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<directory>src/test/resources</directory>
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<filtering>true</filtering>
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</resource>
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</resources>
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<plugins>
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<plugin>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>${maven-surefire-plugin.version}</version>
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<dependencies>
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<dependency>
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<groupId>org.junit.platform</groupId>
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<artifactId>junit-platform-surefire-provider</artifactId>
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<version>${junit.platform.version}</version>
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</dependency>
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</dependencies>
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</plugin>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<version>1.6.0</version>
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<executions>
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<execution>
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<goals>
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<goal>java</goal>
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</goals>
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</execution>
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</executions>
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<configuration>
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<mainClass>com.baeldung.TestLauncher</mainClass>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<dependencies>
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<dependency>
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<groupId>org.junit.platform</groupId>
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<artifactId>junit-platform-runner</artifactId>
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<version>${junit.platform.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.vintage</groupId>
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<artifactId>junit-vintage-engine</artifactId>
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<version>${junit.vintage.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-core</artifactId>
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<version>${log4j2.version}</version>
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</dependency>
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<dependency>
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<groupId>org.testcontainers</groupId>
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<artifactId>testcontainers</artifactId>
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<version>1.7.2</version>
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</dependency>
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<dependency>
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<groupId>org.testcontainers</groupId>
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<artifactId>postgresql </artifactId>
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<version>1.7.2</version>
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</dependency>
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<dependency>
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<groupId>org.postgresql</groupId>
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<artifactId>postgresql</artifactId>
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<version>42.2.2</version>
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</dependency>
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</dependencies>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<java.version>1.8</java.version>
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<junit.jupiter.version>5.1.0</junit.jupiter.version>
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<junit.platform.version>1.0.1</junit.platform.version>
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<junit.vintage.version>4.12.1</junit.vintage.version>
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<log4j2.version>2.8.2</log4j2.version>
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<h2.version>1.4.196</h2.version>
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<mockito.version>2.11.0</mockito.version>
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<maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
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<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
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<spring.version>5.0.1.RELEASE</spring.version>
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</properties>
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</project>
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package com.baeldung.testconainers;
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import static org.junit.Assert.assertEquals;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import org.junit.ClassRule;
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import org.junit.Test;
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import org.junit.platform.commons.annotation.Testable;
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import org.testcontainers.containers.GenericContainer;
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@Testable
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public class GenericContainerTests {
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@ClassRule
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public static GenericContainer simpleWebServer = new GenericContainer("alpine:3.2")
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.withExposedPorts(80)
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.withCommand("/bin/sh", "-c", "while true; do echo "
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+ "\"HTTP/1.1 200 OK\n\nHello World!\" | nc -l -p 80; done");
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@Test
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public void givenSimpleWebServerContainer_whenGetReuqest_thenReturnsResponse() throws Exception {
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String address = "http://" + simpleWebServer.getContainerIpAddress() + ":" + simpleWebServer.getMappedPort(80);
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String response = simpleGetRequest(address);
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assertEquals(response, "Hello World!");
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}
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private String simpleGetRequest(String address) throws Exception {
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URL url = new URL(address);
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HttpURLConnection con = (HttpURLConnection) url.openConnection();
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con.setRequestMethod("GET");
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BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
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String inputLine;
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StringBuffer content = new StringBuffer();
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while ((inputLine = in.readLine()) != null) {
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content.append(inputLine);
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}
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in.close();
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return content.toString();
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}
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}
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@ -0,0 +1,36 @@
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package com.baeldung.testconainers;
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import static org.junit.Assert.assertEquals;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.platform.commons.annotation.Testable;
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import org.testcontainers.containers.PostgreSQLContainer;
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@Testable
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public class PostgreSqlContainerTests {
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@Rule
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public PostgreSQLContainer postgresContainer = new PostgreSQLContainer();
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@Test
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public void whenSelectQueryExecuted_thenResulstsReturned() throws Exception {
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ResultSet resultSet = performQuery(postgresContainer, "SELECT 1");
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resultSet.next();
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int result = resultSet.getInt(1);
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assertEquals(1, result);
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}
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private ResultSet performQuery(PostgreSQLContainer postgres, String query) throws SQLException {
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String jdbcUrl = postgres.getJdbcUrl();
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String username = postgres.getUsername();
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String password = postgres.getPassword();
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Connection conn = DriverManager.getConnection(jdbcUrl, username, password);
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return conn.createStatement()
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.executeQuery(query);
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}
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}
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