PostgreSQL: Demonstrate integration-tests module with Testcontainers

integration-tests/pom.xml

@@ -0,0 +1,81 @@
+<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>
+
+	<parent>
+		<groupId>my</groupId>
+		<artifactId>bookshop-parent</artifactId>
+		<version>${revision}</version>
+	</parent>
+
+	<artifactId>bookshop-integration-tests</artifactId>
+
+	<name>bookshop-integration-tests</name>
+
+	<dependencies>
+		<dependency>
+			<groupId>my</groupId>
+			<artifactId>bookshop</artifactId>
+			<version>${revision}</version>
+			<exclusions>
+				<exclusion>
+					<groupId>ch.qos.logback</groupId>
+					<artifactId>logback-classic</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.security</groupId>
+			<artifactId>spring-security-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.testcontainers</groupId>
+			<artifactId>junit-jupiter</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.testcontainers</groupId>
+			<artifactId>postgresql</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<version>3.2.2</version>
+				<configuration>
+					<failIfNoTests>false</failIfNoTests>
+				</configuration>
+			</plugin>
+
+			<plugin>
+				<!-- Tests ending with *IT.java will be executed here -->
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-failsafe-plugin</artifactId>
+				<version>3.2.2</version>
+				<executions>
+					<execution>
+						<goals>
+							<goal>integration-test</goal>
+							<goal>verify</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+
+		</plugins>
+	</build>
+</project>

integration-tests/src/test/java/my/bookshop/it/SimpleIntegrationIT.java

@@ -0,0 +1,54 @@
+package my.bookshop.it;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
+import org.springframework.security.test.context.support.WithMockUser;
+import org.springframework.test.context.DynamicPropertyRegistry;
+import org.springframework.test.context.DynamicPropertySource;
+import org.springframework.test.web.servlet.MockMvc;
+import org.testcontainers.containers.PostgreSQLContainer;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+
+import my.bookshop.Application;
+
+@SpringBootTest(classes = Application.class)
+@AutoConfigureMockMvc
+@Testcontainers
+class SimpleIntegrationIT {
+
+	@Autowired
+	MockMvc client;
+
+	@Container
+	private static PostgreSQLContainer<?> pgContainer = new PostgreSQLContainer<>("postgres:14");
+
+	@DynamicPropertySource
+	static void registerPosgreSQLProperties(DynamicPropertyRegistry registry) {
+		registry.add("spring.datasource.url", pgContainer::getJdbcUrl);
+		registry.add("spring.datasource.username", pgContainer::getUsername);
+		registry.add("spring.datasource.password", pgContainer::getPassword);
+	}
+
+	@Test
+	void booksAreReadable() throws Exception {
+		client.perform(get("/api/browse/Books").accept(MediaType.APPLICATION_JSON)).andExpect(status().isOk());
+	}
+
+	@Test
+	@WithMockUser("admin")
+	void booksAreManageable() throws Exception {
+		client.perform(get("/api/admin/Books").accept(MediaType.APPLICATION_JSON)).andExpect(status().isOk());
+	}
+
+	@Test
+	void booksAreProtected() throws Exception {
+		client.perform(get("/api/admin/Books").accept(MediaType.APPLICATION_JSON)).andExpect(status().isUnauthorized());
+	}
+}

pom.xml

@@ -25,6 +25,7 @@
 
 	<modules>
 		<module>srv</module>
+		<module>integration-tests</module>
 	</modules>
 
 	<dependencyManagement>