test: add integrations tests

package.json

@@ -47,6 +47,7 @@
     "eslint": "9",
     "eslint-plugin-react-hooks": "^5.1.0",
     "eslint-plugin-react-refresh": "^0.4.18",
+    "flatted": "^3.4.2",
     "globals": "^15.14.0",
     "prettier": "3.6.2",
     "tailwindcss": "4",

server/build.gradle

@@ -79,7 +79,12 @@ dependencies {
     // Test Dependencies
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testImplementation 'org.springframework.security:spring-security-test'
+    testImplementation 'org.springframework.boot:spring-boot-testcontainers'
+    testImplementation 'org.testcontainers:junit-jupiter'
+    testImplementation 'org.testcontainers:postgresql'
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+    testCompileOnly 'org.projectlombok:lombok'
+    testAnnotationProcessor 'org.projectlombok:lombok'
 }
 
 tasks.named('test') {

server/src/test/java/de/tum/cit/memo/AbstractIntegrationTest.java

@@ -0,0 +1,16 @@
+package de.tum.cit.memo;
+
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.DynamicPropertyRegistry;
+import org.springframework.test.context.DynamicPropertySource;
+
+@SpringBootTest
+@ActiveProfiles("test")
+public abstract class AbstractIntegrationTest {
+
+    @DynamicPropertySource
+    static void configureProperties(DynamicPropertyRegistry registry) {
+        TestPostgresContainer.registerProperties(registry);
+    }
+}

server/src/test/java/de/tum/cit/memo/TestPostgresContainer.java

@@ -0,0 +1,27 @@
+package de.tum.cit.memo;
+
+import org.springframework.test.context.DynamicPropertyRegistry;
+import org.testcontainers.containers.PostgreSQLContainer;
+
+@SuppressWarnings("resource")
+public final class TestPostgresContainer {
+
+    private static final PostgreSQLContainer<?> POSTGRES =
+        new PostgreSQLContainer<>("postgres:16-alpine")
+            .withDatabaseName("memo_test")
+            .withUsername("test")
+            .withPassword("test");
+
+    static {
+        POSTGRES.start();
+    }
+
+    private TestPostgresContainer() {
+    }
+
+    public static void registerProperties(DynamicPropertyRegistry registry) {
+        registry.add("spring.datasource.url", POSTGRES::getJdbcUrl);
+        registry.add("spring.datasource.username", POSTGRES::getUsername);
+        registry.add("spring.datasource.password", POSTGRES::getPassword);
+    }
+}

server/src/test/java/de/tum/cit/memo/repository/AbstractRepositoryTest.java

@@ -0,0 +1,24 @@
+package de.tum.cit.memo.repository;
+
+import de.tum.cit.memo.TestPostgresContainer;
+import jakarta.persistence.EntityManager;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.DynamicPropertyRegistry;
+import org.springframework.test.context.DynamicPropertySource;
+
+@DataJpaTest
+@ActiveProfiles("test")
+@AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
+public abstract class AbstractRepositoryTest {
+
+    @Autowired
+    protected EntityManager entityManager;
+
+    @DynamicPropertySource
+    static void configureProperties(DynamicPropertyRegistry registry) {
+        TestPostgresContainer.registerProperties(registry);
+    }
+}