Feature/bael 5040 cassandra testcontainers (#11124)

* BAEL-5040: initial commit - spring data cassandra using boot-2

* BAEL-5040: update test example

* BAEL-5040: add brackets

* BAEL-5040: use singleton container

* BAEL-5040: switch from singleton to nested classes approach

* BAEL-5040: package private methods in junit5

* BAEL-5040: Move SpringBootTest annotation to parent class

persistence-modules/spring-data-cassandra-2/src/test/java/org/baeldung/springcassandra/CassandraNestedIntegrationTest.java

@@ -0,0 +1,101 @@
+package org.baeldung.springcassandra;
+
+import com.datastax.driver.core.Cluster;
+import com.datastax.driver.core.Session;
+import com.datastax.driver.core.utils.UUIDs;
+import org.baeldung.springcassandra.model.Car;
+import org.baeldung.springcassandra.repository.CarRepository;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.testcontainers.containers.CassandraContainer;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+
+import java.util.List;
+import java.util.UUID;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+
+@Testcontainers
+@SpringBootTest
+class CassandraNestedIntegrationTest {
+
+    private static final String KEYSPACE_NAME = "test";
+
+    @Container
+    private static final CassandraContainer cassandra = (CassandraContainer) new CassandraContainer("cassandra:3.11.2")
+      .withExposedPorts(9042);
+
+    @BeforeAll
+    static void setupCassandraConnectionProperties() {
+        System.setProperty("spring.data.cassandra.keyspace-name", KEYSPACE_NAME);
+        System.setProperty("spring.data.cassandra.contact-points", cassandra.getContainerIpAddress());
+        System.setProperty("spring.data.cassandra.port", String.valueOf(cassandra.getMappedPort(9042)));
+
+        createKeyspace(cassandra.getCluster());
+    }
+
+    static void createKeyspace(Cluster cluster) {
+        try(Session session = cluster.connect()) {
+            session.execute("CREATE KEYSPACE IF NOT EXISTS " + KEYSPACE_NAME + " WITH replication = \n" +
+              "{'class':'SimpleStrategy','replication_factor':'1'};");
+        }
+    }
+
+    @Nested
+    class ApplicationContextIntegrationTest {
+
+        @Test
+        void givenCassandraContainer_whenSpringContextIsBootstrapped_thenContainerIsRunningWithNoExceptions() {
+            assertThat(cassandra.isRunning()).isTrue();
+        }
+
+    }
+
+    @Nested
+    class CarRepositoryIntegrationTest {
+
+        @Autowired
+        private CarRepository carRepository;
+
+        @Test
+        void givenValidCarRecord_whenSavingIt_thenRecordIsSaved() {
+            UUID carId = UUIDs.timeBased();
+            Car newCar = new Car(carId, "Nissan", "Qashqai", 2018);
+
+            carRepository.save(newCar);
+
+            List<Car> savedCars = carRepository.findAllById(List.of(carId));
+            assertThat(savedCars.get(0)).isEqualTo(newCar);
+        }
+
+        @Test
+        void givenExistingCarRecord_whenUpdatingIt_thenRecordIsUpdated() {
+            UUID carId = UUIDs.timeBased();
+            Car existingCar = carRepository.save(new Car(carId, "Nissan", "Qashqai", 2018));
+
+            existingCar.setModel("X-Trail");
+            carRepository.save(existingCar);
+
+            List<Car> savedCars = carRepository.findAllById(List.of(carId));
+            assertThat(savedCars.get(0).getModel()).isEqualTo("X-Trail");
+        }
+
+        @Test
+        void givenExistingCarRecord_whenDeletingIt_thenRecordIsDeleted() {
+            UUID carId = UUIDs.timeBased();
+            Car existingCar = carRepository.save(new Car(carId, "Nissan", "Qashqai", 2018));
+
+            carRepository.delete(existingCar);
+
+            List<Car> savedCars = carRepository.findAllById(List.of(carId));
+            assertThat(savedCars.isEmpty()).isTrue();
+        }
+
+    }
+
+}

persistence-modules/spring-data-cassandra-2/src/test/java/org/baeldung/springcassandra/CassandraSimpleIntegrationTest.java

@@ -0,0 +1,53 @@
+package org.baeldung.springcassandra;
+
+import com.datastax.driver.core.Cluster;
+import com.datastax.driver.core.Session;
+import com.datastax.driver.core.utils.UUIDs;
+import org.baeldung.springcassandra.model.Car;
+import org.baeldung.springcassandra.repository.CarRepository;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.testcontainers.containers.CassandraContainer;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+
+import java.util.List;
+import java.util.UUID;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@Testcontainers
+@SpringBootTest
+class CassandraSimpleIntegrationTest {
+
+    private static final String KEYSPACE_NAME = "test";
+
+    @Container
+    private static final CassandraContainer cassandra = (CassandraContainer) new CassandraContainer("cassandra:3.11.2")
+      .withExposedPorts(9042);
+
+    @BeforeAll
+    static void setupCassandraConnectionProperties() {
+        System.setProperty("spring.data.cassandra.keyspace-name", KEYSPACE_NAME);
+        System.setProperty("spring.data.cassandra.contact-points", cassandra.getContainerIpAddress());
+        System.setProperty("spring.data.cassandra.port", String.valueOf(cassandra.getMappedPort(9042)));
+
+        createKeyspace(cassandra.getCluster());
+    }
+
+    static void createKeyspace(Cluster cluster) {
+        try(Session session = cluster.connect()) {
+            session.execute("CREATE KEYSPACE IF NOT EXISTS " + KEYSPACE_NAME + " WITH replication = \n" +
+              "{'class':'SimpleStrategy','replication_factor':'1'};");
+        }
+    }
+
+    @Test
+    void givenCassandraContainer_whenSpringContextIsBootstrapped_thenContainerIsRunningWithNoExceptions() {
+        assertThat(cassandra.isRunning()).isTrue();
+    }
+
+}

persistence-modules/spring-data-cassandra-2/src/test/resources/application.properties

@@ -0,0 +1,5 @@
+spring.data.cassandra.keyspace-name=${CASSANDRA_KEYSPACE_NAME}
+spring.data.cassandra.contact-points=${CASSANDRA_CONTACT_POINTS}
+spring.data.cassandra.port=${CASSANDRA_PORT}
+spring.data.cassandra.local-datacenter=datacenter1
+spring.data.cassandra.schema-action=create_if_not_exists