--- /dev/null
+package de.juplo.kafka.chat.backend;
+
+import lombok.extern.slf4j.Slf4j;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.web.server.LocalServerPort;
+import org.springframework.http.MediaType;
+import org.springframework.test.context.DynamicPropertyRegistry;
+import org.springframework.test.context.DynamicPropertySource;
+import org.springframework.test.web.reactive.server.WebTestClient;
+import org.testcontainers.containers.BindMode;
+import org.testcontainers.containers.GenericContainer;
+import org.testcontainers.containers.output.Slf4jLogConsumer;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+import org.testcontainers.shaded.org.awaitility.Awaitility;
+
+import java.time.Duration;
+
+
+@SpringBootTest(
+ webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
+ properties = {
+ "chat.backend.storage=mongodb",
+ "spring.data.mongodb.host=localhost",
+ "spring.data.mongodb.database=test" })
+@Testcontainers
+@Slf4j
+class InMemoryWithMongoDbConfigurationIT
+{
+ @LocalServerPort
+ private int port;
+ @Autowired
+ private WebTestClient webTestClient;
+
+ @Test
+ @DisplayName("The app starts, the data is restored and accessible")
+ void test()
+ {
+ Awaitility
+ .await()
+ .atMost(Duration.ofSeconds(15))
+ .untilAsserted(() ->
+ {
+ webTestClient
+ .get()
+ .uri("http://localhost:{port}/actuator/health", port)
+ .exchange()
+ .expectStatus().isOk()
+ .expectBody().jsonPath("$.status").isEqualTo("UP");
+ webTestClient
+ .get()
+ .uri("http://localhost:{port}/4ace69b7-a79f-481b-ad0d-d756d60b66ec", port)
+ .accept(MediaType.APPLICATION_JSON)
+ .exchange()
+ .expectStatus().isOk()
+ .expectBody().jsonPath("$.name").isEqualTo("FOO");
+ webTestClient
+ .get()
+ .uri("http://localhost:{port}/4ace69b7-a79f-481b-ad0d-d756d60b66ec/ute/1", port)
+ .accept(MediaType.APPLICATION_JSON)
+ .exchange()
+ .expectStatus().isOk()
+ .expectBody().jsonPath("$.text").isEqualTo("Ich bin Ute...");
+ webTestClient
+ .get()
+ .uri("http://localhost:{port}/4ace69b7-a79f-481b-ad0d-d756d60b66ec/peter/1", port)
+ .accept(MediaType.APPLICATION_JSON)
+ .exchange()
+ .expectStatus().isOk()
+ .expectBody().jsonPath("$.text").isEqualTo("Hallo, ich heiße Peter!");
+ });
+ }
+
+ private static final int MONGODB_PORT = 27017;
+
+ @Container
+ private static final GenericContainer CONTAINER =
+ new GenericContainer("mongo:6")
+ .withClasspathResourceMapping(
+ "data/mongodb",
+ "/docker-entrypoint-initdb.d",
+ BindMode.READ_ONLY)
+ .withExposedPorts(MONGODB_PORT);
+
+ @DynamicPropertySource
+ static void addMongoPortProperty(DynamicPropertyRegistry registry)
+ {
+ registry.add("spring.data.mongodb.port", () -> CONTAINER.getMappedPort(27017));
+ }
+
+ @BeforeEach
+ void setUpLogging()
+ {
+ Slf4jLogConsumer logConsumer = new Slf4jLogConsumer(log);
+ CONTAINER.followOutput(logConsumer);
+ }
+}