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Alexandru-BorzaAlexandru-Borza
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BAEL-9036 - Integrating WireMock with Spring Boot (#18403)
* wiremock working test * wiremock tests * fix property file * fix test names
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‎testing-modules/spring-testing-2/pom.xml

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<version>${hsqldb.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.wiremock.integrations</groupId>
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<artifactId>wiremock-spring-boot</artifactId>
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<version>2.2.0</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-core</artifactId>
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<version>${jackson.version}</version>
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</dependency>
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<version>${jackson.version}</version>
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</dependency>
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</dependencies>
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<build>

‎testing-modules/spring-testing-2/src/test/java/com/baeldung/wiremock/InjectedWiremockIntegrationTest.java

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package com.baeldung.wiremock;
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import static com.github.tomakehurst.wiremock.client.WireMock.get;
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import static com.github.tomakehurst.wiremock.client.WireMock.okJson;
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import org.junit.jupiter.api.Assertions;
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import org.junit.jupiter.api.Test;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.boot.test.web.client.TestRestTemplate;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.wiremock.spring.ConfigureWireMock;
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import org.wiremock.spring.EnableWireMock;
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import org.wiremock.spring.InjectWireMock;
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import com.github.tomakehurst.wiremock.WireMockServer;
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@SpringBootTest(classes = SimpleWiremockIntegrationTest.AppConfiguration.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
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@EnableWireMock({
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@ConfigureWireMock(name = "user-service", port = 8081),
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@ConfigureWireMock(name = "product-service", port = 8082)
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})
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public class InjectedWiremockIntegrationTest {
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@InjectWireMock("user-service")
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WireMockServer mockUserService;
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@InjectWireMock("product-service")
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WireMockServer mockProductService;
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@Autowired
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private TestRestTemplate restTemplate;
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@Test
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void givenEmptyUserList_whenFetchingUsers_thenReturnsEmptyList() {
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mockUserService.stubFor(get("/users").willReturn(okJson("[]")));
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ResponseEntity<String> response = restTemplate
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.getForEntity("http://localhost:8081/users", String.class);
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Assertions.assertEquals(HttpStatus.OK, response.getStatusCode());
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Assertions.assertEquals("[]", response.getBody());
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}
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@Test
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void givenUserAndProductLists_whenFetchingUsersAndProducts_thenReturnsMockedData() {
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mockUserService
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.stubFor(get("/users")
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.willReturn(okJson("[{\"id\": 1, \"name\": \"John\"}]")));
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mockProductService
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.stubFor(get("/products")
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.willReturn(okJson("[{\"id\": 101, \"name\": \"Laptop\"}]")));
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ResponseEntity<String> userResponse = restTemplate
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.getForEntity("http://localhost:8081/users", String.class);
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ResponseEntity<String> productResponse = restTemplate
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.getForEntity("http://localhost:8082/products", String.class);
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Assertions.assertEquals(HttpStatus.OK, userResponse.getStatusCode());
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Assertions.assertEquals("[{\"id\": 1, \"name\": \"John\"}]", userResponse.getBody());
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Assertions.assertEquals(HttpStatus.OK, productResponse.getStatusCode());
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Assertions.assertEquals("[{\"id\": 101, \"name\": \"Laptop\"}]", productResponse.getBody());
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}
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@SpringBootApplication
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static class AppConfiguration {}
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}

‎testing-modules/spring-testing-2/src/test/java/com/baeldung/wiremock/SimpleWiremockIntegrationTest.java

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package com.baeldung.wiremock;
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import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
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import static com.github.tomakehurst.wiremock.client.WireMock.get;
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import static com.github.tomakehurst.wiremock.client.WireMock.ok;
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import static com.github.tomakehurst.wiremock.client.WireMock.okJson;
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import static com.github.tomakehurst.wiremock.client.WireMock.stubFor;
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import org.junit.jupiter.api.Assertions;
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import org.junit.jupiter.api.Test;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.boot.test.web.client.TestRestTemplate;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.wiremock.spring.EnableWireMock;
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@SpringBootTest(classes = SimpleWiremockIntegrationTest.AppConfiguration.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
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@EnableWireMock
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class SimpleWiremockIntegrationTest {
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@Value("${wiremock.server.baseUrl}")
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private String wireMockUrl;
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@Autowired
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private TestRestTemplate restTemplate;
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@Test
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void givenWireMockStub_whenGetPing_thenReturnsPong() {
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stubFor(get("/ping").willReturn(ok("pong")));
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ResponseEntity<String> response = restTemplate.getForEntity(wireMockUrl + "/ping", String.class);
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Assertions.assertEquals("pong", response.getBody());
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}
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@Test
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void givenWireMockStub_whenGetGreeting_thenReturnsMockedJsonResponse() {
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String mockResponse = "{\"message\": \"Hello, Baeldung!\"}";
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stubFor(get("/api/greeting")
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.willReturn(okJson(mockResponse)));
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ResponseEntity<String> response = restTemplate.getForEntity(wireMockUrl + "/api/greeting", String.class);
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Assertions.assertEquals(HttpStatus.OK, response.getStatusCode());
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Assertions.assertEquals(mockResponse, response.getBody());
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}
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@Test
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void givenWireMockStub_whenGetUnknownResource_thenReturnsNotFound() {
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stubFor(get("/api/unknown").willReturn(aResponse().withStatus(404)));
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ResponseEntity<String> response = restTemplate.getForEntity(wireMockUrl + "/api/unknown", String.class);
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Assertions.assertEquals(HttpStatus.NOT_FOUND, response.getStatusCode());
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}
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@SpringBootApplication
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static class AppConfiguration {}
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}

‎testing-modules/spring-testing-2/src/test/resources/application.properties

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wiremock.server.baseUrl= http://localhost:8080

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