split integration test into different test scenarios, one for each step in the webclient process
This commit is contained in:
Gerardo Roza
parent
c477f22f27
commit
047dfdef25
@ -33,8 +33,8 @@ import org.springframework.web.reactive.function.client.WebClient;
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import org.springframework.web.reactive.function.client.WebClient.RequestBodySpec;
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import org.springframework.web.reactive.function.client.WebClient.RequestBodyUriSpec;
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import org.springframework.web.reactive.function.client.WebClient.RequestHeadersSpec;
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import org.springframework.web.reactive.function.client.WebClient.RequestHeadersUriSpec;
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import org.springframework.web.reactive.function.client.WebClient.ResponseSpec;
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import org.springframework.web.reactive.function.client.WebClient.UriSpec;
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import org.springframework.web.reactive.function.client.WebClientRequestException;
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import com.baeldung.web.reactive.client.Foo;
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@ -53,9 +53,13 @@ public class WebClientIntegrationTest {
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@LocalServerPort
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private int port;
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private static final String BODY_VALUE = "bodyValue";
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private static final ParameterizedTypeReference<Map<String, String>> MAP_RESPONSE_REF = new ParameterizedTypeReference<Map<String, String>>() {
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};
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@Test
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public void givenDifferentScenarios_whenRequestsSent_thenObtainExpectedResponses() {
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// WebClient
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public void givenDifferentWebClientCreationMethods_whenUsed_thenObtainExpectedResponse() {
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// WebClient creation
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WebClient client1 = WebClient.create();
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WebClient client2 = WebClient.create("http://localhost:" + port);
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WebClient client3 = WebClient.builder()
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@ -65,58 +69,149 @@ public class WebClientIntegrationTest {
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.defaultUriVariables(Collections.singletonMap("url", "http://localhost:8080"))
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.build();
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// request specification
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UriSpec<RequestBodySpec> uriSpecPost1 = client1.method(HttpMethod.POST);
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UriSpec<RequestBodySpec> uriSpecPost2 = client2.post();
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UriSpec<?> requestGet = client3.get();
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// response assertions
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StepVerifier.create(retrieveResponse(client1.post()
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.uri("http://localhost:" + port + "/resource")))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(retrieveResponse(client2))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(retrieveResponse(client3))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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// assert response without specifying URI
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StepVerifier.create(retrieveResponse(client1))
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.expectErrorMatches(ex -> WebClientRequestException.class.isAssignableFrom(ex.getClass()) && ex.getMessage()
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.contains("Connection refused"))
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.verify();
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}
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@Test
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public void givenDifferentMethodSpecifications_whenUsed_thenObtainExpectedResponse() {
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// request specification
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RequestBodyUriSpec uriSpecPost1 = createDefaultClient().method(HttpMethod.POST);
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RequestBodyUriSpec uriSpecPost2 = createDefaultClient().post();
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RequestHeadersUriSpec<?> requestGet = createDefaultClient().get();
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// response assertions
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StepVerifier.create(retrieveResponse(uriSpecPost1))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(retrieveResponse(uriSpecPost2))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(retrieveGetResponse(requestGet))
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.expectNextMatches(nextMap -> nextMap.get("field")
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.equals("value"))
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.verifyComplete();
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}
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@Test
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public void givenDifferentUriSpecifications_whenUsed_thenObtainExpectedResponse() {
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// uri specification
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RequestBodySpec bodySpecPost = uriSpecPost1.uri("http://localhost:" + port + "/resource");
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RequestBodySpec bodySpecPostMultipart = uriSpecPost2.uri(uriBuilder -> uriBuilder.pathSegment("resource-multipart")
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RequestBodySpec bodySpecUsingString = createDefaultPostRequest().uri("/resource");
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RequestBodySpec bodySpecUsingUriBuilder = createDefaultPostRequest().uri(uriBuilder -> uriBuilder.pathSegment("resource")
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.build());
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RequestBodySpec fooBodySpecPost = createDefaultPostRequest().uri("/resource-foo");
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RequestBodySpec bodySpecOverridenBaseUri = client3.post()
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RequestBodySpec bodySpecusingURI = createDefaultPostRequest().uri(URI.create("http://localhost:" + port + "/resource"));
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RequestBodySpec bodySpecOverridenBaseUri = createDefaultPostRequest().uri(URI.create("/resource"));
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RequestBodySpec bodySpecOverridenBaseUri2 = WebClient.builder()
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.baseUrl("http://localhost:" + port)
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.build()
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.post()
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.uri(URI.create("/resource"));
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// request body specifications
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String bodyValue = "bodyValue";
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RequestHeadersSpec<?> headersSpecPost1 = bodySpecPost.body(BodyInserters.fromPublisher(Mono.just(bodyValue), String.class));
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RequestHeadersSpec<?> headersSpecPost2 = createDefaultPostResourceRequest().body(BodyInserters.fromValue(bodyValue));
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RequestHeadersSpec<?> headersSpecPost3 = createDefaultPostResourceRequest().bodyValue(bodyValue);
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RequestHeadersSpec<?> headersSpecFooPost = fooBodySpecPost.body(Mono.just(new Foo("fooName")), Foo.class);
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RequestHeadersSpec<?> headersSpecGet = requestGet.uri("/resource");
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// response assertions
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StepVerifier.create(retrieveResponse(bodySpecUsingString))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(retrieveResponse(bodySpecUsingUriBuilder))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(retrieveResponse(bodySpecusingURI))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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// assert sending request overriding base URI
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StepVerifier.create(retrieveResponse(bodySpecOverridenBaseUri))
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.expectErrorMatches(ex -> WebClientRequestException.class.isAssignableFrom(ex.getClass()) && ex.getMessage()
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.contains("Connection refused"))
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.verify();
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StepVerifier.create(retrieveResponse(bodySpecOverridenBaseUri2))
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.expectErrorMatches(ex -> WebClientRequestException.class.isAssignableFrom(ex.getClass()) && ex.getMessage()
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.contains("Connection refused"))
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.verify();
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}
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// request body specifications - using inserters
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@Test
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public void givenDifferentBodySpecifications_whenUsed_thenObtainExpectedResponse() {
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// request body specifications
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RequestHeadersSpec<?> headersSpecPost1 = createDefaultPostResourceRequest().body(BodyInserters.fromPublisher(Mono.just(BODY_VALUE), String.class));
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RequestHeadersSpec<?> headersSpecPost2 = createDefaultPostResourceRequest().body(BodyInserters.fromValue(BODY_VALUE));
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RequestHeadersSpec<?> headersSpecPost3 = createDefaultPostResourceRequest().bodyValue(BODY_VALUE);
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RequestHeadersSpec<?> headersSpecFooPost = createDefaultPostRequest().uri("/resource-foo")
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.body(Mono.just(new Foo("fooName")), Foo.class);
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BodyInserter<Object, ReactiveHttpOutputMessage> inserterPlainObject = BodyInserters.fromValue(new Object());
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RequestHeadersSpec<?> headersSpecPlainObject = createDefaultPostResourceRequest().body(inserterPlainObject);
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// request body specifications - using other inserter method (multipart request)
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LinkedMultiValueMap<String, String> map = new LinkedMultiValueMap<>();
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map.add("key1", "multipartValue1");
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map.add("key2", "multipartValue2");
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BodyInserter<MultiValueMap<String, Object>, ClientHttpRequest> inserterMultipart = BodyInserters.fromMultipartData(map);
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BodyInserter<Object, ReactiveHttpOutputMessage> inserterObject = BodyInserters.fromValue(new Object());
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BodyInserter<String, ReactiveHttpOutputMessage> inserterString = BodyInserters.fromValue(bodyValue);
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RequestHeadersSpec<?> headersSpecInserterMultipart = createDefaultPostRequest().uri("/resource-multipart")
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.body(inserterMultipart);
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RequestHeadersSpec<?> headersSpecInserterMultipart = bodySpecPostMultipart.body(inserterMultipart);
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RequestHeadersSpec<?> headersSpecInserterObject = createDefaultPostResourceRequest().body(inserterObject);
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RequestHeadersSpec<?> headersSpecInserterString = createDefaultPostResourceRequest().body(inserterString);
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// response assertions
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StepVerifier.create(retrieveResponse(headersSpecPost1))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(retrieveResponse(headersSpecPost2))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(retrieveResponse(headersSpecPost3))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(retrieveResponse(headersSpecFooPost))
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.expectNext("processedFoo-fooName")
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.verifyComplete();
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StepVerifier.create(retrieveResponse(headersSpecInserterMultipart))
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.expectNext("processed-multipartValue1-multipartValue2")
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.verifyComplete();
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// assert error plain `new Object()` as request body
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StepVerifier.create(retrieveResponse(headersSpecPlainObject))
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.expectError(CodecException.class)
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.verify();
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// assert response for request with no body
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Mono<Map<String, String>> responsePostWithNoBody = createDefaultPostResourceRequest().exchangeToMono(responseHandler -> {
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assertThat(responseHandler.statusCode()).isEqualTo(HttpStatus.BAD_REQUEST);
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return responseHandler.bodyToMono(MAP_RESPONSE_REF);
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});
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StepVerifier.create(responsePostWithNoBody)
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.expectNextMatches(nextMap -> nextMap.get("error")
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.equals("Bad Request"))
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.verifyComplete();
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}
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@Test
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public void givenPostSpecifications_whenHeadersAdded_thenObtainExpectedResponse() {
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// request header specification
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RequestHeadersSpec<?> headersSpecInserterStringWithHeaders = headersSpecInserterString.header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
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RequestHeadersSpec<?> headersSpecInserterStringWithHeaders = createDefaultPostResourceRequestResponse().header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
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.accept(MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML)
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.acceptCharset(StandardCharsets.UTF_8)
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.ifNoneMatch("*")
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.ifModifiedSince(ZonedDateTime.now());
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// request
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ResponseSpec responseSpecPostString = headersSpecInserterStringWithHeaders.retrieve();
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// response assertions
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StepVerifier.create(retrieveResponse(headersSpecInserterStringWithHeaders))
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.expectNext("processed-bodyValue")
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.verifyComplete();
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}
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@Test
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public void givenDifferentResponseSpecifications_whenUsed_thenObtainExpectedResponse() {
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ResponseSpec responseSpecPostString = createDefaultPostResourceRequestResponse().retrieve();
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Mono<String> responsePostString = responseSpecPostString.bodyToMono(String.class);
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Mono<String> responsePostMultipart = headersSpecInserterMultipart.header(HttpHeaders.CONTENT_TYPE, MediaType.MULTIPART_FORM_DATA_VALUE)
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.retrieve()
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.bodyToMono(String.class);
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Mono<String> responsePostWithBody1 = headersSpecPost1.retrieve()
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.bodyToMono(String.class);
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Mono<String> responsePostWithBody2 = headersSpecPost2.retrieve()
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.bodyToMono(String.class);
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Mono<String> responsePostWithBody3 = headersSpecPost3.exchangeToMono(response -> {
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Mono<String> responsePostString2 = createDefaultPostResourceRequestResponse().exchangeToMono(response -> {
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if (response.statusCode()
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.equals(HttpStatus.OK)) {
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return response.bodyToMono(String.class);
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@ -128,55 +223,37 @@ public class WebClientIntegrationTest {
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.flatMap(Mono::error);
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}
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});
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Mono<String> responsePostFoo = headersSpecFooPost.retrieve()
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.bodyToMono(String.class);
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ParameterizedTypeReference<Map<String, String>> ref = new ParameterizedTypeReference<Map<String, String>>() {
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};
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Mono<Map<String, String>> responseGet = headersSpecGet.retrieve()
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.bodyToMono(ref);
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Mono<Map<String, String>> responsePostWithNoBody = createDefaultPostResourceRequest().exchangeToMono(responseHandler -> {
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assertThat(responseHandler.statusCode()).isEqualTo(HttpStatus.BAD_REQUEST);
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return responseHandler.bodyToMono(ref);
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Mono<String> responsePostNoBody = createDefaultPostResourceRequest().exchangeToMono(response -> {
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if (response.statusCode()
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.equals(HttpStatus.OK)) {
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return response.bodyToMono(String.class);
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} else if (response.statusCode()
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.is4xxClientError()) {
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return Mono.just("Error response");
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} else {
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return response.createException()
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.flatMap(Mono::error);
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}
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});
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Mono<String> responsePostOverridenBaseUri = bodySpecOverridenBaseUri.retrieve()
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.bodyToMono(String.class);
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Mono<Map<String, String>> responseGet = createDefaultClient().get()
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.uri("/resource")
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.retrieve()
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.bodyToMono(MAP_RESPONSE_REF);
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// response assertions
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StepVerifier.create(responsePostString)
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(responsePostMultipart)
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.expectNext("processed-multipartValue1-multipartValue2")
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.verifyComplete();
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StepVerifier.create(responsePostWithBody1)
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StepVerifier.create(responsePostString2)
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(responsePostWithBody2)
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.expectNext("processed-bodyValue")
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.verifyComplete();
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StepVerifier.create(responsePostWithBody3)
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.expectNext("processed-bodyValue")
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StepVerifier.create(responsePostNoBody)
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.expectNext("Error response")
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.verifyComplete();
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StepVerifier.create(responseGet)
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.expectNextMatches(nextMap -> nextMap.get("field")
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.equals("value"))
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.verifyComplete();
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StepVerifier.create(responsePostFoo)
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.expectNext("processedFoo-fooName")
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.verifyComplete();
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StepVerifier.create(responsePostWithNoBody)
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.expectNextMatches(nextMap -> nextMap.get("error")
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.equals("Bad Request"))
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.verifyComplete();
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// assert sending request overriding base uri
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StepVerifier.create(responsePostOverridenBaseUri)
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.expectErrorMatches(ex -> WebClientRequestException.class.isAssignableFrom(ex.getClass()) && ex.getMessage()
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.contains("Connection refused"))
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.verify();
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// assert error plain `new Object()` as request body
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StepVerifier.create(headersSpecInserterObject.exchangeToMono(response -> response.bodyToMono(String.class)))
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.expectError(CodecException.class)
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.verify();
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}
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@Test
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@ -202,12 +279,53 @@ public class WebClientIntegrationTest {
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.verify();
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}
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// helper methods to create default instances
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private WebClient createDefaultClient() {
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return WebClient.create("http://localhost:" + port);
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}
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private RequestBodyUriSpec createDefaultPostRequest() {
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return WebClient.create("http://localhost:" + port)
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.post();
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return createDefaultClient().post();
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}
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private RequestBodySpec createDefaultPostResourceRequest() {
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return createDefaultPostRequest().uri("/resource");
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}
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private RequestHeadersSpec<?> createDefaultPostResourceRequestResponse() {
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return createDefaultPostResourceRequest().bodyValue(BODY_VALUE);
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}
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// helper methods to retrieve a response based on different steps of the process (specs)
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private Mono<String> retrieveResponse(WebClient client) {
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return client.post()
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.uri("/resource")
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.bodyValue(BODY_VALUE)
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.retrieve()
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.bodyToMono(String.class);
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}
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private Mono<String> retrieveResponse(RequestBodyUriSpec spec) {
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return spec.uri("/resource")
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.bodyValue(BODY_VALUE)
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.retrieve()
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.bodyToMono(String.class);
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}
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private Mono<Map<String, String>> retrieveGetResponse(RequestHeadersUriSpec<?> spec) {
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return spec.uri("/resource")
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.retrieve()
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.bodyToMono(MAP_RESPONSE_REF);
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}
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private Mono<String> retrieveResponse(RequestBodySpec spec) {
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return spec.bodyValue(BODY_VALUE)
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.retrieve()
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.bodyToMono(String.class);
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}
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private Mono<String> retrieveResponse(RequestHeadersSpec<?> spec) {
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return spec.retrieve()
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.bodyToMono(String.class);
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}
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}
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