I'm trying to write some unit tests for few funcionts, which used feign to get information from another service. I try to use WireMock to do it but unfortunetely i get an exception like this :
feign.RetryableException: unexpected end of stream on http://localhost:8088/... executing POST http://localhost:8088/api
at feign.FeignException.errorExecuting(FeignException.java:249)
at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:129)
at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:89)
at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:100)
at com.sun.proxy.$Proxy94.info(Unknown Source)
at nbs.mobile.cashdesk.be.adapters.XXX.service.XXXAdapter
at nbs.mobile.cashdesk.be.application.service.XXX
at nbs.mobile.cashdesk.be.adapters.web.device.DeviceControllerTest.exampleTest(DeviceControllerTest.java:83)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)
at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at com.github.tomakehurst.wiremock.junit.WireMockClassRule$1.evaluate(WireMockClassRule.java:60)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at com.github.tomakehurst.wiremock.junit.WireMockClassRule$1.evaluate(WireMockClassRule.java:75)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:221)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
Caused by: java.io.IOException: unexpected end of stream on http://localhost:8088/...
at okhttp3.internal.http1.Http1ExchangeCodec.readResponseHeaders(Http1ExchangeCodec.java:236)
at okhttp3.internal.connection.Exchange.readResponseHeaders(Exchange.java:115)
at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:94)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:43)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:94)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:88)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:229)
at okhttp3.RealCall.execute(RealCall.java:81)
at feign.okhttp.OkHttpClient.execute(OkHttpClient.java:169)
at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:119)
... 40 more
Caused by: java.io.EOFException: \n not found: limit=0 content=…
at okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.java:240)
at okhttp3.internal.http1.Http1ExchangeCodec.readHeaderLine(Http1ExchangeCodec.java:242)
at okhttp3.internal.http1.Http1ExchangeCodec.readResponseHeaders(Http1ExchangeCodec.java:213)
... 58 more
TestFunciton:
#Slf4j
#RunWith(SpringRunner.class)
#SpringBootTest
#TestPropertySource(
locations = "classpath:application-test.properties")
#AutoConfigureMockMvc
public class XXXTest {
#ClassRule
public static WireMockClassRule wireMockRule = new WireMockClassRule(8087, 8088);
#Rule
public WireMockClassRule instanceRule = wireMockRule;
#Autowired
private XXXClass xxxClass;
#BeforeEach
void setUp() {
WireMock.reset();
}
#AfterEach
void tearDown() {
}
#Test
public void exampleTest() {
wireMockRule.stubFor(WireMock.post(WireMock.urlEqualTo("/api"))
.willReturn(WireMock.aResponse().withHeader("Content-Type", "application/json")
.withStatus(200).withBody("{\"token\":\"1234\"}/n")))
;
log.error("Server Start");
log.error(wireMockRule.toString());
log.error(wireMockRule.getStubMappings().toString());
xxxClass.xxx("3214"); // This function is tested
assertEquals("12", "12");
}
}
I think that this information is enaugh to know something about this problem (I could add that it works fine with real services so in my opinion problem is somewhere in MockServer configuration).
I think you forgot to close your resulting json
.withStatus(200).withBody("{\"token\":\"1234\"/n")))
should be
.withStatus(200).withBody("{\"token\":\"1234\"}/n")))
The solution was to change port of mock server.
I have a few reactive methods from which I want to throw a common exception when the stream is empty, e.g.:
import reactor.core.publisher.Mono;
import reactor.test.StepVerifier;
public class Test {
private final Mono<Integer> errorMono = Mono.error(() -> new Exception("Empty"));
#org.junit.Test
public void testErrors() {
function1(null)
.as(StepVerifier::create)
.consumeErrorWith(Throwable::printStackTrace)
.verify();
function2(null)
.as(StepVerifier::create)
.consumeErrorWith(Throwable::printStackTrace)
.verify();
function3(null)
.as(StepVerifier::create)
.consumeErrorWith(Throwable::printStackTrace)
.verify();
}
private Mono<Integer> function1(Integer input) {
return Mono.justOrEmpty(input)
.doOnNext(i -> System.out.println("Function 1 " + i))
.switchIfEmpty(errorMono);
}
private Mono<Integer> function2(Integer input) {
return Mono.justOrEmpty(input)
.doOnNext(i -> System.out.println("Function 2 " + i))
.switchIfEmpty(errorMono);
}
private Mono<Integer> function3(Integer input) {
return Mono.justOrEmpty(input)
.doOnNext(i -> System.out.println("Function 3 " + i))
.switchIfEmpty(errorMono);
}
}
For each of these methods, the exception stack trace originates from line 1, and I can't find out which of the methods were empty:
private final Mono<Integer> errorMono = Mono.error(() -> new Exception("Empty"));
java.lang.Exception: Empty
at Test.lambda$new$0(Test.java:10)
at reactor.core.publisher.MonoErrorSupplied.subscribe(MonoErrorSupplied.java:70)
at reactor.core.publisher.Mono.subscribe(Mono.java:4252)
at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:75)
at reactor.core.publisher.FluxPeek$PeekSubscriber.onComplete(FluxPeek.java:252)
at reactor.core.publisher.Operators.complete(Operators.java:135)
at reactor.core.publisher.MonoEmpty.subscribe(MonoEmpty.java:45)
at reactor.core.publisher.Mono.subscribe(Mono.java:4252)
at reactor.test.DefaultStepVerifierBuilder$DefaultStepVerifier.toVerifierAndSubscribe(DefaultStepVerifierBuilder.java:868)
at reactor.test.DefaultStepVerifierBuilder$DefaultStepVerifier.verify(DefaultStepVerifierBuilder.java:824)
at reactor.test.DefaultStepVerifierBuilder$DefaultStepVerifier.verify(DefaultStepVerifierBuilder.java:816)
at Test.testErrors(Test.java:17)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:221)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
java.lang.Exception: Empty
at Test.lambda$new$0(Test.java:10)
at reactor.core.publisher.MonoErrorSupplied.subscribe(MonoErrorSupplied.java:70)
at reactor.core.publisher.Mono.subscribe(Mono.java:4252)
at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:75)
at reactor.core.publisher.FluxPeek$PeekSubscriber.onComplete(FluxPeek.java:252)
at reactor.core.publisher.Operators.complete(Operators.java:135)
at reactor.core.publisher.MonoEmpty.subscribe(MonoEmpty.java:45)
at reactor.core.publisher.Mono.subscribe(Mono.java:4252)
at reactor.test.DefaultStepVerifierBuilder$DefaultStepVerifier.toVerifierAndSubscribe(DefaultStepVerifierBuilder.java:868)
at reactor.test.DefaultStepVerifierBuilder$DefaultStepVerifier.verify(DefaultStepVerifierBuilder.java:824)
at reactor.test.DefaultStepVerifierBuilder$DefaultStepVerifier.verify(DefaultStepVerifierBuilder.java:816)
at Test.testErrors(Test.java:21)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:221)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
java.lang.Exception: Empty
at Test.lambda$new$0(Test.java:10)
at reactor.core.publisher.MonoErrorSupplied.subscribe(MonoErrorSupplied.java:70)
at reactor.core.publisher.Mono.subscribe(Mono.java:4252)
at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onComplete(FluxSwitchIfEmpty.java:75)
at reactor.core.publisher.FluxPeek$PeekSubscriber.onComplete(FluxPeek.java:252)
at reactor.core.publisher.Operators.complete(Operators.java:135)
at reactor.core.publisher.MonoEmpty.subscribe(MonoEmpty.java:45)
at reactor.core.publisher.Mono.subscribe(Mono.java:4252)
at reactor.test.DefaultStepVerifierBuilder$DefaultStepVerifier.toVerifierAndSubscribe(DefaultStepVerifierBuilder.java:868)
at reactor.test.DefaultStepVerifierBuilder$DefaultStepVerifier.verify(DefaultStepVerifierBuilder.java:824)
at reactor.test.DefaultStepVerifierBuilder$DefaultStepVerifier.verify(DefaultStepVerifierBuilder.java:816)
at Test.testErrors(Test.java:25)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:221)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
How can I write a common exception throwing mechanism which will provide the correct function in stack trace?
Instead of relying a single Mono<Integer> errorMono = Mono.error(() -> new Exception("Empty"));, you can create a specific Mono.error to each function. Then you write the specific message on these Mono.error like the following:
private Mono<Integer> function1(Integer input) {
return Mono.justOrEmpty(input)
.doOnNext(i -> System.out.println("Function 1 " + i))
.switchIfEmpty(Mono.error(() -> new Exception("function 1")));
}
private Mono<Integer> function2(Integer input) {
return Mono.justOrEmpty(input)
.doOnNext(i -> System.out.println("Function 2 " + i))
.switchIfEmpty(Mono.error(() -> new Exception("function 2")));
}
private Mono<Integer> function3(Integer input) {
return Mono.justOrEmpty(input)
.doOnNext(i -> System.out.println("Function 3 " + i))
.switchIfEmpty(Mono.error(() -> new Exception("function 3")));
}
Then you will be able to see on the stack trace which function is throwing your error:
java.lang.Exception: function 1
at com.github.felipegutierrez.explore.advance.CustomExceptionTest.lambda$function1$2(CustomExceptionTest.java:30)
...
java.lang.Exception: function 2
at com.github.felipegutierrez.explore.advance.CustomExceptionTest.lambda$function2$4(CustomExceptionTest.java:36)
...
java.lang.Exception: function 3
at com.github.felipegutierrez.explore.advance.CustomExceptionTest.lambda$function3$6(CustomExceptionTest.java:42)
I am writing a junit test case to call an api deployed on aws api gateway.
The code is :
#Test
public void testAwsApiUtilsMakeRequest() throws Exception {
RetryPolicy retryPolicy = new RetryPolicy(PredefinedRetryPolicies.DEFAULT_RETRY_CONDITION,
PredefinedRetryPolicies.DEFAULT_BACKOFF_STRATEGY,
3, true);
ClientConfiguration cfg = Mockito.mock(ClientConfiguration.class);
RetryPolicyAdapter rpa = new RetryPolicyAdapter(retryPolicy, cfg);
System.out.println(rpa.getLegacyRetryPolicy());
cfg.setRetryPolicy(rpa.getLegacyRetryPolicy());
cfg.withMaxErrorRetry(3);
Request request = Mockito.mock(Request.class);
request.setHttpMethod(HttpMethodName.GET);
request.setEndpoint(new URI("http://localhost:" + port));
request.setResourcePath("/myapro-1.0.0/profiles/" + "123");
request.addHeader(HttpHeaders.CONTENT_TYPE, APPLICATION_JSON.toString());
Response<AmazonWebServiceResponse<String>> awsResponse = Mockito.mock(Response.class);
Mockito.when(awsApiUtils.postToAwsClient(request, cfg))
.thenReturn(awsResponse);
Mockito.when(awsApiUtils.makeRequest(request))
.thenReturn(awsResponse.getAwsResponse().getResult());
//assertThat(sdReprocessController.getProfileInfo("123"));
}
When I am running the test I am getting the error: java.lang.IllegalArgumentException: legacyRetryPolicy cannot be null
Does anyone know how to resolve the issue / how to set legacyRetryPolicy? Thanks.
Here is the log:
java.lang.IllegalArgumentException: legacyRetryPolicy cannot be null
at com.amazonaws.util.ValidationUtils.assertNotNull(ValidationUtils.java:37)
at com.amazonaws.retry.RetryPolicyAdapter.<init>(RetryPolicyAdapter.java:36)
at com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:347)
at com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:320)
at com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:308)
at com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:286)
at com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:269)
at com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:253)
at org.act.leap.util.AwsApiUtils.postToAwsClient(AwsApiUtils.java:62)
at org.act.leap.resttemplate.controller.SdReprocessControllerTest.testAwsApiUtilsMakeRequest(SdReprocessControllerTest.java:251)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:73)
at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:83)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
I am using Spring Boot REST and Mockito. How can I write a test case?
Error:
java.lang.NullPointerException
at java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011)
at java.util.concurrent.ConcurrentHashMap$KeySetView.add(ConcurrentHashMap.java:4595)
at com.mastercard.customer.data.management.refdata.service.RegionService.lambda$2(RegionService.java:58)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:419)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at com.mastercard.customer.data.management.refdata.service.RegionService.findAllRegions(RegionService.java:49)
at com.mastercard.customer.data.management.refdata.service.RegionServiceTest.findAllRegions_SuccessTest(RegionServiceTest.java:68)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.mockito.internal.runners.DefaultInternalRunner$1$1.evaluate(DefaultInternalRunner.java:44)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.mockito.internal.runners.DefaultInternalRunner$1.run(DefaultInternalRunner.java:74)
at org.mockito.internal.runners.DefaultInternalRunner.run(DefaultInternalRunner.java:80)
at org.mockito.internal.runners.StrictRunner.run(StrictRunner.java:39)
at org.mockito.junit.MockitoJUnitRunner.run(MockitoJUnitRunner.java:163)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206)
Code
public List<Employee> findAllEmployees() {
List<Object> obj = mongoTemplate.query(Department.class).distinct("employees").all();
List<Employee> employees = null;
if (!CollectionUtils.isEmpty(obj)) {
employees = obj.stream().map(e -> (Employee) e).filter(distinctByKey(Employee::getEmployeeCd)).collect(Collectors.toList());
}
return employees;
}
public <T> Predicate<T> distinctByKey(Function<? super T, ?> keyExtractor) {
Set<Object> seen = ConcurrentHashMap.newKeySet();
return t -> seen.add(keyExtractor.apply(t));
}
Test case
#Test
public void findEmp() {
when(mongoTemplate.query(Department.class)).thenReturn(executableDepartment);
when(mongoTemplate.query(Department.class).distinct("employees")).thenReturn(distinctDepartment);
when(mongoTemplate.query(Department.class).distinct("employees").all()).thenReturn(obj);
when(obj.stream()).thenReturn(Stream.of(obj));
when(obj.stream().map(e -> (Region) e).thenReturn(Stream.of(region));
assertNotNull(empService.findAllRegions());
}
1) Try to set up you mocking one by one instead of cascading the calls:
when(mongoTemplate.query(Department.class)).thenReturn(executableDepartment);
when(executableDepartment).distinct("employees")).thenReturn(distinctDepartment);
when(distinctDepartment.all()).thenReturn(obj);
The executableDepartment and distinctDepartment need to be mocks as well of course.
2) Do not mock the List interface. Feed it with pre-configured data and allow the SUT to work on it as it is. Sp mocking should only be used in this part:
mongoTemplate.query(Department.class).distinct("employees").all();
So the part that provides data. But leave the actual logic to run as it is.
I have a spring boot api application and I used springfox to generate swaggerv2 api documentation and I created a test to see if my api definitions are correct.
Heres how my configuration looks like:
#Configuration
#EnableSwagger2
public class SpringFoxConfig {
#Value("${my.app.version}")
private String appVersion;
#Bean
public Docket api() {
return new Docket(DocumentationType.SWAGGER_2).groupName("My App").select()
.apis(RequestHandlerSelectors.basePackage("my.com.app.controller"))
.paths(regex("/api/MyAppName.*")).build()
.globalOperationParameters(
Arrays.asList(new ParameterBuilder().name("UserKey").description("Unique user key.")
.modelRef(new ModelRef("string")).parameterType("header").required(true).build()))
.apiInfo(apiInfo()).securitySchemes(Arrays.asList(apiKey()));
}
private ApiInfo apiInfo() {
return new ApiInfoBuilder().title("My App API Documentaion")
.description("This documentation is for the MyApp.").version(appVersion)
.license("MyApp.cc").licenseUrl("https://myapp.com/").build();
}
private ApiKey apiKey() {
return new ApiKey("apiKey", "APIKEY", "header");
}
}
Here's how my test looks:
#Test
public void shouldFindNoDifferences() {
File implFirstSwaggerLocation = new File(
MyTest.class.getResource("/swagger.json").getFile());
File designFirstSwaggerLocation = new File(
MyTest.class.getResource("/swagger.yaml").getFile());
SwaggerAssertions.assertThat(implFirstSwaggerLocation.getAbsolutePath())
.isEqualTo(designFirstSwaggerLocation.getAbsolutePath());
}
It's exactly what they have from their examples. When I run my test It throws this exception below:
Stack trace:
org.assertj.core.error.AssertJMultipleFailuresError:
Multiple Failures (1 failure)
-- failure 1 --
[Checking Paths]
Expecting:
<["/api/myAppName",
"/api/myAppName/eventTypes",
"/api/myAppName/initialize",
"/api/myAppName/latest/{type}/{user}",
"/api/myAppName/stats/due/{ids}/custom/{days}",
"/api/myAppName/stats/due/{ids}/{period}",
"/api/myAppName/stats/orgs/most/{ids}/{period}",
"/api/myAppName/stats/orgs/{id}/{period}",
"/api/myAppName/stats/{ids}/{period}",
"/api/myAppName/stats/{ids}/{period}/{days}",
"/api/myAppName/summarize",
"/api/myAppName/{id}",
"/api/myAppName/{source}/events",
"/api/myAppName/{source}/events/batch"]>
to contain only:
<["/v2/api/myAppName/stats/orgs/{id}/{period}",
"/v2/api/myAppName/{source}/events/batch",
"/v2/api/myAppName/initialize",
"/v2/api/myAppName/eventTypes",
"/v2/api/myAppName/stats/due/{ids}/{period}",
"/v2/api/myAppName/stats/orgs/most/{ids}/{period}",
"/v2/api/myAppName/{source}/events",
"/v2/api/myAppName/{id}",
"/v2/api/myAppName/latest/{type}/{user}",
"/v2/api/myAppName/stats/due/{ids}/custom/{days}",
"/v2/api/myAppName/stats/{ids}/{period}",
"/v2/api/myAppName",
"/v2/api/myAppName/summarize",
"/v2/api/myAppName/stats/{ids}/{period}/{days}"]>
elements not found:
<["/v2/api/myAppName/stats/orgs/{id}/{period}",
"/v2/api/myAppName/{source}/events/batch",
"/v2/api/myAppName/initialize",
"/v2/api/myAppName/eventTypes",
"/v2/api/myAppName/stats/due/{ids}/{period}",
"/v2/api/myAppName/stats/orgs/most/{ids}/{period}",
"/v2/api/myAppName/{source}/events",
"/v2/api/myAppName/{id}",
"/v2/api/myAppName/latest/{type}/{user}",
"/v2/api/myAppName/stats/due/{ids}/custom/{days}",
"/v2/api/myAppName/stats/{ids}/{period}",
"/v2/api/myAppName",
"/v2/api/myAppName/summarize",
"/v2/api/myAppName/stats/{ids}/{period}/{days}"]>
and elements not expected:
<["/api/myAppName",
"/api/myAppName/eventTypes",
"/api/myAppName/initialize",
"/api/myAppName/latest/{type}/{user}",
"/api/myAppName/stats/due/{ids}/custom/{days}",
"/api/myAppName/stats/due/{ids}/{period}",
"/api/myAppName/stats/orgs/most/{ids}/{period}",
"/api/myAppName/stats/orgs/{id}/{period}",
"/api/myAppName/stats/{ids}/{period}",
"/api/myAppName/stats/{ids}/{period}/{days}",
"/api/myAppName/summarize",
"/api/myAppName/{id}",
"/api/myAppName/{source}/events",
"/api/myAppName/{source}/events/batch"]>
at DocumentationDrivenValidator.validatePaths(DocumentationDrivenValidator.java:108)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at io.github.robwin.swagger.test.DocumentationDrivenValidator.validateSwagger(DocumentationDrivenValidator.java:88)
at io.github.robwin.swagger.test.SwaggerAssert.isEqualTo(SwaggerAssert.java:75)
at io.github.robwin.swagger.test.SwaggerAssert.isEqualTo(SwaggerAssert.java:87)
at my.com.app.definitions.MyTest.shouldFindNoDifferences(MyTest.java:58)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)
at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:89)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:542)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:770)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:464)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)
I think I'm missing something.
It was my carelessness that resulted to this problem but thanks to Roddy's comment I was able to notice my mistake.
In my assertj-swagger.properties file there contains assertj.swagger.pathsPrependExpected=/v2 property that causes this issue.