juplo.de Git - demos/testing/blob - src/test/java/de/juplo/demo/RemoteContentServiceTest.java

   1 package de.juplo.demo;
   2
   3
   4 import org.junit.jupiter.api.BeforeEach;
   5 import org.junit.jupiter.api.Test;
   6 import org.junit.jupiter.api.extension.ExtendWith;
   7 import static org.mockito.ArgumentMatchers.eq;
   8 import static org.mockito.Mockito.when;
   9 import org.springframework.boot.test.mock.mockito.MockBean;
  10 import org.springframework.test.context.junit.jupiter.SpringExtension;
  11 import org.springframework.web.reactive.function.client.WebClient;
  12 import org.springframework.web.reactive.function.client.WebClient.RequestHeadersSpec;
  13 import org.springframework.web.reactive.function.client.WebClient.RequestHeadersUriSpec;
  14 import org.springframework.web.reactive.function.client.WebClient.ResponseSpec;
  15 import reactor.core.publisher.Mono;
  16 import reactor.test.StepVerifier;
  17
  18
  19 /**
  20  * Unit-Test for class {@link RemoteContentService}.
  21  * @author Kai Moritz
  22  */
  23 @ExtendWith(SpringExtension.class)
  24 public class RemoteContentServiceTest
  25 {
  26   RemoteContentService service;
  27
  28   @MockBean
  29   WebClient webClient;
  30   @MockBean(name = "uriSpec")
  31   RequestHeadersUriSpec uriSpec;
  32   @MockBean(name = "headersSpec")
  33   RequestHeadersSpec headersSpec;
  34   @MockBean(name = "responseSpec")
  35   ResponseSpec responseSpec;
  36
  37
  38   @BeforeEach
  39   void setUp()
  40   {
  41     service = new RemoteContentService(webClient);
  42   }
  43
  44
  45   @Test
  46   void test()
  47   {
  48     when(webClient.get()).thenReturn(uriSpec);
  49     when(uriSpec.uri(eq("/foo"))).thenReturn(headersSpec);
  50     when(headersSpec.retrieve()).thenReturn(responseSpec);
  51     when(responseSpec.bodyToMono(String.class)).thenReturn(Mono.just("bar"));
  52
  53     Mono<String> result = service.getRemoteText("/foo");
  54
  55     StepVerifier
  56         .create(result)
  57         .expectNext("bar")
  58         .verifyComplete();
  59   }
  60 }