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

   1 package de.juplo.demo;
   2
   3
   4 import org.junit.jupiter.api.BeforeEach;
   5 import org.junit.jupiter.api.DisplayName;
   6 import org.junit.jupiter.api.Test;
   7 import org.mockito.Mockito;
   8 import static org.mockito.Mockito.when;
   9 import org.springframework.web.reactive.function.client.WebClientResponseException;
  10 import org.springframework.web.reactive.function.client.WebClientResponseException.NotFound;
  11 import reactor.core.publisher.Mono;
  12 import reactor.test.StepVerifier;
  13
  14
  15 /**
  16  * Unit-Test for class {@link RestController}.
  17  * @author Kai Moritz
  18  */
  19 public class RestControllerTest
  20 {
  21   RestController controller;
  22   RemoteContentService service;
  23
  24
  25   @BeforeEach
  26   void setUp()
  27   {
  28     service = Mockito.mock(RemoteContentService.class);
  29     controller = new RestController(service);
  30   }
  31
  32
  33   @Test
  34   @DisplayName("Data successfully fetched from remote-server")
  35   void testResponseOK()
  36   {
  37     when(service.getRemoteText("foo")).thenReturn(Mono.just("bar"));
  38
  39     Mono<String> result = controller.fetch("foo");
  40
  41     StepVerifier
  42         .create(result)
  43         .expectNext("bar")
  44         .expectComplete()
  45         .verify();
  46   }
  47
  48   @Test
  49   @DisplayName("Data not found on remote-server")
  50   void testResponseNotFoud()
  51   {
  52     when(service.getRemoteText("foo")).thenReturn(Mono.error(exception(404)));
  53
  54     Mono<String> result = controller.fetch("foo");
  55
  56     StepVerifier
  57         .create(result)
  58         .expectError(NotFound.class)
  59         .verify();
  60   }
  61
  62
  63   WebClientResponseException exception(int status)
  64   {
  65     return WebClientResponseException.create(status, "", null, null, null);
  66   }
  67 }