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

   1 package de.juplo.demo;
   2
   3
   4 import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
   5 import org.junit.jupiter.api.BeforeEach;
   6 import org.junit.jupiter.api.DisplayName;
   7 import org.junit.jupiter.api.Test;
   8 import org.junit.jupiter.api.extension.ExtendWith;
   9 import org.mockito.ArgumentCaptor;
  10 import static org.mockito.ArgumentMatchers.eq;
  11 import static org.mockito.Mockito.verify;
  12 import static org.mockito.Mockito.when;
  13 import org.springframework.boot.test.mock.mockito.MockBean;
  14 import org.springframework.test.context.junit.jupiter.SpringExtension;
  15 import org.springframework.ui.Model;
  16 import org.springframework.web.reactive.function.client.WebClientResponseException;
  17 import reactor.core.publisher.Mono;
  18 import reactor.test.StepVerifier;
  19
  20
  21 /**
  22  * Unit-Test for class {@link RemoteContentHtmlController}.
  23  * @author Kai Moritz
  24  */
  25 @ExtendWith(SpringExtension.class)
  26 public class HtmlControllerTest
  27 {
  28   HtmlController controller;
  29
  30   @MockBean
  31   RemoteContentService service;
  32   @MockBean
  33   Model model;
  34
  35
  36   @BeforeEach
  37   void setUp()
  38   {
  39     controller = new HtmlController(service);
  40   }
  41
  42
  43   @Test
  44   @DisplayName("Data successfully fetched from remote-server")
  45   void testOK()
  46   {
  47     when(service.getRemoteText("foo")).thenReturn(Mono.just("bar"));
  48
  49     String result = controller.fetch(model, "foo");
  50
  51     assertThat(result).isEqualTo("home");
  52     ArgumentCaptor<Mono<String>> captor = ArgumentCaptor.forClass(Mono.class);
  53     verify(model).addAttribute(eq("text"), captor.capture());
  54     StepVerifier
  55         .create(captor.getValue())
  56         .expectNext("bar")
  57         .expectComplete()
  58         .verify();
  59   }
  60
  61   @Test
  62   @DisplayName("Data not found on remote-server")
  63   void testNotFoud()
  64   {
  65     Mono<String> mono = Mono.error(WebClientResponseException.create(404, "", null, null, null));
  66     when(service.getRemoteText("foo")).thenReturn(mono);
  67
  68     String result = controller.fetch(model, "foo");
  69
  70     assertThat(result).isEqualTo("home");
  71     ArgumentCaptor<Mono<String>> captor = ArgumentCaptor.forClass(Mono.class);
  72     verify(model).addAttribute(eq("text"), captor.capture());
  73     StepVerifier
  74         .create(captor.getValue())
  75         .expectNext("404 ")
  76         .expectComplete()
  77         .verify();
  78   }
  79 }