詳解springboot WebTestClient的使用

package com.example.webclientdemo;

import com.example.webclientdemo.payload.GithubRepo;
import com.example.webclientdemo.payload.RepoRequest;
import org.assertj.core.api.Assertions;
import org.junit.FixMethodOrder;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.MethodSorters;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.reactive.server.WebTestClient;
import reactor.core.publisher.Mono;


@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class WebclientDemoApplicationTests {

  @Autowired
  private WebTestClient webTestClient;

  @Test
  public void test1CreateGithubRepository() {
    RepoRequest repoRequest = new RepoRequest("test-webclient-repository", "Repository created for testing WebClient");

    webTestClient.post().uri("/api/repos")
        .contentType(MediaType.APPLICATION_JSON_UTF8)
        .accept(MediaType.APPLICATION_JSON_UTF8)
        .body(Mono.just(repoRequest), RepoRequest.class)
        .exchange()
        .expectStatus().isOk()
        .expectHeader().contentType(MediaType.APPLICATION_JSON_UTF8)
        .expectBody()
        .jsonPath("$.name").isNotEmpty()
        .jsonPath("$.name").isEqualTo("test-webclient-repository");
  }

  @Test
  public void test2GetAllGithubRepositories() {
    webTestClient.get().uri("/api/repos")
        .accept(MediaType.APPLICATION_JSON_UTF8)
        .exchange()
        .expectStatus().isOk()
        .expectHeader().contentType(MediaType.APPLICATION_JSON_UTF8)
        .expectBodyList(GithubRepo.class);
  }

  @Test
  public void test3GetSingleGithubRepository() {
    webTestClient.get()
        .uri("/api/repos/{repo}", "test-webclient-repository")
        .exchange()
        .expectStatus().isOk()
        .expectBody()
        .consumeWith(response ->
            Assertions.assertThat(response.getResponseBody()).isNotNull());
  }

  @Test
  public void test4EditGithubRepository() {
    RepoRequest newRepoDetails = new RepoRequest("updated-webclient-repository", "Updated name and description");
    webTestClient.patch()
        .uri("/api/repos/{repo}", "test-webclient-repository")
        .contentType(MediaType.APPLICATION_JSON_UTF8)
        .accept(MediaType.APPLICATION_JSON_UTF8)
        .body(Mono.just(newRepoDetails), RepoRequest.class)
        .exchange()
        .expectStatus().isOk()
        .expectHeader().contentType(MediaType.APPLICATION_JSON_UTF8)
        .expectBody()
        .jsonPath("$.name").isEqualTo("updated-webclient-repository");
  }

  @Test
  public void test5DeleteGithubRepository() {
    webTestClient.delete()
        .uri("/api/repos/{repo}", "updated-webclient-repository")
        .exchange()
        .expectStatus().isOk();
  }
}