Java tutorial
/* * Copyright 2015-2017 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package io.pivotal.strepsirrhini.chaosloris.web; import io.pivotal.strepsirrhini.chaosloris.data.Application; import io.pivotal.strepsirrhini.chaosloris.data.ApplicationRepository; import io.pivotal.strepsirrhini.chaosloris.data.ChaosRepository; import org.cloudfoundry.client.CloudFoundryClient; import org.junit.Test; import org.junit.runner.RunWith; import org.mockito.Answers; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest; import org.springframework.boot.test.context.TestConfiguration; import org.springframework.boot.test.mock.mockito.MockBean; import org.springframework.context.annotation.Bean; import org.springframework.dao.DataIntegrityViolationException; import org.springframework.dao.EmptyResultDataAccessException; import org.springframework.data.domain.PageImpl; import org.springframework.data.domain.PageRequest; import org.springframework.data.web.config.EnableSpringDataWebSupport; import org.springframework.test.context.junit4.SpringRunner; import org.springframework.test.web.servlet.MockMvc; import javax.persistence.EntityNotFoundException; import java.util.Collections; import java.util.UUID; import static io.pivotal.strepsirrhini.chaosloris.JsonTestUtilities.asJson; import static org.mockito.Mockito.doThrow; import static org.mockito.Mockito.verify; import static org.mockito.Mockito.when; import static org.springframework.hateoas.MediaTypes.HAL_JSON; import static org.springframework.http.MediaType.APPLICATION_JSON; import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.delete; import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get; import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post; import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.header; import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath; import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status; @RunWith(SpringRunner.class) @WebMvcTest(ApplicationController.class) public class ApplicationControllerTest { @MockBean(answer = Answers.RETURNS_SMART_NULLS) private ApplicationRepository applicationRepository; @MockBean(answer = Answers.RETURNS_SMART_NULLS) private ChaosRepository chaosRepository; @MockBean(answer = Answers.RETURNS_SMART_NULLS) private CloudFoundryClient cloudFoundryClient; @Autowired private MockMvc mockMvc; @Test public void create() throws Exception { UUID applicationId = UUID.randomUUID(); when(this.applicationRepository.saveAndFlush(new Application(applicationId))).then(invocation -> { Application application = invocation.getArgumentAt(0, Application.class); application.setId(1L); return application; }); this.mockMvc .perform(post("/applications").contentType(APPLICATION_JSON) .content(asJson(Collections.singletonMap("applicationId", applicationId.toString())))) .andExpect(status().isCreated()) .andExpect(header().string("Location", "http://localhost/applications/1")); } @SuppressWarnings("unchecked") @Test public void createDuplicateApplicationId() throws Exception { UUID applicationId = UUID.randomUUID(); when(this.applicationRepository.saveAndFlush(new Application(applicationId))) .thenThrow(DataIntegrityViolationException.class); this.mockMvc .perform(post("/applications").contentType(APPLICATION_JSON) .content(asJson(Collections.singletonMap("applicationId", applicationId.toString())))) .andExpect(status().isBadRequest()); } @Test public void createNullApplicationId() throws Exception { this.mockMvc .perform( post("/applications").contentType(APPLICATION_JSON).content(asJson(Collections.emptyMap()))) .andExpect(status().isBadRequest()); } @Test public void del() throws Exception { this.mockMvc.perform(delete("/applications/{id}", 1L)).andExpect(status().isNoContent()); verify(this.applicationRepository).delete(1L); } @Test public void deleteDoesNotExist() throws Exception { doThrow(EmptyResultDataAccessException.class).when(this.applicationRepository).delete(1L); this.mockMvc.perform(delete("/applications/{id}", 1L)).andExpect(status().isNotFound()); } @Test public void list() throws Exception { Application application = new Application(UUID.randomUUID()); application.setId(1L); when(this.applicationRepository.findAll(new PageRequest(0, 20))) .thenReturn(new PageImpl<>(Collections.singletonList(application))); this.mockMvc.perform(get("/applications").accept(HAL_JSON)).andExpect(status().isOk()) .andExpect(jsonPath("$.page").exists()).andExpect(jsonPath("$._embedded.applications").exists()) .andExpect(jsonPath("$._links").exists()); } @Test public void read() throws Exception { UUID applicationId = UUID.randomUUID(); Application application = new Application(applicationId); application.setId(1L); when(this.applicationRepository.getOne(application.getId())).thenReturn(application); this.mockMvc.perform(get("/applications/{id}", application.getId()).accept(HAL_JSON)) .andExpect(status().isOk()).andExpect(jsonPath("$.applicationId").value(applicationId.toString())) .andExpect(jsonPath("$._links.self").exists()); } @SuppressWarnings("unchecked") @Test public void readDoesNotExist() throws Exception { when(this.applicationRepository.getOne(1L)).thenThrow(EntityNotFoundException.class); this.mockMvc.perform(get("/applications/{id}", 1L).accept(HAL_JSON)).andExpect(status().isNotFound()); } @EnableSpringDataWebSupport @TestConfiguration static class AdditionalConfiguration { @Bean ApplicationResourceAssembler applicationResourceAssembler(ChaosRepository chaosRepository) { return new ApplicationResourceAssembler(chaosRepository); } } }