test: add integration test for removing employee from project

src/test/java/de/szut/lf8_starter/integration/project/RemoveEmployeeFromProjectIntegrationTest.java

@@ -0,0 +1,78 @@
+package de.szut.lf8_starter.integration.project;
+
+import de.szut.lf8_starter.project.ProjectEntity;
+import de.szut.lf8_starter.project.ProjectRepository;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.*;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.RestTemplate;
+
+import java.time.LocalDate;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.delete;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@SpringBootTest
+@AutoConfigureMockMvc(addFilters = false)
+class RemoveEmployeeFromProjectIntegrationTest {
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Autowired
+    private RestTemplate restTemplate;
+
+    @Autowired
+    private ProjectRepository projectRepository;
+
+    @Test
+    void removeEmployeeFromProject() throws Exception {
+        ProjectEntity project = new ProjectEntity();
+        project.setComment("comment");
+        project.setContractor(1);
+        project.setContractorName("contractorName");
+        project.setEndDate(LocalDate.of(2024, 1, 1));
+        project.setLeadingEmployee(1);
+        project.setName("name");
+        project.setStartDate(LocalDate.of(2021, 1, 1));
+        project.setEmployees(List.of(1L, 2L, 3L, 312L));
+        this.projectRepository.save(project);
+
+
+        mockMvc.perform(delete("/projects/{projectId}/employees/{employeeId}", 1, 312)
+                        .header(HttpHeaders.AUTHORIZATION, getBearerToken())
+                        .contentType(MediaType.APPLICATION_JSON))
+                .andExpect(status().isNoContent());
+
+        ProjectEntity updatedProject = projectRepository.findById(1L).get();
+
+        assert !updatedProject.getEmployees().contains(312L);
+    }
+
+    private String getBearerToken() {
+        String url = "https://keycloak.szut.dev/auth/realms/szut/protocol/openid-connect/token";
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
+
+        MultiValueMap<String, String> map = new LinkedMultiValueMap<>();
+        map.add("grant_type", "password");
+        map.add("client_id", "employee-management-service");
+        map.add("username", "user");
+        map.add("password", "test");
+
+        HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<>(map, headers);
+
+        ResponseEntity<Map> response = this.restTemplate.exchange(url, HttpMethod.POST, request, Map.class);
+
+        return Objects.requireNonNull(response.getBody()).get("access_token").toString();
+    }
+}