feat: add authentication helper and project findAll test

src/main/java/de/szut/lf8_starter/project/ProjectRepository.java

@@ -1,6 +1,8 @@
 package de.szut.lf8_starter.project;
 
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
 
+@Repository
 public interface ProjectRepository extends JpaRepository<ProjectEntity, Long> {
 }

src/main/java/de/szut/lf8_starter/project/utils/AuthenticationHelper.java

@@ -0,0 +1,35 @@
+package de.szut.lf8_starter.project.utils;
+
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+
+public interface AuthenticationHelper {
+
+    default String getAuthenticationToken(TestRestTemplate restTemplate) {
+        MultiValueMap<String, String> authParams = new LinkedMultiValueMap<>();
+        authParams.add("grant_type", "password");
+        authParams.add("client_id", "employee-management-service");
+        authParams.add("username", "user");
+        authParams.add("password", "test");
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.set("Content-Type", "application/x-www-form-urlencoded");
+
+        HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<>(authParams, headers);
+        ResponseEntity<String> authResponse = restTemplate.postForEntity("https://keycloak.szut.dev/auth/realms/szut/protocol/openid-connect/token", request, String.class);
+
+        // Extract the token from the response
+        String responseBody = authResponse.getBody();
+        assert responseBody != null;
+
+        return "Bearer " + extractToken(responseBody);
+    }
+
+    private String extractToken(String responseBody) {
+        return responseBody.substring(responseBody.indexOf("access_token\":\"") + 15, responseBody.indexOf("\"", responseBody.indexOf("access_token\":\"") + 15));
+    }
+}

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

@@ -0,0 +1,61 @@
+package de.szut.lf8_starter.integration.project;
+
+import de.szut.lf8_starter.project.ProjectEntity;
+import de.szut.lf8_starter.project.ProjectRepository;
+import de.szut.lf8_starter.project.utils.AuthenticationHelper;
+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.boot.test.web.client.TestRestTemplate;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.time.LocalDate;
+import java.util.List;
+
+import static org.hamcrest.collection.IsCollectionWithSize.hasSize;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@AutoConfigureMockMvc
+public class ProjectFindAll implements AuthenticationHelper {
+    @Autowired
+    private ProjectRepository projectRepository;
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Autowired
+    private TestRestTemplate restTemplate;
+
+    @Test
+    void findAllProjects() throws Exception {
+        var project = new ProjectEntity();
+        project.setId(1);
+        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));
+        this.projectRepository.save(project);
+
+        this.mockMvc.perform(get("/projects").header("Authorization", getAuthenticationToken(restTemplate)))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$", hasSize(1)))
+                .andExpect(jsonPath("$[0].id").value(1))
+                .andExpect(jsonPath("$[0].comment").value("comment"))
+                .andExpect(jsonPath("$[0].contractor").value(1))
+                .andExpect(jsonPath("$[0].contractorName").value("contractorName"))
+                .andExpect(jsonPath("$[0].endDate").value("2024-01-01"))
+                .andExpect(jsonPath("$[0].leadingEmployee").value(1))
+                .andExpect(jsonPath("$[0].name").value("name"))
+                .andExpect(jsonPath("$[0].startDate").value("2021-01-01"))
+                .andExpect(jsonPath("$[0].employees").isArray())
+                .andExpect(jsonPath("$[0].employees", hasSize(3)));
+    }
+}