Add MockMvc tests

src/test/java/com/pedro/rest/controller/EmployeeControllerTest.java

@@ -0,0 +1,105 @@
+package com.pedro.rest.controller;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.pedro.rest.model.Employee;
+import com.pedro.rest.service.EmployeeService;
+import org.junit.jupiter.api.BeforeEach;
+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.hateoas.MediaTypes;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+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.request.MockMvcRequestBuilders.put;
+import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+@SpringBootTest
+@AutoConfigureMockMvc
+class EmployeeControllerTest {
+
+    @Autowired
+    private EmployeeService service;
+
+    @Autowired
+    private ObjectMapper objectMapper;
+
+    private MockMvc mockMvc;
+
+    @BeforeEach
+    void setUp() {
+        mockMvc = MockMvcBuilders.standaloneSetup(new EmployeeController(service)).build();
+    }
+
+    @Test
+    void getAll() throws Exception {
+        var request = get("/employees").header("Accept", MediaTypes.HAL_JSON);
+
+        mockMvc.perform(request)
+                .andDo(print())
+                .andExpect(status().isOk())
+                .andExpect(content().contentType(MediaTypes.HAL_JSON))
+                .andExpect(jsonPath("$.content.length()").isNotEmpty());
+    }
+
+    @Test
+    void getById() throws Exception {
+        var request = get("/employees/1");
+
+        mockMvc.perform(request)
+                .andDo(print())
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.firstName").value("Bilbo"))
+                .andExpect(jsonPath("$.links").isNotEmpty())
+                .andExpect(jsonPath("$.links.length()").value(2))
+                .andExpect(jsonPath("$.links[0].href").value("http://localhost/employees/1"));
+    }
+
+    @Test
+    void create() throws Exception {
+        var employee = new Employee("test", "case", "test-role");
+        var body = objectMapper.writeValueAsString(employee);
+
+        var request = post("/employees")
+                .contentType(MediaType.APPLICATION_JSON)
+                .content(body);
+
+        mockMvc.perform(request)
+                .andDo(print())
+                .andExpect(status().isCreated())
+                .andExpect(header().exists("Location"))
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andExpect(jsonPath("$.id").value(3))
+                .andExpect(jsonPath("$.name").value("test case"));
+    }
+
+    @Test
+    void update() throws Exception {
+        var employee = new Employee("Bilbo", "[Updated]", "burglar");
+        var body = objectMapper.writeValueAsString(employee);
+
+        var request = put("/employees/{id}", 1L)
+                .contentType(MediaType.APPLICATION_JSON)
+                .content(body);
+
+        mockMvc.perform(request)
+                .andDo(print())
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andExpect(jsonPath("$.name").value("Bilbo [Updated]"))
+                .andExpect(jsonPath("$.lastName").value("[Updated]"));
+    }
+
+    @Test
+    void destroy() throws Exception {
+        var request = delete("/employees/{id}", 1L);
+        mockMvc.perform(request)
+                .andExpect(status().isNoContent())
+                .andExpect(content().string(""));
+    }
+}