test: fix exclusions and add auth sign-up test cases

issue #46

java-api/pom.xml

@@ -263,15 +263,10 @@
           <skip>${jacoco.skip}</skip>
           <excludes>
             <exclude>**/config/**</exclude>
-            <exclude>**/dto/**</exclude>
-            <exclude>**/entity/**</exclude>
-            <exclude>**/exception/**</exclude>
             <exclude>**/filter/**</exclude>
-            <exclude>**/interceptor/**</exclude>
-            <exclude>**/response/**</exclude>
             <exclude>**/*$*Builder*</exclude>
             <exclude>**/RestExceptionEndpoint.*</exclude>
-            <exclude>**/BackendStartApiApplication.*</exclude>
+            <exclude>**/JavaApiApiApplication.*</exclude>
           </excludes>
         </configuration>
         <executions>

java-api/src/main/java/br/com/tasknoteapp/java_api/controller/AuthenticationController.java

@@ -55,7 +55,7 @@ public class AuthenticationController {
       })
   public ResponseEntity<JwtAuthenticationResponse> signUp(
       @RequestBody @Valid LoginRequest loginRequest) {
-    String token = authService.create(loginRequest);
+    String token = authService.signUpNewUser(loginRequest);
     return ResponseEntity.status(HttpStatus.CREATED).body(new JwtAuthenticationResponse(token));
   }
 
@@ -86,7 +86,7 @@ public class AuthenticationController {
             content = @Content(schema = @Schema(implementation = Void.class)))
       })
   public JwtAuthenticationResponse signIn(@RequestBody @Valid LoginRequest loginRequest) {
-    String token = authService.signin(loginRequest);
+    String token = authService.signInUser(loginRequest);
     return new JwtAuthenticationResponse(token);
-  }  
+  }
 }

java-api/src/main/java/br/com/tasknoteapp/java_api/controller/RestExceptionController.java

@@ -0,0 +1,17 @@
+package br.com.tasknoteapp.java_api.controller;
+
+import br.com.tasknoteapp.java_api.response.ValidationExceptionResponse;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@RestControllerAdvice
+public class RestExceptionController {
+
+  @ExceptionHandler(MethodArgumentNotValidException.class)
+  ResponseEntity<ValidationExceptionResponse> handleValidationException(
+      MethodArgumentNotValidException ex) {
+    return ResponseEntity.badRequest().body(new ValidationExceptionResponse(ex.getFieldErrors()));
+  }
+}

java-api/src/main/java/br/com/tasknoteapp/java_api/response/FieldIssueResponse.java

@@ -0,0 +1,6 @@
+package br.com.tasknoteapp.java_api.response;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+@Schema(description = "An object with fields name and the respective error massages")
+record FieldIssueResponse(String fieldName, String fieldMessage) {}

java-api/src/main/java/br/com/tasknoteapp/java_api/response/ValidationExceptionResponse.java

@@ -0,0 +1,34 @@
+package br.com.tasknoteapp.java_api.response;
+
+import java.util.List;
+
+import org.springframework.validation.FieldError;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Getter;
+
+@Getter
+@Schema(description = "An object containing the error message and the invalid fields")
+public class ValidationExceptionResponse {
+  
+  private static final String MESSAGE_TEMPLATE = "%d field(s) with validation problems!";
+
+  @Schema(description = "The error message")
+  private final String errorMessage;
+
+  @Schema(description = "An array of 'FieldIssue' with the invalid fields")
+  private final List<FieldIssueResponse> fields;
+
+  /**
+   * The sole constructor of this class.
+   *
+   * @param errors all the validation problems to be listed as a response
+   */
+  public ValidationExceptionResponse(List<FieldError> errors) {
+    this.fields =
+        errors.stream()
+            .map(error -> new FieldIssueResponse(error.getField(), error.getDefaultMessage()))
+            .toList();
+    this.errorMessage = String.format(MESSAGE_TEMPLATE, fields.size());
+  }
+}

java-api/src/main/java/br/com/tasknoteapp/java_api/service/AuthService.java

@@ -3,7 +3,6 @@ package br.com.tasknoteapp.java_api.service;
 import br.com.tasknoteapp.java_api.entity.UserEntity;
 import br.com.tasknoteapp.java_api.request.LoginRequest;
 import br.com.tasknoteapp.java_api.response.UserResponse;
-
 import java.util.List;
 import java.util.Optional;
 import org.springframework.security.core.userdetails.User;
@@ -17,7 +16,7 @@ public interface AuthService {
    * @param login User details with email and password.
    * @return Token
    */
-  public String create(LoginRequest login);
+  public String signUpNewUser(LoginRequest login);
 
   /**
    * Find a user by email in the database.
@@ -41,7 +40,7 @@ public interface AuthService {
    * @param login User details with email and password.
    * @return Token
    */
-  public String signin(LoginRequest login);
+  public String signInUser(LoginRequest login);
 
   /**
    * Get all registered users.

java-api/src/main/java/br/com/tasknoteapp/java_api/service/impl/AuthServiceImpl.java

@@ -46,8 +46,8 @@ class AuthServiceImpl implements AuthService {
    * @return Token
    */
   @Override
-  public String create(LoginRequest login) {
-    log.info("Creating user! {}", login.email());
+  public String signUpNewUser(LoginRequest login) {
+    log.info("Signing up new user! {}", login.email());
 
     if (findByEmail(login.email()).isPresent()) {
       throw new UserAlreadyExistsException();
@@ -105,7 +105,7 @@ class AuthServiceImpl implements AuthService {
    * @return Token
    */
   @Override
-  public String signin(LoginRequest login) {
+  public String signInUser(LoginRequest login) {
     log.info("Signing in user! {}", login.email());
 
     Optional<UserEntity> user = findByEmail(login.email());

java-api/src/test/java/br/com/tasknoteapp/java_api/controller/AuthenticationControllerTest.java

@@ -2,6 +2,7 @@ package br.com.tasknoteapp.java_api.controller;
 
 import static org.mockito.Mockito.when;
 import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.csrf;
+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.MockMvcResultMatchers.jsonPath;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
@@ -32,7 +33,7 @@ class AuthenticationControllerTest {
     LoginRequest request = new LoginRequest("user@domain.com", "abcde123456");
     final String token = "xaxbxcxdx1x2x3A@";
 
-    when(authService.create(request)).thenReturn(token);
+    when(authService.signUpNewUser(request)).thenReturn(token);
 
     String jsonString =
         """
@@ -60,7 +61,7 @@ class AuthenticationControllerTest {
     LoginRequest request = new LoginRequest("user@domain..com", "abcde123456");
     final String token = "xaxbxcxdx1x2x3@A";
 
-    when(authService.create(request)).thenReturn(token);
+    when(authService.signUpNewUser(request)).thenReturn(token);
 
     String jsonString =
         """
@@ -86,7 +87,7 @@ class AuthenticationControllerTest {
   void signup_userAlreadyExists_shouldFail() throws Exception {
     LoginRequest request = new LoginRequest("user@domain.com", "abcde123456");
 
-    when(authService.create(request)).thenThrow(new UserAlreadyExistsException());
+    when(authService.signUpNewUser(request)).thenThrow(new UserAlreadyExistsException());
 
     String jsonString =
         """
@@ -106,4 +107,32 @@ class AuthenticationControllerTest {
         .andExpect(status().isBadRequest())
         .andReturn();
   }
+
+  @Test
+  @DisplayName("Sign in happy path should succeed")
+  void signin_happyPath_shouldSucceed() throws Exception {
+    LoginRequest request = new LoginRequest("user@domain.com", "abcde123456");
+    final String token = "xaxbxcxdx1x2x3A@";
+
+    when(authService.signInUser(request)).thenReturn(token);
+
+    String jsonString =
+        """
+        {
+          "email": "user@domain.com",
+          "password": "abcde123456"
+        }
+        """;
+
+    mockMvc
+        .perform(
+            post("/auth/sign-in")
+                .with(csrf().asHeader())
+                .header("Content-Type", MediaType.APPLICATION_JSON_VALUE)
+                .accept(MediaType.APPLICATION_JSON)
+                .content(jsonString))
+        .andExpect(status().isOk())
+        .andExpect(jsonPath("$.token").value(token))
+        .andReturn();
+  }
 }