feat(test): init test auth

tests/Unit/Auth/AuthenticationTest.php

@@ -0,0 +1,59 @@
+<?php
+
+use App\Actions\Fortify\LoginUser;
+use function Pest\Laravel\post;
+
+
+it('logs in a user with MD5 password', function () {
+    $userInfo = [
+        'username' => 'testuser',
+        'password' => 'password',
+    ];
+
+    $response = post(
+        '/login',
+        ['username' => $userInfo['username'], 'password' => $userInfo['password']],
+        ['Accept' => 'application/json']
+    );
+
+    $response->assertStatus(200);
+
+    $data = $response->json()['data'];
+
+    expect($data['username'])->toBe($userInfo['password']);
+});
+
+it('logs in a normal user with hashed password', function () {
+    // Arrange
+    $request = (object)['username' => 'testestest', 'password' => 'testestest'];
+
+    // Act
+    $result = LoginUser::login($request);
+
+    // Assert
+    expect($result)->toBe($this->user);
+});
+
+it('returns null for non-existent user', function () {
+    // Arrange
+    $request = (object)['username' => 'nonexistent', 'password' => 'password'];
+    $this->userMock->shouldReceive('where->first')->andReturn(null);
+
+    // Act
+    $result = LoginUser::login($request);
+
+    // Assert
+    expect($result)->toBeNull();
+});
+
+it('returns password error for existent user', function () {
+    // Arrange
+    $request = (object)['username' => 'testestest', 'password' => 'balaclava'];
+    $this->userMock->shouldReceive('where->first')->andReturn(null);
+
+    // Act
+    $result = LoginUser::login($request);
+
+    // Assert
+    expect($result)->toBeNull();
+});