extract auth test fakes

backend/tests/Fakes/FakeClock.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Tests\Fakes;
+
+use App\Auth\Clock;
+use DateTimeImmutable;
+use DateTimeZone;
+
+class FakeClock implements Clock
+{
+    public function now(): DateTimeImmutable
+    {
+        return new DateTimeImmutable('2026-05-18 12:00:00', new DateTimeZone('UTC'));
+    }
+}

backend/tests/Fakes/FakeHasher.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Tests\Fakes;
+
+use App\Auth\PasswordHasher;
+
+class FakeHasher implements PasswordHasher
+{
+    public function hash(string $password): string
+    {
+        return 'hashed-' . $password;
+    }
+
+    public function verify(string $password, string $hash): bool
+    {
+        return $hash === 'hashed-' . $password;
+    }
+}

backend/tests/Fakes/FakeTokenGenerator.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Tests\Fakes;
+
+use App\Auth\TokenGenerator;
+
+class FakeTokenGenerator implements TokenGenerator
+{
+    public function generate(): string
+    {
+        return 'fake-token-123';
+    }
+}

backend/tests/Unit/Auth/UseCases/AuthenticateUserTest.php

@@ -8,8 +8,10 @@ use App\Auth\UseCases\AuthenticateUser\AuthenticateUserRequest;
 use App\Exceptions\BadRequestException;
 use App\Exceptions\UnauthorizedException;
 use App\Shared\ValueObject\EmailAddress;
+use App\User\CreateUserDto;
 use App\User\User;
 use PHPUnit\Framework\TestCase;
+use Tests\Fakes\FakeHasher;
 use Tests\Fakes\FakeUserRepository;
 
 class AuthenticateUserTest extends TestCase
@@ -21,17 +23,7 @@ class AuthenticateUserTest extends TestCase
     protected function setUp(): void
     {
         $this->userRepo = new FakeUserRepository();
-        $this->hasher = new class implements PasswordHasher {
+        $this->hasher = new FakeHasher();
-            public function hash(string $password): string
-            {
-                return 'hashed-' . $password;
-            }
-
-            public function verify(string $password, string $hash): bool
-            {
-                return $hash === 'hashed-' . $password;
-            }
-        };
 
         $this->authenticateUser = new AuthenticateUser($this->userRepo, $this->hasher);
     }
@@ -39,7 +31,7 @@ class AuthenticateUserTest extends TestCase
     public function testAuthenticatesValidUser(): void
     {
         $email = new EmailAddress('user@example.com');
-        $this->userRepo->create(new \App\User\CreateUserDto($email, 'hashed-secret'));
+        $this->userRepo->create(new CreateUserDto($email, 'hashed-secret'));
 
         $request = new AuthenticateUserRequest('user@example.com', 'secret');
         $user = $this->authenticateUser->execute($request);
@@ -78,7 +70,7 @@ class AuthenticateUserTest extends TestCase
     public function testThrowsWhenPasswordIncorrect(): void
     {
         $email = new EmailAddress('user@example.com');
-        $this->userRepo->create(new \App\User\CreateUserDto($email, 'hashed-secret'));
+        $this->userRepo->create(new CreateUserDto($email, 'hashed-secret'));
 
         $this->expectException(UnauthorizedException::class);
         $this->expectExceptionMessage('invalid credentials');

backend/tests/Unit/Auth/UseCases/CreateSessionTest.php

@@ -3,36 +3,26 @@
 namespace Tests\Unit\Auth\UseCases;
 
 use App\Auth\Clock;
-use App\Auth\TokenGenerator;
 use App\Auth\UseCases\CreateSession\CreateSession;
 use App\Shared\ValueObject\EmailAddress;
 use App\User\User;
-use DateTimeImmutable;
 use PHPUnit\Framework\TestCase;
+use Tests\Fakes\FakeClock;
 use Tests\Fakes\FakeSessionRepository;
+use Tests\Fakes\FakeTokenGenerator;
 
 class CreateSessionTest extends TestCase
 {
     private FakeSessionRepository $sessionRepo;
-    private TokenGenerator $tokenGenerator;
+    private FakeTokenGenerator $tokenGenerator;
     private Clock $clock;
     private CreateSession $createSession;
 
     protected function setUp(): void
     {
         $this->sessionRepo = new FakeSessionRepository();
-        $this->tokenGenerator = new class implements TokenGenerator {
+        $this->tokenGenerator = new FakeTokenGenerator();
-            public function generate(): string
+        $this->clock = new FakeClock();
-            {
-                return 'fake-token-123';
-            }
-        };
-        $this->clock = new class implements Clock {
-            public function now(): DateTimeImmutable
-            {
-                return new DateTimeImmutable('2026-05-18 12:00:00', new \DateTimeZone('UTC'));
-            }
-        };
 
         $this->createSession = new CreateSession($this->sessionRepo, $this->tokenGenerator, $this->clock);
     }

backend/tests/Unit/Auth/UseCases/LogoutTest.php

@@ -2,6 +2,7 @@
 
 namespace Tests\Unit\Auth\UseCases;
 
+use App\Auth\CreateSessionDto;
 use App\Auth\UseCases\Logout\Logout;
 use App\Shared\ValueObject\EmailAddress;
 use App\User\User;
@@ -24,7 +25,7 @@ class LogoutTest extends TestCase
         $email = new EmailAddress('user@example.com');
         $user = new User(1, $email, 'hashed-password');
 
-        $session = $this->sessionRepo->create(new \App\Auth\CreateSessionDto(
+        $session = $this->sessionRepo->create(new CreateSessionDto(
             'session-token',
             $user,
             new \DateTimeImmutable(),