test auth contracts

backend/tests/Fakes/FakePasswordHasher.php

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

backend/tests/Fakes/FakeTokenGenerator.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Tests\Fakes;
+
+use App\Auth\TokenGenerator;
+use RuntimeException;
+
+class FakeTokenGenerator implements TokenGenerator
+{
+    private int $callCount = 0;
+
+    /**
+     * @param  string[]  $tokens
+     */
+    public function __construct(private array $tokens) {}
+
+    public function generate(): string
+    {
+        if ($this->callCount >= count($this->tokens)) {
+            throw new RuntimeException('FakeTokenGenerator exhausted');
+        }
+
+        $token = $this->tokens[$this->callCount];
+        $this->callCount++;
+
+        return $token;
+    }
+}

backend/tests/Fakes/FakeUserRepository.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace Tests\Fakes;
+
+use App\Shared\ValueObject\EmailAddress;
+use App\User\CreateUserDto;
+use App\User\User;
+use App\User\UserRepository;
+
+class FakeUserRepository implements UserRepository
+{
+    /**
+     * @var array<int, User>
+     */
+    private array $users = [];
+
+    public function create(CreateUserDto $dto): User
+    {
+        $id = count($this->users) + 1;
+        $user = new User(
+            id: $id,
+            email: $dto->email,
+            passwordHash: $dto->passwordHash,
+        );
+        $this->users[$id] = $user;
+
+        return $this->copy($user);
+    }
+
+    public function find(int $id): ?User
+    {
+        $user = $this->users[$id] ?? null;
+
+        return $user === null ? null : $this->copy($user);
+    }
+
+    public function findByEmail(EmailAddress $email): ?User
+    {
+        foreach ($this->users as $user) {
+            if ($user->getEmail()->value() === $email->value()) {
+                return $this->copy($user);
+            }
+        }
+
+        return null;
+    }
+
+    private function copy(User $user): User
+    {
+        return new User(
+            id: $user->getId(),
+            email: $user->getEmail(),
+            passwordHash: $user->getPasswordHash(),
+        );
+    }
+}