Write a focused PHPUnit test through the public service API and mock only an external dependency: ~~~php final class UserServiceTest extends TestCase { public function testFindsUserById(): void { $repository = $this->createMock(UserRepository::class); $user = new User('u-1'); $repository->expects($this->once()) ->method('findById') ->with('u-1') ->willReturn($user); self::assertSame($user, (new UserService($repository))->find('u-1')); } } ~~~ Keep the test independent and repeatable, and use ...
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Write a focused PHPUnit test through the public service API and mock only an external dependency:
~~~php
final class UserServiceTest extends TestCase
{
public function testFindsUserById(): void
{
$repository = $this->createMock(UserRepository::class);
$user = new User('u-1');
$repository->expects($this->once())
->method('findById')
->with('u-1')
->willReturn($user);
self::assertSame($user, (new UserService($repository))->find('u-1'));
}
}
~~~
Keep the test independent and repeatable, and use assertSame when type identity matters.
