Mock Auth::user() in Laravel 6

I have this code:

// ...
Passport::actingAs($this->user);
$mock = Mockery::mock(User::class);
$mock->shouldReceive('myMethodName')->andReturn(157);
Auth::shouldReceive('user')->once()->andReturn($mock);

If I call

Auth::user()->myMethodName(); // It returns 157

But if I call (or another one method of Auth)

  Auth::id();
  // it throws Mockery\Exception\BadMethodCallException : Method Mockery_2_Illuminate_Auth_AuthManager::id() does not exist on this mock object