Improvements to window test doubles

[XbNz]

Continuing some work left from #422

@simonhamp there were some quirky HTTP client issues which I discovered once I took it for a spin in a real test suite for an app I'm working on. Fixed most of them, but we still need an HTTP fake to make it play nice. I was torn as to whether the test double should do the HTTP faking, or leave it up to the user. I opted for the latter. This can be documented.

Here's a general happy-path test snippet, if you'd like to update the docs with a testing section at some point:

 #[\PHPUnit\Framework\Attributes\Test]
public function it_opens_a_new_nativephp_ping_window(): void
{
    // Arrange
    Http::fake(); // Native PHP API URL should be provided to avoid faking everything else
    Window::fake();
    Window::alwaysReturnWindows([
        $mockWindow = Mockery::mock(WindowImplementation::class)->makePartial(),
    ]);

    $mockWindow->shouldReceive('route')->once()->with('ping')->andReturnSelf();
    $mockWindow->shouldReceive('showDevTools')->once()->with(false)->andReturnSelf();
    $mockWindow->shouldReceive('titleBarHiddenInset')->once()->andReturnSelf();
    $mockWindow->shouldReceive('transparent')->once()->andReturnSelf();
    $mockWindow->shouldReceive('height')->once()->with(500)->andReturnSelf();
    $mockWindow->shouldReceive('width')->once()->with(775)->andReturnSelf();
    $mockWindow->shouldReceive('minHeight')->once()->with(500)->andReturnSelf();
    $mockWindow->shouldReceive('minWidth')->once()->with(775)->andReturnSelf();

    // Act
    Livewire::test(Search::class)->call('openPing');

    // Assert
    Window::assertOpened(fn (string $windowId) => Str::startsWith($windowId, ['ping']));
}

The mocks are a little disgusting, so perhaps a test double for the window implementation – not just the manager – would be helpful in the future. I'll release more of these as I come across the use case.

[simonhamp]

This is super awesome! Thank you