Child process test double

[XbNz]

• ChildProcess::class now implements Contracts\ChildProcess::class interface
• Facades\ChildProcess::fake() swaps implementations with a test double concrete
• Implement new binding in NativeServiceProvider::class
• Implement Contracts/ChildProcess::class methods, mimicking that of the implementation
• Implement ChildProcessFake::class with assertion helpers
• Test that ChildProcessFake::class assertions work

Working example of test flow:

#[\PHPUnit\Framework\Attributes\Test]
public function submitting_form_results_in_icmp_ping_action_being_hit_with_requested_ip_address(): void
{
    // Arrange
    ChildProcess::fake();

    // Act
    $response = Livewire::test(Ping::class)
        ->set('target', '1.1.1.1')
        ->set('interval', 1000)
        ->call('ping');

    // Assert
    $this->assertDatabaseHas(IpAddress::class, [
        'ip' => '1.1.1.1',
    ]);

    ChildProcess::assertGet('ping-worker');
    ChildProcess::assertMessage(fn (string $message, string|null $alias) => $message === 'target-add:1.1.1.1::1000' && $alias === null);
}

[simonhamp]

Incredible stuff! Thank you