Implement queue assertion helpers

[DenTray]

Description

What needs to be done?

• Implement the methods assertQueueEqualsFixture and assertQueueEmpty in TestingTrait to centralize and reuse queue-related test assertions.
• The methods are:

public function assertQueueEqualsFixture(string $fixture, bool $exportMode = false): void

{

$actualData = [];

foreach (Queue::pushedJobs() as $namespace => $jobs) {

$actualData[$namespace] = Arr::map($jobs, fn ($job) => $this->getObjectAttributes($job['job']));

}

$this->assertEqualsFixture("queue_states/{$fixture}", $actualData, $exportMode);

}

public function assertQueueEmpty(): void

{

$this->assertEquals([], Queue::pushedJobs(), 'Failed assert that faked queue is empty.');

}

Expected Outcome

• Queue assertion methods are available within the laravel-helpers package for broader usage.
• Tests using these assertions can adopt the centralized implementations without duplication.

Verification Scenarios

1. Confirm the methods exist and are callable from laravel-helpers.
2. Run tests that use these assertions and verify they behave identically to previous implementations.
3. Validate documentation or comments reflect the new locations and usage.