TenantAtlas/tests/Unit/MicrosoftGraphClientRetryPolicyTest.php

<?php

use App\Services\Graph\MicrosoftGraphClient;
use Illuminate\Support\Facades\Http;

it('retries 429 responses using the shared retry policy', function () {
    config([
        'graph.base_url' => 'https://graph.microsoft.com',
        'graph.version' => 'beta',
        'graph.retry.times' => 2,
        'graph.retry.sleep' => 0,
    ]);

    Http::fakeSequence()
        ->push(['error' => ['code' => 'TooManyRequests', 'message' => 'throttled']], 429)
        ->push(['value' => []], 200);

    /** @var MicrosoftGraphClient $client */
    $client = app(MicrosoftGraphClient::class);

    $response = $client->request('GET', '/deviceManagement/managedDevices', [
        'access_token' => 'test-access-token',
    ]);

    expect($response->success)->toBeTrue();

    Http::assertSentCount(2);
});