test(github-models-cli): Add test for ProcessFailedException

- Introduce a new test to verify that `ProcessFailedException` is thrown
- Set configuration for `github_models_cli.binary` before running the test
- Ensure correct handling of error generation with the `GeneratorManager`
- This test validates error handling for the GitHub models CLI generator

tests/Unit/Generators/GithubModelsCliGeneratorTest.php

@@ -0,0 +1,30 @@
+<?php
+
+/** @noinspection AnonymousFunctionStaticInspection */
+/** @noinspection JsonEncodingApiUsageInspection */
+/** @noinspection NullPointerExceptionInspection */
+/** @noinspection PhpUnhandledExceptionInspection */
+/** @noinspection PhpUnused */
+/** @noinspection PhpUnusedAliasInspection */
+/** @noinspection StaticClosureCanBeUsedInspection */
+
+declare(strict_types=1);
+
+/**
+ * This file is part of the guanguans/ai-commit.
+ *
+ * (c) guanguans <[email protected]>
+ *
+ * This source file is subject to the MIT license that is bundled.
+ */
+
+use App\GeneratorManager;
+use Symfony\Component\Process\Exception\ProcessFailedException;
+
+beforeEach(function (): void {
+});
+
+it('throws `ProcessFailedException`', function (): void {
+    config('ai-commit')->set('generators.github_models_cli.binary', 'github-models-cli');
+    expect(app(GeneratorManager::class)->driver('github_models_cli'))->generate('error');
+})->group(__DIR__, __FILE__)->throws(ProcessFailedException::class);