add more tests

Author: uchm4n

Diff for: tests/Providers/Gemini/GeminiStreamTest.php

@@ -7,14 +7,15 @@
 use Illuminate\Http\Client\Request;
 use Illuminate\Support\Facades\Http;
 use Prism\Prism\Enums\Provider;
+use Prism\Prism\Facades\Tool;
 use Prism\Prism\Prism;
 use Tests\Fixtures\FixtureResponse;
 
 beforeEach(function (): void {
     config()->set('prism.providers.gemini.api_key', env('GEMINI_API_KEY', 'sss-1234567890'));
 });
 
-it('can generate text with a basic stream', function (): void {
+it('can generate text stream with a basic prompt', function (): void {
     FixtureResponse::fakeResponseSequence('*', 'gemini/stream-basic-text');
 
     $response = Prism::text()
@@ -97,3 +98,43 @@
         ->and($text)
         ->toContain('The weather in San Francisco is currently 58°F (14°C) and partly cloudy. It feels like 55°F (13°C) with 79% humidity. There is a 0% chance of rain right now but showers are expected to develop.');
 });
+
+it('can generate text stream using tools ', function (): void {
+    FixtureResponse::fakeResponseSequence('*', 'gemini/stream-with-tools');
+
+    $tools = [
+        Tool::as('weather')
+            ->for('useful when you need to search for current weather conditions')
+            ->withStringParameter('city', 'The city that you want the weather for')
+            ->using(fn (string $city): string => "The weather will be 75° and sunny in {$city}"),
+
+        Tool::as('search')
+            ->for('useful for searching current events or data')
+            ->withStringParameter('query', 'The detailed search query')
+            ->using(fn (string $query): string => "Search results for: {$query}"),
+    ];
+
+    $response = Prism::text()
+        ->using(Provider::Gemini, 'gemini-2.0-flash')
+        ->withTools($tools)
+        ->withPrompt('What\'s the current weather in San Francisco? And tell me if I need to wear a coat?')
+        ->asStream();
+
+    $text = '';
+    $chunks = [];
+
+    foreach ($response as $chunk) {
+        $chunks[] = $chunk;
+        $text .= $chunk->text;
+    }
+
+    expect($chunks)
+        ->not->toBeEmpty()
+        ->and($text)->not->toBeEmpty()
+        ->and($text)->toContain('The weather in San Francisco is currently 58°F (14°C) and partly cloudy. It feels like 55°F (13°C) with 79% humidity. There is a 0% chance of rain right now but showers are expected to develop.')
+        ->and($text)->toContain('a light jacket or coat would be advisable');
+
+    // Verify the HTTP request
+    Http::assertSent(fn (Request $request): bool => str_contains($request->url(), 'streamGenerateContent?alt=sse')
+        && isset($request->data()['contents']));
+});