Add unit tests for FragmentClient methods

- Implement tests for Stars methods: purchase_stars and giveaway_stars, including validation and success scenarios.
- Add tests for Premium methods: purchase_premium and giveaway_premium, covering validation and success cases.
- Create tests for topup_ton functionality, validating input and mocking successful operations.
- Introduce wallet tests to verify get_wallet() functionality, ensuring correct wallet info retrieval.
- Add tests for FragmentClient.call() method, validating API response handling and data merging.
- Implement tests for anonymous number methods, including login codes and session management.
- Create recharge_ads tests for self-service Telegram Ads recharge, validating input and success scenarios.
- Add username search tests for the Fragment marketplace, ensuring correct result parsing and parameter forwarding.
- Implement number search tests for the Fragment marketplace, validating result parsing and parameter handling.
- Create gift search tests for the Fragment gifts marketplace, ensuring correct result parsing and parameter forwarding.
- Add cookie extraction tests for get_cookies_from_browser(), validating successful extraction and error handling.

examples/auctions/search_gifts.py

@@ -11,9 +11,15 @@ import asyncio
 import json
 
 from pyfragment import FragmentClient, GiftsResult
+from pyfragment.utils import get_cookies_from_browser  # noqa: F401
 
 SEED = "word1 word2 ... word24"
 API_KEY = "YOUR_TONAPI_KEY"
+
+# Option A: extract cookies directly from your browser (no manual copy-paste needed)
+# COOKIES = get_cookies_from_browser("chrome")  # or "firefox", "edge", "brave", ...
+
+# Option B: provide cookies manually
 COOKIES = {
     "stel_ssid": "YOUR_STEL_SSID",
     "stel_dt": "YOUR_STEL_DT",