add antibot unit tests

tests/test_scraper.py

@@ -4,6 +4,7 @@ import unittest
 from unittest.mock import MagicMock
 
 from iaai_scraper.core.config import Settings
+from iaai_scraper.core.exceptions import AntiBotDetectedError, SiteStructureChangedError
 from iaai_scraper.scraper import IAAIScraper
 from iaai_scraper.storage.schemas import CarRecord
 
@@ -149,6 +150,28 @@ class TestScraperSync(unittest.TestCase):
         self.assertIsNone(scraper.browser)
         self.assertIsNone(scraper.playwright)
 
+    def test_guard_raises_on_antibot_signals(self) -> None:
+        with self.assertRaises(AntiBotDetectedError):
+            IAAIScraper._raise_if_blocked_or_incomplete(
+                {
+                    "dom_hints": {"has_captcha_text": True, "has_antibot_text": False},
+                    "access_notes": {},
+                    "vehicle_summary": {},
+                },
+                "https://www.iaai.com/VehicleDetail/999~US",
+            )
+
+    def test_guard_raises_on_empty_vehicle_page(self) -> None:
+        with self.assertRaises(SiteStructureChangedError):
+            IAAIScraper._raise_if_blocked_or_incomplete(
+                {
+                    "dom_hints": {"has_captcha_text": False, "has_antibot_text": False},
+                    "access_notes": {"possible_captcha": False, "possible_antibot": False},
+                    "vehicle_summary": {},
+                },
+                "https://www.iaai.com/VehicleDetail/999~US",
+            )
+
 
 if __name__ == "__main__":
     unittest.main()