test: validate provider URLs structurally

.github/workflows/ecosystem.yml

@@ -17,7 +17,7 @@ jobs:
   qualification:
     permissions:
       contents: read
-    uses: ml4t/ecosystem/.github/workflows/qualify-library.yml@955d8ce160c48b6907bc67ca90db219ebe7acfb9 # 2026-09-19 policy snapshot
+    uses: ml4t/ecosystem/.github/workflows/qualify-library.yml@a3080f8e09b197098c9d796240e746aca516492e # 2026-09-23 policy snapshot
     with:
       import-package: ml4t.data
       prerelease-exception: python-315-polars

.github/workflows/release.yml

@@ -64,7 +64,7 @@ jobs:
     needs: preflight
     permissions:
       contents: read
-    uses: ml4t/ecosystem/.github/workflows/qualify-library.yml@955d8ce160c48b6907bc67ca90db219ebe7acfb9 # 2026-09-19 policy snapshot
+    uses: ml4t/ecosystem/.github/workflows/qualify-library.yml@a3080f8e09b197098c9d796240e746aca516492e # 2026-09-23 policy snapshot
     with:
       import-package: ml4t.data
       prerelease-exception: python-315-polars

tests/test_aqr_provider.py

@@ -5,6 +5,7 @@
 from io import BytesIO
 from pathlib import Path
 from unittest.mock import MagicMock, patch
+from urllib.parse import urlparse
 
 import pandas as pd
 import polars as pl
@@ -530,4 +531,6 @@ def test_default_path(self):
 
     def test_base_url(self):
         """Test BASE_URL is valid AQR URL."""
-        assert "aqr.com" in AQRFactorProvider.BASE_URL
+        parsed = urlparse(AQRFactorProvider.BASE_URL)
+        assert parsed.scheme == "https"
+        assert parsed.hostname == "www.aqr.com"

tests/test_kalshi_unit.py

@@ -16,6 +16,7 @@
 
 from datetime import datetime
 from unittest.mock import MagicMock, patch
+from urllib.parse import urlparse
 
 import polars as pl
 import pytest
@@ -62,8 +63,10 @@ def test_rate_limit_default(self):
     def test_base_url(self):
         """Test base URL is correct."""
         provider = KalshiProvider()
-        assert "elections.kalshi.com" in provider.BASE_URL
-        assert "trade-api/v2" in provider.BASE_URL
+        parsed = urlparse(provider.BASE_URL)
+        assert parsed.scheme == "https"
+        assert parsed.hostname == "api.elections.kalshi.com"
+        assert parsed.path == "/trade-api/v2"
         provider.close()
 
 

tests/test_wiki_prices_provider.py

@@ -3,6 +3,7 @@
 from datetime import datetime
 from pathlib import Path
 from unittest.mock import MagicMock, patch
+from urllib.parse import urlparse
 
 import polars as pl
 import pytest
@@ -645,5 +646,7 @@ def test_default_paths_exist(self):
 
     def test_nasdaq_export_url(self):
         """Test NASDAQ_EXPORT_URL is valid."""
-        assert "nasdaq.com" in WikiPricesProvider.NASDAQ_EXPORT_URL
-        assert "WIKI/PRICES" in WikiPricesProvider.NASDAQ_EXPORT_URL
+        parsed = urlparse(WikiPricesProvider.NASDAQ_EXPORT_URL)
+        assert parsed.scheme == "https"
+        assert parsed.hostname == "data.nasdaq.com"
+        assert parsed.path == "/api/v3/datatables/WIKI/PRICES.csv"