chore: checkpoint baseline (routers, tests, pyproject)

tests/test_extractors.py

@@ -0,0 +1,48 @@
+"""Tests for URL extractors."""
+
+from src.extractors import extract_media_url
+from src.extractors.imgur import extract_imgur_url
+
+
+class TestExtractMediaUrl:
+    def test_direct_image_passthrough(self):
+        url = "https://i.redd.it/test123.jpg"
+        result_url, result_type = extract_media_url(url, "image")
+        assert result_url == url
+        assert result_type == "image"
+
+    def test_unknown_domain_passthrough(self):
+        url = "https://example.com/image.jpg"
+        result_url, result_type = extract_media_url(url, "image")
+        assert result_url == url
+        assert result_type == "image"
+
+
+class TestImgurExtractor:
+    def test_direct_imgur_url(self):
+        url = "https://i.imgur.com/abc123.jpg"
+        result_url, result_type = extract_imgur_url(url)
+        assert result_url == url
+        assert result_type == "image"
+
+    def test_gifv_to_mp4(self):
+        url = "https://i.imgur.com/abc123.gifv"
+        result_url, result_type = extract_imgur_url(url)
+        assert result_url == "https://i.imgur.com/abc123.mp4"
+        assert result_type == "video"
+
+    def test_imgur_page_url(self):
+        url = "https://imgur.com/abc123"
+        result_url, result_type = extract_imgur_url(url)
+        assert result_url == "https://i.imgur.com/abc123.jpg"
+        assert result_type == "image"
+
+    def test_imgur_album_unsupported(self):
+        url = "https://imgur.com/a/abc123"
+        result_url, _result_type = extract_imgur_url(url)
+        assert result_url is None
+
+    def test_imgur_gallery_unsupported(self):
+        url = "https://imgur.com/gallery/abc123"
+        result_url, _result_type = extract_imgur_url(url)
+        assert result_url is None