test: add test for YouTubeVideoDetailsComponent component

src/backend/tests/unit/components/youtube/test_video_details_component.py

@@ -0,0 +1,50 @@
+import pytest
+from langflow.components.youtube import YouTubeVideoDetailsComponent
+from tests.base import ComponentTestBaseWithClient
+
+
+@pytest.mark.usefixtures("client")
+class TestYouTubeVideoDetailsComponent(ComponentTestBaseWithClient):
+    @pytest.fixture
+    def component_class(self):
+        return YouTubeVideoDetailsComponent
+
+    @pytest.fixture
+    def default_kwargs(self):
+        return {
+            "video_url": "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
+            "api_key": "YOUR_API_KEY",
+            "include_statistics": True,
+            "include_content_details": True,
+            "include_tags": True,
+            "include_thumbnails": True,
+        }
+
+    @pytest.fixture
+    def file_names_mapping(self):
+        return [
+            {"version": "1.0.0", "module": "youtube_video_details", "file_name": "YouTubeVideoDetails"},
+        ]
+
+    async def test_get_video_details(self, component_class, default_kwargs):
+        component = component_class(**default_kwargs)
+        result = await component.get_video_details()
+        assert result is not None
+        assert "video_id" in result.columns
+        assert "title" in result.columns
+        assert "view_count" in result.columns
+        assert "like_count" in result.columns
+
+    async def test_video_not_found(self, component_class):
+        component = component_class(video_url="https://www.youtube.com/watch?v=INVALID_ID", api_key="YOUR_API_KEY")
+        result = await component.get_video_details()
+        assert result is not None
+        assert "error" in result.columns
+        assert result["error"].iloc[0] == "Video not found."
+
+    async def test_api_forbidden(self, component_class):
+        component = component_class(video_url="https://www.youtube.com/watch?v=dQw4w9WgXcQ", api_key="INVALID_API_KEY")
+        result = await component.get_video_details()
+        assert result is not None
+        assert "error" in result.columns
+        assert result["error"].iloc[0] == "API quota exceeded or access forbidden."