test: add validation and reachability tests for /scan-url

backend/tests/test_scan_url.py

@@ -0,0 +1,77 @@
+from unittest.mock import patch, AsyncMock
+from fastapi.testclient import TestClient
+import httpx
+
+from app.main import app
+
+client = TestClient(app)
+
+
+def test_scan_url_invalid_format():
+    res = client.post(
+        "/scan-url", data={"repo_url": "not-a-url", "project_name": "test_project"}
+    )
+    assert res.status_code == 422
+    assert "Invalid GitHub URL format" in res.json()["detail"]
+
+
+@patch("app.main.httpx.AsyncClient")
+def test_scan_url_not_found(mock_async_client):
+    mock_client = AsyncMock()
+    mock_async_client.return_value.__aenter__ = AsyncMock(return_value=mock_client)
+    mock_async_client.return_value.__aexit__ = AsyncMock(return_value=None)
+
+    mock_response = httpx.Response(404)
+    mock_client.head = AsyncMock(return_value=mock_response)
+
+    res = client.post(
+        "/scan-url",
+        data={
+            "repo_url": "https://github.com/owner/repo",
+            "project_name": "test_project",
+        },
+    )
+    assert res.status_code == 422
+    assert "not found or is private" in res.json()["detail"]
+
+
+@patch("app.main.httpx.AsyncClient")
+def test_scan_url_timeout(mock_async_client):
+    mock_client = AsyncMock()
+    mock_async_client.return_value.__aenter__ = AsyncMock(return_value=mock_client)
+    mock_async_client.return_value.__aexit__ = AsyncMock(return_value=None)
+    mock_client.head = AsyncMock(side_effect=httpx.TimeoutException("timeout"))
+
+    res = client.post(
+        "/scan-url",
+        data={
+            "repo_url": "https://github.com/owner/repo",
+            "project_name": "test_project",
+        },
+    )
+    assert res.status_code == 422
+    assert "Could not reach GitHub" in res.json()["detail"]
+
+
+@patch("app.main.httpx.AsyncClient")
+@patch("app.main.download_to_path", new_callable=AsyncMock)
+@patch("app.main.unzip_to_dir")
+@patch("app.main._scan_repo_dir")
+def test_scan_url_success(mock_scan, mock_unzip, mock_download, mock_async_client):
+    mock_client = AsyncMock()
+    mock_async_client.return_value.__aenter__ = AsyncMock(return_value=mock_client)
+    mock_async_client.return_value.__aexit__ = AsyncMock(return_value=None)
+    mock_response = httpx.Response(200)
+    mock_client.head = AsyncMock(return_value=mock_response)
+
+    mock_scan.return_value = ([], [], [], [])
+
+    res = client.post(
+        "/scan-url",
+        data={
+            "repo_url": "https://github.com/owner/repo",
+            "project_name": "test_project",
+        },
+    )
+    assert res.status_code == 200
+    assert res.json()["project_name"] == "test_project"