add unit tests for all favicons

app/tests/test_web_route.py

@@ -21,6 +21,15 @@ async def test_page():
     assert response.status_code == 200
     assert response.mimetype == 'text/html'
 
+
+@pytest.mark.asyncio
+async def test_favicon96():
+    """Test the favicon-96x96.png route."""
+    client = app.test_client()
+    response = await client.get('/favicon-96x96.png')
+    assert response.status_code == 200
+    assert response.mimetype == 'image/png'
+
 @pytest.mark.asyncio
 async def test_favicon():
     """Test the favicon.ico route."""
@@ -28,3 +37,27 @@ async def test_favicon():
     response = await client.get('/favicon.ico')
     assert response.status_code == 200
     assert response.mimetype == 'image/x-icon'
+
+@pytest.mark.asyncio
+async def test_favicon_svg():
+    """Test the favicon.svg route."""
+    client = app.test_client()
+    response = await client.get('/favicon.svg')
+    assert response.status_code == 200
+    assert response.mimetype == 'image/svg+xml'
+
+@pytest.mark.asyncio
+async def test_apple_touch_icon():
+    """Test the apple-touch-icon.png route."""
+    client = app.test_client()
+    response = await client.get('/apple-touch-icon.png')
+    assert response.status_code == 200
+    assert response.mimetype == 'image/png'
+
+@pytest.mark.asyncio
+async def test_manifest():
+    """Test the site.webmanifest route."""
+    client = app.test_client()
+    response = await client.get('/site.webmanifest')
+    assert response.status_code == 200
+    assert response.mimetype == 'application/manifest+json'