Validate `bot/resources/stars.json` in tests.

1 files changed, 18 insertions, 0 deletions

diff --git a/tests/test_resources.py b/tests/test_resources.py
new file mode 100644
index 000000000..2b17aea64
--- /dev/null
+++ b/tests/test_resources.py
@@ -0,0 +1,18 @@
+import json
+import mimetypes
+from pathlib import Path
+from urllib.parse import urlparse
+
+
+def test_stars_valid():
+    """Validates that `bot/resources/stars.json` contains valid images."""
+
+    path = Path('bot', 'resources', 'stars.json')
+    content = path.read_text()
+    data = json.loads(content)
+
+    for url in data.values():
+        assert urlparse(url).scheme == 'https'
+
+        mimetype, _ = mimetypes.guess_type(url)
+        assert mimetype in ('image/jpeg', 'image/png')