chore: import upstream snapshot with attribution

python/ray/serve/tests/test_minimal_installation.py

@@ -0,0 +1,19 @@
+import os
+import sys
+
+import pytest
+
+
+@pytest.mark.skipif(
+    os.environ.get("RAY_MINIMAL") != "1",
+    reason="This test is only run in CI with a minimal Ray installation.",
+)
+def test_error_msg():
+    with pytest.raises(ModuleNotFoundError, match=r'.*install "ray\[serve\]".*'):
+        from ray import serve
+
+        serve.start()
+
+
+if __name__ == "__main__":
+    sys.exit(pytest.main(["-sv", __file__]))