Merge pull request #1151 from jakob-keller/test-invalid-endpoint-url

Test invalid `endpoint_url`

tests/test_endpoint.py

@@ -0,0 +1,12 @@
+import pytest
+
+
+@pytest.mark.moto
+@pytest.mark.asyncio
+async def test_invalid_endpoint_url(session, region):
+    endpoint_url = 'invalid_url'
+    with pytest.raises(ValueError, match=f'Invalid endpoint: {endpoint_url}'):
+        async with session.create_client(
+            'ec2', region_name=region, endpoint_url=endpoint_url
+        ):
+            raise AssertionError  # should not succeed in entering client context