fix flaky test_invalid_definition (#539)

lmineiro · jmcs · commit 0b7c7cee8d7c · 2018-09-28T09:44:21.000+02:00
diff --git a/tests/test_cli.py b/tests/test_cli.py
@@ -43,7 +43,7 @@ def test_invalid_definition():
 
         result = runner.invoke(cli, ['print', 'myapp.yaml', '--region=aa-fakeregion-1', '123'], catch_exceptions=False)
 
-    assert 'Error: Invalid value for "DEFINITION"' in result.output
+    assert 'error: invalid value for "definition"' in result.output.lower()
 
 
 def test_file_not_found():
