Fix error message with unregistered markers

2019-04-15 10:15:37 +02:00
parent 19035f4b55
commit cc005af47e
2 changed files with 2 additions and 2 deletions
--- a/src/_pytest/mark/structures.py
+++ b/src/_pytest/mark/structures.py
@@ -306,7 +306,7 @@ class MarkGenerator(object):
            # then it really is time to issue a warning or an error.
            if name not in self._markers:
                if self._config.option.strict:
-                    fail("{!r} not a registered marker".format(name), pytrace=False)
+                    fail("{!r} is not a registered marker".format(name), pytrace=False)
                else:
                    warnings.warn(
                        "Unknown pytest.mark.%s - is this a typo?  You can register "