A better way to neuter decorators when not testing.

1 files changed, 11 insertions, 1 deletions

diff --git a/tests/test_misc.py b/tests/test_misc.py
index 0b6c9144..fc95744a 100644
--- a/tests/test_misc.py
+++ b/tests/test_misc.py
@@ -9,7 +9,7 @@ import pytest
 
 import coverage
 from coverage.version import _make_url, _make_version
-from coverage.misc import contract, file_be_gone, Hasher, one_of
+from coverage.misc import contract, dummy_decorator_with_args, file_be_gone, Hasher, one_of
 
 from tests.coveragetest import CoverageTest
 
@@ -109,6 +109,16 @@ class ContractTest(CoverageTest):
         with pytest.raises(AssertionError):
             give_me_one()
 
+    def test_dummy_decorator_with_args(self):
+        @dummy_decorator_with_args("anything", this=17, that="is fine")
+        def undecorated(a=None, b=None):                # pylint: disable=missing-docstring
+            return (a, b)
+
+        assert undecorated() == (None, None)
+        assert undecorated(17) == (17, None)
+        assert undecorated(b=23) == (None, 23)
+        assert undecorated(b=42, a=3) == (3, 42)
+
 
 class VersionTest(CoverageTest):
     """Tests of version.py"""