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Diffstat (limited to 'testtools/tests/twistedsupport/test_runtest.py')
-rw-r--r--testtools/tests/twistedsupport/test_runtest.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/testtools/tests/twistedsupport/test_runtest.py b/testtools/tests/twistedsupport/test_runtest.py
index 2a9ddf3..dd363a5 100644
--- a/testtools/tests/twistedsupport/test_runtest.py
+++ b/testtools/tests/twistedsupport/test_runtest.py
@@ -804,7 +804,7 @@ class TestAssertFailsWith(NeedsTwistedTestCase):
failure.trap(self.failureException)
self.assertThat(
str(failure.value),
- Equals("RuntimeError not raised ({!r} returned)".format(marker)))
+ Equals(f"RuntimeError not raised ({marker!r} returned)"))
d.addCallbacks(
lambda x: self.fail("Should not have succeeded"), check_result)
return d
@@ -867,7 +867,7 @@ class TestAssertFailsWith(NeedsTwistedTestCase):
failure.trap(CustomException)
self.assertThat(
str(failure.value),
- Equals("RuntimeError not raised ({!r} returned)".format(marker)))
+ Equals(f"RuntimeError not raised ({marker!r} returned)"))
return d.addCallbacks(
lambda x: self.fail("Should not have succeeded"), check_result)