Method _runtime_warn

Lib/test/test_unittest/test_case.py:1634–1635

()

    def testAssertWarnsCallable(self):
        def _runtime_warn():
            warnings.warn("foo", RuntimeWarning)
        # Success when the right warning is triggered, even several times
        self.assertWarns(RuntimeWarning, _runtime_warn)
        self.assertWarns(RuntimeWarning, _runtime_warn)