Docs: fix spelling of "test case" in `unittest` documentation (GH-134137)
(cherry picked from commit
b41d79c776af4bfa5d28fc2036c9137978294b6a)
Co-authored-by: Clifford Gama <53076065+cliff688@users.noreply.github.com>
unittest.main()
-A testcase is created by subclassing :class:`unittest.TestCase`. The three
+A test case is created by subclassing :class:`unittest.TestCase`. The three
individual tests are defined with methods whose names start with the letters
``test``. This naming convention informs the test runner about which methods
represent tests.