Method assertFileContainsData

app/atomic_file_test.py:35–39

(self, path, data_expected)

    # unittest.TestCase assert methods.
    # pylint: disable=invalid-name
    def assertFileContainsData(self, path, data_expected):
        self.assertTrue(os.path.exists(path))
        with open(path, 'rb') as file:
            data_actual = file.read()
            self.assertEqual(data_expected, data_actual)

    # Ignore pylint because we want to have naming consistent with other
    # unittest.TestCase assert methods.