Method _assert_value_error

gitless/tests/test_core.py:773–776

(self, name, regexp)

class TestBranchCreate(TestBranch):

  def _assert_value_error(self, name, regexp):
    self.assertRaisesRegexp(
        ValueError, regexp, self.repo.create_branch, name,
        self.repo.current_branch.head)

  def test_create_invalid_name(self):
    assert_invalid_name = lambda n: self._assert_value_error(n, 'not valid')