def METHOD_NAME(self):
    tc = TestCase()
    root = tc.body.create_if()
    assert_equal(root.id, None)
    branch = root.body.create_branch()
    assert_equal(branch.id, 't1-k1')
    assert_equal(branch.body.create_keyword().id, 't1-k1-k1')
    assert_equal(branch.body.create_keyword().id, 't1-k1-k2')
    branch = root.body.create_branch()
    assert_equal(branch.id, 't1-k2')
    assert_equal(branch.body.create_keyword().id, 't1-k2-k1')
    assert_equal(branch.body.create_keyword().id, 't1-k2-k2')
    assert_equal(tc.body.create_keyword().id, 't1-k3')