new_contents: from ghi_assist.hooks.assigned_label_hook import AssignedLabelHook
  
  def test_assign():
      """Test successful assignment."""
      hook = AssignedLabelHook()
      payload = {"action": "assigned",
                 "issue": {"labels": [{"name": "alpha"},
                                      {"name": "beta"},
                                      {"name": "gamma"}]}}
      assert hook.should_perform_action(payload), "Need to perform action"
      assert len(hook.labels) == 4, "Should be four labels"
      assert "status: claimed" in hook.labels, "Needs to be claimed"
  
  def test_unassign():
      """Test successful unassignment."""
      hook = AssignedLabelHook()
      payload = {"action": "unassigned",
                 "issue": {"labels": [{"name": "alpha"},
                                      {"name": "beta"},
                                      {"name": "gamma"},
                                      {"name": "status: claimed"}]}}
      assert hook.should_perform_action(payload), "Needs to perform action"
      assert len(hook.labels) == 3, "Should be three labels"
      assert "status: claimed" not in hook.labels, "Needs to be unclaimed"
  
  def test_unneeded_assign():
      """Test unnecessary assignment."""
      hook = AssignedLabelHook()
      payload = {"action": "assigned",
                 "issue": {"labels": [{"name": "alpha"},
                                      {"name": "beta"},
                                      {"name": "gamma"},
                                      {"name": "status: claimed"}]}}
      assert not hook.should_perform_action(payload), "No need to perform action"
      assert len(hook.labels) == 4, "Should be four labels"
      assert "status: claimed" in hook.labels, "Needs to be claimed"
  
  def test_unneeded_unassign():
      """Test unnecessary unassignment."""
      hook = AssignedLabelHook()
      payload = {"action": "unassigned",
                 "issue": {"labels": [{"name": "alpha"},
                                      {"name": "beta"},
                                      {"name": "gamma"}]}}
      assert not hook.should_perform_action(payload), "No need to perform action"
      assert len(hook.labels) == 3, "Should be three labels"
      assert "status: claimed" not in hook.labels, "Needs to be unclaimed"
  
subject: Add tests for (un)claiming issues