gistfile1.py

    def test_next_patch(self):
        queue = AbstractPatchQueue()
        tool = MockTool()
        queue.bind_to_tool(tool)
        queue._options = Mock()
        queue._options.port = None
        self.assertEquals(queue._next_patch(), None)
        tool.status_server = MockStatusServer(work_items=[2, 10000, 10001])
        expected_stdout = "MOCK: fetch_attachment: 2 is not a known attachment id\n"  # A mock-only message to prevent us from making mistakes.
        expected_stderr = "MOCK: release_work_item: None 2\n"
        patch = OutputCapture().assert_outputs(self, queue._next_patch, expected_stdout=expected_stdout, expected_stderr=expected_stderr)
        self.assertEquals(patch.id(), 10000)  # 2 is an invalid patch id
        self.assertEquals(queue._next_patch().id(), 10001)
        self.assertEquals(queue._next_patch(), None)