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import mock

from resultsdbpy.model.docker import Docker
from resultsdbpy.model.wait_for_docker_test_case import WaitForDockerTestCase


class DockerUnittest(WaitForDockerTestCase):

    @WaitForDockerTestCase.run_if_has_docker()
    def test_start(self):
        with Docker.instance():
            self.assertTrue(Docker.is_running())

    @WaitForDockerTestCase.run_if_has_docker()
    def test_stack(self):
        with Docker.instance():
            def subprocess_callback(*args, **kwargs):
                return self.fail('Docker instances not correctly stacking')

            # The test here is that Docker is correctly stacking and no subprocess calls are being made after Docker is already running.
            with mock.patch('subprocess.check_call', new=subprocess_callback), mock.patch('subprocess.check_output', new=subprocess_callback):
                with Docker.instance():
                    pass

    @WaitForDockerTestCase.run_if_has_docker()
    def test_project_running(self):
        with Docker.instance():
            self.assertTrue(Docker.is_project_running(Docker.DEFAULT_PROJECT))