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108 lines
3.9 KiB
Python
108 lines
3.9 KiB
Python
"""Unit tests for devx.molecule.start_docker."""
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from unittest.mock import MagicMock, mock_open, patch
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from click.testing import CliRunner
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from devx.molecule.start_docker import is_docker_ready, main, start_docker_daemon
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class TestIsDockerReady:
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@patch("devx.molecule.start_docker.subprocess.run")
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def test_ready(self, mock_run: MagicMock) -> None:
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mock_run.return_value = MagicMock(returncode=0)
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assert is_docker_ready() is True
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mock_run.assert_called_once_with(["docker", "info"], capture_output=True, check=False)
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@patch("devx.molecule.start_docker.subprocess.run")
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def test_not_ready(self, mock_run: MagicMock) -> None:
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mock_run.return_value = MagicMock(returncode=1)
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assert is_docker_ready() is False
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class TestStartDockerDaemon:
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@patch("devx.molecule.start_docker.time.sleep")
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@patch("devx.molecule.start_docker.is_docker_ready")
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@patch("devx.molecule.start_docker.subprocess.Popen")
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@patch("builtins.open", new_callable=mock_open)
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def test_starts_successfully(
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self,
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mock_file: MagicMock,
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mock_popen: MagicMock,
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mock_ready: MagicMock,
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mock_sleep: MagicMock,
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) -> None:
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# First loop iteration: dockerd not ready yet. Second: ready.
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mock_ready.side_effect = [False, True]
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assert start_docker_daemon(timeout=5) is True
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mock_popen.assert_called_once()
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mock_sleep.assert_called_once_with(1)
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@patch("devx.molecule.start_docker.time.sleep")
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@patch("devx.molecule.start_docker.is_docker_ready", return_value=False)
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@patch("devx.molecule.start_docker.subprocess.Popen")
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@patch("builtins.open", new_callable=mock_open)
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def test_fails_after_timeout(
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self,
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mock_file: MagicMock,
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mock_popen: MagicMock,
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mock_ready: MagicMock,
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mock_sleep: MagicMock,
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) -> None:
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assert start_docker_daemon(timeout=3) is False
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mock_popen.assert_called_once()
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assert mock_sleep.call_count == 3
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@patch("devx.molecule.start_docker.time.sleep")
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@patch("devx.molecule.start_docker.is_docker_ready")
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@patch("devx.molecule.start_docker.subprocess.Popen")
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@patch("builtins.open", new_callable=mock_open)
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def test_ready_on_first_check(
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self,
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mock_file: MagicMock,
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mock_popen: MagicMock,
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mock_ready: MagicMock,
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mock_sleep: MagicMock,
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) -> None:
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mock_ready.return_value = True
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assert start_docker_daemon(timeout=5) is True
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mock_popen.assert_called_once()
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mock_sleep.assert_not_called()
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@patch("devx.molecule.start_docker.time.sleep")
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@patch("devx.molecule.start_docker.is_docker_ready")
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@patch("devx.molecule.start_docker.subprocess.Popen")
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@patch("builtins.open", new_callable=mock_open)
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def test_custom_timeout(
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self,
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mock_file: MagicMock,
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mock_popen: MagicMock,
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mock_ready: MagicMock,
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mock_sleep: MagicMock,
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) -> None:
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# 9 iterations not ready, 10th ready.
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mock_ready.side_effect = [False] * 9 + [True]
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assert start_docker_daemon(timeout=10) is True
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assert mock_sleep.call_count == 9
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class TestMain:
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@patch("devx.molecule.start_docker.start_docker_daemon", return_value=True)
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def test_success(self, mock_start: MagicMock) -> None:
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runner = CliRunner()
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result = runner.invoke(main, [])
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assert result.exit_code == 0
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@patch("devx.molecule.start_docker.start_docker_daemon", return_value=False)
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def test_failure(self, mock_start: MagicMock) -> None:
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runner = CliRunner()
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result = runner.invoke(main, [])
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assert result.exit_code == 1
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@patch("devx.molecule.start_docker.start_docker_daemon", return_value=True)
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def test_custom_timeout_flag(self, mock_start: MagicMock) -> None:
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runner = CliRunner()
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result = runner.invoke(main, ["--timeout", "60"])
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assert result.exit_code == 0
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mock_start.assert_called_once_with(60)
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