#  Copyright (c) 2015-2018 Cisco Systems, Inc.
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import pytest

from molecule.command import idempotence


@pytest.fixture
def _patched_is_idempotent(mocker):
    return mocker.patch(
        'molecule.command.idempotence.Idempotence._is_idempotent')


# NOTE(retr0h): The use of the `patched_config_validate` fixture, disables
# config.Config._validate from executing.  Thus preventing odd side-effects
# throughout patched.assert_called unit tests.
@pytest.fixture
def _instance(patched_config_validate, config_instance):
    config_instance.state.change_state('converged', True)

    return idempotence.Idempotence(config_instance)


def test_execute(mocker, patched_logger_info, patched_ansible_converge,
                 _patched_is_idempotent, patched_logger_success, _instance):
    _instance.execute()

    x = [
        mocker.call("Scenario: 'default'"),
        mocker.call("Action: 'idempotence'"),
    ]
    assert x == patched_logger_info.mock_calls

    patched_ansible_converge.assert_called_once_with(out=None, err=None)

    _patched_is_idempotent.assert_called_once_with(
        'patched-ansible-converge-stdout')

    msg = 'Idempotence completed successfully.'
    patched_logger_success.assert_called_once_with(msg)


def test_execute_raises_when_not_converged(
        patched_logger_critical, patched_ansible_converge, _instance):
    _instance._config.state.change_state('converged', False)
    with pytest.raises(SystemExit) as e:
        _instance.execute()

    assert 1 == e.value.code

    msg = 'Instances not converged.  Please converge instances first.'
    patched_logger_critical.assert_called_once_with(msg)


def test_execute_raises_when_fails_idempotence(
        mocker, patched_logger_critical, patched_ansible_converge,
        _patched_is_idempotent, _instance):
    _patched_is_idempotent.return_value = False
    with pytest.raises(SystemExit) as e:
        _instance.execute()

    assert 1 == e.value.code

    msg = 'Idempotence test failed because of the following tasks:\n'
    patched_logger_critical.assert_called_once_with(msg)


def test_is_idempotent(_instance):
    output = """
PLAY RECAP ***********************************************************
check-command-01: ok=3    changed=0    unreachable=0    failed=0
    """

    assert _instance._is_idempotent(output)


def test_is_idempotent_not_idempotent(_instance):
    output = """
PLAY RECAP ***********************************************************
check-command-01: ok=2    changed=1    unreachable=0    failed=0
check-command-02: ok=2    changed=1    unreachable=0    failed=0
    """

    assert not _instance._is_idempotent(output)


def test_non_idempotent_tasks_idempotent(_instance):
    output = """
PLAY [all] ***********************************************************

GATHERING FACTS ******************************************************
ok: [check-command-01]

TASK: [Idempotence test] *********************************************
ok: [check-command-01]

PLAY RECAP ***********************************************************
check-command-01: ok=3    changed=0    unreachable=0    failed=0
"""
    result = _instance._non_idempotent_tasks(output)

    assert result == []


def test_non_idempotent_tasks_not_idempotent(_instance):
    output = """
PLAY [all] ***********************************************************

GATHERING FACTS ******************************************************
ok: [check-command-01]
ok: [check-command-02]

TASK: [Idempotence test] *********************************************
changed: [check-command-01]
changed: [check-command-02]

PLAY RECAP ***********************************************************
check-command-01: ok=2    changed=1    unreachable=0    failed=0
check-command-02: ok=2    changed=1    unreachable=0    failed=0
"""
    result = _instance._non_idempotent_tasks(output)

    assert result == [
        '* [check-command-01] => Idempotence test',
        '* [check-command-02] => Idempotence test'
    ]
