pytest-pop 5.3

INSTALLATION

Install with pip:

pip install pytest-pop

DEVELOPMENT INSTALLATION

Clone the pytest-pop repo and install with pip:

git clone https://gitlab.com/saltstack/pop/pytest-pop.git
pip install -e pytest-pop

Getting the Hub

Extend the hub fixture in your conftest.py so that it includes your subs:

@pytest.fixture(scope="function")
def hub(hub):
    # TODO Add dynes that will be used for your tests
    for dyne in ("exec", "states"):
        hub.pop.sub.add(dyne_name=dyne)
        if dyne in ("corn", "exec", "states"):
            hub.pop.sub.load_subdirs(getattr(hub, dyne), recurse=True)

    args = [
        # TODO patch in whatever cli args are necessary to run your test
    ]
    with mock.patch("sys.argv", ["pytest-pop"] + args):
        hub.pop.config.load(["pytest_pop"], "pytest_pop")

    yield hub

    # TODO Hub cleanup
    pass

Markers

Make use of pytest markers from pytest-salt-factoroies

@pytest.mark.skip_if_not_root
def test_root(hub):
    pass

@pytest.mark.expensive_test
def test_expensive(hub):
    pass

@pytest.mark.destructive_test
def test_destructive(hub):
    pass

Logging

You can use the hub to log without setting up a logger in every single file that uses a hub

Example:

hub.log.debug("debug message")

Be sure to run pytest with ‘–cli-log-level=10’ in order to see debug messages

Mocking

Get access to a fully mocked/autospecced version of the hub with:

mock_hub = hub.pop.testing.mock_hub()

A mock_hub fixture with common substitutions of real plugins is available as a fixture:

def test_thing(mock_hub):
    pass

Extend the mock hub in your own fixture:

# Scope the mock_hub to a function so that the autospec gets reset after each use.
@pytest.fixture(scope="function")
def mock_hub(mock_hub, hub):
    # replace mocked functions with necessary real ones
    # extend this on a per-module or per-function basis if necessary
    mock_hub.sub.func = hub.sub.func
    yield mock_hub

You can now do autospec assertions on contracted functions:

import project.sub.plugin as plugin

def test_cmd_run(mock_hub):
    plugin.func(mock_hub, "arg")
    mock_hub.sub.plugin.func.assert_called_with("arg")

ACCT

Some projects, specifically idem-cloud need credentials from idem’s ctx generator. A ctx fixture exists, but it won’t work unless you override the acct_file and acct_profile fixtures:

@pytest.fixture
def acct_subs() -> List[str]:
    return ["azurerm", "vultr"]


@pytest.fixture
def acct_profile() -> str:
    return "test_development_idem_cloud"

Once these fixtures are overridden, the ctx fixture will become available to your test:

test_cloud_instance_present(hub, ctx):
    hub.state.cloud.present(ctx, "instance_name")

Examples

Mock a hub exec function:

with patch.object(mock_hub.exec, 'dummy', return_value="some result") as mock_exec:
    pass

Set return value for mock_hub function:

mock_hub.sub.function.return_value = "Pass"

Mock hub assert called with:

mock_hub.sub.function.assert_called_with("myinput", True)