Pytest Allure Spec Coverage

The pytest plugin aimed to display test coverage of the specs(requirements) in Allure

Features

• Show your uncovered specs along with the test results
• Show your skipped specs in case if you run tests selectively
• Link your test results and their respective scenarios
• Add labels to your test results for the spec-related results view
• Lint your code for mismatching specs and tests

Installation

pip install pytest-allure-spec-coverage

How to use

Without additional arguments this plugin does nothing. You need to pass the collector type of your specs.

pytest --sc-type sphinx ./tests

Make sure that your tests are linked with your specs. This plugin adds a new mark scenario. Mark your tests with a unique spec id depending on your collector type.

import pytest

@pytest.mark.scenario("something")
def test_something():
    pass

Possible collectors

sphinx

At the moment only sphinx collector implemented. It works with reStructuredText (.rst) files. Value for the scenario mark - sphinx-dir-related path to the spec file. Extension is ignored

path/
  to/
    something.rst

@pytest.mark.scenario("path/to/something")

Collector arguments:

sphinx_dir - where is placed your specs. All of the .rst files in the directory and sub-folders will be perceived as specs. The only exception - index.rst files. It will be used as the title of directories.

spec_endpoint - optionally endpoint where is hosted your sphinx specs.

default_branch - change it if your default repository branch differs from master. The current branch gets from env variable BRANCH_NAME and is used to build the correct link to spec.

Your custom collector

You can easily implement your collector and register it for the plugin. See Collector class for available methods.

# conftest.py
from pytest_allure_spec_coverage.models.collector import Collector
from pytest_allure_spec_coverage.plugin import CollectorsMapping

class YourOwnCollector(Collector):
    ...

def pytest_register_spec_collectors(collectors: CollectorsMapping) -> None:
    """Register your own spec collector"""

    collectors["yourowncollector"] = YourOwnCollector

That's all. Now you can choose it in your tests

pytest --sc-type yourowncollector ./tests

How to use spec collector as a linter

For the linter mode, we have the following options.

--sc-only - enable linter mode. If spec coverage percent is lower than --sc-target value, you get a non-zero exit code and error message.

--sc-target - target percent for the spec coverage. The default target is 100% - uncovered specs are not allowed.

If you use linter mode, tests won't start anyway. It's just the start collection stage and exit with zero or non-zero exit code. It is convenient to use in your CI.

Reporting arguments

You can pass allure_labels setting with labels for building spec structure in test results. Recommended value for the Allure2 is:

# pytest.ini
[pytest]
allure_labels =
    epic
    feature
    story

But you can use your custom labels if you needed.

If you want to contribute

Pre-commit hook

We are using black, pylint, and pre-commit to care about code formatting and linting.

So you have to install pre-commit hook before you do something with code.

pip install pre-commit # Or do it with your preferred way to install pip packages
pre-commit install

After this, you will see the invocation of black and pylint on every commit.

Run tests

To run tests, execute within project root:

pip install -e .
pytest src/pytest_allure_spec_coverage --doctest-modules --alluredir tests/allure-results
pytest -s -v --showlocals --alluredir tests/allure-results