pytest-metadata is a plugin for pytest that provides access to test session metadata.

You will need the following in order to use pytest-metadata:

• Python 3.8+ or PyPy3

To install pytest-metadata:

$ pip install pytest-metadata

We welcome contributions.

To learn more, see Development

The following metadata is gathered by this plugin:

You can provide your own metadata (key, value pair) by specifying --metadata on the commandline:

pytest --metadata foo bar

Note: You can provide multiple sets of --metadata:

pytest --metadata foo bar --metadata baz zoo

There's also the possibility of passing in metadata as a JSON string:

pytest --metadata-from-json '{"cat_says": "bring the cat nip", "human_says": "yes kitty"}'

Alternatively a JSON can be read from a given file:

pytest --metadata-from-json-file path/to/valid/file.json

When run in a continuous integration environment, additional metadata is added from environment variables. Below is a list of the supported continuous integration providers, along with links to the environment variables that are added to metadata if they're present.

• AppVeyor
• Bitbucket
• CircleCI
• GitLab CI
• Jenkins
• TaskCluster
• Travis CI

Note that if you're using Tox to run your tests then you will need to pass down any additional environment variables for these to be picked up.

If you pass --verbose on the command line when running your tests, then the metadata will be displayed in the terminal report header:

pytest --verbose
============================ test session starts ============================
platform darwin -- Python 3.6.4, pytest-3.4.1, py-1.5.2, pluggy-0.6.0 -- /usr/bin/python
cachedir: .pytest_cache
metadata: {'Python': '3.6.4', 'Platform': 'Darwin-17.4.0-x86_64-i386-64bit', 'Packages': {'pytest': '3.4.1', 'py': '1.5.2', 'pluggy': '0.6.0'}, 'Plugins': {'metadata': '1.6.0'}}
plugins: metadata-1.6.0

Pytest-metadata provides the session scoped fixture include_metadata_in_junit_xml that you may use to include any metadata in Junit XML as property tags. For example the following test module

import pytest

pytestmark = pytest.mark.usefixtures('include_metadata_in_junit_xml')

def test():
    pass

when called with

pytest --metadata Daffy Duck --junit-xml=results.xml

would produce the following XML

<?xml version="1.0" encoding="utf-8"?>
<testsuites>
  <testsuite name="pytest" errors="0" failures="0" skipped="0" tests="1" time="0.009" timestamp="2020-11-27T06:38:44.407674" hostname="sam">
    <properties>
      <property name="Daffy" value="Duck"/>
...

To add/modify/delete metadata at the end of metadata collection, you can use the pytest_metadata hook:

import pytest
@pytest.hookimpl(optionalhook=True)
def pytest_metadata(metadata):
    metadata.pop("password", None)

To access the metadata from a test or fixture, you can use the metadata fixture:

def test_metadata(metadata):
    assert 'metadata' in metadata['Plugins']

To access the metadata from a plugin, you can use the stash attribute of the config object. This can be used to read/add/modify the metadata:

def pytest_configure(config):
  metadata = config.pluginmanager.getplugin("metadata")
  if metadata:
      from pytest_metadata.plugin import metadata_key
      config.stash[metadata_key]['foo'] = 'bar'

Here's a handy list of plugins that either read or contribute to the metadata:

• pytest-base-url - Adds the base URL to the metadata.
• pytest-html - Displays the metadata at the start of each report.
• pytest-reporter-html1 -Presents metadata as part of the report.
• pytest-selenium - Adds the driver, capabilities, and remote server to the metadata.

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