pytest-echo

Print environment variables, package version and generic attributes, as they are at the beginning of the test.

Useful in the continuous integration to dump test configuration/environment and or to check if attributes are properly set (ie. you change environment with os.environ)

Install

install via::

pip install pytest-echo

Examples

Dump environment variables

$ pytest --echo-env=HOME
============================= test session starts =========================
platform linux2 -- Python 2.7.4 -- py-1.4.22 -- pytest-2.6.0 -- /bin/python
Environment:
    HOME: /Users/sax
plugins: echo, pydev, cov, cache, django

Dump package version

$ pytest --echo-version=pytest_echo
============================= test session starts =========================
platform linux2 -- Python 2.7.4 -- py-1.4.22 -- pytest-2.6.0 -- /bin/python
Package version:
    pytest_echo: 0.1
plugins: echo, pydev, cov, cache, django

[!NOTE] The first attempt to retrieve the version is done via setuptools if it fails, the module is imported (__import__(package)) to retrieve the version reading get_version, __version__, VERSION, version so any module level code is executed. This should be not an issue as no problematic code should be present in the first level of the package

Dump attributes

$ pytest --echo-attr=django.conf.settings.DEBUG
============================= test session starts =========================
platform linux2 -- Python 2.7.4 -- py-1.4.22 -- pytest-2.6.0 -- /bin/python
Inspections
    django.conf.settings.DEBUG: False
plugins: echo, pydev, cov, cache, django

[!NOTE] Be careful when use --echo-attr. It loads any module in the path and this will execute any module level code If you try to dump a property, related getter will be executed.

[!NOTE] You cannot dump callable result.

Configure via tox.ini/setup.cfg/pytest.cfg

Example of use in a django project:

[pytest]
addopts = -vvv
        --tb=short
        --capture=no
        --echo-env PWD
        --echo-env VIRTUAL_ENV
        --echo-env DBENGINE
        --echo-version django
        --echo-version pip
        --echo-version pytest-echo
        --echo-attr django.conf.settings.DATABASES.default.ENGINE



$ pytest
============================= test session starts =========================
platform linux2 -- Python 2.7.4 -- py-1.4.22 -- pytest-2.6.0 -- /bin/python
Environment:
    DJANGO_SETTINGS_MODULE: tests.settings
    PWD: /data/PROGETTI/sem
    VIRTUAL_ENV: /data/VENV/sem
    DBENGINE: <not set>
Package version:
    django: 1.6.5
    pip: 1.5.6
    pytest_echo: 1.2
Inspections:
    django.conf.settings.DATABASES.default.ENGINE: 'django.db.backends.postgresql_psycopg2'
plugins: echo, cache, capturelog, contextfixture, cov, django, pydev
collected 14 items
.............
14 passed in 4.95 seconds

Globbing

Starting from version 1.5, is possible to glob packages version and environment variables, as:

$ pytest --echo-version=pytest-* --echo-env=VIRTUAL*

or

[pytest]
addopts = -vvv
        --echo-env VIRTUAL*
        --echo-version pytest-*