TestInfra - Testing Your Infrastructure

Write unit tests in Python with Testinfra to test the state of your servers configured by managements tools like Salt, Ansible, Puppet, Chef.

Today TestInfra does not support Terraform but maybe this is something to build as a custom module in our environment

Below is a very simple TestInfra script to verify if apache is running

vi apachecheck.py

def test_apache2_is_installed(Package):
    apache2 = Package("apache2")
    assert apache2.is_installed
    assert apache2.version.startswith("2.2")

Then run with

testinfra  -v apachecheck.py
==================================================== test session starts
platform linux2 -- Python 2.7.3, pytest-3.0.1, py-1.4.31, pluggy-0.3.1 -- /usr/bin/python
cachedir: .cache
rootdir: /root, inifile:
plugins: testinfra-1.4.2
collected 1 items

apachecheck.py::test_apache2_is_installed[local] PASSED

================================================== 1 passed in 0.53 seconds

Now edit and change the version number to invalid i.e. 3.2

vi apachecheck.py


testinfra  -v apachecheck.py
==================================================== test session starts =====================================================
platform linux2 -- Python 2.7.3, pytest-3.0.1, py-1.4.31, pluggy-0.3.1 -- /usr/bin/python
cachedir: .cache
rootdir: /root, inifile:
plugins: testinfra-1.4.2
collected 1 items

apachecheck.py::test_apache2_is_installed[local] FAILED

========================================================== FAILURES ==========================================================
______________________________________________ test_apache2_is_installed[local] ______________________________________________

Package = <class 'testinfra.modules.base.DebianPackage'>

    def test_apache2_is_installed(Package):
        apache2 = Package("apache2")
        assert apache2.is_installed
>       assert apache2.version.startswith("3.2")
E       assert False
E        +  where False = <built-in method startswith of unicode object at 0x2462e40>('3.2')
E        +    where <built-in method startswith of unicode object at 0x2462e40> = '2.2.22-1ubuntu1.11'.startswith
E        +      where '2.2.22-1ubuntu1.11' = <package apache2>.version

apachecheck.py:4: AssertionError
================================================== 1 failed in 0.58 seconds ==================================================


That's only a very quick example.  Easy to use, quick and worth keeping a note for future reference.

Will need support for Terraform before I'd use this in production