inspec/docs/resources/os_env.md.erb
Kimberly Garmoe 010ca42b2d Changes 'matcher' to 'property' in examples (#2499)
Signed-off-by: kagarmoe <kgarmoe@chef.io>
2018-02-01 11:51:12 +01:00

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---
title: About the os_env Resource
---
# os_env
Use the `os_env` InSpec audit resource to test the environment variables for the platform on which the system is running.
<br>
## Syntax
A `os_env` resource block declares an environment variable, and then declares its value:
describe os_env('VARIABLE') do
its('property') { should eq 1 }
end
where
* `('VARIABLE')` must specify an environment variable, such as `PATH`
* `matcher` is a valid matcher for this resource
<br>
## Examples
The following examples show how to use this InSpec audit resource.
### Test the PATH environment variable
describe os_env('PATH') do
its('split') { should_not include('') }
its('split') { should_not include('.') }
end
### Test Habitat environment variables
Habitat uses the `os_env` resource to test environment variables. The environment variables are first defined in a whitespace array, after which each environment variable is tested:
hab_env_vars = %w(HAB_AUTH_TOKEN
HAB_CACHE_KEY_PATH
HAB_DEPOT_URL
HAB_ORG
HAB_ORIGIN
HAB_ORIGIN_KEYS
HAB_RING
HAB_RING_KEY
HAB_STUDIOS_HOME
HAB_STUDIO_ROOT
HAB_USER)
hab_env_vars.each do |e|
describe os_env(e) do
its('content') { should eq nil }
end
end
<br>
## Matchers
For a full list of available matchers please visit our [matchers page](https://www.inspec.io/docs/reference/matchers/).
### content
The `content` matcher return the value of the environment variable:
its('content') { should eq '/usr/local/bin:/usr/local/sbin:/usr/sbin:/usr/bin:/sbin' }
### split
The `split` matcher splits the value of the environment variable with the `:` deliminator (use the `;` deliminator if Windows):
its('split') { should include ('/usr/bin') }
Note: the `split` matcher returns an array including `""` for cases where there is a trailing colon (`:`), such as `dir1::dir2:`