inspec/docs/resources/gem.md.erb
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---
title: About the gem Resource
---
# gem
Use the `gem` InSpec audit resource to test if a global Gem package is installed.
## Syntax
A `gem` resource block declares a package and (optionally) a package version:
describe gem('gem_package_name') do
it { should be_installed }
end
where
* `('gem_package_name')` must specify a Gem package, such as `'rubocop'`
* `be_installed` is a valid matcher for this resource
## Matchers
This InSpec audit resource has the following matchers:
### be
<%= partial "/shared/matcher_be" %>
### be_installed
The `be_installed` matcher tests if the named Gem package is installed:
it { should be_installed }
### cmp
<%= partial "/shared/matcher_cmp" %>
### eq
<%= partial "/shared/matcher_eq" %>
### include
<%= partial "/shared/matcher_include" %>
### match
<%= partial "/shared/matcher_match" %>
### version
The `version` matcher tests if the named package version is on the system:
its('version') { should eq '0.33.0' }
## Examples
The following examples show how to use this InSpec audit resource.
### Verify that a gem package is installed, with a specific version
describe gem('rubocop') do
it { should be_installed }
its('version') { should eq '0.33.0' }
end
### Verify that a gem package is not installed
describe gem('rubocop') do
it { should_not be_installed }
end