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---
layout: base
title: Coverage Reports
icon: fa fa-map-o
breadcrumbs:
-
name: Documentation
path: /documentation/
---
## Basic Report
rspec-puppet can generate a basic resource coverage report at the end of the
test run by the following to your `spec/spec_helper.rb` file.
{% highlight ruby %}
RSpec.configure do |c|
c.after(:suite) do
RSpec::Puppet::Coverage.report!
end
end
{% endhighlight %}
This checks which Puppet resources have been explicitly checked as part of the
test run and outputs both a coverage percentage and a list of untouched
resources.
<div class="callout-block callout-info">
<div class="icon-holder"><i class="fa fa-info-circle"></i></div>
<div class="content">
If you are using <code>parallel_tests</code> to speed up your rspec-puppet and
want to generate coverage reports, you <b>must</b> configure it in an
<code>after(:suite)</code> hook in <code>spec/spec_helper.rb</code> as
documented above and not with any other method (like an <code>at_exit</code>
hook in a spec file).
</div>
</div>
## Setting A Minimum Coverage Level
A desired code coverage percentage can be provided as an argument to
`RSpec::Puppet::Coverage.report!`.
{% highlight ruby %}
RSpec.configure do |c|
c.after(:suite) do
RSpec::Puppet::Coverage.report!(95)
end
end
{% endhighlight %}
If this percentage is not achieved, a test failure will be raised.
## Excluded Resources
Resources declared outside of the module being tested (i.e. resources added by
module dependencies) are automatically excluded from the coverage report.
To exclude other resources from the coverage reports, for example to avoid `anchor`s,
use the `add_filter(type, title)` and `add_filter_regex(type, regex)` methods:
{% highlight ruby %}
RSpec.configure do |c|
c.before(:suite) do
# Exclude File[/tmp] from all coverage reports
RSpec::Puppet::Coverage.add_filter('File', '/tmp')
# Exclude all anchor resources from all coverage reports
RSpec::Puppet::Coverage.add_filter_regex('Anchor', '.*')
end
end
{% endhighlight %}
<div class="callout-block callout-info">
<div class="icon-holder"><i class="fa fa-exclamation-triangle"></i></div>
<div class="content">
Note that currently filters are global and do not get reset in between examples.
To avoid accidents you should only configure global excludes and only in the
`before(:suite)` hook.
</div>
</div>
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