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---
layout: base
title: Testing Applications
icon: fa fa-cubes
breadcrumbs:
-
name: Documentation
path: /documentation/
---
<div class="callout-block callout-info">
<div class="icon-holder"><i class="fa fa-info-circle"></i></div>
<div class="content">
Application management is only available on Puppet >= 4.3.0
</div>
</div>
## Basic Test Structure
{% highlight ruby %}
describe '<application name>' do
let(:node) { '<host name>' }
let(:title) { '<application instance title>' }
let(:params) do
{
'nodes' => {
ref('Node', node) => ref('<capitalised application name>', title),
}
# any additional app parameters
}
end
# tests go here
end
{% endhighlight %}
* The `node` definition is required to be set so that it can be later
referenced in the `nodes` parameter.
* Applications act like defined types and require a `title` to be defined.
* The `nodes` parameter requires the use of node reference mappings to
resource mappings. The `ref` method creates these references (a normal
string will not suffice).
<div class="callout-block callout-info">
<div class="icon-holder"><i class="fa fa-info-circle"></i></div>
<div class="content">
Cross-node support is not available at the moment and will return an error.
Ensure that you model your tests to be single-node.
</div>
</div>
## Configuring The Tests
{% include non_host_inputs.md %}
{% include common_inputs.md %}
{% include facts_inputs.md %}
## Testing The Catalogue
{% include catalogue_matchers.md %}
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