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authorJeff McCune <jeff@puppetlabs.com>2012-02-29 12:47:08 -0800
committerJeff McCune <jeff@puppetlabs.com>2012-03-05 16:26:22 -0800
commita452f6a9af21d9ec5f34e6cda40af0ec3971b422 (patch)
tree595c5f48927dfeaa7e5cbc215b50ea7c1b83fc5a /spec/unit
parentc0ac470e764841b0de88dbabade342dc2c1b193e (diff)
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(#12357) Add puppet_vardir custom fact
Without this patch the PE modules don't have a way to identify a filesystem path where it's OK to place variable data related to managing the target node. This is a problem when a module like pe_compliance needs to write a wrapper script to the node's filesystem. This patch addresses the problem by exposing the node's Puppet[:vardir] setting as a Facter fact. This fact value will be set to `nil` if Puppet is not loaded into memory. If Puppet is loaded, e.g. using `facter --puppet` or using `puppet agent` or `puppet apply` then the fact will automatically set the value to Puppet[:vardir] The value of this setting is subject to Puppet's run_mode. This patch implements a new utility method in the standard library module named `Facter::Util::PuppetSettings.with_puppet`. The method accepts a block and will only invoke the block if the Puppet library is loaded into the Ruby process. If Puppet is not loaded, the method always returns nil. This makes it easy to define Facter facts that only give values if Puppet is loaded in memory.
Diffstat (limited to 'spec/unit')
-rw-r--r--spec/unit/facter/util/puppet_settings_spec.rb35
1 files changed, 35 insertions, 0 deletions
diff --git a/spec/unit/facter/util/puppet_settings_spec.rb b/spec/unit/facter/util/puppet_settings_spec.rb
new file mode 100644
index 0000000..c3ce6ea
--- /dev/null
+++ b/spec/unit/facter/util/puppet_settings_spec.rb
@@ -0,0 +1,35 @@
+require 'spec_helper'
+require 'facter/util/puppet_settings'
+
+describe Facter::Util::PuppetSettings do
+
+ describe "#with_puppet" do
+ context "Without Puppet loaded" do
+ before(:each) do
+ Module.expects(:const_get).with("Puppet").raises(NameError)
+ end
+
+ it 'should be nil' do
+ subject.with_puppet { Puppet[:vardir] }.should be_nil
+ end
+ it 'should not yield to the block' do
+ Puppet.expects(:[]).never
+ subject.with_puppet { Puppet[:vardir] }.should be_nil
+ end
+ end
+ context "With Puppet loaded" do
+ module Puppet; end
+ let(:vardir) { "/var/lib/puppet" }
+
+ before :each do
+ Puppet.expects(:[]).with(:vardir).returns vardir
+ end
+ it 'should yield to the block' do
+ subject.with_puppet { Puppet[:vardir] }
+ end
+ it 'should return the nodes vardir' do
+ subject.with_puppet { Puppet[:vardir] }.should eq vardir
+ end
+ end
+ end
+end