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#!/usr/bin/env ruby
require 'spec_helper'
require 'puppet/util/feature'
describe Puppet::Util::Feature do
before do
@features = Puppet::Util::Feature.new("features")
@features.stubs(:warn)
end
it "should consider undefined features to be absent" do
@features.should_not be_defined_feature
end
it "should be able to add new features" do
@features.add(:myfeature) {}
@features.should respond_to(:myfeature?)
end
it "should call associated code when loading a feature" do
$loaded_feature = false
@features.add(:myfeature) { $loaded_feature = true}
$loaded_feature.should be_true
end
it "should consider a feature absent when the feature load fails" do
@features.add(:failer) { raise "foo" }
@features.should_not be_failer
end
it "should consider a feature to be absent when the feature load returns false" do
@features.add(:failer) { false }
@features.should_not be_failer
end
it "should consider a feature to be present when the feature load returns true" do
@features.add(:available) { true }
@features.should be_available
end
it "should cache the results of a feature load" do
$loaded_feature = 0
@features.add(:myfeature) { $loaded_feature += 1 }
@features.myfeature?
@features.myfeature?
$loaded_feature.should == 1
end
it "should support features with libraries" do
lambda { @features.add(:puppet, :libs => %w{puppet}) }.should_not raise_error
end
it "should consider a feature to be present if all of its libraries are present" do
@features.add(:myfeature, :libs => %w{foo bar})
@features.expects(:require).with("foo")
@features.expects(:require).with("bar")
@features.should be_myfeature
end
it "should log and consider a feature to be absent if any of its libraries are absent" do
@features.add(:myfeature, :libs => %w{foo bar})
@features.expects(:require).with("foo").raises(LoadError)
@features.stubs(:require).with("bar")
Puppet.expects(:debug)
@features.should_not be_myfeature
end
end
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