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#!/usr/bin/env ruby
Dir.chdir(File.dirname(__FILE__)) { (s = lambda { |f| File.exist?(f) ? require(f) : Dir.chdir("..") { s.call(f) } }).call("spec/spec_helper.rb") }
require 'puppet/util/metric'
describe Puppet::Util::Metric do
before do
@metric = Puppet::Util::Metric.new("foo")
end
it "should be aliased to Puppet::Metric" do
Puppet::Util::Metric.should equal(Puppet::Metric)
end
[:type, :name, :value, :label, :basedir].each do |name|
it "should have a #{name} attribute" do
@metric.should respond_to(name)
@metric.should respond_to(name.to_s + "=")
end
end
it "should default to the :rrdir as the basedir "do
Puppet.settings.expects(:value).with(:rrddir).returns "myrrd"
@metric.basedir.should == "myrrd"
end
it "should use any provided basedir" do
@metric.basedir = "foo"
@metric.basedir.should == "foo"
end
it "should require a name at initialization" do
lambda { Puppet::Util::Metric.new }.should raise_error(ArgumentError)
end
it "should always convert its name to a string" do
Puppet::Util::Metric.new(:foo).name.should == "foo"
end
it "should support a label" do
Puppet::Util::Metric.new("foo", "mylabel").label.should == "mylabel"
end
it "should autogenerate a label if none is provided" do
Puppet::Util::Metric.new("foo_bar").label.should == "Foo bar"
end
it "should have a method for adding values" do
@metric.should respond_to(:newvalue)
end
it "should have a method for returning values" do
@metric.should respond_to(:values)
end
it "should require a name and value for its values" do
lambda { @metric.newvalue }.should raise_error(ArgumentError)
end
it "should support a label for values" do
@metric.newvalue(:foo, 10, "label")
@metric.values[0][1].should == "label"
end
it "should autogenerate value labels if none is provided" do
@metric.newvalue("foo_bar", 10)
@metric.values[0][1].should == "Foo bar"
end
it "should return its values sorted by label" do
@metric.newvalue(:foo, 10, "b")
@metric.newvalue(:bar, 10, "a")
@metric.values.should == [[:bar, "a", 10], [:foo, "b", 10]]
end
it "should use an array indexer method to retrieve individual values" do
@metric.newvalue(:foo, 10)
@metric[:foo].should == 10
end
it "should return nil if the named value cannot be found" do
@metric[:foo].should be_nil
end
# LAK: I'm not taking the time to develop these tests right now.
# I expect they should actually be extracted into a separate class
# anyway.
it "should be able to graph metrics using RRDTool"
it "should be able to create a new RRDTool database"
it "should be able to store metrics into an RRDTool database"
end
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