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#! /usr/bin/env ruby
require 'spec_helper'
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
rrddir = File.expand_path("myrrd")
Puppet[:rrddir] = rrddir
@metric.basedir.should == rrddir
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 == 0
end
it "should round trip through pson" do
metric = Puppet::Util::Metric.new("foo", "mylabel")
metric.newvalue("v1", 10.1, "something")
metric.newvalue("v2", 20, "something else")
tripped = Puppet::Util::Metric.from_data_hash(PSON.parse(metric.to_pson))
tripped.name.should == metric.name
tripped.label.should == metric.label
tripped.values.should == metric.values
end
end
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