Contents

require File.expand_path( File.join( File.dirname( __FILE__ ), "spec_helper.rb" ) )

require 'hitimes_ext'

describe Hitimes::Stats do
  before( :each ) do
    @stats = Hitimes::Stats.new
    @full_stats = Hitimes::Stats.new
    
    [ 1, 2, 3].each { |i| @full_stats.update( i ) }
  end

  it "is initialized with 0 values" do
    @stats.count.should == 0
    @stats.min.should == 0.0
    @stats.max.should == 0.0
    @stats.sum.should == 0.0
  end

  it "calculates the mean correctly" do
    @full_stats.mean.should == 2.0
  end

  it "calculates the rate correctly" do
    @full_stats.rate.should == 0.5
  end

  it "tracks the maximum value" do
    @full_stats.max.should == 3.0
  end

  it "tracks the minimum value" do
    @full_stats.min.should == 1.0
  end

  it "tracks the count" do
    @full_stats.count.should == 3
  end
  
  it "tracks the sum" do
    @full_stats.sum.should == 6.0
  end

  it "calculates the standard deviation" do
    @full_stats.stddev.should == 1.0
  end 

end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
hitimes-0.2.1	spec/stats_spec.rb
hitimes-0.3.0-x86-mswin32-60	spec/stats_spec.rb
hitimes-0.3.0	spec/stats_spec.rb