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Contents
require 'spec_helper'
describe Tronprint::CPUMonitor do
let(:aggregator) { Tronprint::Aggregator.new :adapter => :memory }
let(:cpu_monitor) { Tronprint::CPUMonitor.new aggregator, 'my_app', :run => false }
describe '#monitor' do
before :each do
cpu_monitor.stub!(:elapsed_cpu_time).and_return 23.87
end
it 'writes the elapsed time to the aggregate statistics' do
cpu_monitor.monitor
aggregator['my_app/application/cpu_time'].should == 23.87
end
it 'increments the toal recorded cpu time' do
cpu_monitor.stub!(:elapsed_cpu_time).and_return 9.0
cpu_monitor.monitor
cpu_monitor.total_recorded_cpu_time.should == 9.0
cpu_monitor.stub!(:elapsed_cpu_time).and_return 12.0
cpu_monitor.monitor
cpu_monitor.total_recorded_cpu_time.should == 21.0
end
end
describe '#elapsed_cpu_time' do
it 'returns the total CPU time on the first run' do
cpu_monitor.stub!(:total_recorded_cpu_time).and_return 0
cpu_monitor.stub!(:total_cpu_time).and_return 9.0
cpu_monitor.elapsed_cpu_time.should == 9.0
end
it 'returns the amount of CPU time used since the last check' do
cpu_monitor.stub!(:total_recorded_cpu_time).and_return 23.0
cpu_monitor.stub!(:total_cpu_time).and_return 36.0
cpu_monitor.elapsed_cpu_time.should == 13.0
end
end
describe '#total_cpu_time' do
it 'returns the total user and system time of the process' do
Process.stub!(:times).and_return [10.1, 12.3]
cpu_monitor.total_cpu_time.should == 22.4
end
end
describe '#total_recorded_cpu_time' do
it 'returns 0 by default' do
cpu_monitor.total_recorded_cpu_time.should == 0
end
it 'returns total recorded time' do
cpu_monitor.total_recorded_cpu_time = 3
cpu_monitor.total_recorded_cpu_time.should == 3
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems