require File.dirname(__FILE__) + '/../../spec_helper'

describe "Process.times" do
  it "returns current cpu times" do

    t = Process::times
    t.class.should == Struct::Tms

    # Stall for 1 second, but do work instead of sleeping
    # because process times won't increase.
    start = Time.now
    1 until (Time.now - start) > 1.2

    # Ensure times is at least one second larger. NOTE that
    # there is no guarantee of an upper bound since anything
    # may be happening at the OS level, so we ONLY check
    # that at least an interval has elapsed. Also, we are
    # assuming there is a correlation between wall clock
    # time and process time. In practice, there is an
    # observed discrepancy often 10% or greater. In other
    # words, this is a very fuzzy test.
    t2 = Process::times
    diff = (t2.utime + t2.stime) - (t.utime + t.stime)
    diff.should >= 1.0
  end
end

require File.dirname(__FILE__) + '/../../spec_helper'

describe "Process.times" do
  it "returns a Struct::Tms" do
    Process::times.class.should == Struct::Tms
  end

  it "returns current cpu times" do

    t = Process::times

    # Stall for 1 second, but do work instead of sleeping
    # because process times won't increase.
    start = Time.now
    1 until (Time.now - start) > 1.2

    # Ensure times is at least one second larger. NOTE that
    # there is no guarantee of an upper bound since anything
    # may be happening at the OS level, so we ONLY check
    # that at least an interval has elapsed. Also, we are
    # assuming there is a correlation between wall clock
    # time and process time. In practice, there is an
    # observed discrepancy often 10% or greater. In other
    # words, this is a very fuzzy test.
    t2 = Process::times
    diff = (t2.utime + t2.stime) - (t.utime + t.stime)
    diff.should >= 1.0
  end
end

Split process.times spec into spec of what class is returned, and spec the behavior
Split process.times spec into spec of what class is returned, and spec the behavior
