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* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
27 lines
873 B
Ruby
27 lines
873 B
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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describe "Process.times" do
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it "returns a Struct::Tms" do
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Process.times.should be_kind_of(Struct::Tms)
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end
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it "returns current cpu times" do
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t = Process.times
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# Do busy work for a wall-clock interval.
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start = Time.now
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1 until (Time.now - start) > 0.5
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# Ensure times is larger. NOTE that there is no
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# guarantee of an upper bound since anything may be
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# happening at the OS level, so we ONLY check that at
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# least an interval has elapsed. Also, we are assuming
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# there is a correlation between wall clock time and
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# process time. In practice, there is an observed
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# discrepancy often 10% or greater. In other words,
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# this is a very fuzzy test.
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t2 = Process.times
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diff = (t2.utime + t2.stime) - (t.utime + t.stime)
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diff.should > 0
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end
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end
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