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Contents
require 'spec_helper'
describe Timers do
# Level of accuracy enforced by most tests (50ms)
Q = 0.05
it "sleeps until the next timer" do
interval = Q * 2
started_at = Time.now
fired = false
subject.after(interval) { fired = true }
subject.wait
fired.should be_true
(Time.now - started_at).should be_within(Q).of interval
end
it "fires instantly when next timer is in the past" do
fired = false
subject.after(Q) { fired = true }
sleep(Q * 2)
subject.wait
fired.should be_true
end
it "calculates the interval until the next timer should fire" do
interval = 0.1
subject.after(interval)
subject.wait_interval.should be_within(Q).of interval
sleep(interval)
subject.wait_interval.should be(0)
end
it "fires timers in the correct order" do
result = []
subject.after(Q * 2) { result << :two }
subject.after(Q * 3) { result << :three }
subject.after(Q * 1) { result << :one }
sleep Q * 4
subject.fire
result.should == [:one, :two, :three]
end
describe "recurring timers" do
it "continues to fire the timers at each interval" do
result = []
subject.every(Q * 2) { result << :foo }
sleep Q * 3
subject.fire
result.should == [:foo]
sleep Q * 5
subject.fire
result.should == [:foo, :foo]
end
end
describe "millisecond timers" do
it "calculates the proper interval to wait until firing" do
interval_ms = 25
subject.after_milliseconds(interval_ms)
expected_elapse = subject.wait_interval
subject.wait_interval.should be_within(Q).of (interval_ms / 1000.0)
end
end
end
Version data entries
4 entries across 4 versions & 3 rubygems