2008-12-03 17:40:00 -07:00
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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2009-08-12 14:18:37 -06:00
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package time_test
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2008-12-03 17:40:00 -07:00
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import (
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"testing";
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2009-08-12 14:18:37 -06:00
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. "time";
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2008-12-03 17:40:00 -07:00
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)
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2009-01-20 15:40:40 -07:00
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func TestTick(t *testing.T) {
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2008-12-03 17:40:00 -07:00
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const (
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2009-01-16 15:59:27 -07:00
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Delta = 100*1e6;
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Count = 10;
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2008-12-03 17:40:00 -07:00
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);
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c := Tick(Delta);
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2008-12-08 18:45:50 -07:00
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t0 := Nanoseconds();
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2008-12-03 17:40:00 -07:00
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for i := 0; i < Count; i++ {
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<-c;
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}
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2008-12-08 18:45:50 -07:00
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t1 := Nanoseconds();
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2008-12-03 17:40:00 -07:00
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ns := t1 - t0;
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target := int64(Delta*Count);
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slop := target*2/10;
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if ns < target - slop || ns > target + slop {
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2009-01-05 12:18:20 -07:00
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t.Fatalf("%d ticks of %g ns took %g ns, expected %g", Count, float64(Delta), float64(ns), float64(target));
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2008-12-03 17:40:00 -07:00
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}
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}
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