internal_test.go

Documentation: time

		 1  // Copyright 2011 The Go Authors. All rights reserved.
		 2  // Use of this source code is governed by a BSD-style
		 3  // license that can be found in the LICENSE file.
		 4  
		 5  package time
		 6  
		 7  func init() {
		 8  	// force US/Pacific for time zone tests
		 9  	ForceUSPacificForTesting()
		10  }
		11  
		12  func initTestingZone() {
		13  	z, err := loadLocation("America/Los_Angeles", zoneSources[len(zoneSources)-1:])
		14  	if err != nil {
		15  		panic("cannot load America/Los_Angeles for testing: " + err.Error())
		16  	}
		17  	z.name = "Local"
		18  	localLoc = *z
		19  }
		20  
		21  var OrigZoneSources = zoneSources
		22  
		23  func forceZipFileForTesting(zipOnly bool) {
		24  	zoneSources = make([]string, len(OrigZoneSources))
		25  	copy(zoneSources, OrigZoneSources)
		26  	if zipOnly {
		27  		zoneSources = zoneSources[len(zoneSources)-1:]
		28  	}
		29  }
		30  
		31  var Interrupt = interrupt
		32  var DaysIn = daysIn
		33  
		34  func empty(arg interface{}, seq uintptr) {}
		35  
		36  // Test that a runtimeTimer with a period that would overflow when on
		37  // expiration does not throw or cause other timers to hang.
		38  //
		39  // This test has to be in internal_test.go since it fiddles with
		40  // unexported data structures.
		41  func CheckRuntimeTimerPeriodOverflow() {
		42  	// We manually create a runtimeTimer with huge period, but that expires
		43  	// immediately. The public Timer interface would require waiting for
		44  	// the entire period before the first update.
		45  	r := &runtimeTimer{
		46  		when:	 runtimeNano(),
		47  		period: 1<<63 - 1,
		48  		f:			empty,
		49  		arg:		nil,
		50  	}
		51  	startTimer(r)
		52  	defer stopTimer(r)
		53  
		54  	// If this test fails, we will either throw (when siftdownTimer detects
		55  	// bad when on update), or other timers will hang (if the timer in a
		56  	// heap is in a bad state). There is no reliable way to test this, but
		57  	// we wait on a short timer here as a smoke test (alternatively, timers
		58  	// in later tests may hang).
		59  	<-After(25 * Millisecond)
		60  }
		61  
		62  var (
		63  	MinMonoTime = Time{wall: 1 << 63, ext: -1 << 63, loc: UTC}
		64  	MaxMonoTime = Time{wall: 1 << 63, ext: 1<<63 - 1, loc: UTC}
		65  
		66  	NotMonoNegativeTime = Time{wall: 0, ext: -1<<63 + 50}
		67  )
		68
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