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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package time
import "runtime"
func init() {
// force US/Pacific for time zone tests
ForceUSPacificForTesting()
}
func initTestingZone() {
z, err := loadLocation("America/Los_Angeles", zoneSources[len(zoneSources)-1:])
if runtime.Compiler == "gccgo" && err != nil {
z, err = loadLocation("America/Los_Angeles", zoneSources)
}
if err != nil {
panic("cannot load America/Los_Angeles for testing: " + err.Error() + "; you may want to use -tags=timetzdata")
}
z.name = "Local"
localLoc = *z
}
var OrigZoneSources = zoneSources
func forceZipFileForTesting(zipOnly bool) {
zoneSources = make([]string, len(OrigZoneSources))
copy(zoneSources, OrigZoneSources)
if zipOnly {
zoneSources = zoneSources[len(zoneSources)-1:]
}
}
var Interrupt = interrupt
var DaysIn = daysIn
func empty(arg any, seq uintptr) {}
// Test that a runtimeTimer with a period that would overflow when on
// expiration does not throw or cause other timers to hang.
//
// This test has to be in internal_test.go since it fiddles with
// unexported data structures.
func CheckRuntimeTimerPeriodOverflow() {
// We manually create a runtimeTimer with huge period, but that expires
// immediately. The public Timer interface would require waiting for
// the entire period before the first update.
r := &runtimeTimer{
when: runtimeNano(),
period: 1<<63 - 1,
f: empty,
arg: nil,
}
startTimer(r)
defer stopTimer(r)
// If this test fails, we will either throw (when siftdownTimer detects
// bad when on update), or other timers will hang (if the timer in a
// heap is in a bad state). There is no reliable way to test this, but
// we wait on a short timer here as a smoke test (alternatively, timers
// in later tests may hang).
<-After(25 * Millisecond)
}
var (
MinMonoTime = Time{wall: 1 << 63, ext: -1 << 63, loc: UTC}
MaxMonoTime = Time{wall: 1 << 63, ext: 1<<63 - 1, loc: UTC}
NotMonoNegativeTime = Time{wall: 0, ext: -1<<63 + 50}
)
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