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.
8 // Force US/Pacific for time zone tests.
9 ForceUSPacificForTesting()
12 func initTestingZone() {
13 // For hermeticity, use only tzinfo source from the test's GOROOT,
14 // not the system sources and not whatever GOROOT may happen to be
15 // set in the process's environment (if any).
16 // This test runs in GOROOT/src/time, so GOROOT is "../..",
17 // but it is theoretically possible
18 sources := []string{"../../lib/time/zoneinfo.zip"}
19 z, err := loadLocation("America/Los_Angeles", sources)
21 panic("cannot load America/Los_Angeles for testing: " + err.Error() + "; you may want to use -tags=timetzdata")
27 var origPlatformZoneSources []string = platformZoneSources
29 func disablePlatformSources() (undo func()) {
30 platformZoneSources = nil
32 platformZoneSources = origPlatformZoneSources
36 var Interrupt = interrupt
39 func empty(arg any, seq uintptr) {}
41 // Test that a runtimeTimer with a period that would overflow when on
42 // expiration does not throw or cause other timers to hang.
44 // This test has to be in internal_test.go since it fiddles with
45 // unexported data structures.
46 func CheckRuntimeTimerPeriodOverflow() {
47 // We manually create a runtimeTimer with huge period, but that expires
48 // immediately. The public Timer interface would require waiting for
49 // the entire period before the first update.
59 // If this test fails, we will either throw (when siftdownTimer detects
60 // bad when on update), or other timers will hang (if the timer in a
61 // heap is in a bad state). There is no reliable way to test this, but
62 // we wait on a short timer here as a smoke test (alternatively, timers
63 // in later tests may hang).
64 <-After(25 * Millisecond)
68 MinMonoTime = Time{wall: 1 << 63, ext: -1 << 63, loc: UTC}
69 MaxMonoTime = Time{wall: 1 << 63, ext: 1<<63 - 1, loc: UTC}
71 NotMonoNegativeTime = Time{wall: 0, ext: -1<<63 + 50}