// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package testing

var PrettyPrint = prettyPrint

type HighPrecisionTime = highPrecisionTime

//
// TODO: If Windows runtime implements high resolution timing then highPrecisionTime
// can be removed.
type highPrecisionTime struct {
	now int64
}

// highPrecisionTimeNow returns high precision time for benchmarking.
func highPrecisionTimeNow() highPrecisionTime {
	var t highPrecisionTime
	// This should always succeed for Windows XP and above.
	t.now = windows.QueryPerformanceCounter()
	return t
}

}

// highPrecisionTime represents a single point in time.
// On all systems except Windows, using time.Time is fine.
type highPrecisionTime struct {
	now time.Time
}

// highPrecisionTimeNow returns high precision time for benchmarking.
func highPrecisionTimeNow() highPrecisionTime {
	return highPrecisionTime{now: time.Now()}
}

// highPrecisionTimeSince returns duration since b.

func BenchmarkTimeNow(b *testing.B) {
	for i := 0; i < b.N; i++ {
		sink = time.Now()
	}
}

func BenchmarkHighPrecisionTimeNow(b *testing.B) {
	for i := 0; i < b.N; i++ {
		sinkHPT = testing.HighPrecisionTimeNow()
	}

// a call to [B.StopTimer].
func (b *B) StartTimer() {
	if !b.timerOn {
		runtime.ReadMemStats(&memStats)
		b.startAllocs = memStats.Mallocs
		b.startBytes = memStats.TotalAlloc
		b.start = highPrecisionTimeNow()
		b.timerOn = true
	}
}

// StopTimer stops timing a test. This can be used to pause the timer
// while performing complex initialization that you don't
// want to measure.

			f.testContext.release()
			close(f.barrier)
			// Wait for the subtests to complete.
			for _, sub := range f.sub {
				<-sub.signal
			}
			cleanupStart := highPrecisionTimeNow()
			err := f.runCleanup(recoverAndReturnPanic)
			f.duration += highPrecisionTimeSince(cleanupStart)
			if err != nil {
				doPanic(err)
			}
		}

		// Report after all subtests have finished.

	t.context.waitParallel()

	if t.chatty != nil {
		t.chatty.Updatef(t.name, "=== CONT  %s\n", t.name)
	}
	running.Store(t.name, highPrecisionTimeNow())
	t.start = highPrecisionTimeNow()

	// Reset the local race counter to ignore any races that happened while this
	// goroutine was blocked, such as in the parent test or in other parallel
	// subtests.
	//