// Copyright 2024 Google LLC
// SPDX-License-Identifier: Apache-2.0
package tracing
import (
"testing"
"time"
)
func TestMilliseconds(t *testing.T) {
for _, tm := range []time.Time{
time.Unix(0, 0),
time.Unix(1, 0),
time.Unix(100, 554),
time.Date(2024, time.March, 24, 1, 2, 3, 4, time.UTC),
} {
m := ToMilliseconds(tm)
got := m.Time()
// Compare to the nearest millisecond. Due to the floating-point operations in the above
// two functions, we can't be sure that the round trip is more accurate than that.
if !got.Round(time.Millisecond).Equal(tm.Round(time.Millisecond)) {
t.Errorf("got %v, want %v", got, tm)
}
}
}