1// Copyright 2020 Google Inc. All Rights Reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//   http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package metrics
16
17import (
18	"testing"
19	"time"
20
21	"android/soong/ui/tracer"
22)
23
24func TestEnd(t *testing.T) {
25	startTime := time.Date(2020, time.July, 13, 13, 0, 0, 0, time.UTC)
26	dur := time.Nanosecond * 10
27	initialNow := _now
28	_now = func() time.Time { return startTime.Add(dur) }
29	defer func() { _now = initialNow }()
30
31	timeTracer := &timeTracerImpl{}
32	timeTracer.activeEvents = append(timeTracer.activeEvents, timeEvent{
33		desc:  "test",
34		name:  "test",
35		start: startTime,
36	})
37
38	perf := timeTracer.End(tracer.Thread(0))
39	if perf.GetRealTime() != uint64(dur.Nanoseconds()) {
40		t.Errorf("got %d, want %d nanoseconds for event duration", perf.GetRealTime(), dur.Nanoseconds())
41	}
42}
43