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- // Copyright 2018 Google LLC
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
-
- package leakcheck
-
- import (
- "fmt"
- "strings"
- "testing"
- "time"
- )
-
- type testErrorfer struct {
- errorCount int
- errors []string
- }
-
- func (e *testErrorfer) Errorf(format string, args ...interface{}) {
- e.errors = append(e.errors, fmt.Sprintf(format, args...))
- e.errorCount++
- }
-
- func TestCheck(t *testing.T) {
- const leakCount = 3
- for i := 0; i < leakCount; i++ {
- go func() { time.Sleep(2 * time.Second) }()
- }
- if ig := interestingGoroutines(); len(ig) == 0 {
- t.Error("blah")
- }
- e := &testErrorfer{}
- check(e, time.Second)
- if e.errorCount != leakCount {
- t.Errorf("check found %v leaks, want %v leaks", e.errorCount, leakCount)
- t.Logf("leaked goroutines:\n%v", strings.Join(e.errors, "\n"))
- }
- check(t, 3*time.Second)
- }
-
- func ignoredTestingLeak(d time.Duration) {
- time.Sleep(d)
- }
-
- func TestCheckRegisterIgnore(t *testing.T) {
- RegisterIgnoreGoroutine("ignoredTestingLeak")
- const leakCount = 3
- for i := 0; i < leakCount; i++ {
- go func() { time.Sleep(2 * time.Second) }()
- }
- go func() { ignoredTestingLeak(3 * time.Second) }()
- if ig := interestingGoroutines(); len(ig) == 0 {
- t.Error("blah")
- }
- e := &testErrorfer{}
- check(e, time.Second)
- if e.errorCount != leakCount {
- t.Errorf("check found %v leaks, want %v leaks", e.errorCount, leakCount)
- t.Logf("leaked goroutines:\n%v", strings.Join(e.errors, "\n"))
- }
- check(t, 3*time.Second)
- }
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