149 lines
3.5 KiB
Go
149 lines
3.5 KiB
Go
// Copyright 2023 Harness, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package lock
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import (
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"context"
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"errors"
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"sync"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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)
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func Test_inMemMutex_Lock(t *testing.T) {
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manager := NewInMemory(Config{
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App: "gitness",
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Namespace: "pullreq",
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Expiry: 3 * time.Second,
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Tries: 10,
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RetryDelay: 300 * time.Millisecond,
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})
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wg := sync.WaitGroup{}
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wg.Add(1)
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go func() {
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defer wg.Done()
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time.Sleep(500 * time.Millisecond)
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mx, err := manager.NewMutex("key1")
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if err != nil {
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t.Errorf("mutex not created, err: %v", err)
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return
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}
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if err := mx.Lock(context.Background()); err != nil {
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t.Errorf("error from go routine while locking %s, err: %v", mx.Key(), err)
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return
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}
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err = mx.Unlock(context.Background())
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require.NoError(t, err)
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}()
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mx, err := manager.NewMutex("key1")
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if err != nil {
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t.Errorf("mutex not created, err: %v", err)
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return
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}
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if err := mx.Lock(context.Background()); err != nil {
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t.Errorf("error while locking %v, err: %v", mx.Key(), err)
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}
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time.Sleep(1 * time.Second)
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err = mx.Unlock(context.Background())
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require.NoError(t, err)
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wg.Wait()
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}
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func Test_inMemMutex_MaxTries(t *testing.T) {
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manager := NewInMemory(Config{
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App: "gitness",
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Namespace: "pullreq",
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Expiry: 1 * time.Second,
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Tries: 2,
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RetryDelay: 300 * time.Millisecond,
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})
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wg := sync.WaitGroup{}
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wg.Add(1)
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go func() {
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defer wg.Done()
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time.Sleep(500 * time.Millisecond)
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mx, err := manager.NewMutex("key1")
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if err != nil {
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t.Errorf("mutex not created, err: %v", err)
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return
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}
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err = mx.Lock(context.Background())
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if err == nil {
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t.Errorf("error should be returned while locking %s instead of nil", mx.Key())
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return
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}
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var errLock *Error
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if !errors.As(err, &errLock) {
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t.Errorf("expected error lock.Error, got: %v", err)
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return
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}
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if errLock.Kind != ErrorKindMaxRetriesExceeded {
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t.Errorf("expected lock.MaxRetriesExceeded, got: %v", err)
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return
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}
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}()
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mx, err := manager.NewMutex("key1")
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if err != nil {
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t.Errorf("mutex not created, err: %v", err)
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return
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}
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if err := mx.Lock(context.Background()); err != nil {
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t.Errorf("error while locking %v, err: %v", mx.Key(), err)
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}
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time.Sleep(1 * time.Second)
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err = mx.Unlock(context.Background())
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require.NoError(t, err)
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wg.Wait()
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}
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func Test_inMemMutex_LockAndWait(t *testing.T) {
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wg := &sync.WaitGroup{}
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manager := NewInMemory(Config{
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App: "gitness",
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Namespace: "pullreq",
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Expiry: 3 * time.Second,
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Tries: 10,
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RetryDelay: 300 * time.Millisecond,
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})
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fn := func(n int) {
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mx, err := manager.NewMutex("Key1")
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if err != nil {
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t.Errorf("mutex not created routine %d, err: %v", n, err)
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return
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}
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defer func() {
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if err := mx.Unlock(context.Background()); err != nil {
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t.Errorf("failed to unlock %d", n)
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}
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wg.Done()
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}()
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if err := mx.Lock(context.Background()); err != nil {
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t.Errorf("failed to lock %d", n)
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}
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time.Sleep(50 * time.Millisecond)
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}
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wg.Add(3)
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go fn(1)
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go fn(2)
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go fn(3)
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wg.Wait()
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}
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