gitea/modules/globallock/globallock_test.go

97 lines
1.9 KiB
Go

// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package globallock
import (
"context"
"os"
"sync"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestLockAndDo(t *testing.T) {
t.Run("redis", func(t *testing.T) {
url := "redis://127.0.0.1:6379/0"
if os.Getenv("CI") == "" {
// Make it possible to run tests against a local redis instance
url = os.Getenv("TEST_REDIS_URL")
if url == "" {
t.Skip("TEST_REDIS_URL not set and not running in CI")
return
}
}
oldDefaultLocker := defaultLocker
oldInitFunc := initFunc
defer func() {
defaultLocker = oldDefaultLocker
initFunc = oldInitFunc
if defaultLocker == nil {
initOnce = sync.Once{}
}
}()
initOnce = sync.Once{}
initFunc = func() {
defaultLocker = NewRedisLocker(url)
}
testLockAndDo(t)
require.NoError(t, defaultLocker.(*redisLocker).Close())
})
t.Run("memory", func(t *testing.T) {
oldDefaultLocker := defaultLocker
oldInitFunc := initFunc
defer func() {
defaultLocker = oldDefaultLocker
initFunc = oldInitFunc
if defaultLocker == nil {
initOnce = sync.Once{}
}
}()
initOnce = sync.Once{}
initFunc = func() {
defaultLocker = NewMemoryLocker()
}
testLockAndDo(t)
})
}
func testLockAndDo(t *testing.T) {
const concurrency = 1000
ctx := context.Background()
count := 0
wg := sync.WaitGroup{}
wg.Add(concurrency)
for i := 0; i < concurrency; i++ {
go func() {
defer wg.Done()
err := LockAndDo(ctx, "test", func(ctx context.Context) error {
count++
// It's impossible to acquire the lock inner the function
ok, err := TryLockAndDo(ctx, "test", func(ctx context.Context) error {
assert.Fail(t, "should not acquire the lock")
return nil
})
assert.False(t, ok)
assert.NoError(t, err)
return nil
})
require.NoError(t, err)
}()
}
wg.Wait()
assert.Equal(t, concurrency, count)
}