103 lines
2.2 KiB
Go
103 lines
2.2 KiB
Go
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package loggerx_test
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import (
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"context"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"sync"
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"testing"
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"github.com/yuninks/loggerx"
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)
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func readAllLogs(t *testing.T, dir string) string {
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t.Helper()
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var sb strings.Builder
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files, _ := filepath.Glob(filepath.Join(dir, "*.log"))
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for _, f := range files {
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b, err := os.ReadFile(f)
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if err != nil {
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t.Fatalf("读取 %s: %v", f, err)
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}
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sb.Write(b)
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}
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return sb.String()
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}
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// 写入量远超异步队列容量（1000）时的行为
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func TestAsyncQueueOverflow(t *testing.T) {
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dir := t.TempDir()
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l := loggerx.NewLogger(context.Background(), loggerx.SetDir(dir), loggerx.SetWriteAsync())
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const n = 5000
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done := make(chan struct{})
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go func() {
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defer close(done)
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for i := 0; i < n; i++ {
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l.Infof(context.Background(), "OVF-%d", i)
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}
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}()
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// 等写完，再关闭
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<-done
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if err := l.Close(); err != nil {
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t.Fatalf("Close: %v", err)
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}
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content := readAllLogs(t, dir)
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missing := 0
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for i := 0; i < n; i++ {
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if !strings.Contains(content, fmt.Sprintf(`OVF-%d"`, i)) {
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missing++
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}
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}
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t.Logf("写入 %d 条，落盘缺失 %d 条，文件字节=%d", n, missing, len(content))
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if missing > 0 {
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t.Errorf("队列溢出场景丢日志 %d 条", missing)
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}
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}
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// 超过队列容量且「边写边关闭」：不能永久阻塞
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func TestAsyncOverflowConcurrentClose(t *testing.T) {
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dir := t.TempDir()
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l := loggerx.NewLogger(context.Background(), loggerx.SetDir(dir), loggerx.SetWriteAsync())
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const n = 5000
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var 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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for i := 0; i < n; i++ {
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l.Infof(context.Background(), "CLOSE-%d", i)
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}
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}()
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// 写一半就关
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closeDone := make(chan error, 1)
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go func() { closeDone <- l.Close() }()
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waitWrite := make(chan struct{})
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go func() { wg.Wait(); close(waitWrite) }()
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// 两者都必须在合理时间内结束，否则就是死锁
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for i := 0; i < 2; i++ {
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select {
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case err := <-closeDone:
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if err != nil {
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t.Errorf("Close 返回错误: %v", err)
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}
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closeDone = nil
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case <-waitWrite:
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waitWrite = nil
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}
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if closeDone == nil && waitWrite == nil {
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break
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}
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}
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if closeDone != nil || waitWrite != nil {
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t.Fatal("写入或 Close 卡死（死锁）")
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}
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}
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