yml2213
5f547546c3
- dailyFileWriter 按天轮转：跨天自动切换到新文件（app-20260804.log） - LOG_RETAIN_DAYS 控制保留天数（默认 30），到期自动删除 - docker-compose 透传 LOG_RETAIN_DAYS，README 更新环境变量说明 - 补充轮转/清理单测
48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
package applog
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import (
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"os"
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"path/filepath"
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"testing"
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"time"
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)
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func TestDailyFileWriterRotatesAndCleans(t *testing.T) {
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dir := t.TempDir()
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logFile := filepath.Join(dir, "app.log")
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w, err := newDailyFileWriter(logFile)
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if err != nil {
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t.Fatalf("new writer: %v", err)
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}
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defer w.Close()
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// 写入当天日志，文件应按 app-YYYYMMDD.log 命名
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today := time.Now().Format("20060102")
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if _, err := w.Write([]byte("line1\n")); err != nil {
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t.Fatalf("write: %v", err)
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}
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todayPath := filepath.Join(dir, "app-"+today+".log")
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if _, err := os.Stat(todayPath); err != nil {
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t.Fatalf("today log file missing: %v", err)
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}
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// 旧格式 app.log 不应被创建
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if _, err := os.Stat(logFile); err == nil {
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t.Fatalf("old-style app.log should not be created")
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}
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// 构造过期文件，cleanup 应删除（保留 30 天，这里用 3 天验证）
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old := filepath.Join(dir, "app-20260701.log")
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if err := os.WriteFile(old, []byte("old"), 0o644); err != nil {
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t.Fatalf("create old file: %v", err)
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}
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w.cleanup(time.Now())
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if _, err := os.Stat(old); err == nil {
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t.Fatalf("old log file should be cleaned")
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}
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// 当天的文件应保留
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if _, err := os.Stat(todayPath); err != nil {
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t.Fatalf("today log file should be kept")
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}
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}
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