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388
pkg/logger/rotation_test.go
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388
pkg/logger/rotation_test.go
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package logger
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import (
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"os"
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"path/filepath"
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"strings"
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"testing"
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"time"
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"go.uber.org/zap"
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)
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// TestLogRotation 测试日志轮转功能（T027）
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func TestLogRotation(t *testing.T) {
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// 创建临时目录
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tempDir := t.TempDir()
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appLogFile := filepath.Join(tempDir, "app-rotation.log")
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// 初始化日志系统，设置较小的 MaxSize 以便测试
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err := InitLoggers("info", false,
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LogRotationConfig{
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Filename: appLogFile,
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MaxSize: 1, // 1MB，写入足够数据后会触发轮转
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MaxBackups: 3,
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MaxAge: 7,
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Compress: false, // 不压缩以便检查
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},
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LogRotationConfig{
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Filename: filepath.Join(tempDir, "access-rotation.log"),
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MaxSize: 1,
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MaxBackups: 3,
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MaxAge: 7,
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Compress: false,
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},
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)
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if err != nil {
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t.Fatalf("InitLoggers failed: %v", err)
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}
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logger := GetAppLogger()
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// 写入大量日志数据以触发轮转（每条约100字节，写入15000条约1.5MB）
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largeMessage := strings.Repeat("a", 100)
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for i := 0; i < 15000; i++ {
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logger.Info(largeMessage,
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zap.Int("iteration", i),
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zap.String("data", largeMessage),
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)
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}
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// 刷新缓冲区
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if err := Sync(); err != nil {
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t.Fatalf("Sync failed: %v", err)
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}
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// 等待一小段时间确保文件写入完成
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time.Sleep(100 * time.Millisecond)
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// 验证主日志文件存在
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if _, err := os.Stat(appLogFile); os.IsNotExist(err) {
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t.Error("Main log file should exist")
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}
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// 检查是否有备份文件（轮转后的文件）
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files, err := filepath.Glob(filepath.Join(tempDir, "app-rotation-*.log"))
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if err != nil {
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t.Fatalf("Failed to glob backup files: %v", err)
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}
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// 由于写入了超过1MB的数据，应该触发至少一次轮转
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if len(files) == 0 {
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// 可能系统写入速度或lumberjack行为导致未立即轮转，检查主文件大小
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info, err := os.Stat(appLogFile)
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if err != nil {
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t.Fatalf("Failed to stat main log file: %v", err)
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}
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if info.Size() == 0 {
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t.Error("Log file should have content")
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}
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// 不强制要求必须轮转，因为取决于具体实现
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t.Logf("No rotation occurred, but main log file size: %d bytes", info.Size())
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} else {
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t.Logf("Found %d rotated backup file(s)", len(files))
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}
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}
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// TestMaxBackups 测试最大备份数限制（T027）
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func TestMaxBackups(t *testing.T) {
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// 创建临时目录
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tempDir := t.TempDir()
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appLogFile := filepath.Join(tempDir, "app-backups.log")
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// 初始化日志系统，设置 MaxBackups=2
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err := InitLoggers("info", false,
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LogRotationConfig{
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Filename: appLogFile,
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MaxSize: 1, // 1MB
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MaxBackups: 2, // 最多保留2个备份
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MaxAge: 7,
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Compress: false,
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},
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LogRotationConfig{
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Filename: filepath.Join(tempDir, "access-backups.log"),
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MaxSize: 1,
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MaxBackups: 2,
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MaxAge: 7,
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Compress: false,
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},
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)
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if err != nil {
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t.Fatalf("InitLoggers failed: %v", err)
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}
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logger := GetAppLogger()
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// 写入足够的数据触发多次轮转（每次1.5MB，共4.5MB应该触发3次轮转）
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largeMessage := strings.Repeat("b", 100)
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for round := 0; round < 3; round++ {
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for i := 0; i < 15000; i++ {
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logger.Info(largeMessage,
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zap.Int("round", round),
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zap.Int("iteration", i),
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)
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}
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Sync()
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time.Sleep(100 * time.Millisecond)
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}
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// 等待轮转完成
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time.Sleep(200 * time.Millisecond)
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// 检查备份文件数量
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files, err := filepath.Glob(filepath.Join(tempDir, "app-backups-*.log"))
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if err != nil {
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t.Fatalf("Failed to glob backup files: %v", err)
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}
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// 由于 MaxBackups=2，即使触发了多次轮转，也只应保留最多2个备份文件
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// （实际行为取决于 lumberjack 的实现细节，可能小于等于2）
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if len(files) > 2 {
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t.Errorf("Expected at most 2 backup files due to MaxBackups=2, got %d", len(files))
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}
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t.Logf("Found %d backup file(s) with MaxBackups=2", len(files))
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}
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// TestCompressionConfig 测试压缩配置（T027）
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func TestCompressionConfig(t *testing.T) {
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// 创建临时目录
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tempDir := t.TempDir()
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tests := []struct {
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name string
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compress bool
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}{
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{
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name: "compression enabled",
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compress: true,
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},
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{
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name: "compression disabled",
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compress: false,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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logFile := filepath.Join(tempDir, "app-"+tt.name+".log")
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err := InitLoggers("info", false,
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LogRotationConfig{
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Filename: logFile,
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MaxSize: 1,
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MaxBackups: 3,
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MaxAge: 7,
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Compress: tt.compress,
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},
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LogRotationConfig{
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Filename: filepath.Join(tempDir, "access-"+tt.name+".log"),
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MaxSize: 1,
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MaxBackups: 3,
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MaxAge: 7,
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Compress: tt.compress,
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},
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)
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if err != nil {
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t.Fatalf("InitLoggers failed: %v", err)
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}
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logger := GetAppLogger()
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// 写入一些日志
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for i := 0; i < 1000; i++ {
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logger.Info("test compression",
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zap.Int("id", i),
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zap.String("data", strings.Repeat("c", 50)),
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)
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}
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Sync()
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time.Sleep(100 * time.Millisecond)
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// 验证日志文件存在
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if _, err := os.Stat(logFile); os.IsNotExist(err) {
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t.Error("Log file should exist")
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}
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})
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}
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}
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// TestMaxAge 测试日志文件保留时间（T027）
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func TestMaxAge(t *testing.T) {
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// 创建临时目录
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tempDir := t.TempDir()
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// 初始化日志系统，设置 MaxAge=1 天
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err := InitLoggers("info", false,
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LogRotationConfig{
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Filename: filepath.Join(tempDir, "app-maxage.log"),
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MaxSize: 10,
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MaxBackups: 3,
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MaxAge: 1, // 1天
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Compress: false,
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},
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LogRotationConfig{
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Filename: filepath.Join(tempDir, "access-maxage.log"),
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MaxSize: 10,
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MaxBackups: 3,
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MaxAge: 1,
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Compress: false,
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},
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)
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if err != nil {
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t.Fatalf("InitLoggers failed: %v", err)
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}
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logger := GetAppLogger()
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// 写入日志
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logger.Info("test max age", zap.String("config", "maxage=1"))
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Sync()
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// 验证配置已应用（无法在单元测试中验证实际的清理行为，因为需要等待1天）
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// 这里只验证初始化没有错误
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if logger == nil {
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t.Error("Logger should be initialized with MaxAge config")
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}
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}
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// TestNewLumberjackLogger 测试 Lumberjack logger 创建（T027）
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func TestNewLumberjackLogger(t *testing.T) {
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// 创建临时目录
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tempDir := t.TempDir()
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tests := []struct {
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name string
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config LogRotationConfig
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}{
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{
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name: "standard config",
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config: LogRotationConfig{
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Filename: filepath.Join(tempDir, "test1.log"),
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MaxSize: 10,
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MaxBackups: 3,
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MaxAge: 7,
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Compress: true,
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},
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},
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{
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name: "minimal config",
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config: LogRotationConfig{
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Filename: filepath.Join(tempDir, "test2.log"),
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MaxSize: 1,
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MaxBackups: 1,
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MaxAge: 1,
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Compress: false,
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},
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},
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{
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name: "large config",
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config: LogRotationConfig{
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Filename: filepath.Join(tempDir, "test3.log"),
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MaxSize: 100,
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MaxBackups: 10,
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MaxAge: 30,
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Compress: true,
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},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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logger := newLumberjackLogger(tt.config)
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if logger == nil {
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t.Error("newLumberjackLogger should not return nil")
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}
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// 验证配置已正确设置
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if logger.Filename != tt.config.Filename {
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t.Errorf("Filename = %v, want %v", logger.Filename, tt.config.Filename)
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}
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if logger.MaxSize != tt.config.MaxSize {
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t.Errorf("MaxSize = %v, want %v", logger.MaxSize, tt.config.MaxSize)
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}
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if logger.MaxBackups != tt.config.MaxBackups {
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t.Errorf("MaxBackups = %v, want %v", logger.MaxBackups, tt.config.MaxBackups)
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}
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if logger.MaxAge != tt.config.MaxAge {
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t.Errorf("MaxAge = %v, want %v", logger.MaxAge, tt.config.MaxAge)
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}
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if logger.Compress != tt.config.Compress {
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t.Errorf("Compress = %v, want %v", logger.Compress, tt.config.Compress)
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}
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if !logger.LocalTime {
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t.Error("LocalTime should be true")
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}
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})
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}
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}
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// TestConcurrentLogging 测试并发日志写入（T027）
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func TestConcurrentLogging(t *testing.T) {
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// 创建临时目录
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tempDir := t.TempDir()
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// 初始化日志系统
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err := InitLoggers("info", false,
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LogRotationConfig{
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Filename: filepath.Join(tempDir, "app-concurrent.log"),
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MaxSize: 10,
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MaxBackups: 3,
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MaxAge: 7,
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Compress: false,
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},
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LogRotationConfig{
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Filename: filepath.Join(tempDir, "access-concurrent.log"),
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MaxSize: 10,
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MaxBackups: 3,
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MaxAge: 7,
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Compress: false,
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},
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)
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if err != nil {
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t.Fatalf("InitLoggers failed: %v", err)
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}
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logger := GetAppLogger()
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// 启动多个 goroutine 并发写入日志
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done := make(chan bool)
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goroutines := 10
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messagesPerGoroutine := 100
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for i := 0; i < goroutines; i++ {
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go func(id int) {
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for j := 0; j < messagesPerGoroutine; j++ {
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logger.Info("concurrent log message",
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zap.Int("goroutine", id),
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zap.Int("message", j),
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)
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}
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done <- true
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}(i)
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}
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// 等待所有 goroutine 完成
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for i := 0; i < goroutines; i++ {
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<-done
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}
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// 刷新缓冲区
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if err := Sync(); err != nil {
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t.Fatalf("Sync failed: %v", err)
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}
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// 验证日志文件存在且有内容
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logFile := filepath.Join(tempDir, "app-concurrent.log")
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info, err := os.Stat(logFile)
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if err != nil {
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t.Fatalf("Failed to stat log file: %v", err)
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}
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if info.Size() == 0 {
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t.Error("Log file should have content after concurrent writes")
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}
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t.Logf("Concurrent logging test completed, log file size: %d bytes", info.Size())
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}
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