78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
package observability_test
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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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"iop/packages/go/observability"
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)
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func TestNewLoggerWithFile_EmptyPathFallsBackToStderr(t *testing.T) {
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logger, err := observability.NewLoggerWithFile("info", false, "")
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if err != nil {
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t.Fatalf("NewLoggerWithFile: %v", err)
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}
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if logger == nil {
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t.Fatal("logger is nil")
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}
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_ = logger.Sync()
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}
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func TestNewLoggerWithFile_CreatesParentDirAndFile(t *testing.T) {
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dir := t.TempDir()
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logPath := filepath.Join(dir, "logs", "edge.log")
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logger, err := observability.NewLoggerWithFile("info", false, logPath)
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if err != nil {
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t.Fatalf("NewLoggerWithFile: %v", err)
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}
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logger.Info("hello-from-test")
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_ = logger.Sync()
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info, err := os.Stat(logPath)
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if err != nil {
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t.Fatalf("stat log file: %v", err)
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}
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if info.IsDir() {
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t.Fatalf("log path is a directory: %s", logPath)
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}
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if info.Size() == 0 {
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t.Fatalf("log file is empty: %s", logPath)
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}
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contents, err := os.ReadFile(logPath)
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if err != nil {
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t.Fatalf("read log file: %v", err)
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}
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if !strings.Contains(string(contents), "hello-from-test") {
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t.Fatalf("log file missing entry; contents=%q", string(contents))
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}
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}
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func TestNewLoggerWithFile_AppendsToExistingFile(t *testing.T) {
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dir := t.TempDir()
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logPath := filepath.Join(dir, "edge.log")
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first, err := observability.NewLoggerWithFile("info", false, logPath)
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if err != nil {
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t.Fatalf("first NewLoggerWithFile: %v", err)
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}
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first.Info("entry-one")
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_ = first.Sync()
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second, err := observability.NewLoggerWithFile("info", false, logPath)
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if err != nil {
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t.Fatalf("second NewLoggerWithFile: %v", err)
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}
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second.Info("entry-two")
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_ = second.Sync()
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contents, err := os.ReadFile(logPath)
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if err != nil {
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t.Fatalf("read log file: %v", err)
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}
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if !strings.Contains(string(contents), "entry-one") || !strings.Contains(string(contents), "entry-two") {
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t.Fatalf("expected both entries in log file; contents=%q", string(contents))
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}
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}
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