Lots more changes

cmd/scratchbox/access_log_writer_test.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"bytes"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"scratchbox/internal/config"
+)
+
+func TestNewAccessLogWriterDisabled(t *testing.T) {
+	t.Parallel()
+
+	cfg := config.Default()
+	cfg.Server.AccessLog.Enabled = false
+	writer, closeFn, err := newAccessLogWriter(cfg)
+	if err != nil {
+		t.Fatalf("newAccessLogWriter() error = %v", err)
+	}
+	if writer == nil {
+		t.Fatalf("newAccessLogWriter() writer = nil")
+	}
+	if err := closeFn(); err != nil {
+		t.Fatalf("closeFn() error = %v", err)
+	}
+}
+
+func TestRollingFileWriterRotatesAndKeepsBackups(t *testing.T) {
+	t.Parallel()
+
+	logPath := filepath.Join(t.TempDir(), "access.log")
+	w, err := newRollingFileWriter(logPath, 10, 2)
+	if err != nil {
+		t.Fatalf("newRollingFileWriter() error = %v", err)
+	}
+	defer w.Close()
+
+	_, _ = w.Write([]byte("12345"))
+	_, _ = w.Write([]byte("67890"))
+	_, _ = w.Write([]byte("abc"))
+	_, _ = w.Write([]byte("defghijkl"))
+
+	if err := w.Close(); err != nil {
+		t.Fatalf("Close() error = %v", err)
+	}
+
+	current, err := os.ReadFile(logPath)
+	if err != nil {
+		t.Fatalf("ReadFile(current) error = %v", err)
+	}
+	backup1, err := os.ReadFile(logPath + ".1")
+	if err != nil {
+		t.Fatalf("ReadFile(backup1) error = %v", err)
+	}
+	backup2, err := os.ReadFile(logPath + ".2")
+	if err != nil {
+		t.Fatalf("ReadFile(backup2) error = %v", err)
+	}
+	if !bytes.Equal(current, []byte("defghijkl")) {
+		t.Fatalf("current log = %q, want %q", string(current), "defghijkl")
+	}
+	if !bytes.Equal(backup1, []byte("abc")) {
+		t.Fatalf("backup1 log = %q, want %q", string(backup1), "abc")
+	}
+	if !bytes.Equal(backup2, []byte("1234567890")) {
+		t.Fatalf("backup2 log = %q, want %q", string(backup2), "1234567890")
+	}
+}