hdr := &Header{Name: "small.txt"}
		if err := tw.WriteHeader(hdr); err != nil {
			t.Fatalf("WriteHeader() = %v, want nil", err)
		}
		if err := tw.Close(); err != nil {
			t.Fatalf("Close() = %v, want nil", err)
		}
		if _, err := tw.Write([]byte("Kilts")); err != ErrWriteAfterClose {
			t.Fatalf("Write() = %v, want %v", err, ErrWriteAfterClose)
		}
		if err := tw.Flush(); err != ErrWriteAfterClose {

		if f.method == Deflate {
			var buf bytes.Buffer
			w, err := flate.NewWriter(&buf, flate.BestSpeed)
			if err != nil {
				t.Fatalf("flate.NewWriter err = %v", err)
			}
			_, err = w.Write(f.content)
			if err != nil {
				t.Fatalf("flate Write err = %v", err)
			}
			err = w.Close()
			if err != nil {
				t.Fatalf("flate Writer.Close err = %v", err)
			}
			compressedContent = buf.Bytes()