defer zipWriter.Close()
	rawDataFn := func(r io.Reader, filename string, sz int) error {
		header, zerr := zip.FileInfoHeader(dummyFileInfo{
			name:    filename,
			size:    int64(sz),
			mode:    0o600,
			modTime: time.Now(),
			isDir:   false,
			sys:     nil,
		})
		if zerr != nil {
			adminLogIf(ctx, zerr)
			return nil
		}
		header.Method = zip.Deflate

		lc.SetPredictionHeaders(w, tc.obj)
		if expHdrs, ok := w.Header()[xhttp.AmzExpiration]; ok && !strings.Contains(expHdrs[0], lc.Rules[tc.expRuleID].ID) {
			t.Fatalf("Test %d: Expected %s header", i+1, xhttp.AmzExpiration)
		}
		if transHdrs, ok := w.Header()[xhttp.MinIOTransition]; ok {
			if !strings.Contains(transHdrs[0], lc.Rules[tc.transRuleID].ID) {
				t.Fatalf("Test %d: Expected %s header", i+1, xhttp.MinIOTransition)
			}