partsMetadata[index] = fi
	}

	// Guess content-type from the extension if possible.
	if userDefined["content-type"] == "" {
		userDefined["content-type"] = mimedb.TypeByExtension(path.Ext(object))
	}

	// if storageClass is standard no need to save it as part of metadata.
	if userDefined[xhttp.AmzStorageClass] == storageclass.STANDARD {
		delete(userDefined, xhttp.AmzStorageClass)
	}

		},
		{
			testName: "basic-dir",
			entry:    "src/dir/",
			dir:      "src/",
			sep:      slashSeparator,
			want:     true,
		},
		{
			testName: "deeper-file",
			entry:    "src/dir/somewhere.ext",
			dir:      "src/",
			sep:      slashSeparator,
			want:     false,
		},
		{
			testName: "deeper-dir",
			entry:    "src/dir/somewhere/",
			dir:      "src/",
			sep:      slashSeparator,

	failedSize      int64
	pendingCount    uint64
	failedCount     uint64
}

type getSizeFn func(item scannerItem) (sizeSummary, error)

// transformMetaDir will transform a directory to prefix/file.ext
func (i *scannerItem) transformMetaDir() {
	split := strings.Split(i.prefix, SlashSeparator)
	if len(split) > 1 {
		i.prefix = pathJoin(split[:len(split)-1]...)
	} else {
		i.prefix = ""
	}