func makeToolsList(series string) tools.List {
var toolsVersion version.Binary
toolsVersion.Number = version.MustParse("1.26.0")
toolsVersion.Arch = arch.AMD64
toolsVersion.Series = series
return tools.List{{
Version: toolsVersion,
URL: fmt.Sprintf("http://example.com/tools/juju-%s.tgz", toolsVersion),
SHA256: "1234567890abcdef",
Size: 1024,
}}
}