package parallelism import ( "fmt" "os" "sort" "testing" ) func TestParallelism(t *testing.T) { // Calculate the MD5 sum of all files under the specified directory, // then print the results sorted by path name. m, err := MD5All(os.Args[1]) if err != nil { fmt.Println(err) return } var paths []string for path := range m { paths = append(paths, path) } sort.Strings(paths) for _, path := range paths { fmt.Printf("%x %s\n", m[path], path) } }