extra/channels/fanin_test.go

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2022-05-01 21:50:12 +03:00
package channels
import (
"reflect"
"sort"
"testing"
)
func TestFanIn(t *testing.T) {
type args struct {
chans [][]int
}
tests := []struct {
name string
args args
want []int
}{
{
name: "test fanin",
args: args{
chans: [][]int{
{1, 2, 3},
{4, 5, 6},
{7, 8, 9},
},
},
want: []int{1, 2, 3, 4, 5, 6, 7, 8, 9},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got := []int{}
chans := make([]chan int, len(tt.args.chans))
for i, v := range tt.args.chans {
func(i int, v []int) {
chans[i] = make(chan int, len(v))
go func(i int, v []int) {
for _, v2 := range v {
chans[i] <- v2
}
close(chans[i])
}(i, v)
}(i, v)
}
ch := FanIn(chans...)
for o := range ch {
got = append(got, o)
}
sort.Ints(got)
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("FanIn() = %v, want %v", got, tt.want)
}
})
}
}