Random tests are failing. I have run some of those falling tests on the local machine and they are passed.
But tests with the same values fail on the web.

//My solution
func CreateIterator(fn func(int) int, n int) func(int) int {
var f = func(v int) int {
return fn(v) * n
}
return f
}

//Some tests
func TestCreateIterator(t *testing.T) {
type args struct {
fn func(int) int
val int
times int
}
tests := []struct {
name string
args args
want int
}{
{"Test 1", args{func(val int) int { return val * 2},2, 2}, 8},
{"Test 2", args{func(val int) int { return (val + 14) * 7},213, 7},11123},
{"Test 3", args{func(val int) int { return (40 - val) * 5},77, 3},-555},
{"Test 4", args{func(val int) int { return (10 - val) * 9},27, 2},-306},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var fn = CreateIterator(tt.args.fn, tt.args.times)
var got = fn(tt.args.val)
assert.Equal(t,tt.want, got)
})
}
}

Hey folks! Does anybody knows does Morse dictionary exist for GO exacltly for this task or I should use some third party lib?