package iteration import ( "fmt" "testing" ) func ExampleRepeat() { repeated := Repeat("ab", 5) fmt.Println(repeated) // Output: ababababab } func TestRepeat(t *testing.T) { repeated := Repeat("a", 5) expected := "aaaaa" if repeated != expected { t.Errorf("expected %q but got %q", expected, repeated) } } func BenchmarkRepeat(b *testing.B) { for i := 0; i < b.N; i++ { Repeat("a", 5) } }