package console

import (
	"fmt"
	"testing"
)

func TestTopWithOther(t *testing.T) {
	m := map[string]int64{"_other": 5}
	for i := 0; i < 12; i++ {
		m[fmt.Sprintf("C%02d", i)] = int64(100 - i) // C00 largest, C11 smallest
	}
	got := topWithOther(m, 10)
	if len(got) != 11 {
		t.Fatalf("len = %d, want 10 + _other: %v", len(got), got)
	}
	if got["_other"] != 5+89+90 { // C10=90, C11=89, plus the existing 5
		t.Fatalf("_other = %d", got["_other"])
	}
	if _, ok := got["C10"]; ok {
		t.Fatal("the 11th largest survived")
	}
	if len(topWithOther(nil, 10)) != 0 || topWithOther(nil, 10) == nil {
		t.Fatal("nil in must be an empty, non-nil map out")
	}
}