package main

import (
	"bufio"
	"bytes"
	"testing"
)

func TestCorrupted(t *testing.T) {
	cases := []struct {
		Name     string
		Expected int
		Input    string
	}{
		{"example", 161, "xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))"},
		{"intact1", 6, "mul(2,3)"},
		{"corrupt1", 0, "mul(4*"},
		{"corrupt2", 0, "mul(6,9!"},
		{"corrupt3", 0, "?(12,34)"},
		{"corrupt4", 0, "mul ( 2 , 4 )"},
	}
	for _, c := range cases {
		buf := new(bytes.Buffer)
		buf.WriteString(c.Input)
		r := bufio.NewReader(buf)

		actual := process(r)
		if actual != c.Expected {
			t.Errorf("Expected %d; got %d", c.Expected, actual)
		}
	}
}