multiply_test.go

package multiplystrings

import (
	"testing"

	"github.com/WindomZ/testify/assert"
)

func Test_multiply(t *testing.T) {
	assert.Equal(t, "0", multiply("", ""))
	assert.Equal(t, "0", multiply("1", "0"))
	assert.Equal(t, "1", multiply("1", "1"))
	assert.Equal(t, "2", multiply("1", "2"))
	assert.Equal(t, "20", multiply("10", "2"))
	assert.Equal(t, "276", multiply("12", "23"))
	assert.Equal(t, "5535", multiply("123", "45"))
	assert.Equal(t, "98901", multiply("999", "99"))
}

func Benchmark_multiply(b *testing.B) {
	b.StopTimer()
	b.ReportAllocs()
	b.StartTimer()
	b.RunParallel(func(pb *testing.PB) {
		for pb.Next() {
			multiply("1", "0")
			multiply("1", "1")
			multiply("10", "2")
			multiply("12", "23")
			multiply("123", "45")
			multiply("999", "99")
		}
	})
}