FizzBuzz with Unit Test written using GoLang

fizzbuzz.go

package fizzbuzz

import "strconv"

func Fizzbuzz(n int) string {

	var name string = ""

	if n%3 == 0 {
		name = "Fizz"
	}
	if n%5 == 0 {
		name += "Buzz"
	}
	if name == "" {
		name = strconv.Itoa(n)
	}

	return name
}

fizzbuzz_test.go

package fizzbuzz

import "testing"

func TestFizzbuzz(t *testing.T) {
	cases := []struct {
		in   int
		want string
	}{
		{1, "1"},
		{2, "2"},
		{3, "Fizz"},
		{4, "4"},
		{5, "Buzz"},
		{15, "FizzBuzz"},
		{30, "FizzBuzz"},
	}

	for _, tt := range cases {
		actual := Fizzbuzz(tt.in)
		if actual != tt.want {
			t.Errorf("Fizzbuzz(%d): expected %q, actual %q", tt.in, tt.want, actual)
		}
	}

}