golang test模块

1 创建文件夹testing101

2 被测试程序

package testing101
func Sum(numbers []int) int {
	sum :=0
	for _,n :=range numbers {
		sum +=n
	}
	return sum
}

3 测试程序

package testing101

import (
	"testing"
)

func TestSum(t *testing.T) {
	numbers := []int{1, 2, 3, 4, 5}
	expected := 15
	actual := Sum(numbers)

	if actual != expected {
		t.Errorf("Expected the sum of %v to be %d but instead got %d!", numbers, expected, actual)

	}
}

　　测试结果

[ `go test -v` | done: 302.896837ms ]go test -v
	=== RUN   TestSum
	--- PASS: TestSum (0.00s)
	PASS
	ok  	testing101	0.005s
[ ~/mysource/go/src/testing101/ ] #