1 文件名

xxx_test.go

2 函数名

(1) function.go

package fk
func square(op int) int {
    return op*op + 1
}

(2) function_test.go

package fk
import "testing"
func Test111(t *testing.T) {
    inputs := [...]int{1, 2, 3}
    expected := [...]int{1, 4, 9}
    for key, val := range inputs {
        ret := square(val)
        if ret != expected[key] {
            t.Errorf("input is %d, expected %d, actual %d", key, expected[key], ret)
        }
    }
}