Go 的单元测试

package main

import "math"

type cube struct {
 sisi float64
}
func (k cube) volume() float64 {
 return math.pow(k.sisi, 3)
}
func (k cube) area() float64 {
 return math.pow(k.sisi, 2) * 6
}
func (k cube) circumference() float64 {
 return k.sisi * 12
}

package main
import "testing"
var (
cube cube = cube{4}
volume should float64 = 64
area should float64 = 96
circumference should float64 = 48
)
func testcalculatevolume(t *testing.t) {
t.logf("volume : %.2f", cube.volume())
if cube.volume() != volumeshould {
t.errorf("wrong! should be %.2f", volumeshould)
}
}
func testcalculatesurface(t *testing.t) {
t.logf("area : %.2f", cube.area())
if cube.area() != areashould {
t.errorf("wrong! should be %.2f", areashould)
}
}
func testcalculateperimeter(t *testing.t) {
t.logf("perimeter : %.2f", cube.perimeter())
if cube.perimeter() != circumferenceshould {
t.errorf("wrong! should be %.2f", circumferenceshould)
}
}

func (k Cube) Perimeter() float64 {
return k.Side * 15
}