prashantv / gostub Goto Github PK

Hi, I am new to GoLang, please pardon me in case this issue turns out to be lame.

Here is what I tried

import (
	"bytes"
	"testing"

	"github.com/prashantv/gostub"
)

// The function to stub
func RandomBytes(l uint8) ([]byte, error) {
	return []byte{1, 2, 3, 4}, nil
}

// The function to test
func PasswordHash(password string) ([]byte, error) {
	return RandomBytes(4)
}

// Test
func TestPasswordHash(t *testing.T) {
	var functionPtr = RandomBytes
	defer gostub.Stub(&functionPtr, func(l uint8) ([]byte, error) {
                println("Stub takes over") // This is never executed
		return []byte{5, 5, 5, 5}, nil
	}).Reset()

	hash, _ := PasswordHash("pass")
	if bytes.Compare(hash, []byte{5, 5, 5, 5}) != 0 {
		t.Error("Hash differs, stub didn't work. RandomSalt=", hash) // Test fails!
	}
}

So basically I am unable to stub the RandomBytes function.

Reproduced in playground

1. go get -u -v github.com/prashantv/gostub
   then output is:

../../github.com/prashantv/gostub/env.go:7:15: error: reference to undefined identifier ¡®os.LookupEnv¡¯
v, ok := os.LookupEnv(k)
^
../../github.com/prashantv/gostub/env.go:24:5: error: reference to undefined identifier ¡®os.Unsetenv¡¯
os.Unsetenv(k)
^
../../github.com/prashantv/gostub/env.go:33:7: error: reference to undefined identifier ¡®os.Unsetenv¡¯
os.Unsetenv(k)

what is wrong with it ?

I can use "Stub" in my project , but when i use "go test", it shows error.

hi I have a question here how to substitute a func in the init of some package.
One example:

package http
func AuthenticationFilter(ctx context.Context) {
....
}
func init() {
beego.InsertFilter("/", beego.BeforeExec, AuthenticationFilter)
}

I want to substitute AuthenticationFilter before the http package initialize.
stubs.Stub(&http.AuthenticationFilter, func (ctx *context.Context) {
...
})
How should I do? Thx a lot

gostub helps me a lot. I really wanna see it in avelino/awesome-go: A curated list of awesome Go frameworks, libraries and software

Hello~ community maintainer:
the community has not released a version for a long time, can you release a version?