Mocking object with methods named the same as testify's ones

[frux]

Hi! I need to mock an interface which has a method called On.

type MyMockedObj struct {}

func (obj *MyMockedObj) On() error {
    arguments := obj.Called()

    return arguments.Error(0)
}


func TestThis() {
    obj := Obj{}

    obj.On("On").Return(nil) // Error: obj.On("On").Return undefined (type error has no field or method Return)
}

How I supposed to do that?

[brackendawson]

Use obj.Mock.On to access the overidden On method:

package kata_test

import (
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/mock"
)

type MyMockedObj struct {
	mock.Mock
}

func (obj *MyMockedObj) On() error {
	arguments := obj.Called()

	return arguments.Error(0)
}

func TestThis(t *testing.T) {
	obj := &MyMockedObj{}
	defer obj.AssertExpectations(t)
	obj.Mock.On("On").Return(nil)
	err := obj.On()
	assert.NoError(t, err)
}