Golang inheritance example

inheritance_test.go

package encoding

import (
	"github.com/stretchr/testify/assert"
	"testing"
)

type genericEntity struct {
	ID      int64
	Name    string
	Texture []byte
}

type tileEntity struct {
	genericEntity
}

func NewTileEntity(id int64, name string, texture []byte) *tileEntity {
	return &tileEntity{
		genericEntity: genericEntity{
			ID:      id,
			Name:    name,
			Texture: texture,
		},
	}
}

func TestInheritanceOfNonPointers(t *testing.T) {
	tileEntity := tileEntity{genericEntity{
		ID:      23,
		Name:    "this is a cool tile",
		Texture: []byte{0x64, 0x45, 0x11},
	}}
	
	assert.Equal(t, 23, tileEntity.ID)
	assert.Equal(t, "this is a cool tile", tileEntity.Name)
	assert.Equal(t, []byte{0x64, 0x45, 0x11}, tileEntity.Texture)
}

func TestInheritance(t *testing.T) {
	tileEntity := NewTileEntity(
		23, 
		"this is a cool tile", 
		[]byte{0x64, 0x45, 0x11},
	)
	
	assert.Equal(t, 23, tileEntity.ID)
	assert.Equal(t, "this is a cool tile", tileEntity.Name)
	assert.Equal(t, []byte{0x64, 0x45, 0x11}, tileEntity.Texture)
}