type_test.go

package goutil

import (
	"reflect"
	"testing"

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

type A struct {
	B
}

func (A) X0()  {}
func (*A) X1() {}

type B struct {
}

func (B) Y0()  {}
func (*B) Y1() {}

func TestIsCompositionMethod(t *testing.T) {
	assert.False(t, IsCompositionMethod(reflect.TypeOf(A{}).Method(0)))
	assert.True(t, IsCompositionMethod(reflect.TypeOf(A{}).Method(1)))

	assert.False(t, IsCompositionMethod(reflect.TypeOf(&A{}).Method(0)), reflect.TypeOf(&A{}).Method(0))
	assert.False(t, IsCompositionMethod(reflect.TypeOf(&A{}).Method(1)))
	assert.True(t, IsCompositionMethod(reflect.TypeOf(&A{}).Method(2)))
	assert.True(t, IsCompositionMethod(reflect.TypeOf(&A{}).Method(3)))

	assert.False(t, IsCompositionMethod(reflect.TypeOf(B{}).Method(0)))

	assert.False(t, IsCompositionMethod(reflect.TypeOf(&B{}).Method(0)))
	assert.False(t, IsCompositionMethod(reflect.TypeOf(&B{}).Method(1)))
}