161 lines
3.2 KiB
Go
161 lines
3.2 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package conversion
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import (
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"math/rand"
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"reflect"
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"testing"
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"github.com/google/gofuzz"
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)
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func TestDeepCopy(t *testing.T) {
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semantic := EqualitiesOrDie()
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f := fuzz.New().NilChance(.5).NumElements(0, 100)
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table := []interface{}{
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map[string]string{},
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int(5),
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"hello world",
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struct {
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A, B, C struct {
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D map[string]int
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}
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X []int
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Y []byte
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}{},
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}
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for _, obj := range table {
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obj2, err := NewCloner().DeepCopy(obj)
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if err != nil {
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t.Errorf("Error: couldn't copy %#v", obj)
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continue
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}
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if e, a := obj, obj2; !semantic.DeepEqual(e, a) {
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t.Errorf("expected %#v\ngot %#v", e, a)
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}
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obj3 := reflect.New(reflect.TypeOf(obj)).Interface()
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f.Fuzz(obj3)
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obj4, err := NewCloner().DeepCopy(obj3)
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if err != nil {
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t.Errorf("Error: couldn't copy %#v", obj)
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continue
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}
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if e, a := obj3, obj4; !semantic.DeepEqual(e, a) {
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t.Errorf("expected %#v\ngot %#v", e, a)
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}
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f.Fuzz(obj3)
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}
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}
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func copyOrDie(t *testing.T, in interface{}) interface{} {
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out, err := NewCloner().DeepCopy(in)
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if err != nil {
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t.Fatalf("DeepCopy failed: %#q: %v", in, err)
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}
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return out
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}
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func TestDeepCopySliceSeparate(t *testing.T) {
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x := []int{5}
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y := copyOrDie(t, x).([]int)
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x[0] = 3
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if y[0] == 3 {
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t.Errorf("deep copy wasn't deep: %#q %#q", x, y)
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}
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}
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func TestDeepCopyArraySeparate(t *testing.T) {
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x := [1]int{5}
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y := copyOrDie(t, x).([1]int)
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x[0] = 3
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if y[0] == 3 {
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t.Errorf("deep copy wasn't deep: %#q %#q", x, y)
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}
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}
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func TestDeepCopyMapSeparate(t *testing.T) {
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x := map[string]int{"foo": 5}
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y := copyOrDie(t, x).(map[string]int)
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x["foo"] = 3
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if y["foo"] == 3 {
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t.Errorf("deep copy wasn't deep: %#q %#q", x, y)
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}
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}
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func TestDeepCopyPointerSeparate(t *testing.T) {
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z := 5
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x := &z
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y := copyOrDie(t, x).(*int)
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*x = 3
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if *y == 3 {
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t.Errorf("deep copy wasn't deep: %#q %#q", x, y)
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}
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}
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func TestDeepCopyStruct(t *testing.T) {
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type Foo struct {
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A int
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}
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type Bar struct {
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Foo
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F *Foo
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}
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a := &Bar{Foo{1}, &Foo{2}}
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b := copyOrDie(t, a).(*Bar)
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a.A = 3
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a.F.A = 4
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if b.A != 1 || b.F.A != 2 {
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t.Errorf("deep copy wasn't deep: %#v, %#v", a, b)
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}
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}
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var result interface{}
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func BenchmarkDeepCopy(b *testing.B) {
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table := []interface{}{
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map[string]string{},
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int(5),
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"hello world",
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struct {
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A, B, C struct {
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D map[string]int
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}
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X []int
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Y []byte
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}{},
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}
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f := fuzz.New().RandSource(rand.NewSource(1)).NilChance(.5).NumElements(0, 100)
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for i := range table {
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out := table[i]
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obj := reflect.New(reflect.TypeOf(out)).Interface()
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f.Fuzz(obj)
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table[i] = obj
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}
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b.ResetTimer()
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var r interface{}
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for i := 0; i < b.N; i++ {
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for j := range table {
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r, _ = NewCloner().DeepCopy(table[j])
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}
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}
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result = r
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}
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