github.com/galaxyobe/gen@v0.0.0-20220910125335-392fa8f0990f/cmd/deepcopy-gen/output_tests/wholepkg/deepcopy_test.go (about)

     1  /*
     2  Copyright 2016 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package wholepkg
    18  
    19  import (
    20  	"reflect"
    21  	"testing"
    22  
    23  	fuzz "github.com/google/gofuzz"
    24  )
    25  
    26  func TestDeepCopyPrimitives(t *testing.T) {
    27  	x := Struct_Primitives{}
    28  	y := Struct_Primitives{}
    29  
    30  	if !reflect.DeepEqual(&x, &y) {
    31  		t.Errorf("objects should be equal to start, but are not")
    32  	}
    33  
    34  	fuzzer := fuzz.New()
    35  	fuzzer.Fuzz(&x)
    36  	fuzzer.Fuzz(&y)
    37  
    38  	if reflect.DeepEqual(&x, &y) {
    39  		t.Errorf("objects should not be equal, but are")
    40  	}
    41  
    42  	x.DeepCopyInto(&y)
    43  	if !reflect.DeepEqual(&x, &y) {
    44  		t.Errorf("objects should be equal, but are not")
    45  	}
    46  }
    47  
    48  func TestDeepCopyInterfaceFields(t *testing.T) {
    49  	x := Struct_Interfaces{}
    50  	y := Struct_Interfaces{}
    51  
    52  	if !reflect.DeepEqual(&x, &y) {
    53  		t.Errorf("objects should be equal to start, but are not")
    54  	}
    55  
    56  	fuzzer := fuzz.New()
    57  
    58  	obj := Struct_ExplicitObject{}
    59  	fuzzer.Fuzz(&obj)
    60  	x.ObjectField = &obj
    61  
    62  	sel := Struct_ExplicitSelectorExplicitObject{}
    63  	fuzzer.Fuzz(&sel)
    64  	x.SelectorField = &sel
    65  
    66  	if reflect.DeepEqual(&x, &y) {
    67  		t.Errorf("objects should not be equal, but are")
    68  	}
    69  
    70  	x.DeepCopyInto(&y)
    71  	if !reflect.DeepEqual(&x, &y) {
    72  		t.Errorf("objects should be equal, but are not")
    73  	}
    74  }
    75  
    76  func TestNilCopy(t *testing.T) {
    77  	var x *Struct_B
    78  	y := x.DeepCopy()
    79  	if y != nil {
    80  		t.Errorf("Expected nil as deepcopy of nil, got %+v", y)
    81  	}
    82  }
    83  
    84  func assertMethod(t *testing.T, typ reflect.Type, name string) {
    85  	if _, found := typ.MethodByName(name); !found {
    86  		t.Errorf("Struct_ExplicitObject must have %v method", name)
    87  	}
    88  }
    89  
    90  func assertNotMethod(t *testing.T, typ reflect.Type, name string) {
    91  	if _, found := typ.MethodByName(name); found {
    92  		t.Errorf("%v must not have %v method", typ, name)
    93  	}
    94  }
    95  
    96  func TestInterfaceTypes(t *testing.T) {
    97  	explicitObject := reflect.TypeOf(&Struct_ExplicitObject{})
    98  	assertMethod(t, explicitObject, "DeepCopyObject")
    99  
   100  	typeMeta := reflect.TypeOf(&Struct_TypeMeta{})
   101  	assertNotMethod(t, typeMeta, "DeepCopy")
   102  
   103  	objectAndList := reflect.TypeOf(&Struct_ObjectAndList{})
   104  	assertMethod(t, objectAndList, "DeepCopyObject")
   105  	assertMethod(t, objectAndList, "DeepCopyList")
   106  
   107  	objectAndObject := reflect.TypeOf(&Struct_ObjectAndObject{})
   108  	assertMethod(t, objectAndObject, "DeepCopyObject")
   109  
   110  	explicitSelectorExplicitObject := reflect.TypeOf(&Struct_ExplicitSelectorExplicitObject{})
   111  	assertMethod(t, explicitSelectorExplicitObject, "DeepCopySelector")
   112  	assertMethod(t, explicitSelectorExplicitObject, "DeepCopyObject")
   113  }
   114  
   115  func TestInterfaceDeepCopy(t *testing.T) {
   116  	x := Struct_ExplicitObject{}
   117  
   118  	fuzzer := fuzz.New()
   119  	fuzzer.Fuzz(&x)
   120  
   121  	y_obj := x.DeepCopyObject()
   122  	y, ok := y_obj.(*Struct_ExplicitObject)
   123  	if !ok {
   124  		t.Fatalf("epxected Struct_ExplicitObject from Struct_ExplicitObject.DeepCopyObject, got: %t", y_obj)
   125  	}
   126  	if !reflect.DeepEqual(y, &x) {
   127  		t.Error("objects should be equal, but are not")
   128  	}
   129  }
   130  
   131  func TestInterfaceNonPointerDeepCopy(t *testing.T) {
   132  	x := Struct_NonPointerExplicitObject{}
   133  
   134  	fuzzer := fuzz.New()
   135  	fuzzer.Fuzz(&x)
   136  
   137  	y_obj := x.DeepCopyObject()
   138  	y, ok := y_obj.(Struct_NonPointerExplicitObject)
   139  	if !ok {
   140  		t.Fatalf("epxected Struct_NonPointerExplicitObject from Struct_NonPointerExplicitObject.DeepCopyObject, got: %t", y_obj)
   141  	}
   142  	if !reflect.DeepEqual(y, x) {
   143  		t.Error("objects should be equal, but are not")
   144  	}
   145  }