func_test.go

Documentation: github.com/google/go-cmp/cmp/internal/function

     1  // Copyright 2019, The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package function
     6  
     7  import (
     8  	"bytes"
     9  	"reflect"
    10  	"testing"
    11  )
    12  
    13  type myType struct{ bytes.Buffer }
    14  
    15  func (myType) valueMethod() {}
    16  func (myType) ValueMethod() {}
    17  
    18  func (*myType) pointerMethod() {}
    19  func (*myType) PointerMethod() {}
    20  
    21  func TestNameOf(t *testing.T) {
    22  	tests := []struct {
    23  		fnc  interface{}
    24  		want string
    25  	}{
    26  		{TestNameOf, "function.TestNameOf"},
    27  		{func() {}, "function.TestNameOf.func1"},
    28  		{(myType).valueMethod, "function.myType.valueMethod"},
    29  		{(myType).ValueMethod, "function.myType.ValueMethod"},
    30  		{(myType{}).valueMethod, "function.myType.valueMethod"},
    31  		{(myType{}).ValueMethod, "function.myType.ValueMethod"},
    32  		{(*myType).valueMethod, "function.myType.valueMethod"},
    33  		{(*myType).ValueMethod, "function.myType.ValueMethod"},
    34  		{(&myType{}).valueMethod, "function.myType.valueMethod"},
    35  		{(&myType{}).ValueMethod, "function.myType.ValueMethod"},
    36  		{(*myType).pointerMethod, "function.myType.pointerMethod"},
    37  		{(*myType).PointerMethod, "function.myType.PointerMethod"},
    38  		{(&myType{}).pointerMethod, "function.myType.pointerMethod"},
    39  		{(&myType{}).PointerMethod, "function.myType.PointerMethod"},
    40  		{(*myType).Write, "function.myType.Write"},
    41  		{(&myType{}).Write, "bytes.Buffer.Write"},
    42  	}
    43  	for _, tt := range tests {
    44  		t.Run("", func(t *testing.T) {
    45  			got := NameOf(reflect.ValueOf(tt.fnc))
    46  			if got != tt.want {
    47  				t.Errorf("NameOf() = %v, want %v", got, tt.want)
    48  			}
    49  		})
    50  	}
    51  }
    52
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