int64_test.go

Documentation: go.mongodb.org/mongo-driver/internal/ptrutil

     1  // Copyright (C) MongoDB, Inc. 2023-present.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License"); you may
     4  // not use this file except in compliance with the License. You may obtain
     5  // a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
     6  
     7  package ptrutil
     8  
     9  import (
    10  	"testing"
    11  
    12  	"go.mongodb.org/mongo-driver/internal/assert"
    13  )
    14  
    15  func TestCompareInt64(t *testing.T) {
    16  	t.Parallel()
    17  
    18  	int64ToPtr := func(i64 int64) *int64 { return &i64 }
    19  	int64Ptr := int64ToPtr(1)
    20  
    21  	tests := []struct {
    22  		name       string
    23  		ptr1, ptr2 *int64
    24  		want       int
    25  	}{
    26  		{
    27  			name: "empty",
    28  			want: 0,
    29  		},
    30  		{
    31  			name: "ptr1 nil",
    32  			ptr2: int64ToPtr(1),
    33  			want: -2,
    34  		},
    35  		{
    36  			name: "ptr2 nil",
    37  			ptr1: int64ToPtr(1),
    38  			want: 2,
    39  		},
    40  		{
    41  			name: "ptr1 and ptr2 have same value, different address",
    42  			ptr1: int64ToPtr(1),
    43  			ptr2: int64ToPtr(1),
    44  			want: 0,
    45  		},
    46  		{
    47  			name: "ptr1 and ptr2 have the same address",
    48  			ptr1: int64Ptr,
    49  			ptr2: int64Ptr,
    50  			want: 0,
    51  		},
    52  		{
    53  			name: "ptr1 GT ptr2",
    54  			ptr1: int64ToPtr(1),
    55  			ptr2: int64ToPtr(0),
    56  			want: 1,
    57  		},
    58  		{
    59  			name: "ptr1 LT ptr2",
    60  			ptr1: int64ToPtr(0),
    61  			ptr2: int64ToPtr(1),
    62  			want: -1,
    63  		},
    64  	}
    65  
    66  	for _, test := range tests {
    67  		test := test // capture the range variable
    68  
    69  		t.Run(test.name, func(t *testing.T) {
    70  			t.Parallel()
    71  
    72  			got := CompareInt64(test.ptr1, test.ptr2)
    73  			assert.Equal(t, test.want, got, "compareInt64() = %v, wanted %v", got, test.want)
    74  		})
    75  	}
    76  }
    77
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