github.com/m3db/m3@v1.5.1-0.20231129193456-75a402aa583b/src/aggregator/client/ref_count_test.go (about)

     1  // Copyright (c) 2018 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package client
    22  
    23  import (
    24  	"testing"
    25  
    26  	"github.com/stretchr/testify/require"
    27  )
    28  
    29  func TestRefCountIncRefInvalidRefCount(t *testing.T) {
    30  	rc := refCount{}
    31  	rc.SetRefCount(-1)
    32  	require.Panics(t, func() { rc.IncRef() })
    33  }
    34  
    35  func TestRefCountIncRefSuccess(t *testing.T) {
    36  	rc := refCount{}
    37  	require.Equal(t, 1, rc.IncRef())
    38  }
    39  
    40  func TestRefCountDecRefInvalidRefCount(t *testing.T) {
    41  	rc := refCount{}
    42  	require.Panics(t, func() { rc.DecRef() })
    43  }
    44  
    45  func TestRefCountDecRefSuccessDestructorNotCalled(t *testing.T) {
    46  	rc := refCount{}
    47  	rc.SetRefCount(2)
    48  	var called bool
    49  	rc.SetDestructor(func() { called = true })
    50  	require.Equal(t, 1, rc.DecRef())
    51  	require.False(t, called)
    52  }
    53  
    54  func TestRefCountDecRefSuccessDestructorCalled(t *testing.T) {
    55  	rc := refCount{}
    56  	rc.SetRefCount(1)
    57  	var called bool
    58  	rc.SetDestructor(func() { called = true })
    59  	require.Equal(t, 0, rc.DecRef())
    60  	require.True(t, called)
    61  }
    62  
    63  func TestRefCountDecRefSuccessDestructorIsNil(t *testing.T) {
    64  	rc := refCount{}
    65  	rc.SetRefCount(1)
    66  	require.Equal(t, 0, rc.DecRef())
    67  }