github.com/m3db/m3@v1.5.0/src/aggregator/aggregation/quantile/cm/heap_pool_test.go (about)

     1  // Copyright (c) 2021 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 cm
    22  
    23  import (
    24  	"testing"
    25  
    26  	"github.com/stretchr/testify/assert"
    27  	"github.com/stretchr/testify/require"
    28  )
    29  
    30  func TestHeapPool(t *testing.T) {
    31  	h := sharedHeapPool.Get(_initialHeapBucketSize)
    32  	require.NotNil(t, h)
    33  	assert.Equal(t, _initialHeapBucketSize, cap(*h))
    34  	assert.Equal(t, 0, len(*h))
    35  	h.Reset()
    36  
    37  	h2 := sharedHeapPool.Get(_initialHeapBucketSize + 1) // should fall into different bucket
    38  	require.NotNil(t, h2)
    39  	require.True(t, h != h2)
    40  	assert.Equal(t, _initialHeapBucketSize*_heapSizeBucketGrowthFactor, cap(*h2))
    41  	assert.Equal(t, 0, len(*h2))
    42  	h2.Reset()
    43  
    44  	h3 := sharedHeapPool.Get(65) // should get the next largest one
    45  	require.NotNil(t, h3)
    46  	require.True(t, h3 != h)
    47  	require.True(t, h3 != h2)
    48  	assert.Equal(t, 256, cap(*h3))
    49  	assert.Equal(t, 0, len(*h3))
    50  }