kit/byteslicepool/byteslicepool_test.go

60 lines
1.6 KiB
Go

/*
Copyright 2023 The Dapr Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package byteslicepool
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestByteSlicePool(t *testing.T) {
minCap := 32
pool := NewByteSlicePool(minCap)
bs := pool.Get(minCap)
assert.Empty(t, bs)
assert.Equal(t, minCap, cap(bs))
pool.Put(bs)
bs2 := pool.Get(minCap)
assert.Equal(t, &bs, &bs2)
assert.Equal(t, minCap, cap(bs2))
for range minCap {
bs2 = append(bs2, 0)
}
// Less than minCap
// Capacity will not change after resize
size2 := 16
bs2 = pool.Resize(bs2, size2)
assert.Equal(t, size2, len(bs2)) //nolint:testifylint
assert.Equal(t, minCap, cap(bs2))
// Less than twice the minCap
// Will automatically expand to twice the original capacity
size3 := 48
bs2 = pool.Resize(bs2, size3)
assert.Equal(t, size3, len(bs2)) //nolint:testifylint
assert.Equal(t, minCap*2, cap(bs2))
// More than twice the minCap
// Will automatically expand to the specified size
size4 := 128
bs2 = pool.Resize(bs2, size4)
assert.Equal(t, size4, len(bs2)) //nolint:testifylint
assert.Equal(t, size4, cap(bs2))
}