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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package buffer

import (
	"sync"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestBuffers(t *testing.T) {
	const dummyData = "dummy data"
	p := NewPool()

	var wg sync.WaitGroup
	for g := 0; g < 10; g++ {
		wg.Add(1)
		go func() {
			for i := 0; i < 100; i++ {
				buf := p.Get()
				assert.Zero(t, buf.Len(), "Expected truncated buffer")
				assert.NotZero(t, buf.Cap(), "Expected non-zero capacity")

				buf.AppendString(dummyData)
				assert.Equal(t, buf.Len(), len(dummyData), "Expected buffer to contain dummy data")

				buf.Free()
			}
			wg.Done()
		}()
	}
	wg.Wait()
}