// Copyright (c) 2015-2021 MinIO, Inc.//// This file is part of MinIO Object Storage stack//// This program is free software: you can redistribute it and/or modify// it under the terms of the GNU Affero General Public License as published by// the Free Software Foundation, either version 3 of the License, or// (at your option) any later version.//// This program is distributed in the hope that it will be useful// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the// GNU Affero General Public License for more details.//// You should have received a copy of the GNU Affero General Public License// along with this program.  If not, see <http://www.gnu.org/licenses/>. package bpool import "testing" // Tests - bytePool functionality.func TestBytePool(t *testing.T) {	size := 4	width := 10	capWidth := 16 	bufPool := NewBytePoolCap(size, width, capWidth) 	// Check the width	if bufPool.Width() != width {		t.Fatalf("bytepool width invalid: got %v want %v", bufPool.Width(), width)	} 	// Check with width cap	if bufPool.WidthCap() != capWidth {		t.Fatalf("bytepool capWidth invalid: got %v want %v", bufPool.WidthCap(), capWidth)	} 	// Check that retrieved buffer are of the expected width	b := bufPool.Get()	if len(b) != width {		t.Fatalf("bytepool length invalid: got %v want %v", len(b), width)	}	if cap(b) != capWidth {		t.Fatalf("bytepool length invalid: got %v want %v", cap(b), capWidth)	} 	bufPool.Put(b) 	// Fill the pool beyond the capped pool size.	for i := 0; i < size*2; i++ {		bufPool.Put(make([]byte, bufPool.w))	} 	b = bufPool.Get()	if len(b) != width {		t.Fatalf("bytepool length invalid: got %v want %v", len(b), width)	}	if cap(b) != capWidth {		t.Fatalf("bytepool length invalid: got %v want %v", cap(b), capWidth)	} 	bufPool.Put(b) 	// Close the channel so we can iterate over it.	close(bufPool.c) 	// Check the size of the pool.	if len(bufPool.c) != size {		t.Fatalf("bytepool size invalid: got %v want %v", len(bufPool.c), size)	} 	bufPoolNoCap := NewBytePoolCap(size, width, 0)	// Check the width	if bufPoolNoCap.Width() != width {		t.Fatalf("bytepool width invalid: got %v want %v", bufPool.Width(), width)	} 	// Check with width cap	if bufPoolNoCap.WidthCap() != 0 {		t.Fatalf("bytepool capWidth invalid: got %v want %v", bufPool.WidthCap(), 0)	}	b = bufPoolNoCap.Get()	if len(b) != width {		t.Fatalf("bytepool length invalid: got %v want %v", len(b), width)	}	if cap(b) != width {		t.Fatalf("bytepool length invalid: got %v want %v", cap(b), width)	}}