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88 lines
1.9 KiB
88 lines
1.9 KiB
// Copyright 2015 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package arena
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import (
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"testing"
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. "github.com/pingcap/check"
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)
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func TestT(t *testing.T) {
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TestingT(t)
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}
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func TestSimpleArenaAllocator(t *testing.T) {
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arena := NewAllocator(1000)
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slice := arena.Alloc(10)
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if arena.off != 10 {
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t.Error("off not match, expect 10 bug got", arena.off)
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}
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if len(slice) != 0 || cap(slice) != 10 {
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t.Error("slice length or cap not match")
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}
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slice = arena.Alloc(20)
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if arena.off != 30 {
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t.Error("off not match, expect 30 bug got", arena.off)
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}
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if len(slice) != 0 || cap(slice) != 20 {
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t.Error("slice length or cap not match")
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}
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slice = arena.Alloc(1024)
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if arena.off != 30 {
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t.Error("off not match, expect 30 bug got", arena.off)
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}
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if len(slice) != 0 || cap(slice) != 1024 {
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t.Error("slice length or cap not match")
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}
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slice = arena.AllocWithLen(2, 10)
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if arena.off != 40 {
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t.Error("off not match, expect 40 bug got", arena.off)
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}
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if len(slice) != 2 || cap(slice) != 10 {
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t.Error("slice length or cap not match")
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}
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arena.Reset()
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if arena.off != 0 || cap(arena.arena) != 1000 {
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t.Error("off or cap not match")
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}
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}
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func TestStdAllocator(t *testing.T) {
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slice := StdAllocator.Alloc(20)
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if len(slice) != 0 {
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t.Error("length not match")
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}
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if cap(slice) != 20 {
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t.Error("cap not match")
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}
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slice = StdAllocator.AllocWithLen(10, 20)
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if len(slice) != 10 {
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t.Error("length not match")
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}
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if cap(slice) != 20 {
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t.Error("cap not match")
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}
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}
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