mirror of
https://github.com/yunionio/cloudpods.git
synced 2026-05-07 14:11:05 +08:00
80 lines
1.6 KiB
Go
80 lines
1.6 KiB
Go
// Copyright 2019 Yunion
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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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 appsrv
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import (
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"testing"
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)
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func TestRing(t *testing.T) {
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var (
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r = NewRing(10)
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push = func(v int32) {
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r.Push(v)
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}
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pop = func(want int32) {
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got := r.Pop().(int32)
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if got != want {
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t.Fatalf("got %d, want %d", got, want)
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}
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for i := r.header; i != r.tail; i = nextPointer(i, len(r.buffer)) {
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if r.buffer[i] != nil {
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t.Fatalf("head %d, tail %d, index %d not nil",
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r.header, r.tail, i)
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}
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}
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}
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)
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push(10)
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push(20)
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push(30)
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pop(10)
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pop(20)
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pop(30)
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if v := r.Pop(); v != nil {
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t.Fatalf("want nil, got %#v", v)
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}
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}
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func TestOverflow(t *testing.T) {
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r := NewRing(1)
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if r.Capacity() != 1 {
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t.Error("Wrong capacity")
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}
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if r.Size() != 0 {
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t.Error("Wrong size")
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}
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if r.Push(1) != true {
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t.Error("Push should success")
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}
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if r.Push(2) != false {
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t.Error("Push should fail")
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}
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r.Pop()
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r.Push(2)
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if r.Size() != 1 {
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t.Error("Wrong size")
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}
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r.Pop()
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if r.Size() != 0 {
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t.Error("Wrong size")
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}
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r.Push(3)
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if r.Size() != 1 {
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t.Error("Wrong size")
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}
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}
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