mirror of https://github.com/tikv/client-go.git
74 lines
1.7 KiB
Go
74 lines
1.7 KiB
Go
// Copyright 2023 TiKV Authors
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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 client
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import (
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"testing"
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"github.com/stretchr/testify/require"
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)
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type FakeItem struct {
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pri uint64
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value int
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canceled bool
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}
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func (f *FakeItem) priority() uint64 {
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return f.pri
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}
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func (f *FakeItem) isCanceled() bool {
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return f.canceled
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}
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func TestPriority(t *testing.T) {
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re := require.New(t)
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testFunc := func(aq *PriorityQueue) {
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for i := 1; i <= 5; i++ {
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aq.Push(&FakeItem{value: i, pri: uint64(i)})
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}
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re.Equal(5, aq.Len())
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re.Equal(uint64(5), aq.highestPriority())
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aq.clean()
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re.Equal(5, aq.Len())
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arr := aq.Take(1)
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re.Len(arr, 1)
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re.Equal(uint64(5), arr[0].priority())
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re.Equal(uint64(4), aq.highestPriority())
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arr = aq.Take(2)
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re.Len(arr, 2)
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re.Equal(uint64(4), arr[0].priority())
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re.Equal(uint64(3), arr[1].priority())
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re.Equal(uint64(2), aq.highestPriority())
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arr = aq.Take(5)
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re.Len(arr, 2)
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re.Equal(uint64(2), arr[0].priority())
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re.Equal(uint64(1), arr[1].priority())
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re.Equal(uint64(0), aq.highestPriority())
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re.Equal(0, aq.Len())
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aq.Push(&FakeItem{value: 1, pri: 1, canceled: true})
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re.Equal(1, aq.Len())
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aq.clean()
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re.Equal(0, aq.Len())
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}
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hq := NewPriorityQueue()
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testFunc(hq)
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}
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