37 lines
1.4 KiB
Go
37 lines
1.4 KiB
Go
// Copyright 2021 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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// 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 paging
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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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func TestGrowPagingSize(t *testing.T) {
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require.Equal(t, GrowPagingSize(MinPagingSize), MinPagingSize*pagingSizeGrow)
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require.Equal(t, GrowPagingSize(MaxPagingSize), MaxPagingSize)
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require.Equal(t, GrowPagingSize(MaxPagingSize/pagingSizeGrow+1), MaxPagingSize)
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}
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func TestCalculateSeekCnt(t *testing.T) {
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require.InDelta(t, CalculateSeekCnt(0), 0, 0.1)
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require.InDelta(t, CalculateSeekCnt(1), 1, 0.1)
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require.InDelta(t, CalculateSeekCnt(MinPagingSize), 1, 0.1)
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require.InDelta(t, CalculateSeekCnt(pagingGrowingSum), maxPagingSizeShift+1, 0.1)
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require.InDelta(t, CalculateSeekCnt(pagingGrowingSum+1), maxPagingSizeShift+2, 0.1)
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require.InDelta(t, CalculateSeekCnt(pagingGrowingSum+MaxPagingSize), maxPagingSizeShift+2, 0.1)
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}
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