M.V. Hutz
7cc1657403
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## Description Currently, the name of `bucket` is a bit confusing, because it is considered a 'table' in literature (as well as the whole hash table). A `bucket` is better described as a 'subtable', which is used by the total hash table to perform cuckoo hashing. In addition, the constructors `NewTable`, `NewTableBy`, and `NewCustomTable` were given shorter names, because the package name `cuckoo` already implies that `New*` would create a hash table with cuckoo hashing. This package has one use-case, and so it unambiguous what constructors produce. ## Changes - `NewTable` -> `New` - `NewTableBy` -> `NewBy` - `NewCustomTable` -> `NewCustom` - `bucket` -> `subtable` ### Design Decisions - I would have renamed `Table` and `subtable` to map equivalents, but 'submap' implies that a certain subsection of the map is contained within it, which isn't quite right. - I chose not to go with `Map` and `table`, because of the split naming convention. ## Checklist - [x] Tests pass - [x] Docs updated Reviewed-on: #22 Co-authored-by: M.V. Hutz <git@maximhutz.me> Co-committed-by: M.V. Hutz <git@maximhutz.me>
31 lines
604 B
Go
31 lines
604 B
Go
package cuckoo
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import (
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"math"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestMaxEvictions(t *testing.T) {
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assert := assert.New(t)
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for i := 16; i < 116; i++ {
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table := New[int, bool](Capacity(i / 2))
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expectedEvictions := 3 * math.Floor(math.Log2(float64(i)))
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assert.Equal(table.maxEvictions(), int(expectedEvictions))
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}
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}
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func TestLoad(t *testing.T) {
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assert := assert.New(t)
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table := New[int, bool](Capacity(8))
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for i := range 16 {
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err := table.Put(i, true)
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assert.NoError(err)
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assert.Equal(float64(table.Size())/float64(table.TotalCapacity()), table.load())
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}
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}
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