tile38/internal/sstring/sstring_test.go

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2022-09-20 03:47:38 +03:00
package sstring
import (
"math/rand"
"testing"
"time"
"github.com/tidwall/assert"
)
func TestShared(t *testing.T) {
for i := -1; i < 10; i++ {
var str string
func() {
defer func() {
assert.Assert(recover().(string) == "string not found")
}()
str = Load(i)
}()
assert.Assert(str == "")
}
assert.Assert(Store("hello") == 0)
assert.Assert(Store("") == 1)
assert.Assert(Store("jello") == 2)
assert.Assert(Store("hello") == 0)
assert.Assert(Store("") == 1)
assert.Assert(Store("jello") == 2)
str := Load(0)
assert.Assert(str == "hello")
str = Load(1)
assert.Assert(str == "")
str = Load(2)
assert.Assert(str == "jello")
assert.Assert(Len() == 3)
}
func randStr(n int) string {
b := make([]byte, n)
rand.Read(b)
for i := 0; i < n; i++ {
b[i] = 'a' + b[i]%26
}
return string(b)
}
func BenchmarkStore(b *testing.B) {
rand.Seed(time.Now().UnixNano())
wmap := make(map[string]bool, b.N)
for len(wmap) < b.N {
wmap[randStr(10)] = true
}
words := make([]string, 0, b.N)
for word := range wmap {
words = append(words, word)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
Store(words[i])
}
}
func BenchmarkLoad(b *testing.B) {
rand.Seed(time.Now().UnixNano())
wmap := make(map[string]bool, b.N)
for len(wmap) < b.N {
wmap[randStr(10)] = true
}
words := make([]string, 0, b.N)
for word := range wmap {
words = append(words, word)
}
var nums []int
for i := 0; i < b.N; i++ {
nums = append(nums, Store(words[i]))
}
rand.Shuffle(len(nums), func(i, j int) {
nums[i], nums[j] = nums[j], nums[i]
})
b.ResetTimer()
for i := 0; i < b.N; i++ {
Load(nums[i])
}
}