86 lines
1.5 KiB
Go
86 lines
1.5 KiB
Go
package lrucache
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import (
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"sync"
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"testing"
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"time"
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)
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func Test_hashCode(t *testing.T) {
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/*if hashCode(-1) != 1 {
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t.Error("case 1 failed")
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}
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if hashCode(0) != 0 {
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t.Error("case 2 failed")
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}
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if hashCode(0x7FFFFFFF) != 0x7FFFFFFF {
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t.Error("case 3 failed")
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}*/
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if hashCode("12345") != 3421846044 {
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t.Error("case 4 failed")
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}
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if hashCode("abcdefghijklmnopqrstuvwxyz") != 1277644989 {
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t.Error("case 5 failed")
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}
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/*if hashCode(123.45) != 123 {
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t.Error("case 6 failed")
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}
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if hashCode(-15268.45) != 15268 {
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t.Error("case 7 failed")
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}*/
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}
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func Test_nextPowOf2(t *testing.T) {
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if nextPowOf2(0) != 2 {
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t.Error("case 1 failed")
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}
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if nextPowOf2(1) != 2 {
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t.Error("case 2 failed")
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}
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if nextPowOf2(2) != 2 {
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t.Error("case 3 failed")
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}
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if nextPowOf2(3) != 4 {
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t.Error("case 4 failed")
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}
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if nextPowOf2(123) != 128 {
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t.Error("case 5 failed")
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}
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if nextPowOf2(0x7FFFFFFF) != 0x80000000 {
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t.Error("case 6 failed")
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}
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}
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func Test_timeout(t *testing.T) {
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sc := NewSyncCache(1, 2, 2)
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sc.Put("1", "2")
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if v, ok := sc.Get("1"); !ok || v != "2" {
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t.Error("case 1 failed")
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}
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time.Sleep(2 * time.Second)
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if _, ok := sc.Get("1"); ok {
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t.Error("case 2 failed")
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}
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}
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func Test_concurrent(t *testing.T) {
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sc := NewSyncCache(1, 4, 2)
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var wg sync.WaitGroup
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for index := 0; index < 100000; index++ {
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wg.Add(3)
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go func() {
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sc.Put("1", "2")
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wg.Done()
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}()
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go func() {
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sc.Get("1")
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wg.Done()
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}()
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go func() {
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sc.Delete("1")
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wg.Done()
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}()
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}
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wg.Wait()
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}
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