go/uuid
go/uuid
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Code Issues Releases Activity

use strings.NewReader() instead of math/rand.Rand

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This commit is contained in:
talis 2019-02-28 16:21:34 +02:00
parent dc0f88720f
commit e23e7efa9b
2 changed files with 15 additions and 13 deletions
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20
uuid_source_test.go
View File

@ -1,17 +1,19 @@
package uuid
import (
"math/rand"
"testing"
"time"
"strings"
regen "github.com/zach-klippenstein/goregen"
)
func TestUuidSources(t *testing.T) {
myString, _ := regen.Generate("[a-zA-Z]{1000}")
// Two identical sources, should give same sequence
currentTime := time.Now().UnixNano()
uuidSourceA := NewSource(rand.New(rand.NewSource(currentTime)))
uuidSourceB := NewSource(rand.New(rand.NewSource(currentTime)))
uuidSourceA := NewSource(strings.NewReader(myString))
uuidSourceB := NewSource(strings.NewReader(myString))
for i := 0; i < 10; i++ {
uuid1 := uuidSourceA.New()
@ -34,8 +36,8 @@ func TestUuidSources(t *testing.T) {
}
// Set rander to rand source with same seed, should give same sequence
uuidSourceA.SetRand(rand.New(rand.NewSource(123)))
uuidSourceB.SetRand(rand.New(rand.NewSource(123)))
uuidSourceA.SetRand(strings.NewReader(myString))
uuidSourceB.SetRand(strings.NewReader(myString))
for i := 0; i < 10; i++ {
uuid1 := uuidSourceA.New()
@ -46,8 +48,8 @@ func TestUuidSources(t *testing.T) {
}
// Set rander to rand source with different seeds, should not give same sequence
uuidSourceA.SetRand(rand.New(rand.NewSource(456)))
uuidSourceB.SetRand(rand.New(rand.NewSource(789)))
uuidSourceA.SetRand(strings.NewReader("456" + myString))
uuidSourceB.SetRand(strings.NewReader("myString" + myString))
for i := 0; i < 10; i++ {
uuid1 := uuidSourceA.New()

8
uuid_test.go
View File

@ -13,8 +13,6 @@ import (
"testing"
"time"
"unsafe"
"math/rand"
)
type test struct {
@ -482,11 +480,13 @@ func TestBadRand(t *testing.T) {
}
func TestSetRand(t *testing.T) {
SetRand(rand.New(rand.NewSource(456)))
myString := "805-9dd6-1a877cb526c678e71d38-7122-44c0-9b7c-04e7001cc78783ac3e82-47a3-4cc3-9951-13f3339d88088f5d685a-11f7-4078-ada9-de44ad2daeb7"
SetRand(strings.NewReader(myString))
uuid1 := New()
uuid2 := New()
SetRand(rand.New(rand.NewSource(456)))
SetRand(strings.NewReader(myString))
uuid3 := New()
uuid4 := New()