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random.go
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random.go
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// Copyright (C) 2023 Gobalsky Labs Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package test
import (
crand "crypto/rand"
"encoding/hex"
"fmt"
"math/rand"
"strconv"
"golang.org/x/crypto/sha3"
)
func RandomVegaID() string {
data := make([]byte, 10)
if _, err := crand.Read(data); err != nil {
panic(fmt.Errorf("couldn't generate random string: %w", err))
}
hashFunc := sha3.New256()
hashFunc.Write(data)
hashedData := hashFunc.Sum(nil)
return hex.EncodeToString(hashedData)
}
func RandomNegativeI64() int64 {
return (rand.Int63n(1000) + 1) * -1
}
func RandomNegativeI64AsString() string {
return strconv.FormatInt(RandomNegativeI64(), 10)
}
func RandomI64() int64 {
return rand.Int63()
}
func RandomPositiveI64() int64 {
return rand.Int63()
}
func RandomPositiveI64Before(n int64) int64 {
return rand.Int63n(n)
}
func RandomPositiveU32() uint32 {
return rand.Uint32() + 1
}
func RandomPositiveU64() uint64 {
return rand.Uint64() + 1
}
func RandomPositiveU64AsString() string {
return strconv.FormatUint(RandomPositiveU64(), 10)
}
func RandomPositiveU64Before(n int64) uint64 {
return uint64(rand.Int63n(n))
}