30 lines
637 B
Go
30 lines
637 B
Go
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// Package mtest contains types and functions which are useful when writing
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// tests
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package mtest
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import (
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crand "crypto/rand"
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"encoding/hex"
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"math/rand"
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"time"
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)
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// Rand is a public instance of rand.Rand, seeded with the current
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// nano-timestamp
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var Rand = rand.New(rand.NewSource(time.Now().UnixNano()))
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// RandBytes returns n random bytes
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func RandBytes(n int) []byte {
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b := make([]byte, n)
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if _, err := crand.Read(b); err != nil {
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panic(err)
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}
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return b
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}
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// RandHex returns a random hex string which is n characters long
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func RandHex(n int) string {
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b := RandBytes(hex.DecodedLen(n))
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return hex.EncodeToString(b)
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}
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