59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
// Copyright (c) 2018 Shivaram Lingamneni
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// released under the MIT license
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package passwd
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import (
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"testing"
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)
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func TestBasic(t *testing.T) {
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hash, err := GenerateFromPassword([]byte("this is my passphrase"), DefaultCost)
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if err != nil || len(hash) != 60 {
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t.Errorf("bad password hash output: error %s, output %s, len %d", err, hash, len(hash))
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}
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if CompareHashAndPassword(hash, []byte("this is my passphrase")) != nil {
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t.Errorf("hash comparison failed unexpectedly")
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}
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if CompareHashAndPassword(hash, []byte("this is not my passphrase")) == nil {
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t.Errorf("hash comparison succeeded unexpectedly")
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}
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}
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func TestLongPassphrases(t *testing.T) {
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longPassphrase := make([]byte, 168)
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for i := range longPassphrase {
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longPassphrase[i] = 'a'
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}
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hash, err := GenerateFromPassword(longPassphrase, DefaultCost)
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if err != nil {
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t.Errorf("bad password hash output: error %s", err)
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}
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if CompareHashAndPassword(hash, longPassphrase) != nil {
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t.Errorf("hash comparison failed unexpectedly")
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}
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// change a byte of the passphrase beyond the normal 80-character
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// bcrypt truncation boundary:
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longPassphrase[150] = 'b'
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if CompareHashAndPassword(hash, longPassphrase) == nil {
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t.Errorf("hash comparison succeeded unexpectedly")
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}
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}
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// this could be useful for tuning the cost parameter on specific hardware
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func BenchmarkComparisons(b *testing.B) {
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pass := []byte("passphrase for benchmarking")
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hash, err := GenerateFromPassword(pass, DefaultCost)
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if err != nil {
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b.Errorf("bad output")
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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CompareHashAndPassword(hash, pass)
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}
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}
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