36 lines
1 KiB
Go
36 lines
1 KiB
Go
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package cipher_test
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import (
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"crypto/aes"
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"crypto/cipher"
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"testing"
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)
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func TestCryptBlocks(t *testing.T) {
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buf := make([]byte, 16)
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block, _ := aes.NewCipher(buf)
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mode := cipher.NewCBCDecrypter(block, buf)
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mustPanic(t, "crypto/cipher: input not full blocks", func() { mode.CryptBlocks(buf, buf[:3]) })
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mustPanic(t, "crypto/cipher: output smaller than input", func() { mode.CryptBlocks(buf[:3], buf) })
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mode = cipher.NewCBCEncrypter(block, buf)
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mustPanic(t, "crypto/cipher: input not full blocks", func() { mode.CryptBlocks(buf, buf[:3]) })
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mustPanic(t, "crypto/cipher: output smaller than input", func() { mode.CryptBlocks(buf[:3], buf) })
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}
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func mustPanic(t *testing.T, msg string, f func()) {
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defer func() {
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err := recover()
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if err == nil {
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t.Errorf("function did not panic, wanted %q", msg)
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} else if err != msg {
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t.Errorf("got panic %v, wanted %q", err, msg)
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}
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}()
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f()
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}
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