6b759fb092
Function extracted from upstream: PR bitcoin/bitcoin#11167 Commit c091b99379b97cb314c9fa123beabdbc324cf7a4
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
// Copyright (c) 2018 The Zcash developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <utilstrencodings.h>
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#include <test/test_bitcoin.h>
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#include <zcash/NoteEncryption.hpp>
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#include <boost/test/unit_test.hpp>
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BOOST_FIXTURE_TEST_SUITE(convertbits_tests, BasicTestingSetup)
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BOOST_AUTO_TEST_CASE(convertbits_deterministic)
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{
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for (size_t i = 0; i < 256; i++) {
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std::vector<unsigned char> input(32, i);
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std::vector<unsigned char> data;
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std::vector<unsigned char> output;
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ConvertBits<8, 5, true>(data, input.begin(), input.end());
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ConvertBits<5, 8, false>(output, data.begin(), data.end());
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BOOST_CHECK_EQUAL(data.size(), 52);
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BOOST_CHECK_EQUAL(output.size(), 32);
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BOOST_CHECK(input == output);
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}
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for (size_t i = 0; i < 256; i++) {
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std::vector<unsigned char> input(43, i);
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std::vector<unsigned char> data;
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std::vector<unsigned char> output;
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ConvertBits<8, 5, true>(data, input.begin(), input.end());
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ConvertBits<5, 8, false>(output, data.begin(), data.end());
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BOOST_CHECK_EQUAL(data.size(), 69);
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BOOST_CHECK_EQUAL(output.size(), 43);
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BOOST_CHECK(input == output);
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}
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}
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BOOST_AUTO_TEST_CASE(convertbits_random)
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{
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for (size_t i = 0; i < 1000; i++) {
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auto input = libzcash::random_uint256();
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std::vector<unsigned char> data;
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std::vector<unsigned char> output;
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ConvertBits<8, 5, true>(data, input.begin(), input.end());
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ConvertBits<5, 8, false>(output, data.begin(), data.end());
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BOOST_CHECK_EQUAL(data.size(), 52);
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BOOST_CHECK_EQUAL(output.size(), 32);
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BOOST_CHECK(input == uint256(output));
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}
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}
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BOOST_AUTO_TEST_SUITE_END()
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