92fd887fd4
Make sure that chainparams and logging is properly initialized. Doing this for every test may be overkill, but this initialization is so simple that that does not matter. This should fix the travis issues.
104 lines
4.1 KiB
C++
104 lines
4.1 KiB
C++
// Copyright (c) 2014 The Bitcoin Core 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 "main.h"
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#include "random.h"
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#include "util.h"
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#include "test/test_bitcoin.h"
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#include <vector>
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#include <boost/test/unit_test.hpp>
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#define SKIPLIST_LENGTH 300000
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BOOST_FIXTURE_TEST_SUITE(skiplist_tests, BasicTestingSetup)
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BOOST_AUTO_TEST_CASE(skiplist_test)
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{
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std::vector<CBlockIndex> vIndex(SKIPLIST_LENGTH);
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for (int i=0; i<SKIPLIST_LENGTH; i++) {
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vIndex[i].nHeight = i;
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vIndex[i].pprev = (i == 0) ? NULL : &vIndex[i - 1];
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vIndex[i].BuildSkip();
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}
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for (int i=0; i<SKIPLIST_LENGTH; i++) {
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if (i > 0) {
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BOOST_CHECK(vIndex[i].pskip == &vIndex[vIndex[i].pskip->nHeight]);
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BOOST_CHECK(vIndex[i].pskip->nHeight < i);
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} else {
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BOOST_CHECK(vIndex[i].pskip == NULL);
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}
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}
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for (int i=0; i < 1000; i++) {
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int from = insecure_rand() % (SKIPLIST_LENGTH - 1);
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int to = insecure_rand() % (from + 1);
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BOOST_CHECK(vIndex[SKIPLIST_LENGTH - 1].GetAncestor(from) == &vIndex[from]);
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BOOST_CHECK(vIndex[from].GetAncestor(to) == &vIndex[to]);
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BOOST_CHECK(vIndex[from].GetAncestor(0) == &vIndex[0]);
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}
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}
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BOOST_AUTO_TEST_CASE(getlocator_test)
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{
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// Build a main chain 100000 blocks long.
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std::vector<uint256> vHashMain(100000);
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std::vector<CBlockIndex> vBlocksMain(100000);
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for (unsigned int i=0; i<vBlocksMain.size(); i++) {
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vHashMain[i] = ArithToUint256(i); // Set the hash equal to the height, so we can quickly check the distances.
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vBlocksMain[i].nHeight = i;
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vBlocksMain[i].pprev = i ? &vBlocksMain[i - 1] : NULL;
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vBlocksMain[i].phashBlock = &vHashMain[i];
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vBlocksMain[i].BuildSkip();
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BOOST_CHECK_EQUAL((int)UintToArith256(vBlocksMain[i].GetBlockHash()).GetLow64(), vBlocksMain[i].nHeight);
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BOOST_CHECK(vBlocksMain[i].pprev == NULL || vBlocksMain[i].nHeight == vBlocksMain[i].pprev->nHeight + 1);
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}
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// Build a branch that splits off at block 49999, 50000 blocks long.
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std::vector<uint256> vHashSide(50000);
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std::vector<CBlockIndex> vBlocksSide(50000);
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for (unsigned int i=0; i<vBlocksSide.size(); i++) {
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vHashSide[i] = ArithToUint256(i + 50000 + (arith_uint256(1) << 128)); // Add 1<<128 to the hashes, so GetLow64() still returns the height.
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vBlocksSide[i].nHeight = i + 50000;
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vBlocksSide[i].pprev = i ? &vBlocksSide[i - 1] : &vBlocksMain[49999];
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vBlocksSide[i].phashBlock = &vHashSide[i];
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vBlocksSide[i].BuildSkip();
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BOOST_CHECK_EQUAL((int)UintToArith256(vBlocksSide[i].GetBlockHash()).GetLow64(), vBlocksSide[i].nHeight);
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BOOST_CHECK(vBlocksSide[i].pprev == NULL || vBlocksSide[i].nHeight == vBlocksSide[i].pprev->nHeight + 1);
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}
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// Build a CChain for the main branch.
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CChain chain;
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chain.SetTip(&vBlocksMain.back());
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// Test 100 random starting points for locators.
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for (int n=0; n<100; n++) {
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int r = insecure_rand() % 150000;
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CBlockIndex* tip = (r < 100000) ? &vBlocksMain[r] : &vBlocksSide[r - 100000];
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CBlockLocator locator = chain.GetLocator(tip);
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// The first result must be the block itself, the last one must be genesis.
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BOOST_CHECK(locator.vHave.front() == tip->GetBlockHash());
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BOOST_CHECK(locator.vHave.back() == vBlocksMain[0].GetBlockHash());
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// Entries 1 through 11 (inclusive) go back one step each.
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for (unsigned int i = 1; i < 12 && i < locator.vHave.size() - 1; i++) {
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BOOST_CHECK_EQUAL(UintToArith256(locator.vHave[i]).GetLow64(), tip->nHeight - i);
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}
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// The further ones (excluding the last one) go back with exponential steps.
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unsigned int dist = 2;
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for (unsigned int i = 12; i < locator.vHave.size() - 1; i++) {
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BOOST_CHECK_EQUAL(UintToArith256(locator.vHave[i - 1]).GetLow64() - UintToArith256(locator.vHave[i]).GetLow64(), dist);
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dist *= 2;
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}
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}
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}
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BOOST_AUTO_TEST_SUITE_END()
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