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// Copyright (c) 2015 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <vector>
#include "prevector.h"
#include "random.h"
#include "serialize.h"
#include "streams.h"
#include "test/test_bitcoin.h"
#include <boost/test/unit_test.hpp>
BOOST_FIXTURE_TEST_SUITE(PrevectorTests, TestingSetup)
template<unsigned int N, typename T>
class prevector_tester {
typedef std::vector<T> realtype;
realtype real_vector;
typedef prevector<N, T> pretype;
pretype pre_vector;
typedef typename pretype::size_type Size;
void test() {
const pretype& const_pre_vector = pre_vector;
BOOST_CHECK_EQUAL(real_vector.size(), pre_vector.size());
BOOST_CHECK_EQUAL(real_vector.empty(), pre_vector.empty());
for (Size s = 0; s < real_vector.size(); s++) {
BOOST_CHECK(real_vector[s] == pre_vector[s]);
BOOST_CHECK(&(pre_vector[s]) == &(pre_vector.begin()[s]));
BOOST_CHECK(&(pre_vector[s]) == &*(pre_vector.begin() + s));
BOOST_CHECK(&(pre_vector[s]) == &*((pre_vector.end() + s) - real_vector.size()));
}
// BOOST_CHECK(realtype(pre_vector) == real_vector);
BOOST_CHECK(pretype(real_vector.begin(), real_vector.end()) == pre_vector);
BOOST_CHECK(pretype(pre_vector.begin(), pre_vector.end()) == pre_vector);
size_t pos = 0;
BOOST_FOREACH(const T& v, pre_vector) {
BOOST_CHECK(v == real_vector[pos++]);
}
BOOST_REVERSE_FOREACH(const T& v, pre_vector) {
BOOST_CHECK(v == real_vector[--pos]);
}
BOOST_FOREACH(const T& v, const_pre_vector) {
BOOST_CHECK(v == real_vector[pos++]);
}
BOOST_REVERSE_FOREACH(const T& v, const_pre_vector) {
BOOST_CHECK(v == real_vector[--pos]);
}
CDataStream ss1(SER_DISK, 0);
CDataStream ss2(SER_DISK, 0);
ss1 << real_vector;
ss2 << pre_vector;
BOOST_CHECK_EQUAL(ss1.size(), ss2.size());
for (Size s = 0; s < ss1.size(); s++) {
BOOST_CHECK_EQUAL(ss1[s], ss2[s]);
}
}
public:
void resize(Size s) {
real_vector.resize(s);
BOOST_CHECK_EQUAL(real_vector.size(), s);
pre_vector.resize(s);
BOOST_CHECK_EQUAL(pre_vector.size(), s);
test();
}
void reserve(Size s) {
real_vector.reserve(s);
BOOST_CHECK(real_vector.capacity() >= s);
pre_vector.reserve(s);
BOOST_CHECK(pre_vector.capacity() >= s);
test();
}
void insert(Size position, const T& value) {
real_vector.insert(real_vector.begin() + position, value);
pre_vector.insert(pre_vector.begin() + position, value);
test();
}
void insert(Size position, Size count, const T& value) {
real_vector.insert(real_vector.begin() + position, count, value);
pre_vector.insert(pre_vector.begin() + position, count, value);
test();
}
template<typename I>
void insert_range(Size position, I first, I last) {
real_vector.insert(real_vector.begin() + position, first, last);
pre_vector.insert(pre_vector.begin() + position, first, last);
test();
}
void erase(Size position) {
real_vector.erase(real_vector.begin() + position);
pre_vector.erase(pre_vector.begin() + position);
test();
}
void erase(Size first, Size last) {
real_vector.erase(real_vector.begin() + first, real_vector.begin() + last);
pre_vector.erase(pre_vector.begin() + first, pre_vector.begin() + last);
test();
}
void update(Size pos, const T& value) {
real_vector[pos] = value;
pre_vector[pos] = value;
test();
}
void push_back(const T& value) {
real_vector.push_back(value);
pre_vector.push_back(value);
test();
}
void pop_back() {
real_vector.pop_back();
pre_vector.pop_back();
test();
}
void clear() {
real_vector.clear();
pre_vector.clear();
}
void assign(Size n, const T& value) {
real_vector.assign(n, value);
pre_vector.assign(n, value);
}
Size size() {
return real_vector.size();
}
Size capacity() {
return pre_vector.capacity();
}
void shrink_to_fit() {
pre_vector.shrink_to_fit();
test();
}
};
BOOST_AUTO_TEST_CASE(PrevectorTestInt)
{
for (int j = 0; j < 64; j++) {
prevector_tester<8, int> test;
for (int i = 0; i < 2048; i++) {
int r = insecure_rand();
if ((r % 4) == 0) {
test.insert(insecure_rand() % (test.size() + 1), insecure_rand());
}
if (test.size() > 0 && ((r >> 2) % 4) == 1) {
test.erase(insecure_rand() % test.size());
}
if (((r >> 4) % 8) == 2) {
int new_size = std::max<int>(0, std::min<int>(30, test.size() + (insecure_rand() % 5) - 2));
test.resize(new_size);
}
if (((r >> 7) % 8) == 3) {
test.insert(insecure_rand() % (test.size() + 1), 1 + (insecure_rand() % 2), insecure_rand());
}
if (((r >> 10) % 8) == 4) {
int del = std::min<int>(test.size(), 1 + (insecure_rand() % 2));
int beg = insecure_rand() % (test.size() + 1 - del);
test.erase(beg, beg + del);
}
if (((r >> 13) % 16) == 5) {
test.push_back(insecure_rand());
}
if (test.size() > 0 && ((r >> 17) % 16) == 6) {
test.pop_back();
}
if (((r >> 21) % 32) == 7) {
int values[4];
int num = 1 + (insecure_rand() % 4);
for (int i = 0; i < num; i++) {
values[i] = insecure_rand();
}
test.insert_range(insecure_rand() % (test.size() + 1), values, values + num);
}
if (((r >> 26) % 32) == 8) {
int del = std::min<int>(test.size(), 1 + (insecure_rand() % 4));
int beg = insecure_rand() % (test.size() + 1 - del);
test.erase(beg, beg + del);
}
r = insecure_rand();
if (r % 32 == 9) {
test.reserve(insecure_rand() % 32);
}
if ((r >> 5) % 64 == 10) {
test.shrink_to_fit();
}
if (test.size() > 0) {
test.update(insecure_rand() % test.size(), insecure_rand());
}
if (((r >> 11) & 1024) == 11) {
test.clear();
}
if (((r >> 21) & 512) == 12) {
test.assign(insecure_rand() % 32, insecure_rand());
}
}
}
}
BOOST_AUTO_TEST_SUITE_END()
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