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#include "common.hpp"
#include "sdsl/rmq_support.hpp"
#include "gtest/gtest.h"
#include <vector>
#include <string>
#include <stack>
using namespace std;
using namespace sdsl;
namespace
{
typedef vector<uint64_t> tVUI;
string test_file;
string temp_dir;
string temp_file;
template<class T>
class rmq_test : public ::testing::Test { };
using testing::Types;
typedef Types<
sdsl::rmq_succinct_sct<>,
sdsl::rmq_succinct_sada<>
> Implementations;
TYPED_TEST_CASE(rmq_test, Implementations);
TYPED_TEST(rmq_test, construct_and_store)
{
static_assert(sdsl::util::is_regular<TypeParam>::value, "Type is not regular");
int_vector<> v;
load_from_file(v, test_file);
TypeParam rmq(&v);
ASSERT_TRUE(sdsl::store_to_file(rmq, temp_file));
}
// helper class for next test
class state
{
public:
uint64_t l, r; // left and right border of interval
uint64_t idx; // index of the min value
uint64_t min; // min value in the interval
state(uint64_t fl=0, uint64_t fr=0, uint64_t fidx = 0, uint64_t fmin=0) :
l(fl), r(fr), idx(fidx), min(fmin) {}
};
//! Test range minimum queries
TYPED_TEST(rmq_test, rmq_load_and_query)
{
int_vector<> v;
ASSERT_TRUE(load_from_file(v, test_file));
TypeParam rmq;
ASSERT_TRUE(load_from_file(rmq, temp_file));
ASSERT_EQ(v.size(), rmq.size());
if (rmq.size() > 0) {
stack<state> s;
uint64_t idx = rmq(0, rmq.size()-1);
ASSERT_TRUE(idx < rmq.size());
s.push(state(0, rmq.size()-1, idx, v[idx]));
while (!s.empty()) {
state st = s.top(); s.pop();
if (st.l < st.idx) {
idx = rmq(st.l, st.idx-1);
ASSERT_TRUE(idx >= st.l); ASSERT_TRUE(idx <= st.idx-1);
ASSERT_TRUE(v[idx] >= v[st.idx])
<< "v["<<idx<<"]="<< v[idx]
<< " < " << "v["<<st.idx<<"]="
<< v[st.idx] << endl
<< "[" << st.l << "," << st.r << "]" << endl;
s.push(state(st.l, st.idx-1, idx, v[idx]));
}
if (st.idx < st.r) {
idx = rmq(st.idx+1, st.r);
ASSERT_TRUE(idx >= st.idx+1); ASSERT_TRUE(idx <= st.r);
ASSERT_TRUE(v[idx] >= v[st.idx])
<< "v["<<idx<<"]="<< v[idx]
<< " < " << "v["<<st.idx<<"]="
<< v[st.idx] << endl
<< "[" << st.l << "," << st.r << "]" << endl;
s.push(state(st.idx+1, st.r, idx, v[idx]));
}
}
}
}
//! Test range minimum queries
TYPED_TEST(rmq_test, rmq_load_and_move_and_query)
{
int_vector<> v;
ASSERT_TRUE(load_from_file(v, test_file));
TypeParam rmq_load;
ASSERT_TRUE(load_from_file(rmq_load, temp_file));
TypeParam rmq = std::move(rmq_load);
ASSERT_EQ(v.size(), rmq.size());
if (rmq.size() > 0) {
stack<state> s;
uint64_t idx = rmq(0, rmq.size()-1);
ASSERT_TRUE(idx < rmq.size());
s.push(state(0, rmq.size()-1, idx, v[idx]));
while (!s.empty()) {
state st = s.top(); s.pop();
if (st.l < st.idx) {
idx = rmq(st.l, st.idx-1);
ASSERT_TRUE(idx >= st.l); ASSERT_TRUE(idx <= st.idx-1);
ASSERT_TRUE(v[idx] >= v[st.idx])
<< "v["<<idx<<"]="<< v[idx]
<< " < " << "v["<<st.idx<<"]="
<< v[st.idx] << endl
<< "[" << st.l << "," << st.r << "]" << endl;
s.push(state(st.l, st.idx-1, idx, v[idx]));
}
if (st.idx < st.r) {
idx = rmq(st.idx+1, st.r);
ASSERT_TRUE(idx >= st.idx+1); ASSERT_TRUE(idx <= st.r);
ASSERT_TRUE(v[idx] >= v[st.idx])
<< "v["<<idx<<"]="<< v[idx]
<< " < " << "v["<<st.idx<<"]="
<< v[st.idx] << endl
<< "[" << st.l << "," << st.r << "]" << endl;
s.push(state(st.idx+1, st.r, idx, v[idx]));
}
}
}
}
#if SDSL_HAS_CEREAL
template <typename in_archive_t, typename out_archive_t, typename TypeParam>
void do_serialisation(TypeParam const & l)
{
{
std::ofstream os{temp_file, std::ios::binary};
out_archive_t oarchive{os};
oarchive(l);
}
{
TypeParam in_l{};
std::ifstream is{temp_file, std::ios::binary};
in_archive_t iarchive{is};
iarchive(in_l);
EXPECT_EQ(l, in_l);
}
}
TYPED_TEST(rmq_test, cereal)
{
if (temp_dir != "@/")
{
TypeParam rmq;
ASSERT_TRUE(load_from_file(rmq, temp_file));
do_serialisation<cereal::BinaryInputArchive, cereal::BinaryOutputArchive> (rmq);
do_serialisation<cereal::PortableBinaryInputArchive, cereal::PortableBinaryOutputArchive>(rmq);
do_serialisation<cereal::JSONInputArchive, cereal::JSONOutputArchive> (rmq);
do_serialisation<cereal::XMLInputArchive, cereal::XMLOutputArchive> (rmq);
}
}
#endif // SDSL_HAS_CEREAL
TYPED_TEST(rmq_test, delete_)
{
sdsl::remove(temp_file);
}
} // namespace
int main(int argc, char** argv)
{
::testing::InitGoogleTest(&argc, argv);
init_2_arg_test(argc, argv, "RMQ", test_file, temp_dir, temp_file);
return RUN_ALL_TESTS();
}
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