//
// libsemigroups - C++ library for semigroups and monoids
// Copyright (C) 2020 James D. Mitchell
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#include "catch.hpp" // for REQUIRE etc
#include "test-main.hpp" // for LIBSEMIGROUPS_TEST_CASE
#include "libsemigroups/order.hpp" // for ShortLexCompare
#include "libsemigroups/types.hpp" // for word_type
#include "libsemigroups/wilo.hpp" // for cbegin_wilo
#include "libsemigroups/wislo.hpp" // for cbegin_wislo
#include "libsemigroups/word.hpp" // for number_of_words
namespace libsemigroups {
LIBSEMIGROUPS_TEST_CASE( "wislo",
"000",
"n: 2, min; 1, max: 4",
"[wislo][quick]") {
word_type first = { 0};
word_type last = { 0, 0, 0, 0};
auto w = std::vector<word_type>(cbegin_wislo( 2, first, last),
cend_wislo( 2, first, last));
REQUIRE(w
== std::vector<word_type>({{ 0},
{ 1},
{ 0, 0},
{ 0, 1},
{ 1, 0},
{ 1, 1},
{ 0, 0, 0},
{ 0, 0, 1},
{ 0, 1, 0},
{ 0, 1, 1},
{ 1, 0, 0},
{ 1, 0, 1},
{ 1, 1, 0},
{ 1, 1, 1}}));
REQUIRE(w.size() == 14);
REQUIRE(std::is_sorted(w.cbegin(), w.cend(), ShortLexCompare<word_type>()));
}
LIBSEMIGROUPS_TEST_CASE( "wislo", "001", "corner cases", "[wislo][quick]") {
word_type first = { 0, 0, 0, 0};
word_type last = { 0, 0, 0, 0, 0};
auto w1 = std::vector<word_type>(cbegin_wislo( 2, last, first),
cend_wislo( 2, last, first));
REQUIRE(w1.empty());
auto w2 = std::vector<word_type>(cbegin_wislo( 2, last, last),
cend_wislo( 2, last, last));
REQUIRE(w2.empty());
auto w3 = std::vector<word_type>(cbegin_wislo( 2, last, word_type( 6, 0)),
cend_wislo( 2, last, word_type( 6, 0)));
REQUIRE(w3.size() == number_of_words( 2, 5, 6));
REQUIRE(w3.size() == 32);
REQUIRE(w3
== std::vector<word_type>(
{{ 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 1}, { 0, 0, 0, 1, 0},
{ 0, 0, 0, 1, 1}, { 0, 0, 1, 0, 0}, { 0, 0, 1, 0, 1},
{ 0, 0, 1, 1, 0}, { 0, 0, 1, 1, 1}, { 0, 1, 0, 0, 0},
{ 0, 1, 0, 0, 1}, { 0, 1, 0, 1, 0}, { 0, 1, 0, 1, 1},
{ 0, 1, 1, 0, 0}, { 0, 1, 1, 0, 1}, { 0, 1, 1, 1, 0},
{ 0, 1, 1, 1, 1}, { 1, 0, 0, 0, 0}, { 1, 0, 0, 0, 1},
{ 1, 0, 0, 1, 0}, { 1, 0, 0, 1, 1}, { 1, 0, 1, 0, 0},
{ 1, 0, 1, 0, 1}, { 1, 0, 1, 1, 0}, { 1, 0, 1, 1, 1},
{ 1, 1, 0, 0, 0}, { 1, 1, 0, 0, 1}, { 1, 1, 0, 1, 0},
{ 1, 1, 0, 1, 1}, { 1, 1, 1, 0, 0}, { 1, 1, 1, 0, 1},
{ 1, 1, 1, 1, 0}, { 1, 1, 1, 1, 1}}));
REQUIRE(
std::is_sorted(w3.cbegin(), w3.cend(), ShortLexCompare<word_type>()));
REQUIRE(std::is_sorted(
w3.cbegin(), w3.cend(), LexicographicalCompare<word_type>()));
}
LIBSEMIGROUPS_TEST_CASE( "wislo",
"002",
"n: 3, min; 0, max: 10",
"[wislo][quick]") {
word_type first = {};
word_type last( 10, 0);
auto w = std::vector<word_type>(cbegin_wislo( 3, first, last),
cend_wislo( 3, first, last));
REQUIRE(w.size() == number_of_words( 3, 0, 10));
REQUIRE(w.size() == 29524);
REQUIRE(std::is_sorted(w.cbegin(), w.cend(), ShortLexCompare<word_type>()));
}
LIBSEMIGROUPS_TEST_CASE( "wislo",
"003",
"n: 3, min; 0, max: 13",
"[wislo][quick][no-valgrind]") {
word_type first = {};
word_type last( 13, 0);
std::vector<word_type> w;
w.reserve(number_of_words( 3, 0, 13));
w.insert(w.end(), cbegin_wislo( 3, first, last), cend_wislo( 3, first, last));
REQUIRE(w.size() == number_of_words( 3, 0, 13));
REQUIRE(w.size() == 797161);
REQUIRE(std::is_sorted(w.cbegin(), w.cend(), ShortLexCompare<word_type>()));
}
LIBSEMIGROUPS_TEST_CASE( "wislo",
"004",
"lex + sort",
"[wislo][quick][no-valgrind]") {
word_type first = {};
word_type last( 13, 2);
auto w = std::vector<word_type>(cbegin_wilo( 3, 13, first, last),
cend_wilo( 3, 13, first, last));
std::sort(w.begin(), w.end(), ShortLexCompare<word_type>());
REQUIRE(w.size() == number_of_words( 3, 0, 13));
REQUIRE(w.size() == 797161);
REQUIRE(std::is_sorted(w.cbegin(), w.cend(), ShortLexCompare<word_type>()));
}
LIBSEMIGROUPS_TEST_CASE( "wislo", "005", "code coverage", "[wislo][quick]") {
word_type first = { 0, 0, 0};
word_type last = { 0, 0, 0, 0};
const_wislo_iterator it;
it = cbegin_wislo( 2, first, last);
REQUIRE(*it == word_type({ 0, 0, 0}));
REQUIRE(it->size() == 3);
REQUIRE(*it++ == word_type({ 0, 0, 0}));
REQUIRE(*it == word_type({ 0, 0, 1}));
auto it2 = it;
REQUIRE(it == it2);
it++;
REQUIRE(it2 != it);
REQUIRE(*it == word_type({ 0, 1, 0}));
REQUIRE(*it2 == word_type({ 0, 0, 1}));
swap(it, it2);
REQUIRE(it2 != it);
REQUIRE(*it2 == word_type({ 0, 1, 0}));
REQUIRE(*it == word_type({ 0, 0, 1}));
std::swap(it, it2);
REQUIRE(it2 != it);
REQUIRE(*it == word_type({ 0, 1, 0}));
REQUIRE(*it2 == word_type({ 0, 0, 1}));
it2++;
REQUIRE(it == it2);
REQUIRE(it++ == it2++);
REQUIRE(it == it2);
REQUIRE(++it == ++it2);
const_wislo_iterator it3(cbegin_wislo( 2, first, last));
it3 = cbegin_wislo( 2, first, last);
REQUIRE(*it3 == word_type({ 0, 0, 0}));
REQUIRE(it->size() == 3);
REQUIRE(*it3++ == word_type({ 0, 0, 0}));
REQUIRE(*it3 == word_type({ 0, 0, 1}));
}
} // namespace libsemigroups
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