mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2020 Telegram Systems LLP
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*/
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#include "td/utils/Slice.h"
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#include "td/utils/StringBuilder.h"
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#include "td/utils/tests.h"
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#include "td/utils/Variant.h"
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REGISTER_TESTS(variant);
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static const size_t BUF_SIZE = 1024 * 1024;
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static char buf[BUF_SIZE], buf2[BUF_SIZE];
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static td::StringBuilder sb(td::MutableSlice(buf, BUF_SIZE - 1));
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static td::StringBuilder sb2(td::MutableSlice(buf2, BUF_SIZE - 1));
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static td::string move_sb() {
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auto res = sb.as_cslice().str();
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sb.clear();
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return res;
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}
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static td::string name(int id) {
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if (id == 1) {
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return "A";
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}
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if (id == 2) {
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return "B";
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}
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if (id == 3) {
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return "C";
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}
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return "";
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}
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template <int id>
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class Class {
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public:
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Class() {
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sb << "+" << name(id);
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}
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Class(const Class &) = delete;
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Class &operator=(const Class &) = delete;
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Class(Class &&) = delete;
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Class &operator=(Class &&) = delete;
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~Class() {
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sb << "-" << name(id);
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}
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};
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using A = Class<1>;
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using B = Class<2>;
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using C = Class<3>;
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TEST(Variant, simple) {
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{
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td::Variant<td::unique_ptr<A>, td::unique_ptr<B>, td::unique_ptr<C>> abc;
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ASSERT_STREQ("", sb.as_cslice());
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abc = td::make_unique<A>();
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ASSERT_STREQ("+A", sb.as_cslice());
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sb.clear();
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abc = td::make_unique<B>();
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ASSERT_STREQ("+B-A", sb.as_cslice());
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sb.clear();
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abc = td::make_unique<C>();
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ASSERT_STREQ("+C-B", sb.as_cslice());
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sb.clear();
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}
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ASSERT_STREQ("-C", move_sb());
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sb.clear();
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};
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