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5586802b86
Some tasks are invoked multiple times. Normally those tasks are broken up inside a loop and had to be continued there. With coroutines that is easier as it's possible to suspend inside a loop. Coroutines which are lambdas should not capture anythig as the lifetime of the captured values might end before the coroutine completes. For that purpose `std::bind_front` is used.
104 lines
2.3 KiB
C++
104 lines
2.3 KiB
C++
/* Copyright (C) 2025 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU 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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*
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* 0 A.D. 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "lib/self_test.h"
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#include "ps/Loader.h"
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class TestLoader : public CxxTest::TestSuite
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{
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public:
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void test_PausedYield()
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{
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int position{0};
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PS::Loader::Task task{[](int& p) -> PS::Loader::Task
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{
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p = 1;
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co_yield 50;
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p = 2;
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co_return 0;
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}(position)};
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TS_ASSERT_EQUALS(task.GetProgress(), 0);
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TS_ASSERT(!task.IsDone());
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TS_ASSERT_EQUALS(position, 0);
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task.Step(-1);
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TS_ASSERT_EQUALS(task.GetProgress(), 50);
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TS_ASSERT(!task.IsDone());
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TS_ASSERT_EQUALS(position, 1);
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task.Step(-1);
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TS_ASSERT_EQUALS(task.GetProgress(), 50);
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TS_ASSERT(task.IsDone());
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TS_ASSERT_EQUALS(position, 2);
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}
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void test_UnpausedYield()
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{
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int position{0};
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PS::Loader::Task task{[](int& p) -> PS::Loader::Task
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{
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p = 1;
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co_yield 50;
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p = 2;
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co_return 0;
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}(position)};
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TS_ASSERT_EQUALS(task.GetProgress(), 0);
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TS_ASSERT(!task.IsDone());
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TS_ASSERT_EQUALS(position, 0);
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task.Step(10);
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TS_ASSERT_EQUALS(task.GetProgress(), 50);
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TS_ASSERT(task.IsDone());
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TS_ASSERT_EQUALS(position, 2);
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}
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void test_ForceAwait()
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{
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int position{0};
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PS::Loader::Task task{[](int& p) -> PS::Loader::Task
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{
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p = 1;
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co_yield 50;
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p = 2;
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co_await std::suspend_always{};
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p = 3;
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co_return 0;
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}(position)};
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TS_ASSERT_EQUALS(task.GetProgress(), 0);
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TS_ASSERT(!task.IsDone());
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TS_ASSERT_EQUALS(position, 0);
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task.Step(10);
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TS_ASSERT_EQUALS(task.GetProgress(), 50);
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TS_ASSERT(!task.IsDone());
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TS_ASSERT_EQUALS(position, 2);
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task.Step(-1);
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TS_ASSERT_EQUALS(task.GetProgress(), 50);
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TS_ASSERT(task.IsDone());
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TS_ASSERT_EQUALS(position, 3);
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}
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};
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