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#include "gtest/gtest.h"
#include "lldb/Utility/TaskPool.h"
TEST (TaskPoolTest, AddTask)
{
auto fn = [](int x) { return x * x + 1; };
auto f1 = TaskPool::AddTask(fn, 1);
auto f2 = TaskPool::AddTask(fn, 2);
auto f3 = TaskPool::AddTask(fn, 3);
auto f4 = TaskPool::AddTask(fn, 4);
ASSERT_EQ (10, f3.get());
ASSERT_EQ ( 2, f1.get());
ASSERT_EQ (17, f4.get());
ASSERT_EQ ( 5, f2.get());
}
TEST (TaskPoolTest, RunTasks)
{
std::vector<int> r(4);
auto fn = [](int x, int& y) { y = x * x + 1; };
TaskPool::RunTasks(
[fn, &r]() { fn(1, r[0]); },
[fn, &r]() { fn(2, r[1]); },
[fn, &r]() { fn(3, r[2]); },
[fn, &r]() { fn(4, r[3]); }
);
ASSERT_EQ ( 2, r[0]);
ASSERT_EQ ( 5, r[1]);
ASSERT_EQ (10, r[2]);
ASSERT_EQ (17, r[3]);
}
TEST (TaskPoolTest, TaskRunner)
{
auto fn = [](int x) { return std::make_pair(x, x * x); };
TaskRunner<std::pair<int, int>> tr;
tr.AddTask(fn, 1);
tr.AddTask(fn, 2);
tr.AddTask(fn, 3);
tr.AddTask(fn, 4);
int count = 0;
while (true)
{
auto f = tr.WaitForNextCompletedTask();
if (!f.valid())
break;
++count;
std::pair<int, int> v = f.get();
ASSERT_EQ (v.first * v.first, v.second);
}
ASSERT_EQ(4, count);
}
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