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#include <string>
#include "catch2/catch.hpp"
#include "src/buildtool/multithreading/async_map.hpp"
#include "src/buildtool/multithreading/async_map_node.hpp"
#include "src/buildtool/multithreading/task_system.hpp"
TEST_CASE("Single-threaded: nodes only created once", "[async_map]") {
AsyncMap<std::string, int> map;
auto* key_node = map.GetOrCreateNode("key");
CHECK(key_node != nullptr);
auto* other_node = map.GetOrCreateNode("otherkey");
CHECK(other_node != nullptr);
auto* should_be_key_node = map.GetOrCreateNode("key");
CHECK(should_be_key_node != nullptr);
CHECK(key_node != other_node);
CHECK(key_node == should_be_key_node);
}
TEST_CASE("Nodes only created once and survive the map destruction",
"[async_map]") {
using NodePtr = typename AsyncMap<std::string, int>::NodePtr;
NodePtr key_node{nullptr};
NodePtr other_node{nullptr};
NodePtr should_be_key_node{nullptr};
{
AsyncMap<std::string, int> map;
{
TaskSystem ts;
ts.QueueTask([&key_node, &map]() {
auto* node = map.GetOrCreateNode("key");
CHECK(node != nullptr);
key_node = node;
});
ts.QueueTask([&other_node, &map]() {
auto* node = map.GetOrCreateNode("otherkey");
CHECK(node != nullptr);
other_node = node;
});
ts.QueueTask([&should_be_key_node, &map]() {
auto* node = map.GetOrCreateNode("key");
CHECK(node != nullptr);
should_be_key_node = node;
});
}
}
CHECK(key_node != nullptr);
CHECK(other_node != nullptr);
CHECK(should_be_key_node != nullptr);
CHECK(key_node != other_node);
CHECK(key_node == should_be_key_node);
}
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