memgraph/tests/unit/mvcc.cpp

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#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "mvcc/record.hpp"
#include "mvcc/version_list.hpp"
#include "storage/vertex.hpp"
#include "transactions/engine.hpp"
class Prop : public mvcc::Record<Prop> {};
TEST(MVCC, Case1Test3) {
tx::Engine engine;
auto t1 = engine.begin();
Prop *prop;
mvcc::VersionList<Prop> version_list(*t1, prop);
t1->commit();
auto t2 = engine.begin();
auto v2 = version_list.update(*t2);
t2->commit();
auto t3 = engine.begin();
auto t4 = engine.begin();
version_list.update(*t4);
t4->commit();
EXPECT_THROW(version_list.remove(v2, *t3), SerializationError);
}
TEST(MVCC, InSnapshot) {
tx::Engine engine;
Prop *prop;
auto t1 = engine.begin();
mvcc::VersionList<Prop> version_list(*t1, prop);
t1->commit();
auto t2 = engine.begin();
version_list.update(*t2);
auto t3 = engine.begin(); // t2 is in snapshot of t3
auto v = version_list.find(*t3);
t2->commit();
EXPECT_THROW(version_list.update(v, *t3), SerializationError);
}
int main(int argc, char **argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}