memgraph/tests/unit/database_transaction_timeout.cpp
florijan 03f1547a8d Invalidate distributed plan caches
Summary:
 - Remove caches on workers as a result of plan expiration or race
   during insertion.
 - Extract caching functionality into a class.
 - Minor refactor of Interpreter::operator()
 - New RPC and test for it.
 - Rename ConsumePlanRes to DispatchPlanRes for consistency, remove
   return value as it's always true and never used.
 - Interpreter is now constructed with a `GraphDb` reference. At the
   moment only for reaching the `distributed::PlanDispatcher`, but in
   the future we should probably use that primarily for planning.

I added a function to `PlanConsumer` that is only used for testing.
I prefer not doing this, but I felt this needed testing. I can remove
it now if you like.

Reviewers: teon.banek, msantl

Reviewed By: teon.banek

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D1292
2018-03-13 14:59:51 +01:00

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#include <glog/logging.h>
#include <gtest/gtest.h>
#include "communication/result_stream_faker.hpp"
#include "query/exceptions.hpp"
#include "query/interpreter.hpp"
DECLARE_int32(query_execution_time_sec);
TEST(TransactionTimeout, TransactionTimeout) {
FLAGS_query_execution_time_sec = 3;
database::SingleNode db;
query::Interpreter interpreter{db};
auto interpret = [&](auto &dba, const std::string &query) {
ResultStreamFaker stream;
interpreter(query, dba, {}, false).PullAll(stream);
};
{
database::GraphDbAccessor dba(db);
interpret(dba, "MATCH (n) RETURN n");
}
{
database::GraphDbAccessor dba(db);
std::this_thread::sleep_for(std::chrono::seconds(5));
ASSERT_THROW(interpret(dba, "MATCH (n) RETURN n"), query::HintedAbortError);
}
{
database::GraphDbAccessor dba(db);
interpret(dba, "MATCH (n) RETURN n");
}
}