mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-28 16:58:51 +00:00
79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
#include <pqxx/nontransaction>
|
|
#include <pqxx/robusttransaction>
|
|
#include <pqxx/transactor>
|
|
|
|
#include "test_helpers.hxx"
|
|
|
|
using namespace pqxx;
|
|
|
|
|
|
// Test program for libpqxx. Verify abort behaviour of RobustTransaction.
|
|
//
|
|
// The program will attempt to add an entry to a table called "pqxxevents",
|
|
// with a key column called "year"--and then abort the change.
|
|
namespace
|
|
{
|
|
// Let's take a boring year that is not going to be in the "pqxxevents" table
|
|
constexpr int BoringYear{1977};
|
|
|
|
// Count events and specifically events occurring in Boring Year, leaving the
|
|
// former count in the result pair's first member, and the latter in second.
|
|
std::pair<int, int> count_events(connection &conn, std::string const &table)
|
|
{
|
|
std::string const count_query{"SELECT count(*) FROM " + table};
|
|
nontransaction tx{conn};
|
|
return std::make_pair(
|
|
tx.query_value<int>(count_query),
|
|
tx.query_value<int>(count_query + " WHERE year=" + to_string(BoringYear)));
|
|
}
|
|
|
|
|
|
struct deliberate_error : std::exception
|
|
{};
|
|
|
|
|
|
void test_037()
|
|
{
|
|
connection conn;
|
|
{
|
|
nontransaction tx{conn};
|
|
test::create_pqxxevents(tx);
|
|
}
|
|
|
|
std::string const Table{"pqxxevents"};
|
|
|
|
auto const Before{
|
|
perform([&conn, &Table] { return count_events(conn, Table); })};
|
|
PQXX_CHECK_EQUAL(
|
|
Before.second, 0,
|
|
"Already have event for " + to_string(BoringYear) + ", cannot test.");
|
|
|
|
{
|
|
quiet_errorhandler d(conn);
|
|
PQXX_CHECK_THROWS(
|
|
perform([&conn, &Table] {
|
|
robusttransaction<> tx{conn};
|
|
tx.exec0(
|
|
"INSERT INTO " + Table + " VALUES (" + to_string(BoringYear) +
|
|
", "
|
|
"'yawn')");
|
|
|
|
throw deliberate_error();
|
|
}),
|
|
deliberate_error,
|
|
"Did not get expected exception from failing transactor.");
|
|
}
|
|
|
|
auto const After{
|
|
perform([&conn, &Table] { return count_events(conn, Table); })};
|
|
|
|
PQXX_CHECK_EQUAL(After.first, Before.first, "Number of events changed.");
|
|
PQXX_CHECK_EQUAL(
|
|
After.second, Before.second,
|
|
"Number of events for " + to_string(BoringYear) + " changed.");
|
|
}
|
|
|
|
|
|
PQXX_REGISTER_TEST(test_037);
|
|
} // namespace
|