ZeroTierOne/ext/libpqxx-7.7.3/test/unit/test_transaction.cxx
2022-06-24 10:12:36 -07:00

114 lines
2.3 KiB
C++

#include <pqxx/nontransaction>
#include <pqxx/robusttransaction>
#include "../test_helpers.hxx"
namespace
{
void test_nontransaction_continues_after_error()
{
pqxx::connection c;
pqxx::nontransaction tx{c};
PQXX_CHECK_EQUAL(
tx.query_value<int>("SELECT 9"), 9, "Simple query went wrong.");
PQXX_CHECK_THROWS(
tx.exec("SELECT 1/0"), pqxx::sql_error, "Expected error did not happen.");
PQXX_CHECK_EQUAL(
tx.query_value<int>("SELECT 5"), 5, "Wrong result after error.");
}
std::string const table{"pqxx_test_transaction"};
void delete_temp_table(pqxx::transaction_base &tx)
{
tx.exec0(std::string{"DROP TABLE IF EXISTS "} + table);
}
void create_temp_table(pqxx::transaction_base &tx)
{
tx.exec0("CREATE TEMP TABLE " + table + " (x integer)");
}
void insert_temp_table(pqxx::transaction_base &tx, int value)
{
tx.exec0(
"INSERT INTO " + table + " (x) VALUES (" + pqxx::to_string(value) + ")");
}
int count_temp_table(pqxx::transaction_base &tx)
{
return tx.query_value<int>("SELECT count(*) FROM " + table);
}
void test_nontransaction_autocommits()
{
pqxx::connection c;
pqxx::nontransaction tx1{c};
delete_temp_table(tx1);
create_temp_table(tx1);
tx1.commit();
pqxx::nontransaction tx2{c};
insert_temp_table(tx2, 4);
tx2.abort();
pqxx::nontransaction tx3{c};
PQXX_CHECK_EQUAL(
count_temp_table(tx3), 1,
"Did not keep effect of aborted nontransaction.");
delete_temp_table(tx3);
}
template<typename TX> void test_double_close()
{
pqxx::connection c;
TX tx1{c};
tx1.exec1("SELECT 1");
tx1.commit();
tx1.commit();
TX tx2{c};
tx2.exec1("SELECT 2");
tx2.abort();
tx2.abort();
TX tx3{c};
tx3.exec1("SELECT 3");
tx3.commit();
PQXX_CHECK_THROWS(
tx3.abort(), pqxx::usage_error, "Abort after commit not caught.");
;
TX tx4{c};
tx4.exec1("SELECT 4");
tx4.abort();
PQXX_CHECK_THROWS(
tx4.commit(), pqxx::usage_error, "Commit after abort not caught.");
}
void test_transaction()
{
test_nontransaction_continues_after_error();
test_nontransaction_autocommits();
test_double_close<pqxx::transaction<>>();
test_double_close<pqxx::read_transaction>();
test_double_close<pqxx::nontransaction>();
test_double_close<pqxx::robusttransaction<>>();
}
PQXX_REGISTER_TEST(test_transaction);
} // namespace