ZeroTierOne/ext/libpqxx-7.7.3/test/test60.cxx
2022-06-24 10:12:36 -07:00

86 lines
2.0 KiB
C++

#include <iostream>
#include <pqxx/nontransaction>
#include <pqxx/pipeline>
#include <pqxx/transaction>
#include "test_helpers.hxx"
using namespace pqxx;
// Example program for libpqxx. Test session variable functionality.
namespace
{
std::string GetDatestyle(connection &conn)
{
return conn.get_var("DATESTYLE");
}
std::string SetDatestyle(connection &conn, std::string style)
{
conn.set_session_var("DATESTYLE", style);
std::string const fullname{GetDatestyle(conn)};
PQXX_CHECK(
not std::empty(fullname),
"Setting datestyle to " + style + " makes it an empty string.");
return fullname;
}
void CheckDatestyle(connection &conn, std::string expected)
{
PQXX_CHECK_EQUAL(GetDatestyle(conn), expected, "Got wrong datestyle.");
}
void RedoDatestyle(
connection &conn, std::string const &style, std::string const &expected)
{
PQXX_CHECK_EQUAL(
SetDatestyle(conn, style), expected, "Set wrong datestyle.");
}
void ActivationTest(
connection &conn, std::string const &style, std::string const &expected)
{
RedoDatestyle(conn, style, expected);
CheckDatestyle(conn, expected);
}
void test_060()
{
connection conn;
PQXX_CHECK(not std::empty(GetDatestyle(conn)), "Initial datestyle not set.");
std::string const ISOname{SetDatestyle(conn, "ISO")};
std::string const SQLname{SetDatestyle(conn, "SQL")};
PQXX_CHECK_NOT_EQUAL(ISOname, SQLname, "Same datestyle in SQL and ISO.");
RedoDatestyle(conn, "SQL", SQLname);
ActivationTest(conn, "ISO", ISOname);
ActivationTest(conn, "SQL", SQLname);
PQXX_CHECK_THROWS(
conn.set_session_var("bonjour_name", std::optional<std::string>{}),
pqxx::variable_set_to_null,
"Setting a variable to null did not report the error correctly.");
// Prove that setting an unknown variable causes an error, as expected
quiet_errorhandler d{conn};
PQXX_CHECK_THROWS(
conn.set_session_var("NONEXISTENT_VARIABLE_I_HOPE", 1), sql_error,
"Setting unknown variable failed to fail.");
}
PQXX_REGISTER_TEST(test_060);
} // namespace