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#include <iostream>
#include "test_helpers.hxx"
using namespace PGSTD;
using namespace pqxx;
// Example program for libpqxx. Test session variable functionality.
namespace
{
string GetDatestyle(connection_base &C)
{
return nontransaction(C, "getdatestyle").get_variable("DATESTYLE");
}
string SetDatestyle(connection_base &C, string style)
{
C.set_variable("DATESTYLE", style);
const string fullname = GetDatestyle(C);
cout << "Set datestyle to " << style << ": " << fullname << endl;
PQXX_CHECK(
!fullname.empty(),
"Setting datestyle to " + style + " makes it an empty string.");
return fullname;
}
void CheckDatestyle(connection_base &C, string expected)
{
PQXX_CHECK_EQUAL(GetDatestyle(C), expected, "Got wrong datestyle.");
}
void RedoDatestyle(connection_base &C, string style, string expected)
{
PQXX_CHECK_EQUAL(SetDatestyle(C, style), expected, "Set wrong datestyle.");
}
void ActivationTest(connection_base &C, string style, string expected)
{
RedoDatestyle(C, style, expected);
cout << "Deactivating connection..." << endl;
C.deactivate();
CheckDatestyle(C, expected);
cout << "Reactivating connection..." << endl;
C.activate();
CheckDatestyle(C, expected);
}
void test_060(transaction_base &orgT)
{
connection_base &C(orgT.conn());
orgT.abort();
PQXX_CHECK(!GetDatestyle(C).empty(), "Initial datestyle not set.");
const string ISOname = SetDatestyle(C, "ISO");
const string SQLname = SetDatestyle(C, "SQL");
PQXX_CHECK_NOT_EQUAL(ISOname, SQLname, "Same datestyle in SQL and ISO.");
RedoDatestyle(C, "SQL", SQLname);
ActivationTest(C, "ISO", ISOname);
ActivationTest(C, "SQL", SQLname);
// Prove that setting an unknown variable causes an error, as expected
quiet_errorhandler d(C);
PQXX_CHECK_THROWS(
C.set_variable("NONEXISTENT_VARIABLE_I_HOPE", "1"),
sql_error,
"Setting unknown variable failed to fail.");
}
} // namespace
PQXX_REGISTER_TEST_T(test_060, nontransaction)
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