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62 lines
1.4 KiB
C++
62 lines
1.4 KiB
C++
#include <iostream>
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#include <pqxx/transaction>
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#include "test_helpers.hxx"
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using namespace pqxx;
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// Example program for libpqxx. Test local variable functionality.
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namespace
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{
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std::string GetDatestyle(transaction_base &T)
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{
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return T.conn().get_var("DATESTYLE");
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}
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std::string SetDatestyle(transaction_base &T, std::string style)
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{
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T.conn().set_session_var("DATESTYLE", style);
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std::string const fullname{GetDatestyle(T)};
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PQXX_CHECK(
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not std::empty(fullname),
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"Setting datestyle to " + style + " makes it an empty string.");
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return fullname;
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}
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void RedoDatestyle(
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transaction_base &T, std::string const &style, std::string const &expected)
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{
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PQXX_CHECK_EQUAL(SetDatestyle(T, style), expected, "Set wrong datestyle.");
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}
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void test_061()
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{
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connection conn;
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work tx{conn};
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PQXX_CHECK(not std::empty(GetDatestyle(tx)), "Initial datestyle not set.");
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std::string const ISOname{SetDatestyle(tx, "ISO")};
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std::string const SQLname{SetDatestyle(tx, "SQL")};
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PQXX_CHECK_NOT_EQUAL(ISOname, SQLname, "Same datestyle in SQL and ISO.");
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RedoDatestyle(tx, "SQL", SQLname);
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// Prove that setting an unknown variable causes an error, as expected
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quiet_errorhandler d(tx.conn());
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PQXX_CHECK_THROWS(
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conn.set_session_var("NONEXISTENT_VARIABLE_I_HOPE", 1), sql_error,
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"Setting unknown variable failed to fail.");
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}
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PQXX_REGISTER_TEST(test_061);
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} // namespace
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