First Commit

ext/libpqxx-7.7.3/test/test61.cxx

@@ -0,0 +1,61 @@
+#include <iostream>
+
+#include <pqxx/transaction>
+
+#include "test_helpers.hxx"
+
+using namespace pqxx;
+
+
+// Example program for libpqxx.  Test local variable functionality.
+namespace
+{
+std::string GetDatestyle(transaction_base &T)
+{
+  return T.conn().get_var("DATESTYLE");
+}
+
+
+std::string SetDatestyle(transaction_base &T, std::string style)
+{
+  T.conn().set_session_var("DATESTYLE", style);
+  std::string const fullname{GetDatestyle(T)};
+  PQXX_CHECK(
+    not std::empty(fullname),
+    "Setting datestyle to " + style + " makes it an empty string.");
+
+  return fullname;
+}
+
+
+void RedoDatestyle(
+  transaction_base &T, std::string const &style, std::string const &expected)
+{
+  PQXX_CHECK_EQUAL(SetDatestyle(T, style), expected, "Set wrong datestyle.");
+}
+
+
+void test_061()
+{
+  connection conn;
+  work tx{conn};
+
+  PQXX_CHECK(not std::empty(GetDatestyle(tx)), "Initial datestyle not set.");
+
+  std::string const ISOname{SetDatestyle(tx, "ISO")};
+  std::string const SQLname{SetDatestyle(tx, "SQL")};
+
+  PQXX_CHECK_NOT_EQUAL(ISOname, SQLname, "Same datestyle in SQL and ISO.");
+
+  RedoDatestyle(tx, "SQL", SQLname);
+
+  // Prove that setting an unknown variable causes an error, as expected
+  quiet_errorhandler d(tx.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_061);
+} // namespace