// file : common/query/one/driver.cxx // copyright : Copyright (c) 2009-2019 Code Synthesis Tools CC // license : GNU GPL v2; see accompanying LICENSE file // Test query one support. // // We assume that other tests in common/query/ exercise a variety of // different kinds of queries. Here we are concerned with what is // specific to query_one() and query_value(). // #include <memory> // std::auto_ptr #include <cassert> #include <iostream> #include <odb/database.hxx> #include <odb/transaction.hxx> #include <common/common.hxx> #include "test.hxx" #include "test-odb.hxx" using namespace std; using namespace odb::core; int main (int argc, char* argv[]) { try { auto_ptr<database> db (create_database (argc, argv)); odb::database_id db_id (db->id ()); transaction t (db->begin ()); // query_one() // { auto_ptr<object> o (db->query_one<object> ()); assert (o.get () == 0); } { object o (4); assert (!db->query_one<object> (o) && o.id_ == 4 && o.str_.empty ()); } /* { object o (db->query_value<object> ()); assert (false); } */ object o (1); o.str_ = "value 1"; db->persist (o); { auto_ptr<object> o (db->query_one<object> ()); assert (o.get () != 0 && o->str_ == "value 1"); } { object o; assert (db->query_one<object> (o) && o.str_ == "value 1"); } { object o (db->query_value<object> ()); assert (o.str_ == "value 1"); } // query_one(const char*) // const char* q1_c (db_id == odb::id_oracle ? "\"id\" = 1" : "id = 1"); const char* q0_c (db_id == odb::id_oracle ? "\"id\" = 2" : "id = 2"); { auto_ptr<object> o (db->query_one<object> (q1_c)); assert (o.get () != 0 && o->str_ == "value 1"); } { auto_ptr<object> o (db->query_one<object> (q0_c)); assert (o.get () == 0); } { object o; assert (db->query_one<object> (q1_c, o) && o.str_ == "value 1"); } { object o (4); assert (!db->query_one<object> (q0_c, o) && o.id_ == 4 && o.str_.empty ()); } { object o (db->query_value<object> (q1_c)); assert (o.str_ == "value 1"); } // query_one(std::string) // string q1_s (q1_c); string q0_s (q0_c); { auto_ptr<object> o (db->query_one<object> (q1_s)); assert (o.get () != 0 && o->str_ == "value 1"); } { auto_ptr<object> o (db->query_one<object> (q0_s)); assert (o.get () == 0); } { object o; assert (db->query_one<object> (q1_s, o) && o.str_ == "value 1"); } { object o (4); assert (!db->query_one<object> (q0_s, o) && o.id_ == 4 && o.str_.empty ()); } { object o (db->query_value<object> (q1_s)); assert (o.str_ == "value 1"); } // query_one(odb::query) // typedef odb::query<object> query; query q1 (query::id == 1); query q0 (query::id == 2); { auto_ptr<object> o (db->query_one<object> (q1)); assert (o.get () != 0 && o->str_ == "value 1"); } { auto_ptr<object> o (db->query_one<object> (q0)); assert (o.get () == 0); } { object o; assert (db->query_one<object> (q1, o) && o.str_ == "value 1"); } { object o (4); assert (!db->query_one<object> (q0, o) && o.id_ == 4 && o.str_.empty ()); } { object o (db->query_value<object> (q1)); assert (o.str_ == "value 1"); } // Assertion on more than one element. // { object o (2); o.str_ = "value 2"; db->persist (o); } /* { auto_ptr<object> o (db->query_one<object> ()); assert (false); } */ /* { object o; db->query_one<object> (o); assert (false); } */ /* { object o (db->query_value<object> ()); assert (false); } */ } catch (const odb::exception& e) { cerr << e.what () << endl; return 1; } }