sqlgen/tests/postgres/test_insert_and_read_two_tables.cpp

#ifndef SQLGEN_BUILD_DRY_TESTS_ONLY

#include <gtest/gtest.h>

#include <rfl.hpp>
#include <rfl/json.hpp>
#include <sqlgen.hpp>
#include <sqlgen/postgres.hpp>
#include <vector>

namespace test_insert_and_read_two_tables {

struct Person {
  sqlgen::PrimaryKey<uint32_t> id;
  std::string first_name;
  std::string last_name;
  int age;
};

struct Children {
  uint32_t id_parent;
  sqlgen::PrimaryKey<uint32_t> id_child;
};

TEST(postgres, test_insert_and_read_two_tables) {
  const auto people1 = std::vector<Person>(
      {Person{
           .id = 0, .first_name = "Homer", .last_name = "Simpson", .age = 45},
       Person{.id = 1, .first_name = "Bart", .last_name = "Simpson", .age = 10},
       Person{.id = 2, .first_name = "Lisa", .last_name = "Simpson", .age = 8},
       Person{
           .id = 3, .first_name = "Maggie", .last_name = "Simpson", .age = 0}});

  const auto children =
      std::vector<Children>({Children{.id_parent = 0, .id_child = 1},
                             Children{.id_parent = 0, .id_child = 2},
                             Children{.id_parent = 0, .id_child = 3}});

  const auto credentials = sqlgen::postgres::Credentials{.user = "postgres",
                                                         .password = "password",
                                                         .host = "localhost",
                                                         .dbname = "postgres"};

  using namespace sqlgen;
  using namespace sqlgen::literals;

  const auto people2 = sqlgen::postgres::connect(credentials)
                           .and_then(drop<Person> | if_exists)
                           .and_then(drop<Children> | if_exists)
                           .and_then(begin_transaction)
                           .and_then(create_table<Person> | if_not_exists)
                           .and_then(create_table<Children> | if_not_exists)
                           .and_then(insert(std::ref(people1)))
                           .and_then(insert(std::ref(children)))
                           .and_then(commit)
                           .and_then(sqlgen::read<std::vector<Person>>)
                           .value();

  const auto json1 = rfl::json::write(people1);
  const auto json2 = rfl::json::write(people2);

  EXPECT_EQ(json1, json2);
}

}  // namespace test_insert_and_read_two_tables

#endif