sqlpp11/tests/sqlite3/usage/FloatingPoint.cpp

/*
 * Copyright (c) 2013 - 2016, Roland Bock
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <sqlpp11/sqlite3/database/connection.h>
#include <sqlpp11/sqlpp11.h>

#include "Tables.h"
#ifdef SQLPP_USE_SQLCIPHER
#include <sqlcipher/sqlite3.h>
#else
#include <sqlite3.h>
#endif
#include <iostream>
#include <limits>

namespace sql = sqlpp::sqlite3;

const auto fp = test::FpSample{};

template <typename T>
std::ostream& operator<<(std::ostream& os, const ::sqlpp::optional<T>& t) {
  if (not t)
    return os << "NULL";
  return os << t.value();
}

template <typename L, typename R>
auto require_equal(int line, const L& l, const R& r) -> void
{
  if (l != r)
  {
    std::cerr << line << ": ";
    std::cerr << l;
    std::cerr << " != ";
    std::cerr << r;
    throw std::runtime_error("Unexpected result");
  }
}

static auto require(int line, bool condition) -> void
{
  if (!condition)
  {
    std::cerr << line << " condition violated";
    throw std::runtime_error("Unexpected result");
  }
}

int FloatingPoint(int, char*[])
{
  sql::connection_config config;
  config.path_to_database = ":memory:";
  config.flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
  config.debug = true;

  sql::connection db(config);
  test::createFpSample(db);

  db.execute("INSERT into fp_sample (id, fp) values(NULL, 1.0)");
  db.execute("INSERT into fp_sample (id, fp) values(NULL, 'Inf')");
  db.execute("INSERT into fp_sample (id, fp) values(NULL, 'Nan')");
  db.execute("INSERT into fp_sample (id, fp) values(NULL, 'SomeString')");
  db(insert_into(fp).set(fp.fp = std::numeric_limits<double>::quiet_NaN()));
  db(insert_into(fp).set(fp.fp = std::numeric_limits<double>::infinity()));
  db(insert_into(fp).set(fp.fp = -std::numeric_limits<double>::infinity()));

  auto prepared_insert = db.prepare(insert_into(fp).set(fp.fp = parameter(fp.fp)));
  prepared_insert.params.fp = std::numeric_limits<double>::quiet_NaN();
  db(prepared_insert);
  prepared_insert.params.fp = std::numeric_limits<double>::infinity();
  db(prepared_insert);
  prepared_insert.params.fp = -std::numeric_limits<double>::infinity();
  db(prepared_insert);

  auto q = select(fp.fp).from(fp).unconditionally();
  auto rows = db(q);

  // raw string inserts
  require_equal(__LINE__, rows.front().fp, 1.0);
  rows.pop_front();
  require(__LINE__, std::isinf(rows.front().fp.value()));
  rows.pop_front();
  require(__LINE__, std::isnan(rows.front().fp.value()));
  rows.pop_front();
  require_equal(__LINE__, rows.front().fp, 0.0);
  rows.pop_front();

  // dsl inserts
  require(__LINE__, std::isnan(rows.front().fp.value()));
  rows.pop_front();
  require(__LINE__, std::isinf(rows.front().fp.value()));
  require(__LINE__, rows.front().fp.value() > std::numeric_limits<double>::max());
  rows.pop_front();
  require(__LINE__, std::isinf(rows.front().fp.value()));
  require(__LINE__, rows.front().fp.value() < std::numeric_limits<double>::lowest());

  // prepared dsl inserts
  rows.pop_front();
  require(__LINE__, std::isnan(rows.front().fp.value()));
  rows.pop_front();
  require(__LINE__, std::isinf(rows.front().fp.value()));
  require(__LINE__, rows.front().fp.value() > std::numeric_limits<double>::max());
  rows.pop_front();
  require(__LINE__, std::isinf(rows.front().fp.value()));
  require(__LINE__, rows.front().fp.value() < std::numeric_limits<double>::lowest());

  return 0;
}