#define BOOST_TEST_DYN_LINK
//#define BOOST_TEST_MODULE balance
#include <boost/test/unit_test.hpp>

#include <system.hh>

#include "balance.h"

using namespace ledger;

struct balance_fixture {
  balance_fixture() {
  times_initialize();
  amount_t::initialize();

  // Cause the display precision for dollars to be initialized to 2.
  amount_t x1("$1.00");
  BOOST_CHECK(x1);

  amount_t::stream_fullstrings = true; // make reports from UnitTests accurate
  }

  ~balance_fixture()
  {
  amount_t::stream_fullstrings = false;
  amount_t::shutdown();
  times_shutdown();
  }
};

BOOST_FIXTURE_TEST_SUITE(balance, balance_fixture)

BOOST_AUTO_TEST_CASE(testConstructors)
{
  balance_t b0;
  balance_t b1(1.00);
  balance_t b2(123456UL);
  balance_t b3(12345L);

  BOOST_CHECK_EQUAL(balance_t(), b0);
  BOOST_CHECK_NE(balance_t("0"), b0);
  BOOST_CHECK_NE(balance_t("0.0"), b0);
  BOOST_CHECK_EQUAL(b2, 123456UL);
  BOOST_CHECK_EQUAL(b3, 12345L);

  BOOST_CHECK(b0.valid());
  BOOST_CHECK(b1.valid());
  BOOST_CHECK(b2.valid());
  BOOST_CHECK(b3.valid());

}

BOOST_AUTO_TEST_CASE(testAddition)
{
  amount_t a0;
  amount_t a1("$1");
  amount_t a2("2 EUR");
  amount_t a3("0.00 CAD");
  amount_t a4("$2");

  balance_t b0;
  balance_t b1(1.00);
  balance_t b2(2UL);
  balance_t b3(2L);
  balance_t b4;
  balance_t b5;

  b0 += b1;
  b2 += b3;
  b3 += a1;
  b3 += a2;
  b4 += b3;
  b5 += a1;
  b5 += a4;

  BOOST_CHECK_EQUAL(balance_t(1.00), b0);
  BOOST_CHECK_EQUAL(b3 += a3, b4);
  BOOST_CHECK_EQUAL(balance_t(4L), b2);
  BOOST_CHECK_EQUAL(balance_t() += amount_t("$3"), b5);

  BOOST_CHECK_THROW(b3 += a0, balance_error);

  BOOST_CHECK(b0.valid());
  BOOST_CHECK(b1.valid());
  BOOST_CHECK(b2.valid());
  BOOST_CHECK(b3.valid());
  BOOST_CHECK(b4.valid());

}

BOOST_AUTO_TEST_SUITE_END()