limit_order_id_type trigger_swan(share_type amount1, share_type amount2) {
set_expiration( db, trx );
// starting out with price 1:1
set_feed( 1, 1 );
// start out with 2:1 collateral
borrow(borrower(), swan().amount(amount1), back().amount(2*amount1));
borrow(borrower2(), swan().amount(amount2), back().amount(4*amount2));
FC_ASSERT( get_balance(borrower(), swan()) == amount1 );
FC_ASSERT( get_balance(borrower2(), swan()) == amount2 );
FC_ASSERT( get_balance(borrower() , back()) == init_balance - 2*amount1 );
FC_ASSERT( get_balance(borrower2(), back()) == init_balance - 4*amount2 );
set_feed( 1, 2 );
// this sell order is designed to trigger a black swan
limit_order_id_type oid = create_sell_order( borrower2(), swan().amount(1), back().amount(3) )->id;
FC_ASSERT( get_balance(borrower(), swan()) == amount1 );
FC_ASSERT( get_balance(borrower2(), swan()) == amount2 - 1 );
FC_ASSERT( get_balance(borrower() , back()) == init_balance - 2*amount1 );
FC_ASSERT( get_balance(borrower2(), back()) == init_balance - 2*amount2 );
BOOST_CHECK( swan().bitasset_data(db).has_settlement() );
return oid;
}
const limit_order_object*database_fixture::create_sell_order(account_id_type user, const asset& amount, const asset& recv)
{
auto r = create_sell_order(user(db), amount, recv);
verify_asset_supplies(db);
return r;
}
