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Implement test for buyback accounts #538

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theoreticalbts 2016-02-11 04:59:35 -05:00
parent c33fe35e4e
commit 1a51d87329
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137
tests/tests/operation_tests2.cpp
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@ -1483,4 +1483,141 @@ BOOST_AUTO_TEST_CASE( top_n_special )
} FC_LOG_AND_RETHROW()
}
BOOST_AUTO_TEST_CASE( buyback )
{
ACTORS( (alice)(bob)(chloe)(dan)(izzy)(philbin) );
upgrade_to_lifetime_member(philbin_id);
generate_blocks( HARDFORK_538_TIME );
generate_blocks( HARDFORK_555_TIME );
try
{
{
//
// Izzy (issuer)
// Alice, Bob, Chloe, Dan (ABCD)
// Rex (recycler -- buyback account)
// Philbin (registrar)
//
asset_id_type nono_id = create_user_issued_asset( "NONO", izzy_id(db), 0 ).id;
asset_id_type buyme_id = create_user_issued_asset( "BUYME", izzy_id(db), 0 ).id;
// Create a buyback account
account_id_type rex_id;
{
buyback_account_options bbo;
bbo.asset_to_buy = buyme_id;
bbo.asset_to_buy_issuer = izzy_id;
bbo.markets.emplace( asset_id_type() );
account_create_operation create_op = make_account( "rex" );
create_op.registrar = philbin_id;
create_op.extensions.value.buyback_options = bbo;
create_op.owner = authority::null_authority();
create_op.active = authority::null_authority();
// Let's break it...
signed_transaction tx;
tx.operations.push_back( create_op );
set_expiration( db, tx );
tx.operations.back().get< account_create_operation >().extensions.value.buyback_options->asset_to_buy_issuer = alice_id;
sign( tx, alice_private_key );
sign( tx, philbin_private_key );
// Alice and Philbin signed, but asset issuer is invalid
GRAPHENE_CHECK_THROW( db.push_transaction(tx), account_create_buyback_incorrect_issuer );
tx.signatures.clear();
tx.operations.back().get< account_create_operation >().extensions.value.buyback_options->asset_to_buy_issuer = izzy_id;
sign( tx, philbin_private_key );
// Izzy didn't sign
GRAPHENE_CHECK_THROW( db.push_transaction(tx), tx_missing_active_auth );
sign( tx, izzy_private_key );
// OK
processed_transaction ptx = db.push_transaction( tx );
rex_id = ptx.operation_results.back().get< object_id_type >();
// Try to create another account rex2 which is bbo on same asset
tx.signatures.clear();
tx.operations.back().get< account_create_operation >().name = "rex2";
sign( tx, izzy_private_key );
sign( tx, philbin_private_key );
GRAPHENE_CHECK_THROW( db.push_transaction(tx), account_create_buyback_already_exists );
}
// issue some BUYME to Alice
// we need to set_expiration() before issue_uia() because the latter doens't call it #11
set_expiration( db, trx ); // #11
issue_uia( alice_id, asset( 1000, buyme_id ) );
issue_uia( alice_id, asset( 1000, nono_id ) );
// Alice wants to sell 100 BUYME for 1000 BTS, a middle price.
limit_order_id_type order_id_mid = create_sell_order( alice_id, asset( 100, buyme_id ), asset( 1000, asset_id_type() ) )->id;
generate_blocks(db.get_dynamic_global_properties().next_maintenance_time);
generate_block();
// no success because buyback has none for sale
BOOST_CHECK( order_id_mid(db).for_sale == 100 );
// but we can send some to buyback
fund( rex_id(db), asset( 100, asset_id_type() ) );
// no action until next maint
BOOST_CHECK( order_id_mid(db).for_sale == 100 );
generate_blocks(db.get_dynamic_global_properties().next_maintenance_time);
generate_block();
// partial fill, Alice now sells 90 BUYME for 900 BTS.
BOOST_CHECK( order_id_mid(db).for_sale == 90 );
// TODO check burn amount
// aagh more state in trx
set_expiration( db, trx ); // #11
// Selling 10 BUYME for 50 BTS, a low price.
limit_order_id_type order_id_low = create_sell_order( alice_id, asset( 10, buyme_id ), asset( 50, asset_id_type() ) )->id;
// Selling 10 BUYME for 150 BTS, a high price.
limit_order_id_type order_id_high = create_sell_order( alice_id, asset( 10, buyme_id ), asset( 150, asset_id_type() ) )->id;
fund( rex_id(db), asset( 250, asset_id_type() ) );
generate_blocks(db.get_dynamic_global_properties().next_maintenance_time);
generate_block();
BOOST_CHECK( db.find( order_id_low ) == nullptr );
BOOST_CHECK( db.find( order_id_mid ) != nullptr );
BOOST_CHECK( db.find( order_id_high ) != nullptr );
// 250 CORE in rex 90 BUYME in mid order 10 BUYME in low order
// 50 CORE goes to low order, buy 10 for 50 CORE
// 200 CORE goes to mid order, buy 20 for 200 CORE
// 70 BUYME in mid order 0 BUYME in low order
idump( (order_id_mid(db)) );
BOOST_CHECK( order_id_mid(db).for_sale == 70 );
BOOST_CHECK( order_id_high(db).for_sale == 10 );
BOOST_CHECK( get_balance( rex_id, asset_id_type() ) == 0 );
// clear out the books -- 700 left on mid order, 150 left on high order, so 2000 BTS should result in 1150 left over
fund( rex_id(db), asset( 2000, asset_id_type() ) );
generate_blocks(db.get_dynamic_global_properties().next_maintenance_time);
idump( (get_balance( rex_id, asset_id_type() )) );
BOOST_CHECK( get_balance( rex_id, asset_id_type() ) == 1150 );
GRAPHENE_CHECK_THROW( transfer( alice_id, rex_id, asset( 1, nono_id ) ), fc::exception );
// TODO: Check cancellation works for account which is BTS-restricted
}
} FC_LOG_AND_RETHROW()
}
BOOST_AUTO_TEST_SUITE_END()