BOOST_FIXTURE_TEST_CASE(wallet_coinsresult_test, BasicTestingSetup)

{

// Test case to verify CoinsResult object sanity.

CoinsResult available_coins;

{

std::unique_ptr<CWallet> dummyWallet = std::make_unique<CWallet>(m_node.chain.get(), "dummy", m_args, CreateMockWalletDatabase());

BOOST_CHECK_EQUAL(dummyWallet->LoadWallet(), DBErrors::LOAD_OK);

LOCK(dummyWallet->cs_wallet);

dummyWallet->SetWalletFlag(WALLET_FLAG_DESCRIPTORS);

dummyWallet->SetupDescriptorScriptPubKeyMans();

// Add some coins to 'available_coins'

for (int i=0; i<10; i++) {

add_coin(available_coins, *dummyWallet, 1 * COIN);

}

}

{

// First test case, check that 'CoinsResult::Erase' function works as expected.

// By trying to erase two elements from the 'available_coins' object.

std::unordered_set<COutPoint, SaltedOutpointHasher> outs_to_remove;

const auto& coins = available_coins.All();

for (int i = 0; i < 2; i++) {

outs_to_remove.emplace(coins[i].outpoint);

}

available_coins.Erase(outs_to_remove);

// Check that the elements were actually removed.

const auto& updated_coins = available_coins.All();

for (const auto& out: outs_to_remove) {

auto it = std::find_if(updated_coins.begin(), updated_coins.end(), [&out](const COutput &coin) {

return coin.outpoint == out;

});

BOOST_CHECK(it == updated_coins.end());

}

// And verify that no extra element were removed

BOOST_CHECK_EQUAL(available_coins.Size(), 8);

}

}