Function TestTransactionPendingLimiting

core/tx_pool_test.go:920–956

Tests that even if the transaction count belonging to a single account goes above some threshold, as long as the transactions are executable, they are accepted.

(t *testing.T)

// above some threshold, as long as the transactions are executable, they are
// accepted.
func TestTransactionPendingLimiting(t *testing.T) {
	t.Parallel()

	// Create a test account and fund it
	pool, key := setupTxPool()
	defer pool.Stop()

	account, _ := deriveSender(transaction(0, 0, key))
	pool.currentState.AddBalance(account, big.NewInt(1000000))

	// Keep track of transaction events to ensure all executables get announced
	events := make(chan NewTxsEvent, testTxPoolConfig.AccountQueue+5)
	sub := pool.txFeed.Subscribe(events)
	defer sub.Unsubscribe()

	// Keep queuing up transactions and make sure all above a limit are dropped
	for i := uint64(0); i < testTxPoolConfig.AccountQueue+5; i++ {
		if err := pool.AddRemote(transaction(i, 100000, key)); err != nil {
			t.Fatalf("tx %d: failed to add transaction: %v", i, err)
		}
		if pool.pending[account].Len() != int(i)+1 {
			t.Errorf("tx %d: pending pool size mismatch: have %d, want %d", i, pool.pending[account].Len(), i+1)
		}
		if len(pool.queue) != 0 {
			t.Errorf("tx %d: queue size mismatch: have %d, want %d", i, pool.queue[account].Len(), 0)
		}
	}
	if pool.all.Count() != int(testTxPoolConfig.AccountQueue+5) {
		t.Errorf("total transaction mismatch: have %d, want %d", pool.all.Count(), testTxPoolConfig.AccountQueue+5)
	}
	if err := validateEvents(events, int(testTxPoolConfig.AccountQueue+5)); err != nil {
		t.Fatalf("event firing failed: %v", err)
	}
	if err := validateTxPoolInternals(pool); err != nil {
		t.Fatalf("pool internal state corrupted: %v", err)
	}
}

// Tests that the transaction limits are enforced the same way irrelevant whether
// the transactions are added one by one or in batches.