forked from cerc-io/plugeth
core: Fix flaw where underpriced locals were removed (#15081)
* core: Fix flaw where underpriced locals were removed * core: minor code cleanups for tx pool tests
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23b51a68cb
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@ -435,6 +435,7 @@ func (l *txPricedList) Cap(threshold *big.Int, local *accountSet) types.Transact
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}
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// Stop the discards if we've reached the threshold
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if tx.GasPrice().Cmp(threshold) >= 0 {
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save = append(save, tx)
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break
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}
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// Non stale transaction found, discard unless local
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@ -976,7 +976,7 @@ func TestTransactionPendingGlobalLimiting(t *testing.T) {
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}
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}
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// Tests that if transactions start being capped, transasctions are also removed from 'all'
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// Tests that if transactions start being capped, transactions are also removed from 'all'
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func TestTransactionCapClearsFromAll(t *testing.T) {
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// Create the pool to test the limit enforcement with
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db, _ := ethdb.NewMemDatabase()
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@ -1141,6 +1141,66 @@ func TestTransactionPoolRepricing(t *testing.T) {
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}
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}
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// Tests that setting the transaction pool gas price to a higher value does not
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// remove local transactions.
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func TestTransactionPoolRepricingKeepsLocals(t *testing.T) {
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// Create the pool to test the pricing enforcement with
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db, _ := ethdb.NewMemDatabase()
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statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
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blockchain := &testBlockChain{statedb, big.NewInt(1000000), new(event.Feed), new(event.Feed)}
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pool := NewTxPool(testTxPoolConfig, params.TestChainConfig, blockchain)
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defer pool.Stop()
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// Create a number of test accounts and fund them
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state, _ := pool.blockChain.State()
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keys := make([]*ecdsa.PrivateKey, 3)
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for i := 0; i < len(keys); i++ {
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keys[i], _ = crypto.GenerateKey()
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state.AddBalance(crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000*1000000))
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}
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// Create transaction (both pending and queued) with a linearly growing gasprice
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for i := uint64(0); i < 500; i++ {
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// Add pending
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p_tx := pricedTransaction(i, big.NewInt(100000), big.NewInt(int64(i)), keys[2])
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if err := pool.AddLocal(p_tx); err != nil {
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t.Fatal(err)
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}
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// Add queued
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q_tx := pricedTransaction(i+501, big.NewInt(100000), big.NewInt(int64(i)), keys[2])
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if err := pool.AddLocal(q_tx); err != nil {
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t.Fatal(err)
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}
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}
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pending, queued := pool.Stats()
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expPending, expQueued := 500, 500
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validate := func() {
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pending, queued = pool.Stats()
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if pending != expPending {
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t.Fatalf("pending transactions mismatched: have %d, want %d", pending, expPending)
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}
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if queued != expQueued {
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t.Fatalf("queued transactions mismatched: have %d, want %d", queued, expQueued)
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}
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if err := validateTxPoolInternals(pool); err != nil {
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t.Fatalf("pool internal state corrupted: %v", err)
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}
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}
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validate()
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// Reprice the pool and check that nothing is dropped
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pool.SetGasPrice(big.NewInt(2))
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validate()
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pool.SetGasPrice(big.NewInt(2))
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pool.SetGasPrice(big.NewInt(4))
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pool.SetGasPrice(big.NewInt(8))
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pool.SetGasPrice(big.NewInt(100))
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validate()
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}
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// Tests that when the pool reaches its global transaction limit, underpriced
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// transactions are gradually shifted out for more expensive ones and any gapped
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// pending transactions are moved into te queue.
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