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path: root/core/transaction_pool_test.go
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package core

import (
    "crypto/ecdsa"
    "testing"

    "github.com/ethereum/go-ethereum/core/types"
    "github.com/ethereum/go-ethereum/crypto"
    "github.com/ethereum/go-ethereum/ethdb"
    "github.com/ethereum/go-ethereum/ethutil"
    "github.com/ethereum/go-ethereum/event"
    "github.com/ethereum/go-ethereum/state"
)

// State query interface
type stateQuery struct{ db ethutil.Database }

func SQ() stateQuery {
    db, _ := ethdb.NewMemDatabase()
    return stateQuery{db: db}
}

func (self stateQuery) GetAccount(addr []byte) *state.StateObject {
    return state.NewStateObject(addr, self.db)
}

func transaction() *types.Transaction {
    return types.NewTransactionMessage(make([]byte, 20), ethutil.Big0, ethutil.Big0, ethutil.Big0, nil)
}

func setup() (*TxPool, *ecdsa.PrivateKey) {
    var m event.TypeMux
    key, _ := crypto.GenerateKey()
    return NewTxPool(&m), key
}

func TestTxAdding(t *testing.T) {
    pool, key := setup()
    tx1 := transaction()
    tx1.SignECDSA(key)
    err := pool.Add(tx1)
    if err != nil {
        t.Error(err)
    }

    err = pool.Add(tx1)
    if err == nil {
        t.Error("added tx twice")
    }
}

func TestAddInvalidTx(t *testing.T) {
    pool, _ := setup()
    tx1 := transaction()
    err := pool.Add(tx1)
    if err == nil {
        t.Error("expected error")
    }
}

func TestRemoveSet(t *testing.T) {
    pool, _ := setup()
    tx1 := transaction()
    pool.addTx(tx1)
    pool.RemoveSet(types.Transactions{tx1})
    if pool.Size() > 0 {
        t.Error("expected pool size to be 0")
    }
}

func TestRemoveInvalid(t *testing.T) {
    pool, key := setup()
    tx1 := transaction()
    pool.addTx(tx1)
    pool.RemoveInvalid(SQ())
    if pool.Size() > 0 {
        t.Error("expected pool size to be 0")
    }

    tx1.SetNonce(1)
    tx1.SignECDSA(key)
    pool.addTx(tx1)
    pool.RemoveInvalid(SQ())
    if pool.Size() != 1 {
        t.Error("expected pool size to be 1, is", pool.Size())
    }
}