neo-go/pkg/core/mem_pool_test.go
2019-12-14 00:05:45 +03:00

90 lines
2.8 KiB
Go

package core
import (
"testing"
"github.com/CityOfZion/neo-go/pkg/core/transaction"
"github.com/CityOfZion/neo-go/pkg/internal/random"
"github.com/CityOfZion/neo-go/pkg/util"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
type FeerStub struct {
lowPriority bool
sysFee util.Fixed8
netFee util.Fixed8
perByteFee util.Fixed8
}
func (fs *FeerStub) NetworkFee(*transaction.Transaction) util.Fixed8 {
return fs.netFee
}
func (fs *FeerStub) IsLowPriority(*transaction.Transaction) bool {
return fs.lowPriority
}
func (fs *FeerStub) FeePerByte(*transaction.Transaction) util.Fixed8 {
return fs.perByteFee
}
func (fs *FeerStub) SystemFee(*transaction.Transaction) util.Fixed8 {
return fs.sysFee
}
func testMemPoolAddRemoveWithFeer(t *testing.T, fs Feer) {
mp := NewMemPool(10)
tx := newMinerTX()
item := NewPoolItem(tx, fs)
_, ok := mp.TryGetValue(tx.Hash())
require.Equal(t, false, ok)
require.Equal(t, true, mp.TryAdd(tx.Hash(), item))
// Re-adding should fail.
require.Equal(t, false, mp.TryAdd(tx.Hash(), item))
tx2, ok := mp.TryGetValue(tx.Hash())
require.Equal(t, true, ok)
require.Equal(t, tx, tx2)
mp.Remove(tx.Hash())
_, ok = mp.TryGetValue(tx.Hash())
require.Equal(t, false, ok)
// Make sure nothing left in the mempool after removal.
assert.Equal(t, 0, len(mp.unsortedTxn))
assert.Equal(t, 0, len(mp.unverifiedTxn))
assert.Equal(t, 0, len(mp.sortedHighPrioTxn))
assert.Equal(t, 0, len(mp.sortedLowPrioTxn))
assert.Equal(t, 0, len(mp.unverifiedSortedHighPrioTxn))
assert.Equal(t, 0, len(mp.unverifiedSortedLowPrioTxn))
}
func TestMemPoolAddRemove(t *testing.T) {
var fs = &FeerStub{lowPriority: false}
t.Run("low priority", func(t *testing.T) { testMemPoolAddRemoveWithFeer(t, fs) })
fs.lowPriority = true
t.Run("high priority", func(t *testing.T) { testMemPoolAddRemoveWithFeer(t, fs) })
}
func TestMemPoolVerify(t *testing.T) {
mp := NewMemPool(10)
tx := newMinerTX()
inhash1 := random.Uint256()
tx.Inputs = append(tx.Inputs, transaction.Input{PrevHash: inhash1, PrevIndex: 0})
require.Equal(t, true, mp.Verify(tx))
item := NewPoolItem(tx, &FeerStub{})
require.Equal(t, true, mp.TryAdd(tx.Hash(), item))
tx2 := newMinerTX()
inhash2 := random.Uint256()
tx2.Inputs = append(tx2.Inputs, transaction.Input{PrevHash: inhash2, PrevIndex: 0})
require.Equal(t, true, mp.Verify(tx2))
item = NewPoolItem(tx2, &FeerStub{})
require.Equal(t, true, mp.TryAdd(tx2.Hash(), item))
tx3 := newMinerTX()
// Different index number, but the same PrevHash as in tx1.
tx3.Inputs = append(tx3.Inputs, transaction.Input{PrevHash: inhash1, PrevIndex: 1})
require.Equal(t, true, mp.Verify(tx3))
// The same input as in tx2.
tx3.Inputs = append(tx3.Inputs, transaction.Input{PrevHash: inhash2, PrevIndex: 0})
require.Equal(t, false, mp.Verify(tx3))
}