func TestNewBlockHeaderPanics(t *testing.T) {
ct := uint64(100)
head := coin.BlockHeader{Time: ct}
assert.Panics(t, func() {
coin.NewBlockHeader(head, coin.NewUnspentPool(), ct, 50, coin.BlockBody{})
})
assert.Panics(t, func() {
coin.NewBlockHeader(head, coin.NewUnspentPool(), ct-1, 50, coin.BlockBody{})
})
assert.Panics(t, func() {
coin.NewBlockHeader(head, coin.NewUnspentPool(), ct-ct, 50, coin.BlockBody{})
})
assert.NotPanics(t, func() {
coin.NewBlockHeader(head, coin.NewUnspentPool(), ct+1, 50, coin.BlockBody{})
})
}
func (fbc *fakeBlockchain) CreateGenesisBlock(genesisAddr cipher.Address, genesisCoins, timestamp uint64) coin.Block {
txn := coin.Transaction{}
txn.PushOutput(genesisAddr, genesisCoins, genesisCoins)
body := coin.BlockBody{coin.Transactions{txn}}
prevHash := cipher.SHA256{}
head := coin.BlockHeader{
Time: timestamp,
BodyHash: body.Hash(),
PrevHash: prevHash,
BkSeq: 0,
Version: 0,
Fee: 0,
UxHash: coin.NewUnspentPool().GetUxHash(),
}
b := coin.Block{
Head: head,
Body: body,
}
// b.Body.Transactions[0].UpdateHeader()
fbc.blocks = append(fbc.blocks, b)
ux := coin.UxOut{
Head: coin.UxHead{
Time: timestamp,
BkSeq: 0,
},
Body: coin.UxBody{
SrcTransaction: txn.InnerHash, //user inner hash
Address: genesisAddr,
Coins: genesisCoins,
Hours: genesisCoins, // Allocate 1 coin hour per coin
},
}
fbc.unspent.Add(ux)
return b
}
func TestNewBlock(t *testing.T) {
// TODO -- update this test for newBlock changes
prev := coin.Block{Head: coin.BlockHeader{Version: 0x02, Time: 100, BkSeq: 98}}
unsp := coin.NewUnspentPool()
unsp.XorHash = randSHA256()
txns := coin.Transactions{coin.Transaction{}}
// invalid txn fees panics
assert.Panics(t, func() { coin.NewBlock(prev, 133, unsp, txns, _badFeeCalc) })
// no txns panics
assert.Panics(t, func() {
coin.NewBlock(prev, 133, unsp, nil, _feeCalc)
})
assert.Panics(t, func() {
coin.NewBlock(prev, 133, unsp, coin.Transactions{}, _feeCalc)
})
// valid block is fine
fee := uint64(121)
currentTime := uint64(133)
b := coin.NewBlock(prev, currentTime, unsp, txns, _makeFeeCalc(fee))
assert.Equal(t, b.Body.Transactions, txns)
assert.Equal(t, b.Head.Fee, fee*uint64(len(txns)))
assert.Equal(t, b.Body, coin.BlockBody{txns})
assert.Equal(t, b.Head.PrevHash, prev.HashHeader())
assert.Equal(t, b.Head.Time, currentTime)
assert.Equal(t, b.Head.BkSeq, prev.Head.BkSeq+1)
assert.Equal(t, b.Head.UxHash,
unsp.GetUxHash())
}
func (self SerializedBlockchain) ToBlockchain() *coin.Blockchain {
bc := &coin.Blockchain{}
bc.Blocks = self.Blocks
pool := coin.NewUnspentPool()
pool.Rebuild(self.Unspents)
bc.Unspent = pool
return bc
}
func TestGetUxHash(t *testing.T) {
unsp := coin.NewUnspentPool()
xor := randSHA256()
unsp.XorHash = xor
//prev := randSHA256(t)
sh := unsp.GetUxHash()
assert.True(t, bytes.Equal(xor[:], sh[:]))
assert.NotEqual(t, sh, [4]byte{})
}
// NewBlockchain use the walker go throught the tree and update the head and unspent outputs.
func NewBlockchain(tree BlockTree, walker Walker) *Blockchain {
bc := &Blockchain{
tree: tree,
walker: walker,
unspent: coin.NewUnspentPool(),
}
bc.walkTree()
return bc
}
func createUnconfirmedTxns(t *testing.T, up *UnconfirmedTxnPool, n int) []UnconfirmedTxn {
uts := make([]UnconfirmedTxn, 4)
usp := coin.NewUnspentPool()
for i := 0; i < len(uts); i++ {
tx, _ := makeValidTxn()
ut := up.createUnconfirmedTxn(&usp, tx)
uts[i] = ut
up.Txns[ut.Hash()] = ut
}
assert.Equal(t, len(up.Txns), 4)
return uts
}
func TestSpendsForAddresses(t *testing.T) {
up := NewUnconfirmedTxnPool()
unspent := coin.NewUnspentPool()
addrs := make(map[cipher.Address]byte, 0)
n := 4
useAddrs := make([]cipher.Address, n)
for i, _ := range useAddrs {
useAddrs[i] = makeAddress()
}
useAddrs[1] = useAddrs[0]
for _, a := range useAddrs {
addrs[a] = byte(1)
}
// Make confirmed transactions to add to unspent pool
uxs := make(coin.UxArray, 0)
for i := 0; i < n; i++ {
txn := coin.Transaction{}
txn.PushInput(randSHA256())
txn.PushOutput(useAddrs[i], 10e6, 1000)
uxa := coin.CreateUnspents(coin.BlockHeader{}, txn)
for _, ux := range uxa {
unspent.Add(ux)
}
uxs = append(uxs, uxa...)
}
assert.Equal(t, len(uxs), 4)
// Make unconfirmed txns that spend those unspents
for i := 0; i < n; i++ {
txn := coin.Transaction{}
txn.PushInput(uxs[i].Hash())
txn.PushOutput(makeAddress(), 10e6, 1000)
ut := UnconfirmedTxn{
Txn: txn,
}
up.Txns[ut.Hash()] = ut
}
// Now look them up
assert.Equal(t, len(addrs), 3)
assert.Equal(t, len(up.Txns), 4)
auxs := up.SpendsForAddresses(&unspent, addrs)
assert.Equal(t, len(auxs), 3)
assert.Equal(t, len(auxs[useAddrs[0]]), 2)
assert.Equal(t, len(auxs[useAddrs[2]]), 1)
assert.Equal(t, len(auxs[useAddrs[3]]), 1)
assert.Equal(t, auxs[useAddrs[0]], coin.UxArray{uxs[0], uxs[1]})
assert.Equal(t, auxs[useAddrs[2]], coin.UxArray{uxs[2]})
assert.Equal(t, auxs[useAddrs[3]], coin.UxArray{uxs[3]})
}
func makeValidTxn() (coin.Transaction, error) {
w := wallet.NewWallet("test")
w.GenerateAddresses(2)
uncf := NewUnconfirmedTxnPool()
now := tNow()
a := makeAddress()
uxs := makeUxBalancesForAddresses([]wallet.Balance{
wallet.Balance{10e6, 150},
wallet.Balance{15e6, 150},
}, now, w.GetAddresses()[:2])
unsp := coin.NewUnspentPool()
addUxArrayToUnspentPool(&unsp, uxs)
amt := wallet.Balance{10 * 1e6, 0}
return CreateSpendingTransaction(w, uncf, &unsp, now, amt, a)
}
func makeNewBlock() coin.Block {
unsp := coin.NewUnspentPool()
body := coin.BlockBody{
Transactions: coin.Transactions{coin.Transaction{}},
}
prev := coin.Block{
Body: body,
Head: coin.BlockHeader{
Version: 0x02,
Time: 100,
BkSeq: 0,
Fee: 10,
PrevHash: cipher.SHA256{},
BodyHash: body.Hash(),
}}
return coin.NewBlock(prev, 100+20, unsp, coin.Transactions{coin.Transaction{}}, _feeCalc)
}
func TestNewBlockHeader(t *testing.T) {
// TODO -- update this test for newBlockHeader changes
b := makeNewBlock()
prev := b.Head
unsp := coin.NewUnspentPool()
unsp.XorHash = randSHA256()
fee := uint64(10)
bh := coin.NewBlockHeader(prev, unsp, prev.Time+22, fee, b.Body)
assert.Equal(t, bh.PrevHash, prev.Hash())
assert.NotEqual(t, bh.PrevHash, prev.PrevHash)
assert.Equal(t, bh.Time, uint64(prev.Time+22))
assert.Equal(t, bh.BkSeq, uint64(prev.BkSeq+1))
assert.Equal(t, bh.Fee, fee)
assert.Equal(t, bh.Version, prev.Version)
assert.Equal(t, bh.BodyHash, b.Body.Hash())
assert.Equal(t, bh.UxHash, unsp.GetUxHash())
}
func makeInvalidTxn() (coin.Transaction, error) {
w := wallet.NewWallet("test")
w.GenerateAddresses(2)
uncf := NewUnconfirmedTxnPool()
now := tNow()
a := makeAddress()
uxs := makeUxBalancesForAddresses([]wallet.Balance{}, now, w.GetAddresses()[:2])
unsp := coin.NewUnspentPool()
addUxArrayToUnspentPool(&unsp, uxs)
amt := wallet.Balance{25 * 1e6, 0}
txn, err := CreateSpendingTransaction(w, uncf, &unsp, now, amt, a)
if err != nil {
return txn, err
}
txn.Out[0].Address = cipher.Address{}
return txn, nil
}
func TestSerializedBlockchain(t *testing.T) {
defer cleanupVisor()
cleanupVisor()
bc := &coin.Blockchain{}
bc.Blocks = []coin.Block{}
for i := uint64(0); i < 10; i++ {
bc.Blocks = append(bc.Blocks, coin.Block{})
bc.Blocks[i].Head.BkSeq = i
}
assert.Equal(t, len(bc.Blocks), 10)
bc.Unspent = coin.NewUnspentPool()
for i := uint64(0); i < 10; i++ {
bc.Unspent.Add(makeUxOut(t))
}
assert.Equal(t, len(bc.Unspent.Pool), 10)
sbc := NewSerializedBlockchain(bc)
assert.Equal(t, sbc.Blocks, bc.Blocks)
assert.Equal(t, len(sbc.Unspents), len(bc.Unspent.Pool))
// Back to blockchain works
assert.Equal(t, bc, sbc.ToBlockchain())
// Saving and reloading works
assert.Nil(t, sbc.Save(testBlockchainFile))
assertFileExists(t, testBlockchainFile)
sbc2, err := LoadSerializedBlockchain(testBlockchainFile)
assert.Nil(t, err)
assert.Equal(t, sbc, sbc2)
assert.Equal(t, bc, sbc2.ToBlockchain())
bc2, err := LoadBlockchain(testBlockchainFile)
assert.Nil(t, err)
assert.Equal(t, bc, bc2)
}
func NewUnconfirmedTxnPool() *UnconfirmedTxnPool {
return &UnconfirmedTxnPool{
Txns: make(map[coin.SHA256]UnconfirmedTxn),
Unspent: coin.NewUnspentPool(),
}
}
func TestCreateSpendingTransaction(t *testing.T) {
// Setup
w := wallet.NewSimpleWallet()
for i := 0; i < 4; i++ {
w.CreateEntry()
}
uncf := NewUnconfirmedTxnPool()
now := tNow()
a := makeAddress()
// Failing createSpends
amt := wallet.Balance{0, 0}
unsp := coin.NewUnspentPool()
_, err := CreateSpendingTransaction(w, uncf, &unsp, now, amt, 0, 0, a)
assert.NotNil(t, err)
// Valid txn, fee, no change
uxs := makeUxBalancesForAddresses([]wallet.Balance{
wallet.Balance{10e6, 150},
wallet.Balance{15e6, 150},
}, now, w.GetAddresses()[:2])
unsp = coin.NewUnspentPool()
addUxArrayToUnspentPool(&unsp, uxs)
amt = wallet.Balance{25e6, 200}
tx, err := CreateSpendingTransaction(w, uncf, &unsp, now, amt, 100, 0, a)
assert.Nil(t, err)
assert.Equal(t, len(tx.Out), 1)
assert.Equal(t, tx.Out[0], coin.TransactionOutput{
Coins: 25e6,
Hours: 200,
Address: a,
})
assert.Equal(t, len(tx.In), 2)
assert.Equal(t, tx.In, []coin.SHA256{uxs[0].Hash(), uxs[1].Hash()})
assert.Nil(t, tx.Verify())
// Valid txn, change
uxs = makeUxBalancesForAddresses([]wallet.Balance{
wallet.Balance{10e6, 150},
wallet.Balance{15e6, 200},
wallet.Balance{1e6, 125},
}, now, w.GetAddresses()[:3])
unsp = coin.NewUnspentPool()
addUxArrayToUnspentPool(&unsp, uxs)
amt = wallet.Balance{25e6, 200}
tx, err = CreateSpendingTransaction(w, uncf, &unsp, now, amt, 100, 0, a)
assert.Nil(t, err)
assert.Equal(t, len(tx.Out), 2)
assert.Equal(t, tx.Out[0], coin.TransactionOutput{
Coins: 1e6,
Hours: (150 + 200 + 125) - (200 + 100),
Address: w.GetAddresses()[0],
})
assert.Equal(t, tx.Out[1], coin.TransactionOutput{
Coins: 25e6,
Hours: 200,
Address: a,
})
assert.Equal(t, len(tx.In), 3)
assert.Equal(t, tx.In, []coin.SHA256{
uxs[0].Hash(), uxs[1].Hash(), uxs[2].Hash(),
})
assert.Nil(t, tx.Verify())
// Valid txn, but wastes coin hours
uxs = makeUxBalancesForAddresses([]wallet.Balance{
wallet.Balance{10e6, 150},
wallet.Balance{15e6, 200},
}, now, w.GetAddresses()[:2])
unsp = coin.NewUnspentPool()
addUxArrayToUnspentPool(&unsp, uxs)
amt = wallet.Balance{25e6, 200}
_, err = CreateSpendingTransaction(w, uncf, &unsp, now, amt, 100, 0, a)
assertError(t, err, "Have enough coins, but not enough to send coin "+
"hours change back. Would spend 50 more hours than requested.")
// Would be valid, but unconfirmed subtraction causes it to not be
// First, make a txn to subtract
uxs = makeUxBalancesForAddresses([]wallet.Balance{
wallet.Balance{10e6, 150},
wallet.Balance{15e6, 150},
}, now, w.GetAddresses()[:2])
unsp = coin.NewUnspentPool()
addUxArrayToUnspentPool(&unsp, uxs)
amt = wallet.Balance{25e6, 200}
tx, err = CreateSpendingTransaction(w, uncf, &unsp, now, amt, 100, 0, a)
assert.Nil(t, err)
// Add it to the unconfirmed pool (bypass RecordTxn to avoid blockchain)
uncf.Txns[tx.Hash()] = uncf.createUnconfirmedTxn(&unsp, tx,
w.GetAddressSet())
// Make a spend that must not reuse previous addresses
_, err = CreateSpendingTransaction(w, uncf, &unsp, now, amt, 100, 0, a)
assertError(t, err, "Not enough coins")
}
func TestCreateSpendingTransaction(t *testing.T) {
// Setup
w := wallet.NewWallet("fortest.wlt")
w.GenerateAddresses(4)
uncf := NewUnconfirmedTxnPool()
now := tNow()
a := makeAddress()
// Failing createSpends
amt := wallet.Balance{0, 0}
unsp := coin.NewUnspentPool()
_, err := CreateSpendingTransaction(w, uncf, &unsp, now, amt, a)
assert.NotNil(t, err)
// Valid txn, fee, no change
uxs := makeUxBalancesForAddresses([]wallet.Balance{
wallet.Balance{10e6, 150},
wallet.Balance{15e6, 150},
}, now, w.GetAddresses()[:2])
unsp = coin.NewUnspentPool()
addUxArrayToUnspentPool(&unsp, uxs)
amt = wallet.Balance{25e6, 200}
tx, err := CreateSpendingTransaction(w, uncf, &unsp, now, amt, a)
assert.Nil(t, err)
assert.Equal(t, len(tx.Out), 1)
assert.Equal(t, tx.Out[0], coin.TransactionOutput{
Coins: 25e6,
Hours: 37,
Address: a,
})
assert.Equal(t, len(tx.In), 2)
assert.Equal(t, tx.In, []cipher.SHA256{uxs[0].Hash(), uxs[1].Hash()})
assert.Nil(t, tx.Verify())
// Valid txn, change
uxs = makeUxBalancesForAddresses([]wallet.Balance{
wallet.Balance{10e6, 150},
wallet.Balance{15e6, 200},
wallet.Balance{1e6, 125},
}, now, w.GetAddresses()[:3])
unsp = coin.NewUnspentPool()
addUxArrayToUnspentPool(&unsp, uxs)
amt = wallet.Balance{25e6, 200}
tx, err = CreateSpendingTransaction(w, uncf, &unsp, now, amt, a)
assert.Nil(t, err)
assert.Equal(t, len(tx.Out), 2)
assert.Equal(t, tx.Out[0], coin.TransactionOutput{
Coins: 1e6,
Hours: (150 + 200 + 125) / 8,
Address: w.GetAddresses()[0],
})
assert.Equal(t, tx.Out[1], coin.TransactionOutput{
Coins: 25e6,
Hours: (150 + 200 + 125) / 8,
Address: a,
})
assert.Equal(t, len(tx.In), 3)
assert.Equal(t, tx.In, []cipher.SHA256{
uxs[0].Hash(), uxs[1].Hash(), uxs[2].Hash(),
})
assert.Nil(t, tx.Verify())
// Would be valid, but unconfirmed subtraction causes it to not be
// First, make a txn to subtract
uxs = makeUxBalancesForAddresses([]wallet.Balance{
wallet.Balance{10e6, 150},
wallet.Balance{15e6, 150},
}, now, w.GetAddresses()[:2])
unsp = coin.NewUnspentPool()
addUxArrayToUnspentPool(&unsp, uxs)
amt = wallet.Balance{25e6, 200}
tx, err = CreateSpendingTransaction(w, uncf, &unsp, now, amt, a)
assert.Nil(t, err)
// Add it to the unconfirmed pool (bypass InjectTxn to avoid blockchain)
uncf.Txns[tx.Hash()] = uncf.createUnconfirmedTxn(&unsp, tx)
// Make a spend that must not reuse previous addresses
_, err = CreateSpendingTransaction(w, uncf, &unsp, now, amt, a)
assertError(t, err, "Not enough coins")
}
func newBlockchain() historydb.Blockchainer {
return &fakeBlockchain{
unspent: coin.NewUnspentPool(),
}
}
