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package bt_test
import (
"context"
"encoding/hex"
"errors"
"math"
"testing"
. "github.com/libsv/go-bk/wif"
"github.com/libsv/go-bt/v2"
"github.com/libsv/go-bt/v2/bscript"
"github.com/libsv/go-bt/v2/sighash"
"github.com/libsv/go-bt/v2/unlocker"
"github.com/stretchr/testify/assert"
)
func TestAddInputFromTx(t *testing.T) {
pubkey1, _ := hex.DecodeString("0280f642908697e8068c2e921bd998d6c2b90553064656f91b9cb9e98f443aac30")
pubkey2, _ := hex.DecodeString("02434dc3db4281c0895d7a126bb266e7648caca7d0e2e487bc41f954722d4ee397")
prvTx := bt.NewTx()
err := prvTx.AddP2PKHOutputFromPubKeyBytes(pubkey1, uint64(100000))
assert.NoError(t, err)
err = prvTx.AddP2PKHOutputFromPubKeyBytes(pubkey1, uint64(100000))
assert.NoError(t, err)
err = prvTx.AddP2PKHOutputFromPubKeyBytes(pubkey2, uint64(100000))
assert.NoError(t, err)
newTx := bt.NewTx()
err = newTx.AddP2PKHInputsFromTx(prvTx, pubkey1)
assert.NoError(t, err)
assert.Equal(t, newTx.InputCount(), 2) // only 2 utxos added
assert.Equal(t, newTx.TotalInputSatoshis(), uint64(200000))
}
func TestTx_InputCount(t *testing.T) {
t.Run("get input count", func(t *testing.T) {
tx := bt.NewTx()
assert.NotNil(t, tx)
err := tx.From(
"07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b",
0,
"76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac",
4000000,
)
assert.NoError(t, err)
assert.Equal(t, 1, tx.InputCount())
})
}
func TestTx_From(t *testing.T) {
t.Run("invalid locking script (hex decode failed)", func(t *testing.T) {
tx := bt.NewTx()
assert.NotNil(t, tx)
err := tx.From(
"07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b",
0,
"0",
4000000,
)
assert.Error(t, err)
err = tx.From(
"07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b",
0,
"76a914af2590a45ae4016",
4000000,
)
assert.Error(t, err)
})
t.Run("valid script and tx", func(t *testing.T) {
tx := bt.NewTx()
assert.NotNil(t, tx)
err := tx.From(
"07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b",
0,
"76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac",
4000000,
)
assert.NoError(t, err)
inputs := tx.Inputs
assert.Equal(t, 1, len(inputs))
assert.Equal(t, "07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b", hex.EncodeToString(inputs[0].PreviousTxID()))
assert.Equal(t, uint32(0), inputs[0].PreviousTxOutIndex)
assert.Equal(t, uint64(4000000), inputs[0].PreviousTxSatoshis)
assert.Equal(t, bt.DefaultSequenceNumber, inputs[0].SequenceNumber)
assert.Equal(t, "76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac", inputs[0].PreviousTxScript.String())
})
}
func TestTx_FromUTXOs(t *testing.T) {
t.Parallel()
t.Run("one utxo", func(t *testing.T) {
tx := bt.NewTx()
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
txID, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
assert.NoError(t, tx.FromUTXOs(&bt.UTXO{
TxID: txID,
LockingScript: script,
Vout: 0,
Satoshis: 1000,
}))
input := tx.Inputs[0]
assert.Equal(t, len(tx.Inputs), 1)
assert.Equal(t, "07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b", input.PreviousTxIDStr())
assert.Equal(t, uint32(0), input.PreviousTxOutIndex)
assert.Equal(t, uint64(1000), input.PreviousTxSatoshis)
assert.Equal(t, "76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac", input.PreviousTxScript.String())
})
t.Run("multiple utxos", func(t *testing.T) {
tx := bt.NewTx()
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
txID, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script2, err := bscript.NewFromHexString("76a914eb0bd5edba389198e73f8efabddfc61666969ff788ac")
assert.NoError(t, err)
txID2, err := hex.DecodeString("3c8edde27cb9a9132c22038dac4391496be9db16fd21351565cc1006966fdad5")
assert.NoError(t, err)
assert.NoError(t, tx.FromUTXOs(&bt.UTXO{
TxID: txID,
LockingScript: script,
Vout: 0,
Satoshis: 1000,
}, &bt.UTXO{
TxID: txID2,
LockingScript: script2,
Vout: 1,
Satoshis: 2000,
}))
assert.Equal(t, len(tx.Inputs), 2)
input := tx.Inputs[0]
assert.Equal(t, "07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b", input.PreviousTxIDStr())
assert.Equal(t, uint32(0), input.PreviousTxOutIndex)
assert.Equal(t, uint64(1000), input.PreviousTxSatoshis)
assert.Equal(t, "76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac", input.PreviousTxScript.String())
input = tx.Inputs[1]
assert.Equal(t, "3c8edde27cb9a9132c22038dac4391496be9db16fd21351565cc1006966fdad5", input.PreviousTxIDStr())
assert.Equal(t, uint32(1), input.PreviousTxOutIndex)
assert.Equal(t, uint64(2000), input.PreviousTxSatoshis)
assert.Equal(t, "76a914eb0bd5edba389198e73f8efabddfc61666969ff788ac", input.PreviousTxScript.String())
})
}
func TestTx_Fund(t *testing.T) {
t.Parallel()
tests := map[string]struct {
tx *bt.Tx
utxos []*bt.UTXO
utxoGetterFuncOverrider func([]*bt.UTXO) bt.UTXOGetterFunc
expTotalInputs int
expErr error
}{
"tx with exact inputs and surplus inputs is covered": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 1500))
return tx
}(),
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}}
}(),
expTotalInputs: 2,
},
"tx with extra inputs and surplus inputs is covered with all utxos": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 1500))
return tx
}(),
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}}
}(),
expTotalInputs: 3,
},
"tx with extra inputs and surplus inputs that returns correct amount is covered with minimum needed utxos": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 1500))
return tx
}(),
utxoGetterFuncOverrider: func(utxos []*bt.UTXO) bt.UTXOGetterFunc {
return func(ctx context.Context, satoshis uint64) ([]*bt.UTXO, error) {
return utxos[:2], nil
}
},
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}}
}(),
expTotalInputs: 2,
},
"tx with exact input satshis is covered": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 1500))
return tx
}(),
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}}
}(),
expTotalInputs: 2,
},
"tx with large amount of satoshis is covered with all utxos": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 5000))
return tx
}(),
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 500, 0xffffff, nil,
}, {
txid, 0, script, 670, 0xffffff, nil,
}, {
txid, 0, script, 700, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 650, 0xffffff, nil,
}}
}(),
expTotalInputs: 8,
},
"tx with large amount of satoshis is covered with needed utxos": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 5000))
return tx
}(),
utxoGetterFuncOverrider: func(utxos []*bt.UTXO) bt.UTXOGetterFunc {
utxosCopy := make([]*bt.UTXO, len(utxos))
copy(utxosCopy, utxos)
return func(ctx context.Context, sat uint64) ([]*bt.UTXO, error) {
defer func() { utxosCopy = utxosCopy[1:] }()
return utxosCopy[:1], nil
}
},
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 500, 0xffffff, nil,
}, {
txid, 0, script, 670, 0xffffff, nil,
}, {
txid, 0, script, 700, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 650, 0xffffff, nil,
}}
}(),
expTotalInputs: 7,
},
"getter with no utxos error": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 1500))
return tx
}(),
utxos: []*bt.UTXO{},
expErr: bt.ErrInsufficientFunds,
},
"getter with insufficient utxos errors": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 25400))
return tx
}(),
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 500, 0xffffff, nil,
}, {
txid, 0, script, 670, 0xffffff, nil,
}, {
txid, 0, script, 700, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 650, 0xffffff, nil,
}}
}(),
expErr: bt.ErrInsufficientFunds,
},
"error is returned to the user": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 100))
return tx
}(),
utxoGetterFuncOverrider: func([]*bt.UTXO) bt.UTXOGetterFunc {
return func(context.Context, uint64) ([]*bt.UTXO, error) {
return nil, errors.New("custom error")
}
},
expErr: errors.New("custom error"),
},
"tx with large amount of satoshis is covered, with multiple iterations": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 5000))
return tx
}(),
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 500, 0xffffff, nil,
}, {
txid, 0, script, 670, 0xffffff, nil,
}, {
txid, 0, script, 700, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 1000, 0xffffff, nil,
}, {
txid, 0, script, 650, 0xffffff, nil,
}}
}(),
utxoGetterFuncOverrider: func(utxos []*bt.UTXO) bt.UTXOGetterFunc {
idx := 0
return func(context.Context, uint64) ([]*bt.UTXO, error) {
defer func() { idx++ }()
return utxos[idx : idx+1], nil
}
},
expTotalInputs: 7,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
iptFn := func() bt.UTXOGetterFunc {
idx := 0
return func(ctx context.Context, deficit uint64) ([]*bt.UTXO, error) {
if idx == len(test.utxos) {
return nil, bt.ErrNoUTXO
}
defer func() { idx += len(test.utxos) }()
return test.utxos, nil
}
}()
if test.utxoGetterFuncOverrider != nil {
iptFn = test.utxoGetterFuncOverrider(test.utxos)
}
err := test.tx.Fund(context.Background(), FQPoint5SatPerByte, iptFn)
if test.expErr != nil {
assert.Error(t, err)
assert.EqualError(t, err, test.expErr.Error())
return
}
assert.NoError(t, err)
assert.Equal(t, test.expTotalInputs, test.tx.InputCount())
})
}
}
func TestTx_Fund_Deficit(t *testing.T) {
t.Parallel()
tests := map[string]struct {
utxos []*bt.UTXO
expDeficits []uint64
iteration int
tx *bt.Tx
}{
"1 output worth 5000, 3 utxos worth 6000": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 5000))
return tx
}(),
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}}
}(),
iteration: 1,
expDeficits: []uint64{5022, 3096, 1170},
},
"1 output worth 5000, 3 utxos worth 6000, iterations of 2": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 5000))
return tx
}(),
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}}
}(),
iteration: 2,
expDeficits: []uint64{5022, 1170},
},
"5 outputs worth 35000, 12 utxos worth 37000": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 5000))
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 10000))
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 7000))
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 3000))
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 10000))
return tx
}(),
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 4000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 6000, 0xffffff, nil,
}, {
txid, 0, script, 4000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 8000, 0xffffff, nil,
}, {
txid, 0, script, 3000, 0xffffff, nil,
}}
}(),
iteration: 1,
expDeficits: []uint64{35090, 33164, 31238, 29312, 27386, 23460, 21534, 15608, 11682, 9756, 1830},
},
"5 outputs worth 35000, 12 utxos worth 37000, iteration of 3": {
tx: func() *bt.Tx {
tx := bt.NewTx()
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 5000))
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 10000))
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 7000))
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 3000))
assert.NoError(t, tx.AddP2PKHOutputFromAddress("mtestD3vRB7AoYWK2n6kLdZmAMLbLhDsLr", 10000))
return tx
}(),
utxos: func() []*bt.UTXO {
txid, err := hex.DecodeString("07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b")
assert.NoError(t, err)
script, err := bscript.NewFromHexString("76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac")
assert.NoError(t, err)
return []*bt.UTXO{{
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 4000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 6000, 0xffffff, nil,
}, {
txid, 0, script, 4000, 0xffffff, nil,
}, {
txid, 0, script, 2000, 0xffffff, nil,
}, {
txid, 0, script, 8000, 0xffffff, nil,
}, {
txid, 0, script, 3000, 0xffffff, nil,
}}
}(),
iteration: 3,
expDeficits: []uint64{35090, 29312, 21534, 9756},
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
deficits := make([]uint64, 0)
test.tx.Fund(context.Background(), FQPoint5SatPerByte, func(ctx context.Context, deficit uint64) ([]*bt.UTXO, error) {
if len(test.utxos) == 0 {
return nil, bt.ErrNoUTXO
}
step := int(math.Min(float64(test.iteration), float64(len(test.utxos))))
defer func() {
test.utxos = test.utxos[step:]
}()
deficits = append(deficits, deficit)
return test.utxos[:step], nil
})
assert.Equal(t, test.expDeficits, deficits)
})
}
}
func TestTx_FillInput(t *testing.T) {
t.Parallel()
tests := map[string]struct {
inputIdx uint32
shf sighash.Flag
unlocker bt.Unlocker
expHex string
expErr error
}{
"standard unlock": {
inputIdx: 0,
shf: sighash.AllForkID,
unlocker: func() bt.Unlocker {
var wif *WIF
wif, err := DecodeWIF("L3MhnEn1pLWcggeYLk9jdkvA2wUK1iWwwrGkBbgQRqv6HPCdRxuw")
assert.NoError(t, err)
return &unlocker.Simple{PrivateKey: wif.PrivKey}
}(),
expHex: "01000000010b94a1ef0fb352aa2adc54207ce47ba55d5a1c1609afda58fe9520e472299107000000006a473044022049ee0c0f26c00e6a6b3af5990fc8296c66eab3e3e42ab075069b89b1be6fefec02206079e49dd8c9e1117ef06fbe99714d822620b1f0f5d19f32a1128f5d29b7c3c4412102c8803fdd437d902f08e3c2344cb33065c99d7c99982018ff9f7219c3dd352ff0ffffffff01a0083d00000000001976a914af2590a45ae401651fdbdf59a76ad43d1862534088ac00000000",
},
"sighash all is used as default": {
inputIdx: 0,
unlocker: func() bt.Unlocker {
var wif *WIF
wif, err := DecodeWIF("L3MhnEn1pLWcggeYLk9jdkvA2wUK1iWwwrGkBbgQRqv6HPCdRxuw")
assert.NoError(t, err)
return &unlocker.Simple{PrivateKey: wif.PrivKey}
}(),
expHex: "01000000010b94a1ef0fb352aa2adc54207ce47ba55d5a1c1609afda58fe9520e472299107000000006a473044022049ee0c0f26c00e6a6b3af5990fc8296c66eab3e3e42ab075069b89b1be6fefec02206079e49dd8c9e1117ef06fbe99714d822620b1f0f5d19f32a1128f5d29b7c3c4412102c8803fdd437d902f08e3c2344cb33065c99d7c99982018ff9f7219c3dd352ff0ffffffff01a0083d00000000001976a914af2590a45ae401651fdbdf59a76ad43d1862534088ac00000000",
},
"no unlocker errors": {
inputIdx: 0,
shf: sighash.AllForkID,
expErr: bt.ErrNoUnlocker,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
tx := bt.NewTx()
assert.NoError(t, tx.From(
"07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b",
0,
"76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac",
4000000,
))
assert.NoError(t, tx.ChangeToAddress("mwV3YgnowbJJB3LcyCuqiKpdivvNNFiK7M", FQPoint5SatPerByte))
err := tx.FillInput(context.Background(), test.unlocker, bt.UnlockerParams{
InputIdx: test.inputIdx,
SigHashFlags: test.shf,
})
if test.expErr != nil {
assert.Error(t, err)
assert.EqualError(t, err, test.expErr.Error())
} else {
assert.NoError(t, err)
assert.Equal(t, test.expHex, tx.String())
}
})
}
}
func TestTx_FillAllInputs(t *testing.T) {
t.Parallel()
t.Run("valid tx (basic)", func(t *testing.T) {
tx := bt.NewTx()
assert.NotNil(t, tx)
err := tx.From(
"07912972e42095fe58daaf09161c5a5da57be47c2054dc2aaa52b30fefa1940b",
0,
"76a914af2590a45ae401651fdbdf59a76ad43d1862534088ac",
4000000)
assert.NoError(t, err)
err = tx.ChangeToAddress("mwV3YgnowbJJB3LcyCuqiKpdivvNNFiK7M", FQPoint5SatPerByte)
assert.NoError(t, err)
var wif *WIF
wif, err = DecodeWIF("L3MhnEn1pLWcggeYLk9jdkvA2wUK1iWwwrGkBbgQRqv6HPCdRxuw")
assert.NoError(t, err)
assert.NotNil(t, wif)
rawTxBefore := tx.String()
assert.NoError(t, tx.FillAllInputs(context.Background(), &unlocker.Getter{PrivateKey: wif.PrivKey}))
assert.NotEqual(t, rawTxBefore, tx.String())
})
t.Run("no input or output", func(t *testing.T) {
tx := bt.NewTx()
assert.NotNil(t, tx)
rawTxBefore := tx.String()
assert.NoError(t, tx.FillAllInputs(context.Background(), &unlocker.Getter{PrivateKey: nil}))
assert.Equal(t, rawTxBefore, tx.String())
})
}