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f ref test

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This commit is contained in:
Johan T. Halseth 2024-04-03 10:03:41 +02:00
parent 6d7c4a1288
commit 4ffc4019ba
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1 changed files with 20 additions and 9 deletions
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29
txscript/reference_test.go
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@ -63,16 +63,19 @@ func parseHex(tok string) ([]byte, error) {
var testPrivKey, _ = btcec.NewPrivateKey()
// Tags that are used to know how to parse the various elements of the
// reference test json.
const (
tagScript = "#SCRIPT#"
tagControlblock = "#CONTROLBLOCK#"
tagTaprootOutput = "#TAPROOTOUTPUT#"
)
// parseWitnessStack parses a json array of witness items encoded as hex into a
// slice of witness elements.
func parseWitnessStack(elements []interface{}) ([][]byte,
*IndexedTapScriptTree, error) {
const (
autogenScript = "<AUTOGEN:SERIALIZED_SCRIPT>"
autogenControlblock = "<AUTOGEN:CONTROLBLOCK>"
)
var (
witness = make([][]byte, len(elements))
tree *IndexedTapScriptTree
@ -81,8 +84,11 @@ func parseWitnessStack(elements []interface{}) ([][]byte,
for i, e := range elements {
s := e.(string)
switch {
case strings.HasPrefix(s, autogenScript):
scriptStr := strings.TrimPrefix(s, autogenScript)
// In case we encounter a script tag, we'll intepret the
// element as a script.
case strings.HasPrefix(s, tagScript):
scriptStr := strings.TrimPrefix(s, tagScript)
script, err := parseShortForm(scriptStr, nil)
if err != nil {
return nil, nil, err
@ -91,7 +97,8 @@ func parseWitnessStack(elements []interface{}) ([][]byte,
pkScript = script
witness[i] = script
case strings.HasPrefix(s, autogenControlblock):
// We will create a control block from the current tap script.
case strings.HasPrefix(s, tagControlblock):
if len(pkScript) == 0 {
return nil, nil, fmt.Errorf("tap script not set")
}
@ -191,7 +198,11 @@ func parseShortForm(script string, tree *IndexedTapScriptTree) ([]byte, error) {
builder.AddFullData([]byte(tok[1 : len(tok)-1]))
} else if opcode, ok := shortFormOps[tok]; ok {
builder.AddOp(opcode)
} else if tok == "<AUTOGEN:TAPROOTOUTPUT>" {
} else if tok == tagTaprootOutput {
// Use the current tap tree to create a taproot output.
if tree == nil {
return nil, fmt.Errorf("no taptree set")
}
inputKey := testPrivKey.PubKey()
tapScriptRootHash := tree.RootNode.TapHash()
tapKey := ComputeTaprootOutputKey(