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oppushdata_test.go
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package bscript_test
import (
"encoding/hex"
"testing"
"github.com/libsv/go-bt/v2/bscript"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestDecodeParts(t *testing.T) {
t.Parallel()
t.Run("simple", func(t *testing.T) {
parts, err := bscript.DecodeStringParts("05000102030401FF02ABCD")
require.NoError(t, err)
assert.Len(t, parts, 3)
})
t.Run("simple and encode", func(t *testing.T) {
parts, err := bscript.DecodeStringParts("05000102030401FF02ABCD")
require.NoError(t, err)
assert.Len(t, parts, 3)
var p []byte
p, err = bscript.EncodeParts(parts)
require.NoError(t, err)
assert.Equal(t, "05000102030401ff02abcd", hex.EncodeToString(p))
})
t.Run("empty parts", func(t *testing.T) {
parts, err := bscript.DecodeStringParts("")
require.NoError(t, err)
assert.Empty(t, parts)
})
t.Run("complex parts", func(t *testing.T) {
s := "524c53ff0488b21e000000000000000000362f7a9030543db8751401c387d6a71e870f1895b3a62569d455e8ee5f5f5e5f03036624c6df96984db6b4e625b6707c017eb0e0d137cd13a0c989bfa77a4473fd000000004c53ff0488b21e0000000000000000008b20425398995f3c866ea6ce5c1828a516b007379cf97b136bffbdc86f75df14036454bad23b019eae34f10aff8b8d6d8deb18cb31354e5a169ee09d8a4560e8250000000052ae"
parts, err := bscript.DecodeStringParts(s)
require.NoError(t, err)
assert.Len(t, parts, 5)
})
t.Run("bad parts", func(t *testing.T) {
_, err := bscript.DecodeStringParts("05000000")
require.Error(t, err)
require.EqualError(t, err, "not enough data")
_, err = bscript.DecodeStringParts("4c05000000")
require.Error(t, err)
require.EqualError(t, err, "not enough data")
})
t.Run("decode using OP_PUSHDATA1", func(t *testing.T) {
data := "testing"
b := make([]byte, 0)
b = append(b, bscript.OpPUSHDATA1)
b = append(b, byte(len(data)))
b = append(b, []byte(data)...)
decoded, err := bscript.DecodeParts(b)
require.NoError(t, err)
assert.NotEmpty(t, decoded)
})
t.Run("invalid decode using OP_PUSHDATA1 - missing data payload", func(t *testing.T) {
b := make([]byte, 0)
b = append(b, bscript.OpPUSHDATA1)
decoded, err := bscript.DecodeParts(b)
require.Error(t, err)
assert.Empty(t, decoded)
})
t.Run("invalid decode using OP_PUSHDATA2 - payload too small", func(t *testing.T) {
data := "testing the code OP_PUSHDATA2"
b := make([]byte, 0)
b = append(b, bscript.OpPUSHDATA2)
b = append(b, byte(len(data)))
b = append(b, []byte(data)...)
decoded, err := bscript.DecodeParts(b)
require.Error(t, err)
assert.Empty(t, decoded)
})
t.Run("invalid decode using OP_PUSHDATA2 - missing data payload", func(t *testing.T) {
b := make([]byte, 0)
b = append(b, bscript.OpPUSHDATA2)
decoded, err := bscript.DecodeParts(b)
require.Error(t, err)
assert.Empty(t, decoded)
})
t.Run("invalid decode using OP_PUSHDATA2 - overflow", func(t *testing.T) {
b := make([]byte, 0)
b = append(b, bscript.OpPUSHDATA2)
b = append(b, 0xff)
b = append(b, 0xff)
bigScript := make([]byte, 0xffff)
b = append(b, bigScript...)
t.Logf("Script len is %d", len(b))
defer func() {
if r := recover(); r != nil {
t.Errorf("Panic detected: %v", r)
}
}()
_, err := bscript.DecodeParts(b)
if err != nil {
t.Error(err)
}
})
t.Run("invalid decode using OP_PUSHDATA4 - payload too small", func(t *testing.T) {
data := "testing the code OP_PUSHDATA4"
b := make([]byte, 0)
b = append(b, bscript.OpPUSHDATA4)
b = append(b, byte(len(data)))
b = append(b, []byte(data)...)
decoded, err := bscript.DecodeParts(b)
require.Error(t, err)
assert.Empty(t, decoded)
})
t.Run("invalid decode using OP_PUSHDATA4 - missing data payload", func(t *testing.T) {
b := make([]byte, 0)
b = append(b, bscript.OpPUSHDATA4)
decoded, err := bscript.DecodeParts(b)
require.Error(t, err)
assert.Empty(t, decoded)
})
t.Run("panic", func(t *testing.T) {
// todo: tested this and it does NOT panic...?
s := "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"
_, err := bscript.DecodeStringParts(s)
require.NoError(t, err)
})
}