+++ /dev/null
-// Copyright (c) 2013-2017 The btcsuite developers
-// Use of this source code is governed by an ISC
-// license that can be found in the LICENSE file.
-
-package txscript
-
-import (
- "bytes"
- "fmt"
- "strconv"
- "strings"
- "testing"
-)
-
-// TestOpcodeDisabled tests the opcodeDisabled function manually because all
-// disabled opcodes result in a script execution failure when executed normally,
-// so the function is not called under normal circumstances.
-func TestOpcodeDisabled(t *testing.T) {
- t.Parallel()
-
- tests := []byte{OP_CAT, OP_SUBSTR, OP_LEFT, OP_RIGHT, OP_INVERT,
- OP_AND, OP_OR, OP_2MUL, OP_2DIV, OP_MUL, OP_DIV, OP_MOD,
- OP_LSHIFT, OP_RSHIFT,
- }
- for _, opcodeVal := range tests {
- pop := parsedOpcode{opcode: &opcodeArray[opcodeVal], data: nil}
- err := opcodeDisabled(&pop, nil)
- if !IsErrorCode(err, ErrDisabledOpcode) {
- t.Errorf("opcodeDisabled: unexpected error - got %v, "+
- "want %v", err, ErrDisabledOpcode)
- continue
- }
- }
-}
-
-// TestOpcodeDisasm tests the print function for all opcodes in both the oneline
-// and full modes to ensure it provides the expected disassembly.
-func TestOpcodeDisasm(t *testing.T) {
- t.Parallel()
-
- // First, test the oneline disassembly.
-
- // The expected strings for the data push opcodes are replaced in the
- // test loops below since they involve repeating bytes. Also, the
- // OP_NOP# and OP_UNKNOWN# are replaced below too, since it's easier
- // than manually listing them here.
- oneBytes := []byte{0x01}
- oneStr := "01"
- expectedStrings := [256]string{0x00: "0", 0x4f: "-1",
- 0x50: "OP_RESERVED", 0x61: "OP_NOP", 0x62: "OP_VER",
- 0x63: "OP_IF", 0x64: "OP_NOTIF", 0x65: "OP_VERIF",
- 0x66: "OP_VERNOTIF", 0x67: "OP_ELSE", 0x68: "OP_ENDIF",
- 0x69: "OP_VERIFY", 0x6a: "OP_RETURN", 0x6b: "OP_TOALTSTACK",
- 0x6c: "OP_FROMALTSTACK", 0x6d: "OP_2DROP", 0x6e: "OP_2DUP",
- 0x6f: "OP_3DUP", 0x70: "OP_2OVER", 0x71: "OP_2ROT",
- 0x72: "OP_2SWAP", 0x73: "OP_IFDUP", 0x74: "OP_DEPTH",
- 0x75: "OP_DROP", 0x76: "OP_DUP", 0x77: "OP_NIP",
- 0x78: "OP_OVER", 0x79: "OP_PICK", 0x7a: "OP_ROLL",
- 0x7b: "OP_ROT", 0x7c: "OP_SWAP", 0x7d: "OP_TUCK",
- 0x7e: "OP_CAT", 0x7f: "OP_SUBSTR", 0x80: "OP_LEFT",
- 0x81: "OP_RIGHT", 0x82: "OP_SIZE", 0x83: "OP_INVERT",
- 0x84: "OP_AND", 0x85: "OP_OR", 0x86: "OP_XOR",
- 0x87: "OP_EQUAL", 0x88: "OP_EQUALVERIFY", 0x89: "OP_RESERVED1",
- 0x8a: "OP_RESERVED2", 0x8b: "OP_1ADD", 0x8c: "OP_1SUB",
- 0x8d: "OP_2MUL", 0x8e: "OP_2DIV", 0x8f: "OP_NEGATE",
- 0x90: "OP_ABS", 0x91: "OP_NOT", 0x92: "OP_0NOTEQUAL",
- 0x93: "OP_ADD", 0x94: "OP_SUB", 0x95: "OP_MUL", 0x96: "OP_DIV",
- 0x97: "OP_MOD", 0x98: "OP_LSHIFT", 0x99: "OP_RSHIFT",
- 0x9a: "OP_BOOLAND", 0x9b: "OP_BOOLOR", 0x9c: "OP_NUMEQUAL",
- 0x9d: "OP_NUMEQUALVERIFY", 0x9e: "OP_NUMNOTEQUAL",
- 0x9f: "OP_LESSTHAN", 0xa0: "OP_GREATERTHAN",
- 0xa1: "OP_LESSTHANOREQUAL", 0xa2: "OP_GREATERTHANOREQUAL",
- 0xa3: "OP_MIN", 0xa4: "OP_MAX", 0xa5: "OP_WITHIN",
- 0xa6: "OP_RIPEMD160", 0xa7: "OP_SHA1", 0xa8: "OP_SHA256",
- 0xa9: "OP_HASH160", 0xaa: "OP_HASH256", 0xab: "OP_CODESEPARATOR",
- 0xac: "OP_CHECKSIG", 0xad: "OP_CHECKSIGVERIFY",
- 0xae: "OP_CHECKMULTISIG", 0xaf: "OP_CHECKMULTISIGVERIFY",
- 0xfa: "OP_SMALLINTEGER", 0xfb: "OP_PUBKEYS",
- 0xfd: "OP_PUBKEYHASH", 0xfe: "OP_PUBKEY",
- 0xff: "OP_INVALIDOPCODE",
- }
- for opcodeVal, expectedStr := range expectedStrings {
- var data []byte
- switch {
- // OP_DATA_1 through OP_DATA_65 display the pushed data.
- case opcodeVal >= 0x01 && opcodeVal < 0x4c:
- data = bytes.Repeat(oneBytes, opcodeVal)
- expectedStr = strings.Repeat(oneStr, opcodeVal)
-
- // OP_PUSHDATA1.
- case opcodeVal == 0x4c:
- data = bytes.Repeat(oneBytes, 1)
- expectedStr = strings.Repeat(oneStr, 1)
-
- // OP_PUSHDATA2.
- case opcodeVal == 0x4d:
- data = bytes.Repeat(oneBytes, 2)
- expectedStr = strings.Repeat(oneStr, 2)
-
- // OP_PUSHDATA4.
- case opcodeVal == 0x4e:
- data = bytes.Repeat(oneBytes, 3)
- expectedStr = strings.Repeat(oneStr, 3)
-
- // OP_1 through OP_16 display the numbers themselves.
- case opcodeVal >= 0x51 && opcodeVal <= 0x60:
- val := byte(opcodeVal - (0x51 - 1))
- data = []byte{val}
- expectedStr = strconv.Itoa(int(val))
-
- // OP_NOP1 through OP_NOP10.
- case opcodeVal >= 0xb0 && opcodeVal <= 0xb9:
- switch opcodeVal {
- case 0xb1:
- // OP_NOP2 is an alias of OP_CHECKLOCKTIMEVERIFY
- expectedStr = "OP_CHECKLOCKTIMEVERIFY"
- case 0xb2:
- // OP_NOP3 is an alias of OP_CHECKSEQUENCEVERIFY
- expectedStr = "OP_CHECKSEQUENCEVERIFY"
- default:
- val := byte(opcodeVal - (0xb0 - 1))
- expectedStr = "OP_NOP" + strconv.Itoa(int(val))
- }
-
- // OP_UNKNOWN#.
- case opcodeVal >= 0xba && opcodeVal <= 0xf9 || opcodeVal == 0xfc:
- expectedStr = "OP_UNKNOWN" + strconv.Itoa(int(opcodeVal))
- }
-
- pop := parsedOpcode{opcode: &opcodeArray[opcodeVal], data: data}
- gotStr := pop.print(true)
- if gotStr != expectedStr {
- t.Errorf("pop.print (opcode %x): Unexpected disasm "+
- "string - got %v, want %v", opcodeVal, gotStr,
- expectedStr)
- continue
- }
- }
-
- // Now, replace the relevant fields and test the full disassembly.
- expectedStrings[0x00] = "OP_0"
- expectedStrings[0x4f] = "OP_1NEGATE"
- for opcodeVal, expectedStr := range expectedStrings {
- var data []byte
- switch {
- // OP_DATA_1 through OP_DATA_65 display the opcode followed by
- // the pushed data.
- case opcodeVal >= 0x01 && opcodeVal < 0x4c:
- data = bytes.Repeat(oneBytes, opcodeVal)
- expectedStr = fmt.Sprintf("OP_DATA_%d 0x%s", opcodeVal,
- strings.Repeat(oneStr, opcodeVal))
-
- // OP_PUSHDATA1.
- case opcodeVal == 0x4c:
- data = bytes.Repeat(oneBytes, 1)
- expectedStr = fmt.Sprintf("OP_PUSHDATA1 0x%02x 0x%s",
- len(data), strings.Repeat(oneStr, 1))
-
- // OP_PUSHDATA2.
- case opcodeVal == 0x4d:
- data = bytes.Repeat(oneBytes, 2)
- expectedStr = fmt.Sprintf("OP_PUSHDATA2 0x%04x 0x%s",
- len(data), strings.Repeat(oneStr, 2))
-
- // OP_PUSHDATA4.
- case opcodeVal == 0x4e:
- data = bytes.Repeat(oneBytes, 3)
- expectedStr = fmt.Sprintf("OP_PUSHDATA4 0x%08x 0x%s",
- len(data), strings.Repeat(oneStr, 3))
-
- // OP_1 through OP_16.
- case opcodeVal >= 0x51 && opcodeVal <= 0x60:
- val := byte(opcodeVal - (0x51 - 1))
- data = []byte{val}
- expectedStr = "OP_" + strconv.Itoa(int(val))
-
- // OP_NOP1 through OP_NOP10.
- case opcodeVal >= 0xb0 && opcodeVal <= 0xb9:
- switch opcodeVal {
- case 0xb1:
- // OP_NOP2 is an alias of OP_CHECKLOCKTIMEVERIFY
- expectedStr = "OP_CHECKLOCKTIMEVERIFY"
- case 0xb2:
- // OP_NOP3 is an alias of OP_CHECKSEQUENCEVERIFY
- expectedStr = "OP_CHECKSEQUENCEVERIFY"
- default:
- val := byte(opcodeVal - (0xb0 - 1))
- expectedStr = "OP_NOP" + strconv.Itoa(int(val))
- }
-
- // OP_UNKNOWN#.
- case opcodeVal >= 0xba && opcodeVal <= 0xf9 || opcodeVal == 0xfc:
- expectedStr = "OP_UNKNOWN" + strconv.Itoa(int(opcodeVal))
- }
-
- pop := parsedOpcode{opcode: &opcodeArray[opcodeVal], data: data}
- gotStr := pop.print(false)
- if gotStr != expectedStr {
- t.Errorf("pop.print (opcode %x): Unexpected disasm "+
- "string - got %v, want %v", opcodeVal, gotStr,
- expectedStr)
- continue
- }
- }
-}
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