95 lines
2.5 KiB
JavaScript
95 lines
2.5 KiB
JavaScript
/* global describe, it */
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/* eslint-disable no-new */
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var assert = require('assert')
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var opcodes = require('../src/opcodes')
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var Script = require('../src/script')
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var fixtures = require('./fixtures/script.json')
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describe('Script', function () {
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describe('constructor', function () {
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it('accepts valid parameters', function () {
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var buffer = new Buffer([1])
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var chunks = [1]
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var script = new Script(buffer, chunks)
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assert.equal(script.buffer, buffer)
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assert.equal(script.chunks, chunks)
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})
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it('throws an error when input is not an array', function () {
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assert.throws(function () {
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new Script({})
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}, /Expected Buffer, got/)
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})
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})
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describe('fromASM/toASM', function () {
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fixtures.valid.forEach(function (f) {
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if (!f.asm) return
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it('decodes/encodes ' + f.description, function () {
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var script = Script.fromASM(f.asm)
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assert.equal(script.toASM(), f.asm)
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assert.equal(script.toHex(), f.hex)
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})
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})
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})
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describe('fromHex/toHex', function () {
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fixtures.valid.forEach(function (f) {
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it('decodes/encodes ' + f.description, function () {
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var script = Script.fromHex(f.hex)
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assert.equal(script.toASM(), f.asm)
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assert.equal(script.toHex(), f.hex)
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})
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})
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})
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describe('getHash', function () {
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fixtures.valid.forEach(function (f) {
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it('produces a HASH160 of ' + f.description, function () {
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var script = Script.fromHex(f.hex)
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assert.equal(script.getHash().toString('hex'), f.hash)
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})
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})
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})
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describe('fromChunks', function () {
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it('should match expected behaviour', function () {
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var hash = new Buffer(32)
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hash.fill(0)
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var script = Script.fromChunks([
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opcodes.OP_HASH160,
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hash,
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opcodes.OP_EQUAL
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])
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assert.equal(script.toHex(), 'a920000000000000000000000000000000000000000000000000000000000000000087')
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})
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})
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describe('without', function () {
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var hex = 'a914e8c300c87986efa94c37c0519929019ef86eb5b487'
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var script = Script.fromHex(hex)
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it('should return a script without the given value', function () {
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var subScript = script.without(opcodes.OP_HASH160)
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assert.equal(subScript.toHex(), '14e8c300c87986efa94c37c0519929019ef86eb5b487')
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})
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it('shouldnt mutate the original script', function () {
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var subScript = script.without(opcodes.OP_EQUAL)
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assert.notEqual(subScript.toHex(), hex)
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assert.equal(script.toHex(), hex)
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})
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})
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})
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