136 lines
4.1 KiB
JavaScript
136 lines
4.1 KiB
JavaScript
/* global describe, it */
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var assert = require('assert')
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var bscript = require('../src/script')
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var minimalData = require('minimaldata')
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var fixtures = require('./fixtures/script.json')
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describe('script', function () {
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// TODO
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describe('isCanonicalPubKey', function () {
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it('rejects if not provided a Buffer', function () {
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assert.strictEqual(false, bscript.isCanonicalPubKey(0))
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})
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it('rejects smaller than 33', function () {
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for (var i = 0; i < 33; i++) {
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assert.strictEqual(false, bscript.isCanonicalPubKey(new Buffer('', i)))
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}
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})
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})
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describe.skip('isCanonicalSignature', function () {})
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describe('fromASM/toASM', function () {
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fixtures.valid.forEach(function (f) {
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it('encodes/decodes ' + f.asm, function () {
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var scriptSig = bscript.fromASM(f.asm)
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assert.strictEqual(bscript.toASM(scriptSig), f.asm)
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})
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})
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fixtures.invalid.fromASM.forEach(function (f) {
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it('throws ' + f.description, function () {
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assert.throws(function () {
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bscript.fromASM(f.script)
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}, new RegExp(f.description))
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})
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})
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})
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describe('isPushOnly', function () {
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fixtures.valid.forEach(function (f) {
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it('returns ' + !!f.stack + ' for ' + f.asm, function () {
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var script = bscript.fromASM(f.asm)
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var chunks = bscript.decompile(script)
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assert.strictEqual(bscript.isPushOnly(chunks), !!f.stack)
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})
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})
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})
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describe('toStack', function () {
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fixtures.valid.forEach(function (f) {
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it('returns ' + !!f.stack + ' for ' + f.asm, function () {
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var script = bscript.fromASM(f.asm)
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if (f.stack && f.asm) {
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try {
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var stack = bscript.toStack(script)
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assert.deepEqual(stack.map(function (x) { return x.toString('hex') }), f.stack)
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assert.equal(bscript.toASM(bscript.compile(stack)), f.asm, 'should rebuild same script from stack')
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} catch (e) {
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assert.strictEqual(f.stack, undefined)
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}
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}
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})
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})
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})
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describe('compile (via fromASM)', function () {
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fixtures.valid.forEach(function (f) {
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it('(' + f.type + ') compiles ' + f.asm, function () {
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var scriptSig = bscript.fromASM(f.asm)
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assert.strictEqual(scriptSig.toString('hex'), f.script)
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if (f.nonstandard) {
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var scriptSigNS = bscript.fromASM(f.nonstandard.scriptSig)
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assert.strictEqual(scriptSigNS.toString('hex'), f.script)
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}
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})
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})
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})
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describe('decompile', function () {
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fixtures.valid.forEach(function (f) {
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it('decompiles ' + f.asm, function () {
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var chunks = bscript.decompile(new Buffer(f.script, 'hex'))
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assert.strictEqual(bscript.compile(chunks).toString('hex'), f.script)
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assert.strictEqual(bscript.toASM(chunks), f.asm)
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if (f.nonstandard) {
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var chunksNS = bscript.decompile(new Buffer(f.nonstandard.scriptSigHex, 'hex'))
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assert.strictEqual(bscript.compile(chunksNS).toString('hex'), f.script)
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// toASM converts verbatim, only `compile` transforms the script to a minimalpush compliant script
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assert.strictEqual(bscript.toASM(chunksNS), f.nonstandard.scriptSig)
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}
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})
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})
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fixtures.invalid.decompile.forEach(function (f) {
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it('decompiles ' + f.script + ' to [] because of "' + f.description + '"', function () {
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var chunks = bscript.decompile(new Buffer(f.script, 'hex'))
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assert.strictEqual(chunks.length, 0)
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})
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})
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})
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describe('SCRIPT_VERIFY_MINIMALDATA policy', function () {
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fixtures.valid.forEach(function (f) {
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it('compliant for ' + f.type + ' scriptSig ' + f.asm, function () {
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var script = new Buffer(f.script, 'hex')
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assert(minimalData(script))
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})
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})
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function testEncodingForSize (i) {
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it('compliant for data PUSH of length ' + i, function () {
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var buffer = new Buffer(i)
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var script = bscript.compile([buffer])
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assert(minimalData(script), 'Failed for ' + i + ' length script: ' + script.toString('hex'))
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})
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}
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for (var i = 0; i < 520; ++i) {
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testEncodingForSize(i)
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}
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})
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})
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