Add precondition checks to HDPrivateKey.from*
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@ -4,6 +4,7 @@
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var assert = require('assert');
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var buffer = require('buffer');
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var _ = require('lodash');
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var $ = require('./util/preconditions');
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var BN = require('./crypto/bn');
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var Base58 = require('./encoding/base58');
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@ -277,7 +278,18 @@ HDPrivateKey._validateNetwork = function(data, networkArg) {
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return null;
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};
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HDPrivateKey.fromJSON = HDPrivateKey.fromObject = HDPrivateKey.fromString = function(arg) {
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HDPrivateKey.fromJSON = function(arg) {
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$.checkArgument(JSUtil.isValidJSON(arg), 'No valid JSON string was provided');
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return new HDPrivateKey(arg);
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};
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HDPrivateKey.fromString = function(arg) {
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$.checkArgument(_.isString(arg), 'No valid string was provided');
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return new HDPrivateKey(arg);
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};
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HDPrivateKey.fromObject = function(arg) {
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$.checkArgument(_.isObject(arg), 'No valid argument was provided');
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return new HDPrivateKey(arg);
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};
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@ -29,6 +29,9 @@ module.exports = {
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*/
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isValidJSON: function isValidJSON(arg) {
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var parsed;
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if (!_.isString(arg)) {
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return false;
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}
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try {
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parsed = JSON.parse(arg);
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} catch (e) {
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@ -78,14 +78,39 @@ describe('HDPrivate key interface', function() {
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));
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});
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describe('should error with a nonsensical argument', function() {
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it('like a number', function() {
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describe('instantiation', function() {
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it('invalid argument: can not instantiate from a number', function() {
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expectFailBuilding(1, hdErrors.UnrecognizedArgument);
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});
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});
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it('allows no-new calling', function() {
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HDPrivateKey(xprivkey).toString().should.equal(xprivkey);
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it('allows no-new calling', function() {
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HDPrivateKey(xprivkey).toString().should.equal(xprivkey);
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});
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var expectStaticMethodFail = function(staticMethod, argument, message) {
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expect(HDPrivateKey[staticMethod].bind(null, argument)).to.throw(message);
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};
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it('fromJSON checks that a valid JSON is provided', function() {
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var errorMessage = 'No valid JSON string was provided';
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var method = 'fromJSON';
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expectStaticMethodFail(method, undefined, errorMessage);
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expectStaticMethodFail(method, null, errorMessage);
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expectStaticMethodFail(method, 'invalid JSON', errorMessage);
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expectStaticMethodFail(method, '{\'singlequotes\': true}', errorMessage);
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expectStaticMethodFail(method, {}, errorMessage);
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});
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it('fromString checks that a string is provided', function() {
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var errorMessage = 'No valid string was provided';
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var method = 'fromString';
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expectStaticMethodFail(method, undefined, errorMessage);
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expectStaticMethodFail(method, null, errorMessage);
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expectStaticMethodFail(method, {}, errorMessage);
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});
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it('fromObject checks that an object is provided', function() {
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var errorMessage = 'No valid argument was provided';
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var method = 'fromObject';
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expectStaticMethodFail(method, undefined, errorMessage);
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expectStaticMethodFail(method, null, errorMessage);
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expectStaticMethodFail(method, '', errorMessage);
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});
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});
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it('inspect() displays correctly', function() {
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