ce4c83ff
 wxy
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'use strict';
var assert = require('assert');
var crypto = require('crypto');
var stream = require('stream');
var hash = require('../index');
var validSha1 = /^[0-9a-f]{40}$/i;
describe('hash() objects with custom class names', function() {
var builtinToString;
beforeEach(function() {
builtinToString = Object.prototype.toString;
Object.prototype.toString = function() {
if (this && typeof this.__className !== 'undefined') {
return this.__className;
}
return builtinToString.apply(this, arguments);
};
});
afterEach(function() {
Object.prototype.toString = builtinToString;
});
it('should throw when trying to hash an unknown object', function() {
assert.throws(function() {
hash({a:1, __className: '[object Foo]'});
}, /Unknown object type "foo"/);
assert.throws(function() {
hash({a:1, __className: 'Foo'});
}, /Unknown object type/);
});
it('should not throw when trying to hash an unknown object with ignoreUnknown', function() {
var opt = {ignoreUnknown: true};
assert.ok(validSha1.test(hash({a:1, __className: '[object Foo]'}, opt)));
});
it('should not throw when trying to hash a weirdly-named object with ignoreUnknown', function() {
var opt = {ignoreUnknown: true};
assert.ok(validSha1.test(hash({a:1, __className: 'Foo'}, opt)));
});
it('should not delve further into a number of native types', function() {
var nativeTypes = [
'domwindow',
'process', 'timer', 'pipe', 'tcp', 'udp', 'tty', 'statwatcher',
'securecontext', 'connection', 'zlib', 'context', 'nodescript',
'httpparser', 'dataview', 'signal', 'fsevent', 'tlswrap'
];
for (var i = 0; i < nativeTypes.length; i++) {
var obj = { foobar: 1, __className: '[object ' + nativeTypes[i] + ']' };
var serialized = hash(obj, { algorithm: 'passthrough', encoding: 'utf8' });
assert.strictEqual(serialized, nativeTypes[i]);
}
});
it('should hash xml based on its string representation', function() {
var obj = {
__className: '[object xml]',
toString: function() { return 'Bananä' }
};
var serialized = hash(obj, { algorithm: 'passthrough', encoding: 'utf8' });
assert.strictEqual(serialized, 'xml:Bananä');
});
it('should hash URLs based on its string representation', function() {
var obj = {
__className: '[object url]',
toString: function() { return 'https://example.com/' }
};
var serialized = hash(obj, { algorithm: 'passthrough', encoding: 'utf8' });
assert.strictEqual(serialized, 'url:https://example.com/');
});
it('should not hash blobs without ignoreUnknown', function() {
var obj = {
__className: '[object blob]'
};
assert.throws(function() {
hash(obj);
}, /not supported/);
});
it('should ignore blobs with ignoreUnknown', function() {
var obj = {
__className: '[object blob]'
};
var serialized = hash(obj, {
algorithm: 'passthrough',
encoding: 'utf8',
ignoreUnknown: true
});
assert.strictEqual(serialized, '[blob]');
});
});
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