mirror of
https://github.com/socketio/socket.io.git
synced 2026-04-30 03:00:39 -04:00
Added my own adapted version of should.js that works on the browser and doesn't rely
on getters, but a tree of objects.
This commit is contained in:
Guillermo Rauch
893
support/should.js
Normal file
893
support/should.js
Normal file
@@ -0,0 +1,893 @@
|
||||
|
||||
/**
|
||||
* should.js by TJ Holowaychuk (MIT), adapted to run in browser and node.
|
||||
*/
|
||||
|
||||
(function (should) {
|
||||
|
||||
if ('undefined' != typeof exports) {
|
||||
exports = module.exports = should = require('assert');
|
||||
}
|
||||
|
||||
/**
|
||||
* Expose constructor.
|
||||
*/
|
||||
|
||||
should.Assertion = Assertion;
|
||||
|
||||
/**
|
||||
* Possible assertion flags.
|
||||
*/
|
||||
|
||||
var flags = {
|
||||
not: ['be', 'have', 'include']
|
||||
, an: ['instance']
|
||||
, and: ['be', 'have', 'include', 'an']
|
||||
, be: ['an']
|
||||
, have: ['an', 'own']
|
||||
, include: ['an']
|
||||
, not: ['include', 'have', 'be']
|
||||
, own: []
|
||||
, instance: []
|
||||
};
|
||||
|
||||
/**
|
||||
* Extend Object.prototype.
|
||||
*/
|
||||
|
||||
if (Object.defineProperty) {
|
||||
Object.defineProperty(
|
||||
Object.prototype
|
||||
, 'should'
|
||||
, {
|
||||
get: function () {
|
||||
var self = this.valueOf()
|
||||
, fn = function () {
|
||||
return new Assertion(self);
|
||||
};
|
||||
|
||||
if ('undefined' != typeof exports) {
|
||||
fn.__proto__ = exports;
|
||||
}
|
||||
|
||||
return fn;
|
||||
}
|
||||
, enumerable: false
|
||||
}
|
||||
);
|
||||
} else {
|
||||
Object.prototype.should = function () {
|
||||
return new Assertion(this.valueOf());
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructor
|
||||
*
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function Assertion (obj) {
|
||||
if (obj !== undefined) {
|
||||
this.obj = obj;
|
||||
this.flags = {};
|
||||
|
||||
var $flags = keys(flags);
|
||||
|
||||
for (var i = 0, l = $flags.length; i < l; i++) {
|
||||
this[$flags[i]] = new FlaggedAssertion(this, $flags[i]);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* Performs an assertion
|
||||
*
|
||||
* @api private
|
||||
*/
|
||||
|
||||
Assertion.prototype.assert = function (truth, msg, error) {
|
||||
var msg = this.flags.not ? error : msg
|
||||
, ok = this.flags.not ? !truth : truth;
|
||||
|
||||
if (!ok) {
|
||||
throw new Error(msg);
|
||||
}
|
||||
|
||||
this.flags = {};
|
||||
};
|
||||
|
||||
/**
|
||||
* Checks if the value is true
|
||||
*
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.be_true = function () {
|
||||
this.assert(
|
||||
this.obj === true
|
||||
, 'expected ' + i(this.obj) + ' to be true'
|
||||
, 'expected ' + i(this.obj) + ' to not be true');
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Checks if the value is true
|
||||
*
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.be_false = function () {
|
||||
this.assert(
|
||||
this.obj === false
|
||||
, 'expected ' + i(this.obj) + ' to be false'
|
||||
, 'expected ' + i(this.obj) + ' to not be false'
|
||||
);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Check if the value is truthy
|
||||
*
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.ok = function () {
|
||||
this.assert(
|
||||
this.obj == true
|
||||
, 'expected ' + i(this.obj) + ' to be true'
|
||||
, 'expected ' + i(this.obj) + ' to not be true');
|
||||
};
|
||||
|
||||
/**
|
||||
* Checks if the array is empty.
|
||||
*
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.empty = function () {
|
||||
this.obj.should().have.property('length');
|
||||
this.assert(
|
||||
0 === this.obj.length
|
||||
, 'expected ' + i(this.obj) + ' to be empty'
|
||||
, 'expected ' + i(this.obj) + ' to not be empty');
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Checks if the obj is arguments.
|
||||
*
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.arguments = function () {
|
||||
this.assert(
|
||||
'[object Arguments]' == Object.prototype.toString.call(this.obj)
|
||||
, 'expected ' + i(this.obj) + ' to be arguments'
|
||||
, 'expected ' + i(this.obj) + ' to not be arguments');
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Checks if the obj exactly equals another.
|
||||
*
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.equal = function (obj) {
|
||||
this.assert(
|
||||
obj === this.obj
|
||||
, 'expected ' + i(this.obj) + ' to equal ' + i(obj)
|
||||
, 'expected ' + i(this.obj) + ' to not equal ' + i(obj));
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Checks if the obj sortof equals another.
|
||||
*
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.eql = function (obj) {
|
||||
this.assert(
|
||||
should.eql(obj, this.obj)
|
||||
, 'expected ' + i(this.obj) + ' to sort of equal ' + i(obj)
|
||||
, 'expected ' + i(this.obj) + ' to sort of not equal ' + i(obj));
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert within start to finish (inclusive).
|
||||
*
|
||||
* @param {Number} start
|
||||
* @param {Number} finish
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.within = function (start, finish) {
|
||||
var range = start + '..' + finish;
|
||||
this.assert(
|
||||
this.obj >= start && this.obj <= finish
|
||||
, 'expected ' + i(this.obj) + ' to be within ' + range
|
||||
, 'expected ' + i(this.obj) + ' to not be within ' + range);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert typeof.
|
||||
*
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.a = function (type) {
|
||||
this.assert(
|
||||
type == typeof this.obj
|
||||
, 'expected ' + i(this.obj) + ' to be a ' + type
|
||||
, 'expected ' + i(this.obj) + ' not to be a ' + type);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert instanceof.
|
||||
*
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.of = function (constructor) {
|
||||
var name = constructor.name;
|
||||
this.assert(
|
||||
this.obj instanceof constructor
|
||||
, 'expected ' + i(this.obj) + ' to be an instance of ' + name
|
||||
, 'expected ' + i(this.obj) + ' not to be an instance of ' + name);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert numeric value above _n_.
|
||||
*
|
||||
* @param {Number} n
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.greaterThan =
|
||||
Assertion.prototype.above = function (n) {
|
||||
this.assert(
|
||||
this.obj > n
|
||||
, 'expected ' + i(this.obj) + ' to be above ' + n
|
||||
, 'expected ' + i(this.obj) + ' to be below ' + n);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert numeric value below _n_.
|
||||
*
|
||||
* @param {Number} n
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.lessThan =
|
||||
Assertion.prototype.below = function (n) {
|
||||
this.assert(
|
||||
this.obj < n
|
||||
, 'expected ' + i(this.obj) + ' to be below ' + n
|
||||
, 'expected ' + i(this.obj) + ' to be above ' + n);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert string value matches _regexp_.
|
||||
*
|
||||
* @param {RegExp} regexp
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.match = function (regexp) {
|
||||
this.assert(
|
||||
regexp.exec(this.obj)
|
||||
, 'expected ' + i(this.obj) + ' to match ' + regexp
|
||||
, 'expected ' + i(this.obj) + ' not to match ' + regexp);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert property "length" exists and has value of _n_.
|
||||
*
|
||||
* @param {Number} n
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.length = function (n) {
|
||||
this.obj.should().have.property('length');
|
||||
var len = this.obj.length;
|
||||
this.assert(
|
||||
n == len
|
||||
, 'expected ' + i(this.obj) + ' to have a length of ' + n + ' but got ' + len
|
||||
, 'expected ' + i(this.obj) + ' to not have a length of ' + len);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert substring.
|
||||
*
|
||||
* @param {String} str
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.string = function(str){
|
||||
this.obj.should().be.a('string');
|
||||
this.assert(
|
||||
~this.obj.indexOf(str)
|
||||
, 'expected ' + i(this.obj) + ' to include ' + i(str)
|
||||
, 'expected ' + i(this.obj) + ' to not include ' + i(str));
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert inclusion of object.
|
||||
*
|
||||
* @param {Object} obj
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.object = function(obj){
|
||||
this.obj.should().be.a('object');
|
||||
var included = true;
|
||||
for (var key in obj) {
|
||||
if (obj.hasOwnProperty(key) && !should.eql(obj[key], this.obj[key])) {
|
||||
included = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
this.assert(
|
||||
included
|
||||
, 'expected ' + i(this.obj) + ' to include ' + i(obj)
|
||||
, 'expected ' + i(this.obj) + ' to not include ' + i(obj));
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert property _name_ exists, with optional _val_.
|
||||
*
|
||||
* @param {String} name
|
||||
* @param {Mixed} val
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.property = function (name, val) {
|
||||
if (this.flags.own) {
|
||||
this.assert(
|
||||
this.obj.hasOwnProperty(name)
|
||||
, 'expected ' + i(this.obj) + ' to have own property ' + i(name)
|
||||
, 'expected ' + i(this.obj) + ' to not have own property ' + i(name));
|
||||
return this;
|
||||
}
|
||||
|
||||
if (this.flags.not && undefined !== val) {
|
||||
if (undefined === this.obj[name]) {
|
||||
throw new Error(i(this.obj) + ' has no property ' + i(name));
|
||||
}
|
||||
} else {
|
||||
this.assert(
|
||||
undefined !== this.obj[name]
|
||||
, 'expected ' + i(this.obj) + ' to have a property ' + i(name)
|
||||
, 'expected ' + i(this.obj) + ' to not have a property ' + i(name));
|
||||
}
|
||||
|
||||
if (undefined !== val) {
|
||||
this.assert(
|
||||
val === this.obj[name]
|
||||
, 'expected ' + i(this.obj) + ' to have a property ' + i(name)
|
||||
+ ' of ' + i(val) + ', but got ' + i(this.obj[name])
|
||||
, 'expected ' + i(this.obj) + ' to not have a property ' + i(name)
|
||||
+ ' of ' + i(val));
|
||||
}
|
||||
|
||||
this.obj = this.obj[name];
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert that the array contains _obj_.
|
||||
*
|
||||
* @param {Mixed} obj
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.contain = function (obj) {
|
||||
this.obj.should.be.an.instance.of(Array);
|
||||
this.assert(
|
||||
~this.obj.indexOf(obj)
|
||||
, 'expected ' + i(this.obj) + ' to contain ' + i(obj)
|
||||
, 'expected ' + i(this.obj) + ' to not contain ' + i(obj));
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assert exact keys or inclusion of keys by using
|
||||
* the `.include` modifier.
|
||||
*
|
||||
* @param {Array|String ...} keys
|
||||
* @api public
|
||||
*/
|
||||
|
||||
Assertion.prototype.key =
|
||||
Assertion.prototype.keys = function (keys) {
|
||||
var str
|
||||
, ok = true;
|
||||
|
||||
keys = keys instanceof Array
|
||||
? keys
|
||||
: Array.prototype.slice.call(arguments);
|
||||
|
||||
if (!keys.length) throw new Error('keys required');
|
||||
|
||||
var actual = keys(this.obj)
|
||||
, len = keys.length;
|
||||
|
||||
// Inclusion
|
||||
ok = keys.every(function(key){
|
||||
return ~actual.indexOf(key);
|
||||
});
|
||||
|
||||
// Strict
|
||||
if (!this.flags.not && !this.flags.include) {
|
||||
ok = ok && keys.length == actual.length;
|
||||
}
|
||||
|
||||
// Key string
|
||||
if (len > 1) {
|
||||
keys = map(keys, function(key){
|
||||
return i(key);
|
||||
});
|
||||
var last = keys.pop();
|
||||
str = keys.join(', ') + ', and ' + last;
|
||||
} else {
|
||||
str = i(keys[0]);
|
||||
}
|
||||
|
||||
// Form
|
||||
str = (len > 1 ? 'keys ' : 'key ') + str;
|
||||
|
||||
// Have / include
|
||||
str = (this.flag.include ? 'include ' : 'have ') + str;
|
||||
|
||||
// Assertion
|
||||
this.assert(
|
||||
ok
|
||||
, 'expected ' + i(this.obj) + ' to ' + str
|
||||
, 'expected ' + i(this.obj) + ' to not ' + str);
|
||||
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* Assertion with a flag.
|
||||
*
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function FlaggedAssertion (parent, flag) {
|
||||
this.parent = parent;
|
||||
this.obj = parent.obj;
|
||||
|
||||
this.flag = flag;
|
||||
this.flags = {};
|
||||
this.flags[flag] = true;
|
||||
|
||||
for (var i in parent.flags) {
|
||||
if (parent.flags.hasOwnProperty(i)) {
|
||||
this.flags[i] = true;
|
||||
}
|
||||
}
|
||||
|
||||
var $flags = flags[flag];
|
||||
|
||||
for (var i = 0, l = $flags.length; i < l; i++) {
|
||||
this[$flags[i]] = new FlaggedAssertion(this, $flags[i]);
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* Inherits from assertion
|
||||
*/
|
||||
|
||||
FlaggedAssertion.prototype = new Assertion;
|
||||
|
||||
/**
|
||||
* Inspects an object.
|
||||
*
|
||||
* @see taken from node.js `util` module (copyright Joyent, MIT license)
|
||||
* @api private
|
||||
*/
|
||||
|
||||
function i (obj, showHidden, depth) {
|
||||
var seen = [];
|
||||
|
||||
function stylize (str) {
|
||||
return str;
|
||||
};
|
||||
|
||||
function format (value, recurseTimes) {
|
||||
// Provide a hook for user-specified inspect functions.
|
||||
// Check that value is an object with an inspect function on it
|
||||
if (value && typeof value.inspect === 'function' &&
|
||||
// Filter out the util module, it's inspect function is special
|
||||
value !== exports &&
|
||||
// Also filter out any prototype objects using the circular check.
|
||||
!(value.constructor && value.constructor.prototype === value)) {
|
||||
return value.inspect(recurseTimes);
|
||||
}
|
||||
|
||||
// Primitive types cannot have properties
|
||||
switch (typeof value) {
|
||||
case 'undefined':
|
||||
return stylize('undefined', 'undefined');
|
||||
|
||||
case 'string':
|
||||
var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
|
||||
.replace(/'/g, "\\'")
|
||||
.replace(/\\"/g, '"') + '\'';
|
||||
return stylize(simple, 'string');
|
||||
|
||||
case 'number':
|
||||
return stylize('' + value, 'number');
|
||||
|
||||
case 'boolean':
|
||||
return stylize('' + value, 'boolean');
|
||||
}
|
||||
// For some reason typeof null is "object", so special case here.
|
||||
if (value === null) {
|
||||
return stylize('null', 'null');
|
||||
}
|
||||
|
||||
// Look up the keys of the object.
|
||||
var visible_keys = keys(value);
|
||||
var $keys = showHidden ? Object.getOwnPropertyNames(value) : visible_keys;
|
||||
|
||||
// Functions without properties can be shortcutted.
|
||||
if (typeof value === 'function' && $keys.length === 0) {
|
||||
if (isRegExp(value)) {
|
||||
return stylize('' + value, 'regexp');
|
||||
} else {
|
||||
var name = value.name ? ': ' + value.name : '';
|
||||
return stylize('[Function' + name + ']', 'special');
|
||||
}
|
||||
}
|
||||
|
||||
// Dates without properties can be shortcutted
|
||||
if (isDate(value) && keys.length === 0) {
|
||||
return stylize(value.toUTCString(), 'date');
|
||||
}
|
||||
|
||||
var base, type, braces;
|
||||
// Determine the object type
|
||||
if (isArray(value)) {
|
||||
type = 'Array';
|
||||
braces = ['[', ']'];
|
||||
} else {
|
||||
type = 'Object';
|
||||
braces = ['{', '}'];
|
||||
}
|
||||
|
||||
// Make functions say that they are functions
|
||||
if (typeof value === 'function') {
|
||||
var n = value.name ? ': ' + value.name : '';
|
||||
base = (isRegExp(value)) ? ' ' + value : ' [Function' + n + ']';
|
||||
} else {
|
||||
base = '';
|
||||
}
|
||||
|
||||
// Make dates with properties first say the date
|
||||
if (isDate(value)) {
|
||||
base = ' ' + value.toUTCString();
|
||||
}
|
||||
|
||||
if (keys.length === 0) {
|
||||
return braces[0] + base + braces[1];
|
||||
}
|
||||
|
||||
if (recurseTimes < 0) {
|
||||
if (isRegExp(value)) {
|
||||
return stylize('' + value, 'regexp');
|
||||
} else {
|
||||
return stylize('[Object]', 'special');
|
||||
}
|
||||
}
|
||||
|
||||
seen.push(value);
|
||||
|
||||
var output = map(keys, function(key) {
|
||||
var name, str;
|
||||
if (value.__lookupGetter__) {
|
||||
if (value.__lookupGetter__(key)) {
|
||||
if (value.__lookupSetter__(key)) {
|
||||
str = stylize('[Getter/Setter]', 'special');
|
||||
} else {
|
||||
str = stylize('[Getter]', 'special');
|
||||
}
|
||||
} else {
|
||||
if (value.__lookupSetter__(key)) {
|
||||
str = stylize('[Setter]', 'special');
|
||||
}
|
||||
}
|
||||
}
|
||||
if (visible_keys.indexOf(key) < 0) {
|
||||
name = '[' + key + ']';
|
||||
}
|
||||
if (!str) {
|
||||
if (seen.indexOf(value[key]) < 0) {
|
||||
if (recurseTimes === null) {
|
||||
str = format(value[key]);
|
||||
} else {
|
||||
str = format(value[key], recurseTimes - 1);
|
||||
}
|
||||
if (str.indexOf('\n') > -1) {
|
||||
if (isArray(value)) {
|
||||
str = map(str.split('\n'), function(line) {
|
||||
return ' ' + line;
|
||||
}).join('\n').substr(2);
|
||||
} else {
|
||||
str = '\n' + map(str.split('\n'), function(line) {
|
||||
return ' ' + line;
|
||||
}).join('\n');
|
||||
}
|
||||
}
|
||||
} else {
|
||||
str = stylize('[Circular]', 'special');
|
||||
}
|
||||
}
|
||||
if (typeof name === 'undefined') {
|
||||
if (type === 'Array' && key.match(/^\d+$/)) {
|
||||
return str;
|
||||
}
|
||||
name = JSON.stringify('' + key);
|
||||
if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
|
||||
name = name.substr(1, name.length - 2);
|
||||
name = stylize(name, 'name');
|
||||
} else {
|
||||
name = name.replace(/'/g, "\\'")
|
||||
.replace(/\\"/g, '"')
|
||||
.replace(/(^"|"$)/g, "'");
|
||||
name = stylize(name, 'string');
|
||||
}
|
||||
}
|
||||
|
||||
return name + ': ' + str;
|
||||
});
|
||||
|
||||
seen.pop();
|
||||
|
||||
var numLinesEst = 0;
|
||||
var length = reduce(output, function(prev, cur) {
|
||||
numLinesEst++;
|
||||
if (cur.indexOf('\n') >= 0) numLinesEst++;
|
||||
return prev + cur.length + 1;
|
||||
}, 0);
|
||||
|
||||
if (length > 50) {
|
||||
output = braces[0] +
|
||||
(base === '' ? '' : base + '\n ') +
|
||||
' ' +
|
||||
output.join(',\n ') +
|
||||
' ' +
|
||||
braces[1];
|
||||
|
||||
} else {
|
||||
output = braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
|
||||
}
|
||||
|
||||
return output;
|
||||
}
|
||||
return format(obj, (typeof depth === 'undefined' ? 2 : depth));
|
||||
};
|
||||
|
||||
function isArray (ar) {
|
||||
return ar instanceof Array ||
|
||||
Object.prototype.toString.call(ar) == '[object Array]';
|
||||
};
|
||||
|
||||
function isRegExp(re) {
|
||||
var s = '' + re;
|
||||
return re instanceof RegExp || // easy case
|
||||
// duck-type for context-switching evalcx case
|
||||
typeof(re) === 'function' &&
|
||||
re.constructor.name === 'RegExp' &&
|
||||
re.compile &&
|
||||
re.test &&
|
||||
re.exec &&
|
||||
s.match(/^\/.*\/[gim]{0,3}$/);
|
||||
};
|
||||
|
||||
function isDate(d) {
|
||||
if (d instanceof Date) return true;
|
||||
return false;
|
||||
};
|
||||
|
||||
function keys (obj) {
|
||||
if (Object.keys) {
|
||||
return Object.keys(obj);
|
||||
}
|
||||
|
||||
var keys = [];
|
||||
|
||||
for (var i in keys) {
|
||||
if (keys.hasOwnProperty(i)) {
|
||||
keys.push(i);
|
||||
}
|
||||
}
|
||||
|
||||
return keys;
|
||||
}
|
||||
|
||||
function map (arr, mapper, that) {
|
||||
if (Array.prototype.map) {
|
||||
return Array.prototype.map.call(arr, mapper, that);
|
||||
}
|
||||
|
||||
var other= new Array(arr.length);
|
||||
|
||||
for (var i= 0, n = arr.length; i<n; i++)
|
||||
if (i in arr)
|
||||
other[i] = mapper.call(that, arr[i], i, arr);
|
||||
|
||||
return other;
|
||||
};
|
||||
|
||||
function reduce (arr, fun) {
|
||||
if (Array.prototype.reduce) {
|
||||
return Array.prototype.reduce.apply(
|
||||
arr
|
||||
, Array.prototype.slice.call(arguments, 1)
|
||||
);
|
||||
}
|
||||
|
||||
var len = +this.length;
|
||||
|
||||
if (typeof fun !== "function")
|
||||
throw new TypeError();
|
||||
|
||||
// no value to return if no initial value and an empty array
|
||||
if (len === 0 && arguments.length === 1)
|
||||
throw new TypeError();
|
||||
|
||||
var i = 0;
|
||||
if (arguments.length >= 2) {
|
||||
var rv = arguments[1];
|
||||
} else {
|
||||
do {
|
||||
if (i in this) {
|
||||
rv = this[i++];
|
||||
break;
|
||||
}
|
||||
|
||||
// if array contains no values, no initial value to return
|
||||
if (++i >= len)
|
||||
throw new TypeError();
|
||||
} while (true);
|
||||
}
|
||||
|
||||
for (; i < len; i++) {
|
||||
if (i in this)
|
||||
rv = fun.call(null, rv, this[i], i, this);
|
||||
}
|
||||
|
||||
return rv;
|
||||
};
|
||||
|
||||
/**
|
||||
* Strict equality
|
||||
*
|
||||
* @api public
|
||||
*/
|
||||
|
||||
should.equal = function (a, b) {
|
||||
if (a !== b) {
|
||||
should.fail('expected ' + i(a) + ' to equal ' + i(b));
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* Fails with msg
|
||||
*
|
||||
* @param {String} msg
|
||||
* @api public
|
||||
*/
|
||||
|
||||
should.fail = function (msg) {
|
||||
throw new Error(msg);
|
||||
};
|
||||
|
||||
/**
|
||||
* Asserts deep equality
|
||||
*
|
||||
* @see taken from node.js `assert` module (copyright Joyent, MIT license)
|
||||
* @api private
|
||||
*/
|
||||
|
||||
should.eql = function eql (actual, expected) {
|
||||
// 7.1. All identical values are equivalent, as determined by ===.
|
||||
if (actual === expected) {
|
||||
return true;
|
||||
} else if ('undefined' != typeof Buffer
|
||||
&& Buffer.isBuffer(actual) && Buffer.isBuffer(expected)) {
|
||||
if (actual.length != expected.length) return false;
|
||||
|
||||
for (var i = 0; i < actual.length; i++) {
|
||||
if (actual[i] !== expected[i]) return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
|
||||
// 7.2. If the expected value is a Date object, the actual value is
|
||||
// equivalent if it is also a Date object that refers to the same time.
|
||||
} else if (actual instanceof Date && expected instanceof Date) {
|
||||
return actual.getTime() === expected.getTime();
|
||||
|
||||
// 7.3. Other pairs that do not both pass typeof value == "object",
|
||||
// equivalence is determined by ==.
|
||||
} else if (typeof actual != 'object' && typeof expected != 'object') {
|
||||
return actual == expected;
|
||||
|
||||
// 7.4. For all other Object pairs, including Array objects, equivalence is
|
||||
// determined by having the same number of owned properties (as verified
|
||||
// with Object.prototype.hasOwnProperty.call), the same set of keys
|
||||
// (although not necessarily the same order), equivalent values for every
|
||||
// corresponding key, and an identical "prototype" property. Note: this
|
||||
// accounts for both named and indexed properties on Arrays.
|
||||
} else {
|
||||
return objEquiv(actual, expected);
|
||||
}
|
||||
}
|
||||
|
||||
function isUndefinedOrNull (value) {
|
||||
return value === null || value === undefined;
|
||||
}
|
||||
|
||||
function isArguments (object) {
|
||||
return Object.prototype.toString.call(object) == '[object Arguments]';
|
||||
}
|
||||
|
||||
function objEquiv (a, b) {
|
||||
if (isUndefinedOrNull(a) || isUndefinedOrNull(b))
|
||||
return false;
|
||||
// an identical "prototype" property.
|
||||
if (a.prototype !== b.prototype) return false;
|
||||
//~~~I've managed to break Object.keys through screwy arguments passing.
|
||||
// Converting to array solves the problem.
|
||||
if (isArguments(a)) {
|
||||
if (!isArguments(b)) {
|
||||
return false;
|
||||
}
|
||||
a = pSlice.call(a);
|
||||
b = pSlice.call(b);
|
||||
return should.eql(a, b);
|
||||
}
|
||||
try{
|
||||
var ka = keys(a),
|
||||
kb = keys(b),
|
||||
key, i;
|
||||
} catch (e) {//happens when one is a string literal and the other isn't
|
||||
return false;
|
||||
}
|
||||
// having the same number of owned properties (keys incorporates hasOwnProperty)
|
||||
if (ka.length != kb.length)
|
||||
return false;
|
||||
//the same set of keys (although not necessarily the same order),
|
||||
ka.sort();
|
||||
kb.sort();
|
||||
//~~~cheap key test
|
||||
for (i = ka.length - 1; i >= 0; i--) {
|
||||
if (ka[i] != kb[i])
|
||||
return false;
|
||||
}
|
||||
//equivalent values for every corresponding key, and
|
||||
//~~~possibly expensive deep test
|
||||
for (i = ka.length - 1; i >= 0; i--) {
|
||||
key = ka[i];
|
||||
if (!should.eql(a[key], b[key]))
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
})('undefined' != typeof exports ? exports : (should = {}));
|
||||
Reference in New Issue
Block a user