@testim/testim-cli
Version:
Command line interface for running Testing on you CI
275 lines (237 loc) • 9.22 kB
JavaScript
/** `Object#toString` result shortcuts */
var argsClass = '[object Arguments]',
arrayClass = '[object Array]',
boolClass = '[object Boolean]',
dateClass = '[object Date]',
errorClass = '[object Error]',
funcClass = '[object Function]',
numberClass = '[object Number]',
objectClass = '[object Object]',
regexpClass = '[object RegExp]',
stringClass = '[object String]';
var toString = Object.prototype.toString,
hasOwnProperty = Object.prototype.hasOwnProperty,
supportsArgsClass = toString.call(arguments) == argsClass, // For less <IE9 && FF<4
supportNodeClass,
errorProto = Error.prototype,
objectProto = Object.prototype,
stringProto = String.prototype,
propertyIsEnumerable = objectProto.propertyIsEnumerable;
try {
supportNodeClass = !(toString.call(document) == objectClass && !({ 'toString': 0 } + ''));
} catch (e) {
supportNodeClass = true;
}
var nonEnumProps = {};
nonEnumProps[arrayClass] = nonEnumProps[dateClass] = nonEnumProps[numberClass] = { 'constructor': true, 'toLocaleString': true, 'toString': true, 'valueOf': true };
nonEnumProps[boolClass] = nonEnumProps[stringClass] = { 'constructor': true, 'toString': true, 'valueOf': true };
nonEnumProps[errorClass] = nonEnumProps[funcClass] = nonEnumProps[regexpClass] = { 'constructor': true, 'toString': true };
nonEnumProps[objectClass] = { 'constructor': true };
var support = {};
(function () {
var ctor = function() { this.x = 1; },
props = [];
ctor.prototype = { 'valueOf': 1, 'y': 1 };
for (var key in new ctor) { props.push(key); }
for (key in arguments) { }
// Detect if `name` or `message` properties of `Error.prototype` are enumerable by default.
support.enumErrorProps = propertyIsEnumerable.call(errorProto, 'message') || propertyIsEnumerable.call(errorProto, 'name');
// Detect if `prototype` properties are enumerable by default.
support.enumPrototypes = propertyIsEnumerable.call(ctor, 'prototype');
// Detect if `arguments` object indexes are non-enumerable
support.nonEnumArgs = key != 0;
// Detect if properties shadowing those on `Object.prototype` are non-enumerable.
support.nonEnumShadows = !/valueOf/.test(props);
}(1));
var isObject = Rx.internals.isObject = function(value) {
var type = typeof value;
return value && (type == 'function' || type == 'object') || false;
};
function keysIn(object) {
var result = [];
if (!isObject(object)) {
return result;
}
if (support.nonEnumArgs && object.length && isArguments(object)) {
object = slice.call(object);
}
var skipProto = support.enumPrototypes && typeof object == 'function',
skipErrorProps = support.enumErrorProps && (object === errorProto || object instanceof Error);
for (var key in object) {
if (!(skipProto && key == 'prototype') &&
!(skipErrorProps && (key == 'message' || key == 'name'))) {
result.push(key);
}
}
if (support.nonEnumShadows && object !== objectProto) {
var ctor = object.constructor,
index = -1,
length = dontEnumsLength;
if (object === (ctor && ctor.prototype)) {
var className = object === stringProto ? stringClass : object === errorProto ? errorClass : toString.call(object),
nonEnum = nonEnumProps[className];
}
while (++index < length) {
key = dontEnums[index];
if (!(nonEnum && nonEnum[key]) && hasOwnProperty.call(object, key)) {
result.push(key);
}
}
}
return result;
}
function internalFor(object, callback, keysFunc) {
var index = -1,
props = keysFunc(object),
length = props.length;
while (++index < length) {
var key = props[index];
if (callback(object[key], key, object) === false) {
break;
}
}
return object;
}
function internalForIn(object, callback) {
return internalFor(object, callback, keysIn);
}
function isNode(value) {
// IE < 9 presents DOM nodes as `Object` objects except they have `toString`
// methods that are `typeof` "string" and still can coerce nodes to strings
return typeof value.toString != 'function' && typeof (value + '') == 'string';
}
var isArguments = function(value) {
return (value && typeof value == 'object') ? toString.call(value) == argsClass : false;
}
// fallback for browsers that can't detect `arguments` objects by [[Class]]
if (!supportsArgsClass) {
isArguments = function(value) {
return (value && typeof value == 'object') ? hasOwnProperty.call(value, 'callee') : false;
};
}
var isEqual = Rx.internals.isEqual = function (x, y) {
return deepEquals(x, y, [], []);
};
/** @private
* Used for deep comparison
**/
function deepEquals(a, b, stackA, stackB) {
// exit early for identical values
if (a === b) {
// treat `+0` vs. `-0` as not equal
return a !== 0 || (1 / a == 1 / b);
}
var type = typeof a,
otherType = typeof b;
// exit early for unlike primitive values
if (a === a && (a == null || b == null ||
(type != 'function' && type != 'object' && otherType != 'function' && otherType != 'object'))) {
return false;
}
// compare [[Class]] names
var className = toString.call(a),
otherClass = toString.call(b);
if (className == argsClass) {
className = objectClass;
}
if (otherClass == argsClass) {
otherClass = objectClass;
}
if (className != otherClass) {
return false;
}
switch (className) {
case boolClass:
case dateClass:
// coerce dates and booleans to numbers, dates to milliseconds and booleans
// to `1` or `0` treating invalid dates coerced to `NaN` as not equal
return +a == +b;
case numberClass:
// treat `NaN` vs. `NaN` as equal
return (a != +a) ?
b != +b :
// but treat `-0` vs. `+0` as not equal
(a == 0 ? (1 / a == 1 / b) : a == +b);
case regexpClass:
case stringClass:
// coerce regexes to strings (http://es5.github.io/#x15.10.6.4)
// treat string primitives and their corresponding object instances as equal
return a == String(b);
}
var isArr = className == arrayClass;
if (!isArr) {
// exit for functions and DOM nodes
if (className != objectClass || (!support.nodeClass && (isNode(a) || isNode(b)))) {
return false;
}
// in older versions of Opera, `arguments` objects have `Array` constructors
var ctorA = !support.argsObject && isArguments(a) ? Object : a.constructor,
ctorB = !support.argsObject && isArguments(b) ? Object : b.constructor;
// non `Object` object instances with different constructors are not equal
if (ctorA != ctorB &&
!(hasOwnProperty.call(a, 'constructor') && hasOwnProperty.call(b, 'constructor')) &&
!(isFunction(ctorA) && ctorA instanceof ctorA && isFunction(ctorB) && ctorB instanceof ctorB) &&
('constructor' in a && 'constructor' in b)
) {
return false;
}
}
// assume cyclic structures are equal
// the algorithm for detecting cyclic structures is adapted from ES 5.1
// section 15.12.3, abstract operation `JO` (http://es5.github.io/#x15.12.3)
var initedStack = !stackA;
stackA || (stackA = []);
stackB || (stackB = []);
var length = stackA.length;
while (length--) {
if (stackA[length] == a) {
return stackB[length] == b;
}
}
var size = 0;
var result = true;
// add `a` and `b` to the stack of traversed objects
stackA.push(a);
stackB.push(b);
// recursively compare objects and arrays (susceptible to call stack limits)
if (isArr) {
// compare lengths to determine if a deep comparison is necessary
length = a.length;
size = b.length;
result = size == length;
if (result) {
// deep compare the contents, ignoring non-numeric properties
while (size--) {
var index = length,
value = b[size];
if (!(result = deepEquals(a[size], value, stackA, stackB))) {
break;
}
}
}
}
else {
// deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
// which, in this case, is more costly
internalForIn(b, function(value, key, b) {
if (hasOwnProperty.call(b, key)) {
// count the number of properties.
size++;
// deep compare each property value.
return (result = hasOwnProperty.call(a, key) && deepEquals(a[key], value, stackA, stackB));
}
});
if (result) {
// ensure both objects have the same number of properties
internalForIn(a, function(value, key, a) {
if (hasOwnProperty.call(a, key)) {
// `size` will be `-1` if `a` has more properties than `b`
return (result = --size > -1);
}
});
}
}
stackA.pop();
stackB.pop();
return result;
}