297 lines
7.9 KiB
JavaScript
297 lines
7.9 KiB
JavaScript
'use strict';
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// Extracted out of jasmine 2.5.2
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function equals(a, b, customTesters) {
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customTesters = customTesters || [];
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return eq(a, b, [], [], customTesters);
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} /*
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Copyright (c) 2008-2016 Pivotal Labs
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/ /* eslint-disable */function isAsymmetric(obj) {return obj && isA('Function', obj.asymmetricMatch);}function asymmetricMatch(a, b) {var asymmetricA = isAsymmetric(a),asymmetricB = isAsymmetric(b);if (asymmetricA && asymmetricB) {return undefined;}if (asymmetricA) {return a.asymmetricMatch(b);}if (asymmetricB) {return b.asymmetricMatch(a);}} // Equality function lovingly adapted from isEqual in
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// [Underscore](http://underscorejs.org)
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function eq(a, b, aStack, bStack, customTesters) {var result = true;
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var asymmetricResult = asymmetricMatch(a, b);
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if (asymmetricResult !== undefined) {
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return asymmetricResult;
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}
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for (var i = 0; i < customTesters.length; i++) {
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var customTesterResult = customTesters[i](a, b);
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if (customTesterResult !== undefined) {
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return customTesterResult;
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}
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}
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if (a instanceof Error && b instanceof Error) {
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return a.message == b.message;
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}
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// Identical objects are equal. `0 === -0`, but they aren't identical.
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// See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
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if (a === b) {
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return a !== 0 || 1 / a == 1 / b;
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}
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// A strict comparison is necessary because `null == undefined`.
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if (a === null || b === null) {
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return a === b;
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}
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var className = Object.prototype.toString.call(a);
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if (className != Object.prototype.toString.call(b)) {
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return false;
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}
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switch (className) {
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// Strings, numbers, dates, and booleans are compared by value.
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case '[object String]':
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// Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
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// equivalent to `new String("5")`.
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return a == String(b);
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case '[object Number]':
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// `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for
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// other numeric values.
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return a != +a ? b != +b : a === 0 ? 1 / a == 1 / b : a == +b;
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case '[object Date]':
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case '[object Boolean]':
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// Coerce dates and booleans to numeric primitive values. Dates are compared by their
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// millisecond representations. Note that invalid dates with millisecond representations
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// of `NaN` are not equivalent.
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return +a == +b;
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// RegExps are compared by their source patterns and flags.
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case '[object RegExp]':
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return (
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a.source == b.source &&
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a.global == b.global &&
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a.multiline == b.multiline &&
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a.ignoreCase == b.ignoreCase);}
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if (typeof a != 'object' || typeof b != 'object') {
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return false;
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}
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var aIsDomNode = isDomNode(a);
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var bIsDomNode = isDomNode(b);
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if (aIsDomNode && bIsDomNode) {
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// At first try to use DOM3 method isEqualNode
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if (a.isEqualNode) {
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return a.isEqualNode(b);
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}
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// IE8 doesn't support isEqualNode, try to use outerHTML && innerText
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var aIsElement = a instanceof Element;
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var bIsElement = b instanceof Element;
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if (aIsElement && bIsElement) {
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return a.outerHTML == b.outerHTML;
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}
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if (aIsElement || bIsElement) {
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return false;
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}
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return a.innerText == b.innerText && a.textContent == b.textContent;
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}
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if (aIsDomNode || bIsDomNode) {
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return false;
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}
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// Assume equality for cyclic structures. The algorithm for detecting cyclic
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// structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
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var length = aStack.length;
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while (length--) {
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// Linear search. Performance is inversely proportional to the number of
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// unique nested structures.
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if (aStack[length] == a) {
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return bStack[length] == b;
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}
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}
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// Add the first object to the stack of traversed objects.
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aStack.push(a);
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bStack.push(b);
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var size = 0;
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// Recursively compare objects and arrays.
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// Compare array lengths to determine if a deep comparison is necessary.
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if (className == '[object Array]') {
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size = a.length;
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if (size !== b.length) {
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return false;
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}
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while (size--) {
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result = eq(a[size], b[size], aStack, bStack, customTesters);
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if (!result) {
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return false;
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}
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}
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} else {
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} // Objects with different constructors are not equivalent, but `Object`s
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// or `Array`s from different frames are.
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// CUSTOM JEST CHANGE:
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// TODO(cpojer): fix all tests and this and re-enable this check
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/*
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var aCtor = a.constructor, bCtor = b.constructor;
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if (aCtor !== bCtor && !(isFunction(aCtor) && aCtor instanceof aCtor &&
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isFunction(bCtor) && bCtor instanceof bCtor)) {
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return false;
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}
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*/ // Deep compare objects.
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var aKeys = keys(a, className == '[object Array]'),key;size = aKeys.length; // Ensure that both objects contain the same number of properties before comparing deep equality.
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if (keys(b, className == '[object Array]').length !== size) {return false;}while (size--) {key = aKeys[size];
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// Deep compare each member
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result = has(b, key) && eq(a[key], b[key], aStack, bStack, customTesters);
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if (!result) {
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return false;
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}
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}
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// Remove the first object from the stack of traversed objects.
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aStack.pop();
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bStack.pop();
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return result;
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}
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function keys(obj, isArray) {
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// CUSTOM JEST CHANGE: don't consider undefined keys.
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var allKeys = function (o) {
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var keys = [];
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for (var key in o) {
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if (has(o, key)) {
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keys.push(key);
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}
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}
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return keys;
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}(obj);
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if (!isArray) {
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return allKeys;
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}
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var extraKeys = [];
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if (allKeys.length === 0) {
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return allKeys;
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}
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for (var x = 0; x < allKeys.length; x++) {
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if (!allKeys[x].match(/^[0-9]+$/)) {
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extraKeys.push(allKeys[x]);
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}
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}
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return extraKeys;
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}
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function has(obj, key) {
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// CUSTOM JEST CHANGE:
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// TODO(cpojer): remove the `obj[key] !== undefined` check.
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return (
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Object.prototype.hasOwnProperty.call(obj, key) && obj[key] !== undefined);
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}
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function isA(typeName, value) {
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return Object.prototype.toString.apply(value) === '[object ' + typeName + ']';
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}
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function isDomNode(obj) {
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return obj.nodeType > 0;
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}
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function fnNameFor(func) {
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if (func.name) {
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return func.name;
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}
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const matches = func.toString().match(/^\s*function\s*(\w*)\s*\(/);
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return matches ? matches[1] : '<anonymous>';
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}
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function isUndefined(obj) {
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return obj === void 0;
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}
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function getPrototype(obj) {
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if (Object.getPrototypeOf) {
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return Object.getPrototypeOf(obj);
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}
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if (obj.constructor.prototype == obj) {
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return null;
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}
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return obj.constructor.prototype;
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}
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function hasProperty(obj, property) {
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if (!obj) {
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return false;
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}
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if (Object.prototype.hasOwnProperty.call(obj, property)) {
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return true;
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}
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return hasProperty(getPrototype(obj), property);
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}
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module.exports = {
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equals,
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fnNameFor,
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hasProperty,
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isA,
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isUndefined }; |