Value identification and comparison functions. 

Value identification and comparison functions

mantoni

simenb

cjohansen

fatso83

mrgnrdrck

benjamin.gruenbaum

@sinonjs/samsam

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var valueToString = require("@sinonjs/commons").valueToString;

var className = require("@sinonjs/commons").className;

var typeOf = require("@sinonjs/commons").typeOf;

var arrayProto = require("@sinonjs/commons").prototypes.array;

var objectProto = require("@sinonjs/commons").prototypes.object;

var mapForEach = require("@sinonjs/commons").prototypes.map.forEach;

var isArguments = require("./is-arguments");

var isArrayType = require("./is-array-type");

var isIterable = require("./is-iterable");

var hasOwnProperty = objectProto.hasOwnProperty;

var getOwnPropertySymbols = Object.getOwnPropertySymbols;

 * Deep equal comparison. Two values are "deep equal" when:

 *   - They are equal, according to samsam.identical

 *   - They are both date objects representing the same time

 *   - They are both arrays containing elements that are all deepEqual

 *   - They are objects with the same set of properties, and each property

 *     in ``actual`` is deepEqual to the corresponding property in ``expectation``

 * @param {*} actual The object to examine

 * @param {*} expectation The object actual is expected to be equal to

 * @param {object} match A value to match on

 * @returns {boolean} Returns true when actual and expectation are considered equal

function deepEqualCyclic(actual, expectation, match) {

    // contain pathes (position in the object structure)

    // contains combinations of already compared objects

    // in the manner: { "$1['ref']$2['ref']": true }

    // does the recursion for the deep equal check

    // eslint-disable-next-line complexity

        // If both are matchers they must be the same instance in order to be

        // considered equal If we didn't do that we would end up running one

        if (match && match.isMatcher(expectationObj)) {

            if (match.isMatcher(actualObj)) {

                return actualObj === expectationObj;

            return expectationObj.test(actualObj);

        var actualType = typeof actualObj;

        var expectationType = typeof expectationObj;

            actualObj === expectationObj ||

            expectationObj === undefined ||

            return identical(actualObj, expectationObj);

        // Elements are only equal if identical(expected, actual)

        if (isElement(actualObj) || isElement(expectationObj)) {

        // jQuery objects have iteration protocols

        // see: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols

        // But, they don't work well with the implementation concerning iterables below,

        // so we will detect them and use jQuery's own equality function

        /* istanbul ignore next -- this can only be tested in the `test-headless` script */

            actualObj.constructor.name === "jQuery" &&

            typeof actualObj.is === "function"

            return actualObj.is(expectationObj);

        var isExpectationNonArrayIterable =

            isIterable(expectationObj) &&

            !isArrayType(expectationObj) &&

            !isArguments(expectationObj);

        if (isActualNonArrayIterable || isExpectationNonArrayIterable) {

            var actualArray = Array.from(actualObj);

            var expectationArray = Array.from(expectationObj);

            if (actualArray.length !== expectationArray.length) {

            var arrayDeeplyEquals = true;

            every(actualArray, function (key) {

                    deepEqualCyclic(actualArray[key], expectationArray[key]);

        return every(expectationKeysAndSymbols, function (key) {

            if (!hasOwnProperty(actualObj, key)) {

            var actualValue = actualObj[key];

            var expectationValue = expectationObj[key];

            var actualObject = isObject(actualValue);

            var expectationObject = isObject(expectationValue);

            // determines, if the objects were already visited

            // (it's faster to check for isObject first, than to

            // get -1 from getIndex for non objects)

            var actualIndex = actualObject

                ? indexOf(actualObjects, actualValue)

            var expectationIndex = expectationObject

                ? indexOf(expectationObjects, expectationValue)

            // determines the new paths of the objects

            // - for non cyclic objects the current path will be extended

            //   by current property name

            // - for cyclic objects the stored path is taken

                    ? actualPaths[actualIndex]

                    : `${actualPath}[${JSON.stringify(key)}]`;

                    ? expectationPaths[expectationIndex]

                    : `${expectationPath}[${JSON.stringify(key)}]`;

            var combinedPath = newActualPath + newExpectationPath;

            // stop recursion if current objects are already compared

            if (compared[combinedPath]) {

            // remember the current objects and their paths

            if (actualIndex === -1 && actualObject) {

                push(actualObjects, actualValue);

                push(actualPaths, newActualPath);

            if (expectationIndex === -1 && expectationObject) {

                push(expectationObjects, expectationValue);

		{
		"name": "@sinonjs/samsam",
		"version": "6.1.2",
		"version": "6.1.3",
		"description": "Value identification and comparison functions",
		@@ -5,0 +5,0 @@ "homepage": "http://sinonjs.github.io/samsam/",

 @@ -194,2 +194,15 @@ "use strict";
         // jQuery objects have iteration protocols
         // see: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols
         // But, they don't work well with the implementation concerning iterables below,
         // so we will detect them and use jQuery's own equality function
         /* istanbul ignore next -- this can only be tested in the `test-headless` script */
         if (
             actualObj.constructor &&
             actualObj.constructor.name === "jQuery" &&
             typeof actualObj.is === "function"
         ) {
             return actualObj.is(expectationObj);
         var isActualNonArrayIterable =
 @@ -196,0 +209,0 @@ isIterable(actualObj) &&

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