From 79ab6edc0e8e43aded9afbfe3860ee7fdddd8195 Mon Sep 17 00:00:00 2001 From: Quentin Barbe Date: Fri, 10 Nov 2023 11:34:23 +0100 Subject: [PATCH] Allow deepEqual fonction to be configured globally --- lib/chai/assertion.js | 3 + lib/chai/config.js | 28 +- lib/chai/core/assertions.js | 41 ++- package-lock.json | 571 ------------------------------------ test/configuration.js | 19 ++ 5 files changed, 68 insertions(+), 594 deletions(-) diff --git a/lib/chai/assertion.js b/lib/chai/assertion.js index 417a8a47..54a9d77f 100644 --- a/lib/chai/assertion.js +++ b/lib/chai/assertion.js @@ -40,6 +40,8 @@ import * as util from './utils/index.js'; * from within another assertion. It's also temporarily set to `true` before * an overwritten assertion gets called by the overwriting assertion. * + * - `eql`: This flag contains the deepEqual function to be used by the assertion. + * * @param {Mixed} obj target of the assertion * @param {String} msg (optional) custom error message * @param {Function} ssfi (optional) starting point for removing stack frames @@ -52,6 +54,7 @@ export function Assertion (obj, msg, ssfi, lockSsfi) { util.flag(this, 'lockSsfi', lockSsfi); util.flag(this, 'object', obj); util.flag(this, 'message', msg); + util.flag(this, 'eql', config.deepEqual ?? util.eql); return util.proxify(this); } diff --git a/lib/chai/config.js b/lib/chai/config.js index eb0e169f..60257ab8 100644 --- a/lib/chai/config.js +++ b/lib/chai/config.js @@ -90,5 +90,31 @@ export const config = { * @api public */ - proxyExcludedKeys: ['then', 'catch', 'inspect', 'toJSON'] + proxyExcludedKeys: ['then', 'catch', 'inspect', 'toJSON'], + + /** + * ### config.deepEqual + * + * User configurable property, defines which a custom function to use for deepEqual + * comparisons. + * By default, the function used is the one from the `deep-eql` package without custom comparator. + * + * // use a custom comparator + * chai.config.deepEqual = (expected, actual) => { + * return chai.util.eql(expected, actual, { + * comparator: (expected, actual) => { + * // for non number comparison, use the default behavior + * if(typeof expected !== 'number') return null; + * // allow a difference of 10 between compared numbers + * return typeof actual === 'number' && Math.abs(actual - expected) < 10 + * } + * }) + * }; + * + * @param {Function} + * @api public + */ + + deepEqual: null + }; diff --git a/lib/chai/core/assertions.js b/lib/chai/core/assertions.js index ed857cb2..4da99927 100644 --- a/lib/chai/core/assertions.js +++ b/lib/chai/core/assertions.js @@ -479,7 +479,8 @@ function include (val, msg) { , negate = flag(this, 'negate') , ssfi = flag(this, 'ssfi') , isDeep = flag(this, 'deep') - , descriptor = isDeep ? 'deep ' : ''; + , descriptor = isDeep ? 'deep ' : '' + , isEql = isDeep ? flag(this, 'eql') : SameValueZero; flagMsg = flagMsg ? flagMsg + ': ' : ''; @@ -503,7 +504,6 @@ function include (val, msg) { break; case 'map': - var isEql = isDeep ? _.eql : SameValueZero; obj.forEach(function (item) { included = included || isEql(item, val); }); @@ -512,7 +512,7 @@ function include (val, msg) { case 'set': if (isDeep) { obj.forEach(function (item) { - included = included || _.eql(item, val); + included = included || isEql(item, val); }); } else { included = obj.has(val); @@ -522,7 +522,7 @@ function include (val, msg) { case 'array': if (isDeep) { included = obj.some(function (item) { - return _.eql(item, val); + return isEql(item, val); }) } else { included = obj.indexOf(val) !== -1; @@ -1094,8 +1094,9 @@ Assertion.addMethod('eq', assertEqual); function assertEql(obj, msg) { if (msg) flag(this, 'message', msg); + var eql = flag(this, 'eql'); this.assert( - _.eql(obj, flag(this, 'object')) + eql(obj, flag(this, 'object')) , 'expected #{this} to deeply equal #{exp}' , 'expected #{this} to not deeply equal #{exp}' , obj @@ -1863,7 +1864,8 @@ function assertProperty (name, val, msg) { var isDeep = flag(this, 'deep') , negate = flag(this, 'negate') , pathInfo = isNested ? _.getPathInfo(obj, name) : null - , value = isNested ? pathInfo.value : obj[name]; + , value = isNested ? pathInfo.value : obj[name] + , isEql = isDeep ? flag(this, 'eql') : (val1, val2) => val1 === val2; var descriptor = ''; if (isDeep) descriptor += 'deep '; @@ -1890,7 +1892,7 @@ function assertProperty (name, val, msg) { if (arguments.length > 1) { this.assert( - hasProperty && (isDeep ? _.eql(val, value) : val === value) + hasProperty && isEql(val, value) , 'expected #{this} to have ' + descriptor + _.inspect(name) + ' of #{exp}, but got #{act}' , 'expected #{this} to not have ' + descriptor + _.inspect(name) + ' of #{act}' , val @@ -2038,9 +2040,10 @@ function assertOwnPropertyDescriptor (name, descriptor, msg) { if (msg) flag(this, 'message', msg); var obj = flag(this, 'object'); var actualDescriptor = Object.getOwnPropertyDescriptor(Object(obj), name); + var eql = flag(this, 'eql'); if (actualDescriptor && descriptor) { this.assert( - _.eql(descriptor, actualDescriptor) + eql(descriptor, actualDescriptor) , 'expected the own property descriptor for ' + _.inspect(name) + ' on #{this} to match ' + _.inspect(descriptor) + ', got ' + _.inspect(actualDescriptor) , 'expected the own property descriptor for ' + _.inspect(name) + ' on #{this} to not match ' + _.inspect(descriptor) , descriptor @@ -2394,7 +2397,8 @@ function assertKeys (keys) { var len = keys.length , any = flag(this, 'any') , all = flag(this, 'all') - , expected = keys; + , expected = keys + , isEql = isDeep ? flag(this, 'eql') : (val1, val2) => val1 === val2; if (!any && !all) { all = true; @@ -2404,11 +2408,7 @@ function assertKeys (keys) { if (any) { ok = expected.some(function(expectedKey) { return actual.some(function(actualKey) { - if (isDeep) { - return _.eql(expectedKey, actualKey); - } else { - return expectedKey === actualKey; - } + return isEql(expectedKey, actualKey); }); }); } @@ -2417,11 +2417,7 @@ function assertKeys (keys) { if (all) { ok = expected.every(function(expectedKey) { return actual.some(function(actualKey) { - if (isDeep) { - return _.eql(expectedKey, actualKey); - } else { - return expectedKey === actualKey; - } + return isEql(expectedKey, actualKey); }); }); @@ -3109,7 +3105,7 @@ Assertion.addMethod('members', function (subset, msg) { failNegateMsg = 'expected #{this} to not have the same ' + subject + ' as #{exp}'; } - var cmp = flag(this, 'deep') ? _.eql : undefined; + var cmp = flag(this, 'deep') ? flag(this, 'eql') : undefined; this.assert( isSubsetOf(subset, obj, cmp, contains, ordered) @@ -3165,7 +3161,8 @@ function oneOf (list, msg) { , flagMsg = flag(this, 'message') , ssfi = flag(this, 'ssfi') , contains = flag(this, 'contains') - , isDeep = flag(this, 'deep'); + , isDeep = flag(this, 'deep') + , eql = flag(this, 'eql'); new Assertion(list, flagMsg, ssfi, true).to.be.an('array'); if (contains) { @@ -3179,7 +3176,7 @@ function oneOf (list, msg) { } else { if (isDeep) { this.assert( - list.some(function(possibility) { return _.eql(expected, possibility) }) + list.some(function(possibility) { return eql(expected, possibility) }) , 'expected #{this} to deeply equal one of #{exp}' , 'expected #{this} to deeply equal one of #{exp}' , list diff --git a/package-lock.json b/package-lock.json index 8e697ec8..de37cb46 100644 --- a/package-lock.json +++ b/package-lock.json @@ -482,15 +482,6 @@ } } }, - "node_modules/@tootallnate/once": { - "version": "1.1.2", - "resolved": "https://registry.npmjs.org/@tootallnate/once/-/once-1.1.2.tgz", - "integrity": "sha512-RbzJvlNzmRq5c3O09UipeuXno4tA1FE6ikOjxZK0tuxVv3412l64l5t1W5pj4+rJq9vpkm/kwiR07aZXnsKPxw==", - "dev": true, - "engines": { - "node": ">= 6" - } - }, "node_modules/@tootallnate/quickjs-emscripten": { "version": "0.23.0", "resolved": "https://registry.npmjs.org/@tootallnate/quickjs-emscripten/-/quickjs-emscripten-0.23.0.tgz", @@ -1297,12 +1288,6 @@ "node": ">=16.0.0" } }, - 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"node_modules/uglify-js": { - "version": "3.17.4", - "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.17.4.tgz", - "integrity": "sha512-T9q82TJI9e/C1TAxYvfb16xO120tMVFZrGA3f9/P4424DNu6ypK103y0GPFVa17yotwSyZW5iYXgjYHkGrJW/g==", - "dev": true, - "optional": true, - "bin": { - "uglifyjs": "bin/uglifyjs" - }, - "engines": { - "node": ">=0.8.0" - } - }, "node_modules/unbzip2-stream": { "version": "1.4.3", "resolved": "https://registry.npmjs.org/unbzip2-stream/-/unbzip2-stream-1.4.3.tgz", @@ -5307,24 +4781,6 @@ "node": ">= 0.8" } }, - "node_modules/urlgrey": { - "version": "1.0.0", - "resolved": "https://registry.npmjs.org/urlgrey/-/urlgrey-1.0.0.tgz", - "integrity": "sha512-hJfIzMPJmI9IlLkby8QrsCykQ+SXDeO2W5Q9QTW3QpqZVTx4a/K7p8/5q+/isD8vsbVaFgql/gvAoQCRQ2Cb5w==", - "dev": true, - "dependencies": { - "fast-url-parser": "^1.1.3" - } - }, - "node_modules/uuid": { - "version": "8.3.2", - "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz", - "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==", - "dev": true, - "bin": { - "uuid": "dist/bin/uuid" - } - }, "node_modules/v8-to-istanbul": { "version": "9.1.3", "resolved": "https://registry.npmjs.org/v8-to-istanbul/-/v8-to-istanbul-9.1.3.tgz", @@ -5364,18 +4820,6 @@ "webidl-conversions": "^3.0.0" } }, - "node_modules/which": { - "version": "1.3.1", - "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz", - "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==", - "dev": true, - "dependencies": { - "isexe": "^2.0.0" - }, - "bin": { - "which": "bin/which" - } - }, "node_modules/wide-align": { "version": "1.1.3", "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.3.tgz", @@ -5385,21 +4829,6 @@ "string-width": "^1.0.2 || 2" } }, - "node_modules/word-wrap": { - "version": "1.2.3", - "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz", - "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==", - "dev": true, - "engines": { - "node": ">=0.10.0" - } - }, - "node_modules/wordwrap": { - "version": "1.0.0", - "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz", - "integrity": "sha512-gvVzJFlPycKc5dZN4yPkP8w7Dc37BtP1yczEneOb4uq34pXZcvrtRTmWV8W+Ume+XCxKgbjM+nevkyFPMybd4Q==", - "dev": true - }, "node_modules/wordwrapjs": { "version": "5.1.0", "resolved": "https://registry.npmjs.org/wordwrapjs/-/wordwrapjs-5.1.0.tgz", diff --git a/test/configuration.js b/test/configuration.js index a6555f78..09e1b498 100644 --- a/test/configuration.js +++ b/test/configuration.js @@ -815,4 +815,23 @@ describe('configuration', function () { } }); }); + + describe('deepEqual', function() { + it('should use custom deepEqual function for deepEqual comparison', function(){ + chai.config.deepEqual = (expected, actual) => { + return chai.util.eql(expected, actual, { + comparator: (expected, actual) => { + // for non number comparison, use the default behavior + if(typeof expected !== 'number') return null; + // allow a difference of 10 between compared numbers + return typeof actual === 'number' && Math.abs(actual - expected) < 10 + } + }) + }; + assert.deepEqual({v: 1}, {v: 10}); + err(function() { + assert.deepEqual({v: 1}, {v: 100}); + }, "expected { v: 1 } to deeply equal { v: 100 }"); + }) + }) });