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458 lines
12 KiB
458 lines
12 KiB
'use strict'; |
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Object.defineProperty(exports, '__esModule', { |
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value: true |
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}); |
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exports.arrayBufferEquality = void 0; |
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exports.emptyObject = emptyObject; |
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exports.typeEquality = |
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exports.subsetEquality = |
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exports.sparseArrayEquality = |
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exports.pathAsArray = |
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exports.partition = |
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exports.iterableEquality = |
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exports.isOneline = |
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exports.isError = |
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exports.getPath = |
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exports.getObjectSubset = |
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void 0; |
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var _jestGetType = require('jest-get-type'); |
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var _jasmineUtils = require('./jasmineUtils'); |
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var global = (function () { |
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if (typeof globalThis !== 'undefined') { |
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return globalThis; |
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} else if (typeof global !== 'undefined') { |
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return global; |
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} else if (typeof self !== 'undefined') { |
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return self; |
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} else if (typeof window !== 'undefined') { |
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return window; |
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} else { |
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return Function('return this')(); |
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} |
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})(); |
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var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol; |
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/** |
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* Checks if `hasOwnProperty(object, key)` up the prototype chain, stopping at `Object.prototype`. |
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*/ |
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const hasPropertyInObject = (object, key) => { |
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const shouldTerminate = |
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!object || typeof object !== 'object' || object === Object.prototype; |
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if (shouldTerminate) { |
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return false; |
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} |
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return ( |
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Object.prototype.hasOwnProperty.call(object, key) || |
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hasPropertyInObject(Object.getPrototypeOf(object), key) |
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); |
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}; |
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const getPath = (object, propertyPath) => { |
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if (!Array.isArray(propertyPath)) { |
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propertyPath = pathAsArray(propertyPath); |
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} |
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if (propertyPath.length) { |
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const lastProp = propertyPath.length === 1; |
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const prop = propertyPath[0]; |
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const newObject = object[prop]; |
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if (!lastProp && (newObject === null || newObject === undefined)) { |
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// This is not the last prop in the chain. If we keep recursing it will |
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// hit a `can't access property X of undefined | null`. At this point we |
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// know that the chain has broken and we can return right away. |
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return { |
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hasEndProp: false, |
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lastTraversedObject: object, |
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traversedPath: [] |
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}; |
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} |
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const result = getPath(newObject, propertyPath.slice(1)); |
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if (result.lastTraversedObject === null) { |
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result.lastTraversedObject = object; |
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} |
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result.traversedPath.unshift(prop); |
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if (lastProp) { |
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// Does object have the property with an undefined value? |
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// Although primitive values support bracket notation (above) |
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// they would throw TypeError for in operator (below). |
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result.hasEndProp = |
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newObject !== undefined || |
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(!(0, _jestGetType.isPrimitive)(object) && prop in object); |
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if (!result.hasEndProp) { |
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result.traversedPath.shift(); |
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} |
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} |
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return result; |
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} |
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return { |
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lastTraversedObject: null, |
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traversedPath: [], |
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value: object |
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}; |
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}; // Strip properties from object that are not present in the subset. Useful for |
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// printing the diff for toMatchObject() without adding unrelated noise. |
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/* eslint-disable @typescript-eslint/explicit-module-boundary-types */ |
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exports.getPath = getPath; |
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const getObjectSubset = (object, subset, seenReferences = new WeakMap()) => { |
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/* eslint-enable @typescript-eslint/explicit-module-boundary-types */ |
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if (Array.isArray(object)) { |
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if (Array.isArray(subset) && subset.length === object.length) { |
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// The map method returns correct subclass of subset. |
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return subset.map((sub, i) => getObjectSubset(object[i], sub)); |
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} |
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} else if (object instanceof Date) { |
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return object; |
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} else if (isObject(object) && isObject(subset)) { |
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if ( |
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(0, _jasmineUtils.equals)(object, subset, [ |
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iterableEquality, |
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subsetEquality |
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]) |
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) { |
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// Avoid unnecessary copy which might return Object instead of subclass. |
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return subset; |
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} |
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const trimmed = {}; |
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seenReferences.set(object, trimmed); |
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Object.keys(object) |
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.filter(key => hasPropertyInObject(subset, key)) |
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.forEach(key => { |
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trimmed[key] = seenReferences.has(object[key]) |
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? seenReferences.get(object[key]) |
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: getObjectSubset(object[key], subset[key], seenReferences); |
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}); |
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if (Object.keys(trimmed).length > 0) { |
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return trimmed; |
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} |
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} |
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return object; |
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}; |
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exports.getObjectSubset = getObjectSubset; |
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const IteratorSymbol = Symbol.iterator; |
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const hasIterator = object => !!(object != null && object[IteratorSymbol]); |
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/* eslint-disable @typescript-eslint/explicit-module-boundary-types */ |
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const iterableEquality = ( |
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a, |
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b, |
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/* eslint-enable @typescript-eslint/explicit-module-boundary-types */ |
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aStack = [], |
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bStack = [] |
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) => { |
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if ( |
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typeof a !== 'object' || |
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typeof b !== 'object' || |
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Array.isArray(a) || |
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Array.isArray(b) || |
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!hasIterator(a) || |
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!hasIterator(b) |
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) { |
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return undefined; |
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} |
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if (a.constructor !== b.constructor) { |
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return false; |
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} |
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let 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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// circular references at same depth are equal |
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// circular reference is not equal to non-circular one |
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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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aStack.push(a); |
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bStack.push(b); |
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const iterableEqualityWithStack = (a, b) => |
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iterableEquality(a, b, [...aStack], [...bStack]); |
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if (a.size !== undefined) { |
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if (a.size !== b.size) { |
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return false; |
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} else if ( |
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(0, _jasmineUtils.isA)('Set', a) || |
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(0, _jasmineUtils.isImmutableUnorderedSet)(a) |
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) { |
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let allFound = true; |
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for (const aValue of a) { |
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if (!b.has(aValue)) { |
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let has = false; |
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for (const bValue of b) { |
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const isEqual = (0, _jasmineUtils.equals)(aValue, bValue, [ |
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iterableEqualityWithStack |
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]); |
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if (isEqual === true) { |
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has = true; |
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} |
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} |
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if (has === false) { |
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allFound = false; |
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break; |
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} |
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} |
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} // Remove the first value from the stack of traversed values. |
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aStack.pop(); |
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bStack.pop(); |
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return allFound; |
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} else if ( |
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(0, _jasmineUtils.isA)('Map', a) || |
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(0, _jasmineUtils.isImmutableUnorderedKeyed)(a) |
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) { |
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let allFound = true; |
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for (const aEntry of a) { |
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if ( |
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!b.has(aEntry[0]) || |
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!(0, _jasmineUtils.equals)(aEntry[1], b.get(aEntry[0]), [ |
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iterableEqualityWithStack |
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]) |
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) { |
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let has = false; |
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for (const bEntry of b) { |
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const matchedKey = (0, _jasmineUtils.equals)(aEntry[0], bEntry[0], [ |
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iterableEqualityWithStack |
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]); |
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let matchedValue = false; |
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if (matchedKey === true) { |
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matchedValue = (0, _jasmineUtils.equals)(aEntry[1], bEntry[1], [ |
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iterableEqualityWithStack |
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]); |
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} |
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if (matchedValue === true) { |
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has = true; |
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} |
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} |
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if (has === false) { |
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allFound = false; |
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break; |
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} |
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} |
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} // Remove the first value from the stack of traversed values. |
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aStack.pop(); |
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bStack.pop(); |
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return allFound; |
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} |
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} |
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const bIterator = b[IteratorSymbol](); |
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for (const aValue of a) { |
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const nextB = bIterator.next(); |
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if ( |
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nextB.done || |
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!(0, _jasmineUtils.equals)(aValue, nextB.value, [ |
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iterableEqualityWithStack |
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]) |
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) { |
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return false; |
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} |
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} |
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if (!bIterator.next().done) { |
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return false; |
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} // Remove the first value from the stack of traversed values. |
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aStack.pop(); |
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bStack.pop(); |
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return true; |
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}; |
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exports.iterableEquality = iterableEquality; |
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const isObject = a => a !== null && typeof a === 'object'; |
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const isObjectWithKeys = a => |
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isObject(a) && |
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!(a instanceof Error) && |
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!(a instanceof Array) && |
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!(a instanceof Date); |
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const subsetEquality = (object, subset) => { |
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// subsetEquality needs to keep track of the references |
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// it has already visited to avoid infinite loops in case |
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// there are circular references in the subset passed to it. |
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const subsetEqualityWithContext = |
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(seenReferences = new WeakMap()) => |
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(object, subset) => { |
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if (!isObjectWithKeys(subset)) { |
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return undefined; |
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} |
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return Object.keys(subset).every(key => { |
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if (isObjectWithKeys(subset[key])) { |
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if (seenReferences.has(subset[key])) { |
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return (0, _jasmineUtils.equals)(object[key], subset[key], [ |
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iterableEquality |
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]); |
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} |
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seenReferences.set(subset[key], true); |
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} |
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const result = |
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object != null && |
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hasPropertyInObject(object, key) && |
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(0, _jasmineUtils.equals)(object[key], subset[key], [ |
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iterableEquality, |
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subsetEqualityWithContext(seenReferences) |
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]); // The main goal of using seenReference is to avoid circular node on tree. |
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// It will only happen within a parent and its child, not a node and nodes next to it (same level) |
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// We should keep the reference for a parent and its child only |
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// Thus we should delete the reference immediately so that it doesn't interfere |
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// other nodes within the same level on tree. |
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seenReferences.delete(subset[key]); |
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return result; |
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}); |
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}; |
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return subsetEqualityWithContext()(object, subset); |
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}; // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types |
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exports.subsetEquality = subsetEquality; |
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const typeEquality = (a, b) => { |
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if (a == null || b == null || a.constructor === b.constructor) { |
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return undefined; |
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} |
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return false; |
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}; |
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exports.typeEquality = typeEquality; |
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const arrayBufferEquality = (a, b) => { |
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if (!(a instanceof ArrayBuffer) || !(b instanceof ArrayBuffer)) { |
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return undefined; |
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} |
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const dataViewA = new DataView(a); |
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const dataViewB = new DataView(b); // Buffers are not equal when they do not have the same byte length |
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if (dataViewA.byteLength !== dataViewB.byteLength) { |
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return false; |
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} // Check if every byte value is equal to each other |
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for (let i = 0; i < dataViewA.byteLength; i++) { |
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if (dataViewA.getUint8(i) !== dataViewB.getUint8(i)) { |
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return false; |
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} |
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} |
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return true; |
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}; |
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exports.arrayBufferEquality = arrayBufferEquality; |
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const sparseArrayEquality = (a, b) => { |
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if (!Array.isArray(a) || !Array.isArray(b)) { |
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return undefined; |
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} // A sparse array [, , 1] will have keys ["2"] whereas [undefined, undefined, 1] will have keys ["0", "1", "2"] |
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const aKeys = Object.keys(a); |
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const bKeys = Object.keys(b); |
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return ( |
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(0, _jasmineUtils.equals)(a, b, [iterableEquality, typeEquality], true) && |
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(0, _jasmineUtils.equals)(aKeys, bKeys) |
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); |
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}; |
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exports.sparseArrayEquality = sparseArrayEquality; |
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const partition = (items, predicate) => { |
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const result = [[], []]; |
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items.forEach(item => result[predicate(item) ? 0 : 1].push(item)); |
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return result; |
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}; |
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exports.partition = partition; |
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const pathAsArray = propertyPath => { |
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const properties = []; |
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if (propertyPath === '') { |
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properties.push(''); |
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return properties; |
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} // will match everything that's not a dot or a bracket, and "" for consecutive dots. |
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const pattern = RegExp('[^.[\\]]+|(?=(?:\\.)(?:\\.|$))', 'g'); // Because the regex won't match a dot in the beginning of the path, if present. |
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if (propertyPath[0] === '.') { |
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properties.push(''); |
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} |
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propertyPath.replace(pattern, match => { |
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properties.push(match); |
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return match; |
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}); |
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return properties; |
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}; // Copied from https://github.com/graingert/angular.js/blob/a43574052e9775cbc1d7dd8a086752c979b0f020/src/Angular.js#L685-L693 |
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exports.pathAsArray = pathAsArray; |
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const isError = value => { |
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switch (Object.prototype.toString.call(value)) { |
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case '[object Error]': |
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case '[object Exception]': |
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case '[object DOMException]': |
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return true; |
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default: |
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return value instanceof Error; |
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} |
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}; |
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exports.isError = isError; |
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function emptyObject(obj) { |
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return obj && typeof obj === 'object' ? !Object.keys(obj).length : false; |
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} |
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const MULTILINE_REGEXP = /[\r\n]/; |
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const isOneline = (expected, received) => |
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typeof expected === 'string' && |
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typeof received === 'string' && |
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(!MULTILINE_REGEXP.test(expected) || !MULTILINE_REGEXP.test(received)); |
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exports.isOneline = isOneline;
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