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- 'use strict';
- Object.defineProperty(exports, '__esModule', {
- value: true
- });
- Object.defineProperty(exports, 'DIFF_DELETE', {
- enumerable: true,
- get: function () {
- return _cleanupSemantic.DIFF_DELETE;
- }
- });
- Object.defineProperty(exports, 'DIFF_EQUAL', {
- enumerable: true,
- get: function () {
- return _cleanupSemantic.DIFF_EQUAL;
- }
- });
- Object.defineProperty(exports, 'DIFF_INSERT', {
- enumerable: true,
- get: function () {
- return _cleanupSemantic.DIFF_INSERT;
- }
- });
- Object.defineProperty(exports, 'Diff', {
- enumerable: true,
- get: function () {
- return _cleanupSemantic.Diff;
- }
- });
- exports.diff = diff;
- Object.defineProperty(exports, 'diffLinesRaw', {
- enumerable: true,
- get: function () {
- return _diffLines.diffLinesRaw;
- }
- });
- Object.defineProperty(exports, 'diffLinesUnified', {
- enumerable: true,
- get: function () {
- return _diffLines.diffLinesUnified;
- }
- });
- Object.defineProperty(exports, 'diffLinesUnified2', {
- enumerable: true,
- get: function () {
- return _diffLines.diffLinesUnified2;
- }
- });
- Object.defineProperty(exports, 'diffStringsRaw', {
- enumerable: true,
- get: function () {
- return _printDiffs.diffStringsRaw;
- }
- });
- Object.defineProperty(exports, 'diffStringsUnified', {
- enumerable: true,
- get: function () {
- return _printDiffs.diffStringsUnified;
- }
- });
- var _chalk = _interopRequireDefault(require('chalk'));
- var _jestGetType = require('jest-get-type');
- var _prettyFormat = require('pretty-format');
- var _cleanupSemantic = require('./cleanupSemantic');
- var _constants = require('./constants');
- var _diffLines = require('./diffLines');
- var _normalizeDiffOptions = require('./normalizeDiffOptions');
- var _printDiffs = require('./printDiffs');
- function _interopRequireDefault(obj) {
- return obj && obj.__esModule ? obj : {default: obj};
- }
- var global = (function () {
- if (typeof globalThis !== 'undefined') {
- return globalThis;
- } else if (typeof global !== 'undefined') {
- return global;
- } else if (typeof self !== 'undefined') {
- return self;
- } else if (typeof window !== 'undefined') {
- return window;
- } else {
- return Function('return this')();
- }
- })();
- var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
- const getCommonMessage = (message, options) => {
- const {commonColor} = (0, _normalizeDiffOptions.normalizeDiffOptions)(
- options
- );
- return commonColor(message);
- };
- const {
- AsymmetricMatcher,
- DOMCollection,
- DOMElement,
- Immutable,
- ReactElement,
- ReactTestComponent
- } = _prettyFormat.plugins;
- const PLUGINS = [
- ReactTestComponent,
- ReactElement,
- DOMElement,
- DOMCollection,
- Immutable,
- AsymmetricMatcher
- ];
- const FORMAT_OPTIONS = {
- plugins: PLUGINS
- };
- const FALLBACK_FORMAT_OPTIONS = {
- callToJSON: false,
- maxDepth: 10,
- plugins: PLUGINS
- }; // Generate a string that will highlight the difference between two values
- // with green and red. (similar to how github does code diffing)
- // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
- function diff(a, b, options) {
- if (Object.is(a, b)) {
- return getCommonMessage(_constants.NO_DIFF_MESSAGE, options);
- }
- const aType = (0, _jestGetType.getType)(a);
- let expectedType = aType;
- let omitDifference = false;
- if (aType === 'object' && typeof a.asymmetricMatch === 'function') {
- if (a.$$typeof !== Symbol.for('jest.asymmetricMatcher')) {
- // Do not know expected type of user-defined asymmetric matcher.
- return null;
- }
- if (typeof a.getExpectedType !== 'function') {
- // For example, expect.anything() matches either null or undefined
- return null;
- }
- expectedType = a.getExpectedType(); // Primitive types boolean and number omit difference below.
- // For example, omit difference for expect.stringMatching(regexp)
- omitDifference = expectedType === 'string';
- }
- if (expectedType !== (0, _jestGetType.getType)(b)) {
- return (
- ' Comparing two different types of values.' +
- ` Expected ${_chalk.default.green(expectedType)} but ` +
- `received ${_chalk.default.red((0, _jestGetType.getType)(b))}.`
- );
- }
- if (omitDifference) {
- return null;
- }
- switch (aType) {
- case 'string':
- return (0, _diffLines.diffLinesUnified)(
- a.split('\n'),
- b.split('\n'),
- options
- );
- case 'boolean':
- case 'number':
- return comparePrimitive(a, b, options);
- case 'map':
- return compareObjects(sortMap(a), sortMap(b), options);
- case 'set':
- return compareObjects(sortSet(a), sortSet(b), options);
- default:
- return compareObjects(a, b, options);
- }
- }
- function comparePrimitive(a, b, options) {
- const aFormat = (0, _prettyFormat.format)(a, FORMAT_OPTIONS);
- const bFormat = (0, _prettyFormat.format)(b, FORMAT_OPTIONS);
- return aFormat === bFormat
- ? getCommonMessage(_constants.NO_DIFF_MESSAGE, options)
- : (0, _diffLines.diffLinesUnified)(
- aFormat.split('\n'),
- bFormat.split('\n'),
- options
- );
- }
- function sortMap(map) {
- return new Map(Array.from(map.entries()).sort());
- }
- function sortSet(set) {
- return new Set(Array.from(set.values()).sort());
- }
- function compareObjects(a, b, options) {
- let difference;
- let hasThrown = false;
- try {
- const formatOptions = getFormatOptions(FORMAT_OPTIONS, options);
- difference = getObjectsDifference(a, b, formatOptions, options);
- } catch {
- hasThrown = true;
- }
- const noDiffMessage = getCommonMessage(_constants.NO_DIFF_MESSAGE, options); // If the comparison yields no results, compare again but this time
- // without calling `toJSON`. It's also possible that toJSON might throw.
- if (difference === undefined || difference === noDiffMessage) {
- const formatOptions = getFormatOptions(FALLBACK_FORMAT_OPTIONS, options);
- difference = getObjectsDifference(a, b, formatOptions, options);
- if (difference !== noDiffMessage && !hasThrown) {
- difference =
- getCommonMessage(_constants.SIMILAR_MESSAGE, options) +
- '\n\n' +
- difference;
- }
- }
- return difference;
- }
- function getFormatOptions(formatOptions, options) {
- const {compareKeys} = (0, _normalizeDiffOptions.normalizeDiffOptions)(
- options
- );
- return {...formatOptions, compareKeys};
- }
- function getObjectsDifference(a, b, formatOptions, options) {
- const formatOptionsZeroIndent = {...formatOptions, indent: 0};
- const aCompare = (0, _prettyFormat.format)(a, formatOptionsZeroIndent);
- const bCompare = (0, _prettyFormat.format)(b, formatOptionsZeroIndent);
- if (aCompare === bCompare) {
- return getCommonMessage(_constants.NO_DIFF_MESSAGE, options);
- } else {
- const aDisplay = (0, _prettyFormat.format)(a, formatOptions);
- const bDisplay = (0, _prettyFormat.format)(b, formatOptions);
- return (0, _diffLines.diffLinesUnified2)(
- aDisplay.split('\n'),
- bDisplay.split('\n'),
- aCompare.split('\n'),
- bCompare.split('\n'),
- options
- );
- }
- }
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