436 lines
12 KiB
JavaScript
436 lines
12 KiB
JavaScript
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'use strict';
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var matcherUtils = _interopRequireWildcard(require('jest-matcher-utils'));
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var _utils = require('./utils');
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var _matchers = _interopRequireDefault(require('./matchers'));
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var _spyMatchers = _interopRequireDefault(require('./spyMatchers'));
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var _toThrowMatchers = _interopRequireWildcard(require('./toThrowMatchers'));
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var _jasmineUtils = require('./jasmineUtils');
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var _asymmetricMatchers = require('./asymmetricMatchers');
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var _jestMatchersObject = require('./jestMatchersObject');
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var _extractExpectedAssertionsErrors = _interopRequireDefault(
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require('./extractExpectedAssertionsErrors')
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);
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function _interopRequireDefault(obj) {
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return obj && obj.__esModule ? obj : {default: obj};
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}
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function _interopRequireWildcard(obj) {
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if (obj && obj.__esModule) {
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return obj;
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} else {
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var newObj = {};
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if (obj != null) {
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for (var key in obj) {
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if (Object.prototype.hasOwnProperty.call(obj, key)) {
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var desc =
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Object.defineProperty && Object.getOwnPropertyDescriptor
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? Object.getOwnPropertyDescriptor(obj, key)
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: {};
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if (desc.get || desc.set) {
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Object.defineProperty(newObj, key, desc);
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} else {
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newObj[key] = obj[key];
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}
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}
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}
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}
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newObj.default = obj;
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return newObj;
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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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function _objectSpread(target) {
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for (var i = 1; i < arguments.length; i++) {
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var source = arguments[i] != null ? arguments[i] : {};
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var ownKeys = Object.keys(source);
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if (typeof Object.getOwnPropertySymbols === 'function') {
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ownKeys = ownKeys.concat(
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Object.getOwnPropertySymbols(source).filter(function(sym) {
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return Object.getOwnPropertyDescriptor(source, sym).enumerable;
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})
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);
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}
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ownKeys.forEach(function(key) {
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_defineProperty(target, key, source[key]);
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});
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}
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return target;
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}
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var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
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var Promise = global[Symbol.for('jest-native-promise')] || global.Promise;
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function _defineProperty(obj, key, value) {
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if (key in obj) {
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Object.defineProperty(obj, key, {
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value: value,
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enumerable: true,
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configurable: true,
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writable: true
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});
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} else {
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obj[key] = value;
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}
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return obj;
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}
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class JestAssertionError extends Error {
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constructor(...args) {
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super(...args);
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_defineProperty(this, 'matcherResult', void 0);
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}
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}
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const isPromise = obj =>
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!!obj &&
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(typeof obj === 'object' || typeof obj === 'function') &&
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typeof obj.then === 'function';
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const createToThrowErrorMatchingSnapshotMatcher = function createToThrowErrorMatchingSnapshotMatcher(
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matcher
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) {
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return function(received, testNameOrInlineSnapshot) {
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return matcher.apply(this, [received, testNameOrInlineSnapshot, true]);
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};
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};
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const getPromiseMatcher = (name, matcher) => {
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if (name === 'toThrow' || name === 'toThrowError') {
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return (0, _toThrowMatchers.createMatcher)(name, true);
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} else if (
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name === 'toThrowErrorMatchingSnapshot' ||
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name === 'toThrowErrorMatchingInlineSnapshot'
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) {
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return createToThrowErrorMatchingSnapshotMatcher(matcher);
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}
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return null;
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};
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const expect = (actual, ...rest) => {
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if (rest.length !== 0) {
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throw new Error('Expect takes at most one argument.');
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}
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const allMatchers = (0, _jestMatchersObject.getMatchers)();
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const expectation = {
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not: {},
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rejects: {
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not: {}
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},
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resolves: {
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not: {}
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}
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};
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const err = new JestAssertionError();
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Object.keys(allMatchers).forEach(name => {
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const matcher = allMatchers[name];
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const promiseMatcher = getPromiseMatcher(name, matcher) || matcher;
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expectation[name] = makeThrowingMatcher(matcher, false, '', actual);
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expectation.not[name] = makeThrowingMatcher(matcher, true, '', actual);
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expectation.resolves[name] = makeResolveMatcher(
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name,
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promiseMatcher,
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false,
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actual,
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err
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);
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expectation.resolves.not[name] = makeResolveMatcher(
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name,
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promiseMatcher,
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true,
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actual,
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err
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);
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expectation.rejects[name] = makeRejectMatcher(
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name,
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promiseMatcher,
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false,
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actual,
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err
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);
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expectation.rejects.not[name] = makeRejectMatcher(
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name,
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promiseMatcher,
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true,
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actual,
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err
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);
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});
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return expectation;
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};
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const getMessage = message =>
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(message && message()) ||
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matcherUtils.RECEIVED_COLOR('No message was specified for this matcher.');
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const makeResolveMatcher = (matcherName, matcher, isNot, actual, outerErr) => (
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...args
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) => {
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const options = {
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isNot,
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promise: 'resolves'
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};
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if (!isPromise(actual)) {
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throw new JestAssertionError(
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matcherUtils.matcherErrorMessage(
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matcherUtils.matcherHint(matcherName, undefined, '', options),
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`${matcherUtils.RECEIVED_COLOR('received')} value must be a promise`,
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matcherUtils.printWithType(
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'Received',
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actual,
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matcherUtils.printReceived
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)
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)
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);
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}
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const innerErr = new JestAssertionError();
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return actual.then(
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result =>
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makeThrowingMatcher(matcher, isNot, 'resolves', result, innerErr).apply(
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null,
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args
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),
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reason => {
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outerErr.message =
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matcherUtils.matcherHint(matcherName, undefined, '', options) +
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'\n\n' +
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`Received promise rejected instead of resolved\n` +
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`Rejected to value: ${matcherUtils.printReceived(reason)}`;
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return Promise.reject(outerErr);
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}
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);
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};
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const makeRejectMatcher = (matcherName, matcher, isNot, actual, outerErr) => (
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...args
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) => {
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const options = {
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isNot,
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promise: 'rejects'
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};
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if (!isPromise(actual)) {
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throw new JestAssertionError(
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matcherUtils.matcherErrorMessage(
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matcherUtils.matcherHint(matcherName, undefined, '', options),
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`${matcherUtils.RECEIVED_COLOR('received')} value must be a promise`,
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matcherUtils.printWithType(
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'Received',
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actual,
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matcherUtils.printReceived
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)
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)
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);
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}
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const innerErr = new JestAssertionError();
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return actual.then(
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result => {
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outerErr.message =
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matcherUtils.matcherHint(matcherName, undefined, '', options) +
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'\n\n' +
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`Received promise resolved instead of rejected\n` +
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`Resolved to value: ${matcherUtils.printReceived(result)}`;
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return Promise.reject(outerErr);
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},
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reason =>
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makeThrowingMatcher(matcher, isNot, 'rejects', reason, innerErr).apply(
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null,
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args
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)
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);
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};
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const makeThrowingMatcher = (matcher, isNot, promise, actual, err) =>
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function throwingMatcher(...args) {
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let throws = true;
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const utils = _objectSpread({}, matcherUtils, {
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iterableEquality: _utils.iterableEquality,
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subsetEquality: _utils.subsetEquality
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});
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const matcherContext = _objectSpread(
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{
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// When throws is disabled, the matcher will not throw errors during test
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// execution but instead add them to the global matcher state. If a
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// matcher throws, test execution is normally stopped immediately. The
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// snapshot matcher uses it because we want to log all snapshot
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// failures in a test.
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dontThrow: () => (throws = false)
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},
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(0, _jestMatchersObject.getState)(),
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{
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equals: _jasmineUtils.equals,
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error: err,
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isNot,
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promise,
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utils
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}
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);
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const processResult = (result, asyncError) => {
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_validateResult(result);
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(0, _jestMatchersObject.getState)().assertionCalls++;
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if ((result.pass && isNot) || (!result.pass && !isNot)) {
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// XOR
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const message = getMessage(result.message);
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let error;
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if (err) {
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error = err;
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error.message = message;
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} else if (asyncError) {
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error = asyncError;
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error.message = message;
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} else {
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error = new JestAssertionError(message); // Try to remove this function from the stack trace frame.
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// Guard for some environments (browsers) that do not support this feature.
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if (Error.captureStackTrace) {
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Error.captureStackTrace(error, throwingMatcher);
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}
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} // Passing the result of the matcher with the error so that a custom
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// reporter could access the actual and expected objects of the result
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// for example in order to display a custom visual diff
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error.matcherResult = result;
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if (throws) {
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throw error;
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} else {
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(0, _jestMatchersObject.getState)().suppressedErrors.push(error);
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}
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}
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};
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const handlError = error => {
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if (
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matcher[_jestMatchersObject.INTERNAL_MATCHER_FLAG] === true &&
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!(error instanceof JestAssertionError) &&
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error.name !== 'PrettyFormatPluginError' && // Guard for some environments (browsers) that do not support this feature.
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Error.captureStackTrace
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) {
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// Try to remove this and deeper functions from the stack trace frame.
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Error.captureStackTrace(error, throwingMatcher);
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}
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throw error;
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};
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let potentialResult;
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try {
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potentialResult = matcher.call(matcherContext, actual, ...args);
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if (isPromise(potentialResult)) {
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const asyncResult = potentialResult;
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const asyncError = new JestAssertionError();
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if (Error.captureStackTrace) {
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Error.captureStackTrace(asyncError, throwingMatcher);
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}
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return asyncResult
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.then(aResult => processResult(aResult, asyncError))
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.catch(error => handlError(error));
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} else {
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const syncResult = potentialResult;
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return processResult(syncResult);
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}
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} catch (error) {
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return handlError(error);
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}
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};
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expect.extend = matchers =>
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(0, _jestMatchersObject.setMatchers)(matchers, false, expect);
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expect.anything = _asymmetricMatchers.anything;
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expect.any = _asymmetricMatchers.any;
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expect.not = {
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arrayContaining: _asymmetricMatchers.arrayNotContaining,
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objectContaining: _asymmetricMatchers.objectNotContaining,
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stringContaining: _asymmetricMatchers.stringNotContaining,
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stringMatching: _asymmetricMatchers.stringNotMatching
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};
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expect.objectContaining = _asymmetricMatchers.objectContaining;
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expect.arrayContaining = _asymmetricMatchers.arrayContaining;
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expect.stringContaining = _asymmetricMatchers.stringContaining;
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expect.stringMatching = _asymmetricMatchers.stringMatching;
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const _validateResult = result => {
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if (
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typeof result !== 'object' ||
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typeof result.pass !== 'boolean' ||
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(result.message &&
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typeof result.message !== 'string' &&
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typeof result.message !== 'function')
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) {
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throw new Error(
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'Unexpected return from a matcher function.\n' +
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'Matcher functions should ' +
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'return an object in the following format:\n' +
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' {message?: string | function, pass: boolean}\n' +
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`'${matcherUtils.stringify(result)}' was returned`
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);
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}
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};
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function assertions(expected) {
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const error = new Error();
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if (Error.captureStackTrace) {
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Error.captureStackTrace(error, assertions);
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}
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|
|
(0, _jestMatchersObject.getState)().expectedAssertionsNumber = expected;
|
||
|
|
(0, _jestMatchersObject.getState)().expectedAssertionsNumberError = error;
|
||
|
|
}
|
||
|
|
|
||
|
|
function hasAssertions(...args) {
|
||
|
|
const error = new Error();
|
||
|
|
|
||
|
|
if (Error.captureStackTrace) {
|
||
|
|
Error.captureStackTrace(error, hasAssertions);
|
||
|
|
}
|
||
|
|
|
||
|
|
matcherUtils.ensureNoExpected(args[0], '.hasAssertions');
|
||
|
|
(0, _jestMatchersObject.getState)().isExpectingAssertions = true;
|
||
|
|
(0, _jestMatchersObject.getState)().isExpectingAssertionsError = error;
|
||
|
|
} // add default jest matchers
|
||
|
|
|
||
|
|
(0, _jestMatchersObject.setMatchers)(_matchers.default, true, expect);
|
||
|
|
(0, _jestMatchersObject.setMatchers)(_spyMatchers.default, true, expect);
|
||
|
|
(0, _jestMatchersObject.setMatchers)(_toThrowMatchers.default, true, expect);
|
||
|
|
|
||
|
|
expect.addSnapshotSerializer = () => void 0;
|
||
|
|
|
||
|
|
expect.assertions = assertions;
|
||
|
|
expect.hasAssertions = hasAssertions;
|
||
|
|
expect.getState = _jestMatchersObject.getState;
|
||
|
|
expect.setState = _jestMatchersObject.setState;
|
||
|
|
expect.extractExpectedAssertionsErrors =
|
||
|
|
_extractExpectedAssertionsErrors.default;
|
||
|
|
const expectExport = expect; // eslint-disable-next-line no-redeclare
|
||
|
|
|
||
|
|
module.exports = expectExport;
|