How to use checkIsError method in Jest

...206                                                                }207                                                            </div>208                                                            <TextField209                                                                error={210                                                                    checkIsError(errors, touched, index, true)211                                                                }212                                                                variant="standard"213                                                                margin="dense"214                                                                fullWidth215                                                                onChange={handleChange}216                                                                value={actor.name}217                                                                id={`actors.${index}.name`}218                                                                label="Name"219                                                                name={`actors.${index}.name`}220                                                                helperText={221                                                                    checkIsError(errors, touched, index, true)222                                                                }223                                                                required224                                                                color='secondary'225                                                            />226                                                            <TextField227                                                                error={228                                                                    checkIsError(errors, touched, index)229                                                                }230                                                                variant="standard"231                                                                margin="dense"232                                                                fullWidth233                                                                onChange={handleChange}234                                                                value={actor.surname}235                                                                id={`actors.${index}.surname`}236                                                                label="Surname"237                                                                name={`actors.${index}.surname`}238                                                                helperText={239                                                                    checkIsError(errors, touched, index)240                                                                }241                                                                required242                                                                color='secondary'243                                                            />244                                                        </div>245                                                    ))246                                                }247                                                <span className={classes.plusContainer}>248                                                    <AddCircle className={classes.plusIcon} onClick={() => push({ name: '', surname: '' })} />249                                                </span>250                                            </div>251                                        )}252                                    </FieldArray>253                                    <p className={classes.error}>{error}</p>...

1//Function for adding author via fetch request2$('#add_author').on('submit', async function (e) {3    e.preventDefault()4    const res = await requestToBackend($(this).attr('action'), 'POST', new FormData(this))5    if (!checkIsError(res)) {6        alertShow($('#successAlert'))7        $('.body').append(createAuthorCard(res.data))8    }9})10//Function for adding a book through a fetch request11$('#add_book').on('submit', async function (e) {12    e.preventDefault()13//Create an array for storing author IDs and put data from the form into it14    let authorsId = createAuthorIdArray($("span[name='author']"))15//Create form data variables16    let data = new FormData(this)17    data.append('authorsId', authorsId)18    console.log(data.image)19    const res = await requestToBackend($(this).attr('action'), 'POST', data)20    if(!checkIsError(res)) {21        alertShow($('#successAlert'))22        showBookCard(res.data)23    }24})25//Function to open the author edit window26$("[name='authorForm']").on('submit', function (e) {27    e.preventDefault()28    let authorNameBox = $(this).children(".authorName")29    $("input[name='authorId']").val(authorNameBox.children("input[name='id']").val())30    $("input[name='lastname']").val(authorNameBox.children("p[name='lastname']").text())31    $("input[name='name']").val(authorNameBox.children("p[name='name']").text())32    $("input[name='patronymic']").val(authorNameBox.children("p[name='patronymic']").text())33})34//Function for sending a request to edit an author35$('#edit_author').on('submit',async function (e) {36    e.preventDefault()37    const res = await requestToBackend($(this).attr('action'), 'PATCH', new FormData(this))38    if (!checkIsError(res)) {39        alertShow($('.alert-success'))40        editAuthorCard(res.data)41    }42})43//Function for sending a request to delete an author44async function deleteAuthor(btn) {45    const res = await requestToBackend($(btn).data('link'), 'DELETE')46    if(!checkIsError(res)) {47        alert('Автор удален')48        $('.author-' + res.data).remove()49    }50}51//Function of sending a request to delete a book52async function deleteBook(btn) {53    const res = await requestToBackend($(btn).data('link'), 'DELETE')54    const book = res.data55    if(!checkIsError(res)) {56        alert('Книга ' + book.title + 'удалена' )57        $(`#book-${book.title}`).remove()58    }59}60//Function for sorting authors/books61//The function takes the pressed button as a parameter62async function sort(btn) {63    const res = await requestToBackend($(btn).data('url'), 'GET')64    if (!checkIsError(res)) {65        refreshList(res.data, $(btn).data('flag'))66    }67}68//Search function for authors/books69async function search(btn) {70//Create variable request addresses71    let url = $(btn).data('url') + $('#search').val()72    const res = await requestToBackend(url, 'GET')73    if (!checkIsError(res)) {74        refreshList(res.data, $(btn).data('flag'))75    }76}77//Function on / off the search button depending on the presence of text in the search input field78$('#search').on('input', function () {79    if($(this).val()){80        $('#searchBtn').removeAttr('disabled')81    }else{82        $('#searchBtn').attr('disabled', 'disabled')83    }84})85//The function of adding an author to the list of authors when creating a new book86function addToList(select){87    let authorName = select.options[select.selectedIndex].text88    $('#authorsList').append($('<span>', {89        class: 'badge badge-light',90        text: authorName,91        value: select.value,92        name: 'author'93    }))94}95//Author card creation function96function createAuthorCard(author) {97    return $("<div class=\"card w-100 author-" + author._id + "\">\n" +98        "<div class=\"card-body\">\n" +99            "<form name=\"authorForm\">\n" +100                "<div class=\"authorCard authorName author-" + author._id + "\">\n" +101                    "<p class=\"name\" id=\"lastname\" onformdata=\"lastname\">" + author.lastname + "</p>\n" +102                    "<p class=\"name\" id=\"name\">" + author.name + "</p>\n" +103                    "<p class=\"name\" id=\"patronymic\">" + author.patronymic +"</p>\n" +104                    "<input class=\"name\" name=\"id\" readOnly type=\"hidden\" value=\"" + author._id + "\">\n" +105                "</div>\n" +106                "<div class=\"btn-group btn-card authorCard\">\n" +107                    "<button type=\"submit\" class=\"btn btn-info\" data-toggle=\"modal\" data-target=\"#editModalWindow\">\n" +108                        "Edit\n" +109                    "</button>\n" +110                    "<button type=\"button\" class=\"btn btn-danger\" onClick=\"deleteAuthor(this)\" data-link=\"/api/authors/"+ author._id +"\">\n" +111                        "Delete\n" +112                    "</button>\n" +113                "</div>\n" +114            "</form>\n" +115        "</div>\n" +116    "</div>")117}118//Book card creation function119function createBookCard(book) {120    return $(121        "<div id=\"book-"+ book.title +"\" class=\"card mb-8\" style=\"max-width: 740px;\">\n" +122            "<div class=\"row g-0\">\n" +123                "<div class=\"col-md-2\">\n" +124                    "<img class=\"book-img\" src=\"/uploads/" + book.image + "\">\n" +125                "</div>\n" +126                "<div class=\"col-md-8\">\n" +127                    "<div class=\"card-body " + book.title + "\">\n" +128                        "<h5 class=\"card-title\">" + book.title + "</h5>\n" +129                        "<p class=\"card-text\">" + book.description + "</p>\n" +130                        "<label>Авторы</label>\n" +131                    "</div>\n" +132                "</div>\n" +133                "<div class=\"col-md-2\">\n" +134                    "<div class=\"card-body\">\n" +135                        "<div class=\"btn-group btn-card\">\n" +136                            "<button type=\"button\" class=\"btn btn-danger\" onclick=\"deleteBook(this)\" data-link=\"/api/books/"+ book._id +"\">\n" +137                                "Delete\n" +138                            "</button>\n" +139                        "</div>\n" +140                    "</div>\n" +141                "</div>\n" +142            "</div>\n" +143        "</div>\n")144}145//The function of displaying authors in the book card when adding a new book146function showAuthor(authors, title) {147     return authors.forEach( (author) => {148        let authorName = '' + author.name + ' ' + author.lastname + ' ' + author.patronymic149        $(`.${title}`).append($('<span>', {150            class: 'badge badge-light',151            text: authorName152        }))153    })154}155//Author card editing function156function editAuthorCard(author) {157    $(`.author-${author._id}`).children("p[name='lastname']").text(author.lastname)158    $(`.author-${author._id}`).children("p[name='name']").text(author.name)159    $(`.author-${author._id}`).children("p[name='patronymic']").text(author.patronymic)160}161//function of updating the list of authors / books162function refreshList(array, flag) {163    164    switch (flag) {165        case 'authors' :166            $('.card').remove()167            array.forEach((author) => {168                $('.body').append(createAuthorCard(author))169            })170            break171        case 'books' :172            $('.card').remove()173            array.forEach((book) => {174                $('.body').append(createBookCard(book))175                $('.authors').append(showAuthor(book.authors, book.title))176            })177            break178    }179}180//Info message display function181function alertShow(alert) {182        alert.css('display', 'block')183        setTimeout(function(){184            alert.css('display', 'none')185        }, 3000)186}187//Function to create an array of author IDs188function createAuthorIdArray(span) {189    const authorsId = []190    span.each(function (index){191        authorsId.push($(this).attr('value'))192    })193    return authorsId194}195//The function of creating a book card196//when a response from the server about the successful addition of a book to the database197function showBookCard(book) {198    $('.body').append(createBookCard(book))199    $('.authors').append(showAuthor(book.authors, book.title))200}201//Function for request to backend202async function requestToBackend(url, method, body = null) {203    const res = {}204    await fetch(url, {205        method: method,206        body: body207    })208        .then(response => response.json())209        .then(data => res.data = data)210        .catch(e => res.e = e)211    return res212}213//Function checking for an error in response214function checkIsError(res) {215    if (res.e) {216        console.log(e)217        alertShow($('#errorAlert'))218        return true219    }...

1'use strict';2Object.defineProperty(exports, '__esModule', {3  value: true4});5exports.default = jasmineAsyncInstall;6var _co = _interopRequireDefault(require('co'));7var _isGeneratorFn = _interopRequireDefault(require('is-generator-fn'));8var _throat = _interopRequireDefault(require('throat'));9var _isError3 = _interopRequireDefault(require('./isError'));10function _interopRequireDefault(obj) {11  return obj && obj.__esModule ? obj : {default: obj};12}13var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;14var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;15var Promise = global[Symbol.for('jest-native-promise')] || global.Promise;16function isPromise(obj) {17  return obj && typeof obj.then === 'function';18}19function promisifyLifeCycleFunction(originalFn, env) {20  return function(fn, timeout) {21    if (!fn) {22      return originalFn.call(env);23    }24    const hasDoneCallback = typeof fn === 'function' && fn.length > 0;25    if (hasDoneCallback) {26      // Jasmine will handle it27      return originalFn.call(env, fn, timeout);28    }29    const extraError = new Error(); // Without this line v8 stores references to all closures30    // in the stack in the Error object. This line stringifies the stack31    // property to allow garbage-collecting objects on the stack32    // https://crbug.com/v8/714233    extraError.stack = extraError.stack; // We make *all* functions async and run `done` right away if they34    // didn't return a promise.35    const asyncJestLifecycle = function asyncJestLifecycle(done) {36      const wrappedFn = (0, _isGeneratorFn.default)(fn)37        ? _co.default.wrap(fn)38        : fn;39      const returnValue = wrappedFn.call({});40      if (isPromise(returnValue)) {41        returnValue.then(done.bind(null, null), error => {42          const _isError = (0, _isError3.default)(error),43            checkIsError = _isError.isError,44            message = _isError.message;45          if (message) {46            extraError.message = message;47          }48          done.fail(checkIsError ? error : extraError);49        });50      } else {51        done();52      }53    };54    return originalFn.call(env, asyncJestLifecycle, timeout);55  };56} // Similar to promisifyLifeCycleFunction but throws an error57// when the return value is neither a Promise nor `undefined`58function promisifyIt(originalFn, env, jasmine) {59  return function(specName, fn, timeout) {60    if (!fn) {61      const spec = originalFn.call(env, specName);62      spec.pend('not implemented');63      return spec;64    }65    const hasDoneCallback = fn.length > 0;66    if (hasDoneCallback) {67      return originalFn.call(env, specName, fn, timeout);68    }69    const extraError = new Error(); // Without this line v8 stores references to all closures70    // in the stack in the Error object. This line stringifies the stack71    // property to allow garbage-collecting objects on the stack72    // https://crbug.com/v8/714273    extraError.stack = extraError.stack;74    const asyncJestTest = function asyncJestTest(done) {75      const wrappedFn = (0, _isGeneratorFn.default)(fn)76        ? _co.default.wrap(fn)77        : fn;78      const returnValue = wrappedFn.call({});79      if (isPromise(returnValue)) {80        returnValue.then(done.bind(null, null), error => {81          const _isError2 = (0, _isError3.default)(error),82            checkIsError = _isError2.isError,83            message = _isError2.message;84          if (message) {85            extraError.message = message;86          }87          if (jasmine.Spec.isPendingSpecException(error)) {88            env.pending(message);89            done();90          } else {91            done.fail(checkIsError ? error : extraError);92          }93        });94      } else if (returnValue === undefined) {95        done();96      } else {97        done.fail(98          new Error(99            'Jest: `it` and `test` must return either a Promise or undefined.'100          )101        );102      }103    };104    return originalFn.call(env, specName, asyncJestTest, timeout);105  };106}107function makeConcurrent(originalFn, env, mutex) {108  return function(specName, fn, timeout) {109    if (110      env != null &&111      !env.specFilter({112        getFullName: () => specName || ''113      })114    ) {115      return originalFn.call(env, specName, () => Promise.resolve(), timeout);116    }117    let promise;118    try {119      promise = mutex(() => {120        const promise = fn();121        if (isPromise(promise)) {122          return promise;123        }124        throw new Error(125          `Jest: concurrent test "${specName}" must return a Promise.`126        );127      });128    } catch (error) {129      return originalFn.call(env, specName, () => Promise.reject(error));130    }131    return originalFn.call(env, specName, () => promise, timeout);132  };133}134function jasmineAsyncInstall(globalConfig, global) {135  const jasmine = global.jasmine;136  const mutex = (0, _throat.default)(globalConfig.maxConcurrency);137  const env = jasmine.getEnv();138  env.it = promisifyIt(env.it, env, jasmine);139  env.fit = promisifyIt(env.fit, env, jasmine);140  global.it.concurrent = (env => {141    const concurrent = makeConcurrent(env.it, env, mutex);142    concurrent.only = makeConcurrent(env.fit, env, mutex);143    concurrent.skip = makeConcurrent(env.xit, env, mutex);144    return concurrent;145  })(env);146  global.fit.concurrent = makeConcurrent(env.fit, env, mutex);147  env.afterAll = promisifyLifeCycleFunction(env.afterAll, env);148  env.afterEach = promisifyLifeCycleFunction(env.afterEach, env);149  env.beforeAll = promisifyLifeCycleFunction(env.beforeAll, env);150  env.beforeEach = promisifyLifeCycleFunction(env.beforeEach, env);...

1import React from 'react'2import validation from 'react-validation-mixin'3import strategy from 'react-validatorjs-strategy'4import { Form } from 'semantic-ui-react'5import PropTypes from 'prop-types'6import _ from 'lodash'7class SemForm extends React.Component {8	state = {9		submitted: false,10	}11	static propTypes = {12		source: PropTypes.object.isRequired,13		submitOnEnter: PropTypes.bool,14		onTrySubmit: PropTypes.func, // onTrySubmit when defined will cancel submission of form when false is returned15		onError: PropTypes.func,16		onSuccess: PropTypes.func.isRequired,17		schema: PropTypes.object.isRequired,18		customMessage: PropTypes.object,19		attributeNames: PropTypes.object,20		validationHandler: PropTypes.func,21		onAfterMountForm: PropTypes.func,22	}23	static defaultProps = {24		horizontal: false,25		customMessage: {},26		attributeNames: {},27		submitOnEnter: true,28	}29	static childContextTypes = {30		getErrorText: PropTypes.func,31		checkIsError: PropTypes.func,32		horizontal: PropTypes.bool,33		schema: PropTypes.object,34	}35	getChildContext() {36		return {37			getErrorText: this.getErrorText,38			checkIsError: this.checkIsError,39			horizontal: this.props.horizontal,40			schema: this.props.schema,41		}42	}43	// this is the object validator will look up to when validating44	// in this module, this is accessed from the store45	getValidatorData = () => {46		return this.props.source47	}48	// shows the error message on the HelpBlock49	getErrorText = field => {50		var error = this.props.errors[field]51		var forReturn = ''52		if (_.isArray(error)) {53			_.map(error, err => {54				if (forReturn !== '') {55					forReturn += '; '56				}57				forReturn += err58			})59		} else {60			forReturn = error61		}62		return forReturn63		// if (!error)64		//     return null;65		// if (Array.isArray(error)) {66		//     var message = [];67		//     message = error.map((item, i) => {68		//         return (69		//             <span key={i}>70		//                 {item}71		//                 <br />72		//             </span>73		//         )74		//     });75		//     return message;76		// }77		// else78		//     return (<span>{error || ''}</span>);79	}80	checkIsError = field => {81		if (this.state.submitted) {82			return !this.props.isValid(field)83		} else {84			return false85		}86	}87	onFormSubmit = event => {88		event.preventDefault() // will cancel default formsubmit mechanism we will use ajax89		this.setState(90			{91				submitted: true,92			},93			() => {94				if (this.props.onTrySubmit) {95					if (!this.props.onTrySubmit()) return96				}97				this.props.validate(this.onValidate)98			}99		)100	}101	resetFields = () => {102		this.setState({103			submitted: false,104		})105	}106	onValidate = error => {107		if (error) {108			if (this.props.onError) this.props.onError(error)109		} else {110			if (this.props.onSuccess) this.props.onSuccess()111		}112	}113	componentDidMount() {114		if (this.props.onAfterMountForm) {115			this.props.onAfterMountForm(this)116		}117	}118	submitForm = () => {119		this.refs.hiddenBtn.click()120	}121	checkEnter = e => {122		var txtArea = /textarea/i.test((e.target || e.srcElement).tagName)123		if (txtArea || (e.keyCode || e.which || e.charCode || 0) !== 13) {124			return true125		} else {126			e.preventDefault()127			return false128		}129	}130	render() {131		this.validatorTypes = strategy.createSchema(132			this.props.schema,133			{134				required: 'The field :attribute is required!',135				numeric: 'The field :attribute  should be a number!',136				email: 'The field :attribute should be a valid email!',137			},138			validation => {139				validation.setAttributeNames(this.props.attributeNames)140				if (this.props.validationHandler) this.props.validationHandler(validation)141			}142		)143		return (144			<Form145				onKeyPress={!this.props.submitOnEnter ? this.checkEnter : null}146				onSubmit={this.onFormSubmit}147				style={this.props.style}148			>149				{this.props.children}150				<button style={{ display: 'none' }} type="submit" ref="hiddenBtn" />151			</Form>152		)153	}154}...

1async function getAllAuthors() {2    const res = await requestToBackend("/api/author", 'GET')3    if (!checkIsError(res)) {4        res.data.forEach(author => {5            $('.body').append(createAuthorCard(author));6        });7    }8}9getAllAuthors()10//Function for adding author via fetch request11$('#add_author').on('submit', async function (e) {12    e.preventDefault()13    const res = await requestToBackend($(this).attr('action'), 'POST', new FormData(this))14    if (!checkIsError(res)) {15        alertShow($('#successAlert'))16        $('.body').append(createAuthorCard(res.data))17    }18})19$('#edit_author').on('submit',async function (e) {20    e.preventDefault()21    const res = await requestToBackend($(this).attr('action'), $(this).attr('method'), new FormData(this))22    if (!checkIsError(res)) {23        alertShow($('.alert-success'))24        editAuthorCard(res.data)25    }26});27//Author card editing function28function editAuthorCard(author) {29    $(`.author-${author.id}`).children("p[id='lastname']").text(author.lastname)30    $(`.author-${author.id}`).children("p[id='name']").text(author.name)31    $(`.author-${author.id}`).children("p[id='patronymic']").text(author.patronymic)32}33//Function to open the author edit window34function openAuthorForm(btn) {35    let authorForm = $(btn).parent().parent()36    let authorNameBox = authorForm.children(".authorName")37    console.log(authorNameBox.children("input[name='id']").val())38    $("input[name='id']").val(authorNameBox.children("input[name='id']").val())39    $("input[name='lastname']").val(authorNameBox.children("p[id='lastname']").text())40    $("input[name='name']").val(authorNameBox.children("p[id='name']").text())41    $("input[name='patronymic']").val(authorNameBox.children("p[id='patronymic']").text())42}43//Function for sending a request to delete an author44async function deleteAuthor(btn) {45    const res = await requestToBackend($(btn).data('link'), 'DELETE')46    if(!checkIsError(res)) {47        alert('Автор удален')48        $('.author-' + res.data).remove()49    }50}51//Author card creation function52function createAuthorCard(author) {53    return $("<div class=\"card w-100 author-" + author.id + "\">\n" +54        "<div class=\"card-body\">\n" +55        "<form name=\"authorForm\">\n" +56        "<div class=\"authorCard authorName author-" + author.id + "\">\n" +57        "<p class=\"name\" id=\"lastname\" onformdata=\"lastname\">" + author.lastname + "</p>\n" +58        "<p class=\"name\" id=\"name\">" + author.name + "</p>\n" +59        "<p class=\"name\" id=\"patronymic\">" + author.patronymic +"</p>\n" +60        "<input class=\"name\" name=\"id\" readOnly type=\"hidden\" value=\"" + author.id + "\">\n" +...