UNPKG

@testing-library/jest-dom

Version:

Custom jest matchers to test the state of the DOM

772 lines (767 loc) 33.5 kB
import {type ARIARole} from 'aria-query' declare namespace matchers { interface TestingLibraryMatchers<E, R> { /** * @deprecated * since v1.9.0 * @description * Assert whether a value is a DOM element, or not. Contrary to what its name implies, this matcher only checks * that you passed to it a valid DOM element. * * It does not have a clear definition of what "the DOM" is. Therefore, it does not check whether that element * is contained anywhere. * @see * [testing-library/jest-dom#toBeInTheDom](https://github.com/testing-library/jest-dom#toBeInTheDom) */ toBeInTheDOM(container?: HTMLElement | SVGElement): R /** * @description * Assert whether an element is present in the document or not. * @example * <svg data-testid="svg-element"></svg> * * expect(queryByTestId('svg-element')).toBeInTheDocument() * expect(queryByTestId('does-not-exist')).not.toBeInTheDocument() * @see * [testing-library/jest-dom#tobeinthedocument](https://github.com/testing-library/jest-dom#tobeinthedocument) */ toBeInTheDocument(): R /** * @description * This allows you to check if an element is currently visible to the user. * * An element is visible if **all** the following conditions are met: * * it does not have its css property display set to none * * it does not have its css property visibility set to either hidden or collapse * * it does not have its css property opacity set to 0 * * its parent element is also visible (and so on up to the top of the DOM tree) * * it does not have the hidden attribute * * if `<details />` it has the open attribute * @example * <div * data-testid="zero-opacity" * style="opacity: 0" * > * Zero Opacity * </div> * * <div data-testid="visible">Visible Example</div> * * expect(getByTestId('zero-opacity')).not.toBeVisible() * expect(getByTestId('visible')).toBeVisible() * @see * [testing-library/jest-dom#tobevisible](https://github.com/testing-library/jest-dom#tobevisible) */ toBeVisible(): R /** * @deprecated * since v5.9.0 * @description * Assert whether an element has content or not. * @example * <span data-testid="not-empty"> * <span data-testid="empty"></span> * </span> * * expect(getByTestId('empty')).toBeEmpty() * expect(getByTestId('not-empty')).not.toBeEmpty() * @see * [testing-library/jest-dom#tobeempty](https://github.com/testing-library/jest-dom#tobeempty) */ toBeEmpty(): R /** * @description * Assert whether an element has content or not. * @example * <span data-testid="not-empty"> * <span data-testid="empty"></span> * </span> * * expect(getByTestId('empty')).toBeEmptyDOMElement() * expect(getByTestId('not-empty')).not.toBeEmptyDOMElement() * @see * [testing-library/jest-dom#tobeemptydomelement](https://github.com/testing-library/jest-dom#tobeemptydomelement) */ toBeEmptyDOMElement(): R /** * @description * Allows you to check whether an element is disabled from the user's perspective. * * Matches if the element is a form control and the `disabled` attribute is specified on this element or the * element is a descendant of a form element with a `disabled` attribute. * @example * <button * data-testid="button" * type="submit" * disabled * > * submit * </button> * * expect(getByTestId('button')).toBeDisabled() * @see * [testing-library/jest-dom#tobedisabled](https://github.com/testing-library/jest-dom#tobedisabled) */ toBeDisabled(): R /** * @description * Allows you to check whether an element is not disabled from the user's perspective. * * Works like `not.toBeDisabled()`. * * Use this matcher to avoid double negation in your tests. * @example * <button * data-testid="button" * type="submit" * > * submit * </button> * * expect(getByTestId('button')).toBeEnabled() * @see * [testing-library/jest-dom#tobeenabled](https://github.com/testing-library/jest-dom#tobeenabled) */ toBeEnabled(): R /** * @description * Check if a form element, or the entire `form`, is currently invalid. * * An `input`, `select`, `textarea`, or `form` element is invalid if it has an `aria-invalid` attribute with no * value or a value of "true", or if the result of `checkValidity()` is false. * @example * <input data-testid="no-aria-invalid" /> * * <form data-testid="invalid-form"> * <input required /> * </form> * * expect(getByTestId('no-aria-invalid')).not.toBeInvalid() * expect(getByTestId('invalid-form')).toBeInvalid() * @see * [testing-library/jest-dom#tobeinvalid](https://github.com/testing-library/jest-dom#tobeinvalid) */ toBeInvalid(): R /** * @description * This allows you to check if a form element is currently required. * * An element is required if it is having a `required` or `aria-required="true"` attribute. * @example * <input data-testid="required-input" required /> * <div * data-testid="supported-role" * role="tree" * required /> * * expect(getByTestId('required-input')).toBeRequired() * expect(getByTestId('supported-role')).not.toBeRequired() * @see * [testing-library/jest-dom#toberequired](https://github.com/testing-library/jest-dom#toberequired) */ toBeRequired(): R /** * @description * Allows you to check if a form element is currently required. * * An `input`, `select`, `textarea`, or `form` element is invalid if it has an `aria-invalid` attribute with no * value or a value of "false", or if the result of `checkValidity()` is true. * @example * <input data-testid="aria-invalid" aria-invalid /> * * <form data-testid="valid-form"> * <input /> * </form> * * expect(getByTestId('no-aria-invalid')).not.toBeValid() * expect(getByTestId('invalid-form')).toBeInvalid() * @see * [testing-library/jest-dom#tobevalid](https://github.com/testing-library/jest-dom#tobevalid) */ toBeValid(): R /** * @description * Allows you to assert whether an element contains another element as a descendant or not. * @example * <span data-testid="ancestor"> * <span data-testid="descendant"></span> * </span> * * const ancestor = getByTestId('ancestor') * const descendant = getByTestId('descendant') * const nonExistantElement = getByTestId('does-not-exist') * expect(ancestor).toContainElement(descendant) * expect(descendant).not.toContainElement(ancestor) * expect(ancestor).not.toContainElement(nonExistantElement) * @see * [testing-library/jest-dom#tocontainelement](https://github.com/testing-library/jest-dom#tocontainelement) */ toContainElement(element: HTMLElement | SVGElement | null): R /** * @description * Assert whether a string representing a HTML element is contained in another element. * @example * <span data-testid="parent"><span data-testid="child"></span></span> * * expect(getByTestId('parent')).toContainHTML('<span data-testid="child"></span>') * @see * [testing-library/jest-dom#tocontainhtml](https://github.com/testing-library/jest-dom#tocontainhtml) */ toContainHTML(htmlText: string): R /** * @description * Allows you to check if a given element has an attribute or not. * * You can also optionally check that the attribute has a specific expected value or partial match using * [expect.stringContaining](https://jestjs.io/docs/en/expect.html#expectnotstringcontainingstring) or * [expect.stringMatching](https://jestjs.io/docs/en/expect.html#expectstringmatchingstring-regexp). * @example * <button * data-testid="ok-button" * type="submit" * disabled * > * ok * </button> * * expect(button).toHaveAttribute('disabled') * expect(button).toHaveAttribute('type', 'submit') * expect(button).not.toHaveAttribute('type', 'button') * @see * [testing-library/jest-dom#tohaveattribute](https://github.com/testing-library/jest-dom#tohaveattribute) */ toHaveAttribute(attr: string, value?: unknown): R /** * @description * Check whether the given element has certain classes within its `class` attribute. * * You must provide at least one class, unless you are asserting that an element does not have any classes. * @example * <button * data-testid="delete-button" * class="btn xs btn-danger" * > * delete item * </button> * * <div data-testid="no-classes">no classes</div> * * const deleteButton = getByTestId('delete-button') * const noClasses = getByTestId('no-classes') * expect(deleteButton).toHaveClass('btn') * expect(deleteButton).toHaveClass('btn-danger xs') * expect(deleteButton).toHaveClass(/danger/, 'xs') * expect(deleteButton).toHaveClass('btn xs btn-danger', {exact: true}) * expect(deleteButton).not.toHaveClass('btn xs btn-danger', {exact: true}) * expect(noClasses).not.toHaveClass() * @see * [testing-library/jest-dom#tohaveclass](https://github.com/testing-library/jest-dom#tohaveclass) */ toHaveClass(...classNames: Array<string | RegExp>): R toHaveClass(classNames: string, options?: {exact: boolean}): R /** * @description * This allows you to check whether the given form element has the specified displayed value (the one the * end user will see). It accepts <input>, <select> and <textarea> elements with the exception of <input type="checkbox"> * and <input type="radio">, which can be meaningfully matched only using toBeChecked or toHaveFormValues. * @example * <label for="input-example">First name</label> * <input type="text" id="input-example" value="Luca" /> * * <label for="textarea-example">Description</label> * <textarea id="textarea-example">An example description here.</textarea> * * <label for="single-select-example">Fruit</label> * <select id="single-select-example"> * <option value="">Select a fruit...</option> * <option value="banana">Banana</option> * <option value="ananas">Ananas</option> * <option value="avocado">Avocado</option> * </select> * * <label for="mutiple-select-example">Fruits</label> * <select id="multiple-select-example" multiple> * <option value="">Select a fruit...</option> * <option value="banana" selected>Banana</option> * <option value="ananas">Ananas</option> * <option value="avocado" selected>Avocado</option> * </select> * * const input = screen.getByLabelText('First name') * const textarea = screen.getByLabelText('Description') * const selectSingle = screen.getByLabelText('Fruit') * const selectMultiple = screen.getByLabelText('Fruits') * * expect(input).toHaveDisplayValue('Luca') * expect(textarea).toHaveDisplayValue('An example description here.') * expect(selectSingle).toHaveDisplayValue('Select a fruit...') * expect(selectMultiple).toHaveDisplayValue(['Banana', 'Avocado']) * * @see * [testing-library/jest-dom#tohavedisplayvalue](https://github.com/testing-library/jest-dom#tohavedisplayvalue) */ toHaveDisplayValue(value: string | RegExp | Array<string | RegExp>): R /** * @description * Assert whether an element has focus or not. * @example * <div> * <input type="text" data-testid="element-to-focus" /> * </div> * * const input = getByTestId('element-to-focus') * input.focus() * expect(input).toHaveFocus() * input.blur() * expect(input).not.toHaveFocus() * @see * [testing-library/jest-dom#tohavefocus](https://github.com/testing-library/jest-dom#tohavefocus) */ toHaveFocus(): R /** * @description * Check if a form or fieldset contains form controls for each given name, and having the specified value. * * Can only be invoked on a form or fieldset element. * @example * <form data-testid="login-form"> * <input type="text" name="username" value="jane.doe" /> * <input type="password" name="password" value="123" /> * <input type="checkbox" name="rememberMe" checked /> * <button type="submit">Sign in</button> * </form> * * expect(getByTestId('login-form')).toHaveFormValues({ * username: 'jane.doe', * rememberMe: true, * }) * @see * [testing-library/jest-dom#tohaveformvalues](https://github.com/testing-library/jest-dom#tohaveformvalues) */ toHaveFormValues(expectedValues: Record<string, unknown>): R /** * @description * Check if an element has specific css properties with specific values applied. * * Only matches if the element has *all* the expected properties applied, not just some of them. * @example * <button * data-testid="submit-button" * style="background-color: green; display: none" * > * submit * </button> * * const button = getByTestId('submit-button') * expect(button).toHaveStyle('background-color: green') * expect(button).toHaveStyle({ * 'background-color': 'green', * display: 'none' * }) * @see * [testing-library/jest-dom#tohavestyle](https://github.com/testing-library/jest-dom#tohavestyle) */ toHaveStyle(css: string | Record<string, unknown>): R /** * @description * Check whether the given element has a text content or not. * * When a string argument is passed through, it will perform a partial case-sensitive match to the element * content. * * To perform a case-insensitive match, you can use a RegExp with the `/i` modifier. * * If you want to match the whole content, you can use a RegExp to do it. * @example * <span data-testid="text-content">Text Content</span> * * const element = getByTestId('text-content') * expect(element).toHaveTextContent('Content') * // to match the whole content * expect(element).toHaveTextContent(/^Text Content$/) * // to use case-insentive match * expect(element).toHaveTextContent(/content$/i) * expect(element).not.toHaveTextContent('content') * @see * [testing-library/jest-dom#tohavetextcontent](https://github.com/testing-library/jest-dom#tohavetextcontent) */ toHaveTextContent( text: string | RegExp, options?: {normalizeWhitespace: boolean}, ): R /** * @description * Check whether the given form element has the specified value. * * Accepts `<input>`, `<select>`, and `<textarea>` elements with the exception of `<input type="checkbox">` and * `<input type="radiobox">`, which can be matched only using * [toBeChecked](https://github.com/testing-library/jest-dom#tobechecked) or * [toHaveFormValues](https://github.com/testing-library/jest-dom#tohaveformvalues). * @example * <input * type="number" * value="5" * data-testid="input-number" /> * * const numberInput = getByTestId('input-number') * expect(numberInput).toHaveValue(5) * @see * [testing-library/jest-dom#tohavevalue](https://github.com/testing-library/jest-dom#tohavevalue) */ toHaveValue(value?: string | string[] | number | null): R /** * @description * Assert whether the given element is checked. * * It accepts an `input` of type `checkbox` or `radio` and elements with a `role` of `radio` with a valid * `aria-checked` attribute of "true" or "false". * @example * <input * type="checkbox" * checked * data-testid="input-checkbox" /> * <input * type="radio" * value="foo" * data-testid="input-radio" /> * * const inputCheckbox = getByTestId('input-checkbox') * const inputRadio = getByTestId('input-radio') * expect(inputCheckbox).toBeChecked() * expect(inputRadio).not.toBeChecked() * @see * [testing-library/jest-dom#tobechecked](https://github.com/testing-library/jest-dom#tobechecked) */ toBeChecked(): R /** * @deprecated * since v5.14.1 * @description * Check the accessible description for an element. * This allows you to check whether the given element has a description or not. * * An element gets its description via the * [`aria-describedby` attribute](https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Techniques/Using_the_aria-describedby_attribute). * Set this to the `id` of one or more other elements. These elements may be nested * inside, be outside, or a sibling of the passed in element. * * Whitespace is normalized. Using multiple ids will * [join the referenced elements’ text content separated by a space](https://www.w3.org/TR/accname-1.1/#mapping_additional_nd_description). * * When a `string` argument is passed through, it will perform a whole * case-sensitive match to the description text. * * To perform a case-insensitive match, you can use a `RegExp` with the `/i` * modifier. * * To perform a partial match, you can pass a `RegExp` or use * `expect.stringContaining("partial string")`. * * @example * <button aria-label="Close" aria-describedby="description-close"> * X * </button> * <div id="description-close"> * Closing will discard any changes * </div> * * <button>Delete</button> * * const closeButton = getByRole('button', {name: 'Close'}) * * expect(closeButton).toHaveDescription('Closing will discard any changes') * expect(closeButton).toHaveDescription(/will discard/) // to partially match * expect(closeButton).toHaveDescription(expect.stringContaining('will discard')) // to partially match * expect(closeButton).toHaveDescription(/^closing/i) // to use case-insensitive match * expect(closeButton).not.toHaveDescription('Other description') * * const deleteButton = getByRole('button', {name: 'Delete'}) * expect(deleteButton).not.toHaveDescription() * expect(deleteButton).toHaveDescription('') // Missing or empty description always becomes a blank string * @see * [testing-library/jest-dom#tohavedescription](https://github.com/testing-library/jest-dom#tohavedescription) */ toHaveDescription(text?: string | RegExp | E): R /** * @description * This allows to assert that an element has the expected [accessible description](https://w3c.github.io/accname/). * * You can pass the exact string of the expected accessible description, or you can make a * partial match passing a regular expression, or by using either * [expect.stringContaining](https://jestjs.io/docs/en/expect.html#expectnotstringcontainingstring) * or [expect.stringMatching](https://jestjs.io/docs/en/expect.html#expectstringmatchingstring-regexp). * @example * <a data-testid="link" href="/" aria-label="Home page" title="A link to start over">Start</a> * <a data-testid="extra-link" href="/about" aria-label="About page">About</a> * <img src="avatar.jpg" data-testid="avatar" alt="User profile pic" /> * <img src="logo.jpg" data-testid="logo" alt="Company logo" aria-describedby="t1" /> * <span id="t1" role="presentation">The logo of Our Company</span> * * expect(getByTestId('link')).toHaveAccessibleDescription() * expect(getByTestId('link')).toHaveAccessibleDescription('A link to start over') * expect(getByTestId('link')).not.toHaveAccessibleDescription('Home page') * expect(getByTestId('extra-link')).not.toHaveAccessibleDescription() * expect(getByTestId('avatar')).not.toHaveAccessibleDescription() * expect(getByTestId('logo')).not.toHaveAccessibleDescription('Company logo') * expect(getByTestId('logo')).toHaveAccessibleDescription('The logo of Our Company') * @see * [testing-library/jest-dom#tohaveaccessibledescription](https://github.com/testing-library/jest-dom#tohaveaccessibledescription) */ toHaveAccessibleDescription(text?: string | RegExp | E): R /** * @description * This allows you to assert that an element has the expected * [accessible error message](https://w3c.github.io/aria/#aria-errormessage). * * You can pass the exact string of the expected accessible error message. * Alternatively, you can perform a partial match by passing a regular expression * or by using either * [expect.stringContaining](https://jestjs.io/docs/en/expect.html#expectnotstringcontainingstring) * or [expect.stringMatching](https://jestjs.io/docs/en/expect.html#expectstringmatchingstring-regexp). * * @example * <input aria-label="Has Error" aria-invalid="true" aria-errormessage="error-message" /> * <div id="error-message" role="alert">This field is invalid</div> * * <input aria-label="No Error Attributes" /> * <input aria-label="Not Invalid" aria-invalid="false" aria-errormessage="error-message" /> * * // Inputs with Valid Error Messages * expect(getByRole('textbox', {name: 'Has Error'})).toHaveAccessibleErrorMessage() * expect(getByRole('textbox', {name: 'Has Error'})).toHaveAccessibleErrorMessage('This field is invalid') * expect(getByRole('textbox', {name: 'Has Error'})).toHaveAccessibleErrorMessage(/invalid/i) * expect( * getByRole('textbox', {name: 'Has Error'}), * ).not.toHaveAccessibleErrorMessage('This field is absolutely correct!') * * // Inputs without Valid Error Messages * expect( * getByRole('textbox', {name: 'No Error Attributes'}), * ).not.toHaveAccessibleErrorMessage() * * expect( * getByRole('textbox', {name: 'Not Invalid'}), * ).not.toHaveAccessibleErrorMessage() * * @see * [testing-library/jest-dom#tohaveaccessibleerrormessage](https://github.com/testing-library/jest-dom#tohaveaccessibleerrormessage) */ toHaveAccessibleErrorMessage(text?: string | RegExp | E): R /** * @description * This allows to assert that an element has the expected [accessible name](https://w3c.github.io/accname/). * It is useful, for instance, to assert that form elements and buttons are properly labelled. * * You can pass the exact string of the expected accessible name, or you can make a * partial match passing a regular expression, or by using either * [expect.stringContaining](https://jestjs.io/docs/en/expect.html#expectnotstringcontainingstring) * or [expect.stringMatching](https://jestjs.io/docs/en/expect.html#expectstringmatchingstring-regexp). * @example * <img data-testid="img-alt" src="" alt="Test alt" /> * <img data-testid="img-empty-alt" src="" alt="" /> * <svg data-testid="svg-title"><title>Test title</title></svg> * <button data-testid="button-img-alt"><img src="" alt="Test" /></button> * <p><img data-testid="img-paragraph" src="" alt="" /> Test content</p> * <button data-testid="svg-button"><svg><title>Test</title></svg></p> * <div><svg data-testid="svg-without-title"></svg></div> * <input data-testid="input-title" title="test" /> * * expect(getByTestId('img-alt')).toHaveAccessibleName('Test alt') * expect(getByTestId('img-empty-alt')).not.toHaveAccessibleName() * expect(getByTestId('svg-title')).toHaveAccessibleName('Test title') * expect(getByTestId('button-img-alt')).toHaveAccessibleName() * expect(getByTestId('img-paragraph')).not.toHaveAccessibleName() * expect(getByTestId('svg-button')).toHaveAccessibleName() * expect(getByTestId('svg-without-title')).not.toHaveAccessibleName() * expect(getByTestId('input-title')).toHaveAccessibleName() * @see * [testing-library/jest-dom#tohaveaccessiblename](https://github.com/testing-library/jest-dom#tohaveaccessiblename) */ toHaveAccessibleName(text?: string | RegExp | E): R /** * @description * This allows you to assert that an element has the expected * [role](https://www.w3.org/TR/html-aria/#docconformance). * * This is useful in cases where you already have access to an element via * some query other than the role itself, and want to make additional * assertions regarding its accessibility. * * The role can match either an explicit role (via the `role` attribute), or * an implicit one via the [implicit ARIA * semantics](https://www.w3.org/TR/html-aria/). * * Note: roles are matched literally by string equality, without inheriting * from the ARIA role hierarchy. As a result, querying a superclass role * like 'checkbox' will not include elements with a subclass role like * 'switch'. * * @example * <button data-testid="button">Continue</button> * <div role="button" data-testid="button-explicit">Continue</button> * <button role="switch button" data-testid="button-explicit-multiple">Continue</button> * <a href="/about" data-testid="link">About</a> * <a data-testid="link-invalid">Invalid link<a/> * * expect(getByTestId('button')).toHaveRole('button') * expect(getByTestId('button-explicit')).toHaveRole('button') * expect(getByTestId('button-explicit-multiple')).toHaveRole('button') * expect(getByTestId('button-explicit-multiple')).toHaveRole('switch') * expect(getByTestId('link')).toHaveRole('link') * expect(getByTestId('link-invalid')).not.toHaveRole('link') * expect(getByTestId('link-invalid')).toHaveRole('generic') * * @see * [testing-library/jest-dom#tohaverole](https://github.com/testing-library/jest-dom#tohaverole) */ toHaveRole( // Get autocomplete for ARIARole union types, while still supporting another string // Ref: https://github.com/microsoft/TypeScript/issues/29729#issuecomment-567871939 role: ARIARole | (string & {}), ): R /** * @description * This allows you to check whether the given element is partially checked. * It accepts an input of type checkbox and elements with a role of checkbox * with a aria-checked="mixed", or input of type checkbox with indeterminate * set to true * * @example * <input type="checkbox" aria-checked="mixed" data-testid="aria-checkbox-mixed" /> * <input type="checkbox" checked data-testid="input-checkbox-checked" /> * <input type="checkbox" data-testid="input-checkbox-unchecked" /> * <div role="checkbox" aria-checked="true" data-testid="aria-checkbox-checked" /> * <div * role="checkbox" * aria-checked="false" * data-testid="aria-checkbox-unchecked" * /> * <input type="checkbox" data-testid="input-checkbox-indeterminate" /> * * const ariaCheckboxMixed = getByTestId('aria-checkbox-mixed') * const inputCheckboxChecked = getByTestId('input-checkbox-checked') * const inputCheckboxUnchecked = getByTestId('input-checkbox-unchecked') * const ariaCheckboxChecked = getByTestId('aria-checkbox-checked') * const ariaCheckboxUnchecked = getByTestId('aria-checkbox-unchecked') * const inputCheckboxIndeterminate = getByTestId('input-checkbox-indeterminate') * * expect(ariaCheckboxMixed).toBePartiallyChecked() * expect(inputCheckboxChecked).not.toBePartiallyChecked() * expect(inputCheckboxUnchecked).not.toBePartiallyChecked() * expect(ariaCheckboxChecked).not.toBePartiallyChecked() * expect(ariaCheckboxUnchecked).not.toBePartiallyChecked() * * inputCheckboxIndeterminate.indeterminate = true * expect(inputCheckboxIndeterminate).toBePartiallyChecked() * @see * [testing-library/jest-dom#tobepartiallychecked](https://github.com/testing-library/jest-dom#tobepartiallychecked) */ toBePartiallyChecked(): R /** * @deprecated * since v5.17.0 * * @description * Check whether the given element has an [ARIA error message](https://www.w3.org/TR/wai-aria/#aria-errormessage) or not. * * Use the `aria-errormessage` attribute to reference another element that contains * custom error message text. Multiple ids is **NOT** allowed. Authors MUST use * `aria-invalid` in conjunction with `aria-errormessage`. Learn more from the * [`aria-errormessage` spec](https://www.w3.org/TR/wai-aria/#aria-errormessage). * * Whitespace is normalized. * * When a `string` argument is passed through, it will perform a whole * case-sensitive match to the error message text. * * To perform a case-insensitive match, you can use a `RegExp` with the `/i` * modifier. * * To perform a partial match, you can pass a `RegExp` or use * expect.stringContaining("partial string")`. * * @example * <label for="startTime"> Please enter a start time for the meeting: </label> * <input id="startTime" type="text" aria-errormessage="msgID" aria-invalid="true" value="11:30 PM" /> * <span id="msgID" aria-live="assertive" style="visibility:visible"> * Invalid time: the time must be between 9:00 AM and 5:00 PM" * </span> * * * const timeInput = getByLabel('startTime') * * expect(timeInput).toHaveErrorMessage( * 'Invalid time: the time must be between 9:00 AM and 5:00 PM', * ) * expect(timeInput).toHaveErrorMessage(/invalid time/i) // to partially match * expect(timeInput).toHaveErrorMessage(expect.stringContaining('Invalid time')) // to partially match * expect(timeInput).not.toHaveErrorMessage('Pikachu!') * @see * [testing-library/jest-dom#tohaveerrormessage](https://github.com/testing-library/jest-dom#tohaveerrormessage) */ toHaveErrorMessage(text?: string | RegExp | E): R /** * @description * This allows to assert that an element has a * [text selection](https://developer.mozilla.org/en-US/docs/Web/API/Selection). * * This is useful to check if text or part of the text is selected within an * element. The element can be either an input of type text, a textarea, or any * other element that contains text, such as a paragraph, span, div etc. * * NOTE: the expected selection is a string, it does not allow to check for * selection range indeces. * * @example * <div> * <input type="text" value="text selected text" data-testid="text" /> * <textarea data-testid="textarea">text selected text</textarea> * <p data-testid="prev">prev</p> * <p data-testid="parent">text <span data-testid="child">selected</span> text</p> * <p data-testid="next">next</p> * </div> * * getByTestId('text').setSelectionRange(5, 13) * expect(getByTestId('text')).toHaveSelection('selected') * * getByTestId('textarea').setSelectionRange(0, 5) * expect('textarea').toHaveSelection('text ') * * const selection = document.getSelection() * const range = document.createRange() * selection.removeAllRanges() * selection.empty() * selection.addRange(range) * * // selection of child applies to the parent as well * range.selectNodeContents(getByTestId('child')) * expect(getByTestId('child')).toHaveSelection('selected') * expect(getByTestId('parent')).toHaveSelection('selected') * * // selection that applies from prev all, parent text before child, and part child. * range.setStart(getByTestId('prev'), 0) * range.setEnd(getByTestId('child').childNodes[0], 3) * expect(queryByTestId('prev')).toHaveSelection('prev') * expect(queryByTestId('child')).toHaveSelection('sel') * expect(queryByTestId('parent')).toHaveSelection('text sel') * expect(queryByTestId('next')).not.toHaveSelection() * * // selection that applies from part child, parent text after child and part next. * range.setStart(getByTestId('child').childNodes[0], 3) * range.setEnd(getByTestId('next').childNodes[0], 2) * expect(queryByTestId('child')).toHaveSelection('ected') * expect(queryByTestId('parent')).toHaveSelection('ected text') * expect(queryByTestId('prev')).not.toHaveSelection() * expect(queryByTestId('next')).toHaveSelection('ne') * * @see * [testing-library/jest-dom#tohaveselection](https://github.com/testing-library/jest-dom#tohaveselection) */ toHaveSelection(selection?: string): R } } // Needs to extend Record<string, any> to be accepted by expect.extend() // as it requires a string index signature. declare const matchers: matchers.TestingLibraryMatchers<any, void> & Record<string, any> export = matchers