Ombi/tests/cypress/integration/examples/querying.spec.js
2021-03-09 15:01:43 +00:00

115 lines
3.5 KiB
JavaScript

/// <reference types="cypress" />
context('Querying', () => {
beforeEach(() => {
cy.visit('https://example.cypress.io/commands/querying')
})
// The most commonly used query is 'cy.get()', you can
// think of this like the '$' in jQuery
it('cy.get() - query DOM elements', () => {
// https://on.cypress.io/get
cy.get('#query-btn').should('contain', 'Button')
cy.get('.query-btn').should('contain', 'Button')
cy.get('#querying .well>button:first').should('contain', 'Button')
// ↲
// Use CSS selectors just like jQuery
cy.get('[data-test-id="test-example"]').should('have.class', 'example')
// 'cy.get()' yields jQuery object, you can get its attribute
// by invoking `.attr()` method
cy.get('[data-test-id="test-example"]')
.invoke('attr', 'data-test-id')
.should('equal', 'test-example')
// or you can get element's CSS property
cy.get('[data-test-id="test-example"]')
.invoke('css', 'position')
.should('equal', 'static')
// or use assertions directly during 'cy.get()'
// https://on.cypress.io/assertions
cy.get('[data-test-id="test-example"]')
.should('have.attr', 'data-test-id', 'test-example')
.and('have.css', 'position', 'static')
})
it('cy.contains() - query DOM elements with matching content', () => {
// https://on.cypress.io/contains
cy.get('.query-list')
.contains('bananas')
.should('have.class', 'third')
// we can pass a regexp to `.contains()`
cy.get('.query-list')
.contains(/^b\w+/)
.should('have.class', 'third')
cy.get('.query-list')
.contains('apples')
.should('have.class', 'first')
// passing a selector to contains will
// yield the selector containing the text
cy.get('#querying')
.contains('ul', 'oranges')
.should('have.class', 'query-list')
cy.get('.query-button')
.contains('Save Form')
.should('have.class', 'btn')
})
it('.within() - query DOM elements within a specific element', () => {
// https://on.cypress.io/within
cy.get('.query-form').within(() => {
cy.get('input:first').should('have.attr', 'placeholder', 'Email')
cy.get('input:last').should('have.attr', 'placeholder', 'Password')
})
})
it('cy.root() - query the root DOM element', () => {
// https://on.cypress.io/root
// By default, root is the document
cy.root().should('match', 'html')
cy.get('.query-ul').within(() => {
// In this within, the root is now the ul DOM element
cy.root().should('have.class', 'query-ul')
})
})
it('best practices - selecting elements', () => {
// https://on.cypress.io/best-practices#Selecting-Elements
cy.get('[data-cy=best-practices-selecting-elements]').within(() => {
// Worst - too generic, no context
cy.get('button').click()
// Bad. Coupled to styling. Highly subject to change.
cy.get('.btn.btn-large').click()
// Average. Coupled to the `name` attribute which has HTML semantics.
cy.get('[name=submission]').click()
// Better. But still coupled to styling or JS event listeners.
cy.get('#main').click()
// Slightly better. Uses an ID but also ensures the element
// has an ARIA role attribute
cy.get('#main[role=button]').click()
// Much better. But still coupled to text content that may change.
cy.contains('Submit').click()
// Best. Insulated from all changes.
cy.get('[data-cy=submit]').click()
})
})
})