Cypress Element CSS

Cypress is a JavaScript-based end-to-end testing framework used to test web applications. One of the most important aspects of Cypress is its ability to locate web elements using CSS selectors. In this article, we will explore how to use CSS selectors to locate elements in Cypress.

Locating Elements

Cypress offers several ways to locate elements on a web page, including by tag name, class name, attribute value, text content, and CSS selector. However, CSS selectors are the most powerful and commonly used method for locating elements in Cypress.

Basic CSS Selectors

The following are some basic CSS selectors that can be used to locate elements in Cypress:

• element - Selects all elements with the specified tag name.
• .class - Selects all elements with the specified class name.
• #id - Selects the element with the specified ID.
• [attribute=value] - Selects all elements that have the specified attribute with a value equal to the specified value.

For example, to select an element with the class button, we can use the following code:

cy.get('.button')

Advanced CSS Selectors

CSS offers more advanced selectors that can be used to locate elements with more specificity. Some examples of advanced CSS selectors include:

• element, element - Selects all elements that match either of the specified selectors.
• element > element - Selects all elements that are direct children of the specified parent element.
• element + element - Selects the element that is immediately adjacent to the specified element.
• element ~ element - Selects all elements that are siblings of the specified element.

For example, to select the first li element that is a direct child of its parent ul element, we can use the following code:

cy.get('ul > li:first-child')

Pseudo-Selectors

CSS also offers pseudo-selectors that can be used to select elements based on certain conditions, such as their position or state. Some examples of pseudo-selectors include:

• :first-child - Selects the first child element of its parent.
• :last-child - Selects the last child element of its parent.
• :nth-child(n) - Selects the nth child element of its parent.
• :hover - Selects the element when the mouse pointer is over it.
• :focus - Selects the element when it has focus.

For example, to select the first option element in a select element, we can use the following code:

cy.get('select option:first-child')

Conclusion

CSS selectors are a powerful tool for locating web elements in Cypress. With a little bit of practice, you can use CSS selectors to write effective and efficient tests for your web applications.