Скачать или смотреть How to Select Options in a Dropdown Menu with Cypress

Learn how to iterate and select each option in a dropdown menu dynamically using Cypress, solving common issues along the way.
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How to Select Options in a Dropdown Menu with Cypress

If you're working with dynamic dropdown menus in your web applications, you might encounter a situation where you need to click or select each option programmatically. This is particularly important when options are generated from a server response, making their number vary. In this guide, we’ll explore how to achieve this using Cypress, a popular end-to-end testing framework for web applications.

The Problem

You want to iterate through all the options in a dropdown menu and select one option for each iteration. An example HTML code snippet for our dropdown looks like this:

[[See Video to Reveal this Text or Code Snippet]]

Cypress code you initially tried was:

[[See Video to Reveal this Text or Code Snippet]]

However, this resulted in a TypeError: v.replace is not a function.

The Solution

To resolve this TypeError and successfully iterate through each dropdown option, you need to adjust your Cypress code slightly. Here’s how to do it step by step.

Step 1: Identify Dropdown Options

Instead of grabbing the entire dropdown element, you should select the options within the dropdown. This way, you’ll avoid the TypeError and ensure that you're interacting with each option directly.

Step 2: Iterate Through the Options

Use Cypress to get the dropdown options and iterate over them. Here’s the corrected code:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code

cy.wait(2000): This line pauses the test for 2 seconds, allowing any asynchronous processes to complete.

cy.get('-filter1 option'): This retrieves all the options inside the dropdown with the ID filter1.

.each(($el, index) => { ... }): This iterates through each <option> element found. $el is a jQuery wrapped element representing the current option, and index is its index in the selection.

cy.log("loop index: " + index): This logs the current index of the iteration to the console for debugging purposes.

cy.get('-filter1').select(index): This selects an option based on its index.

Conclusion

By following these steps, you can dynamically select options in a dropdown menu using Cypress without encountering TypeErrors. Make sure to tailor your Cypress tests according to the structure of the dropdown and the options that may come from your server.

Now you're equipped with a solution to click or select each option in a dropdown menu with ease. Happy testing!