How to Convert HTML Tables to JSON using Cypress

Описание: A step-by-step guide on how to convert an HTML table into a structured JSON format using Cypress for easy data comparison in testing.
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This video is based on the question https://stackoverflow.com/q/74870291/ asked by the user 'Vivek Singh' ( https://stackoverflow.com/u/20174017/ ) and on the answer https://stackoverflow.com/a/74873740/ provided by the user 'Genevieve OR' ( https://stackoverflow.com/u/20830133/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Convert HTML Tables to JSON using Cypress

When automating tests for applications that display data in tables, a common requirement is comparing the data shown in the user interface with expected values in JSON format. If you have a table like the one below and want to convert it into a JSON structure, this guide is for you!

The Table Structure

Let's consider the following HTML table as our starting point:

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

Expected JSON Output

Our goal is to transform this table into the following JSON format:

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

Now, let's dive into how we can achieve this conversion using Cypress.

Step-by-Step Guide to Convert HTML Table to JSON

Set Up the Expected JSON: Start by defining what your expected structure should look like. This makes it easier to compare the table data later on. You can create an expected object that mirrors the structure we want.

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

Write Your Cypress Test: Inside your Cypress test, you'll write logic to loop through each row and retrieve the data from each cell.

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

Explanation of the Code:

cy.get('table tbody tr'): This command fetches all rows in the table body.

each(($row, rowIndex): Loops through every row, providing an index for referencing expected data.

cy.wrap($row).find('td'): Wraps the row element and finds all its cells.

expect(text).to.eq(...): This assertion checks that the text inside each cell matches the corresponding data in the expected JSON structure.

Final Thoughts

By following these steps, you can easily convert an HTML table into JSON using Cypress, allowing you to automate UI tests effectively. This way, you can ensure your application displays expected data correctly, making your testing both comprehensive and reliable.

Feel free to adapt the above examples for different table structures and always keep your expected data updated to reflect the current state of your application. Happy testing!