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Discover how to ensure the output of your function matches the slug element value in Cypress testing, with a step-by-step guide!
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This video is based on the question https://stackoverflow.com/q/68197552/ asked by the user 'mnohac' ( https://stackoverflow.com/u/16351568/ ) and on the answer https://stackoverflow.com/a/68199310/ provided by the user 'pavelsaman' ( https://stackoverflow.com/u/10401931/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Verify Function Results with Cypress: Matching Slug Element Value

When writing automated tests with Cypress, one common challenge is verifying that a generated function result matches the expected form, such as a slug element value in your application. This guide guides you through a typical problem encountered when testing with Cypress and how to efficiently solve it by properly managing the Cypress chain.

The Problem

In this example, you want to create a new film and verify that a randomly generated film name matches the slug value in your UI. However, the primary issue arises when you attempt to compare the value generated by your random string function with the actual value of the slug input field. The test fails due to how values are passed and verified within Cypress chains.

You might encounter an error like this during testing:

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

This indicates that the chain is not correctly handling the variable return, leading to mismatched comparisons. But don’t worry! We’ll break down the solution into manageable steps.

The Solution

Organizing Your Code: The main goal is to make use of proper variable handling in your Cypress commands. Here’s how to approach the testing method effectively:

Step 1: Retrieve the Title Input Element

Start by selecting the title input element where you will enter your film name.

Step 2: Generate a Random String

Instead of using the return value from the chaining, generate the random string in a separate variable. This is crucial for understanding and utilizing the created value later for verification.

Step 3: Type the Film Name and Validate the Slug

After generating the random film name, type it into the input field. Subsequently, fetch the slug element and verify its value against the random string.

Updated Code Example

Here’s how your revised function should appear:

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

Key Takeaways

Variable Management: Always store generated values in variables to ensure they are passed correctly between commands in Cypress.

Understanding The Chain: It’s important to manage the Cypress command chain effectively to avoid timing issues and ensure that expected values are being compared correctly.

Error Handling: If you encounter errors regarding timeouts or mismatches, revisit your Cypress chain to ensure each step is correctly structured.

By following these steps, you can effectively verify that the result of your function—your unique film name—matches the slug input value, thus enhancing the reliability of your Cypress tests. Happy testing!