To configure the format of the data used by aXe. This can be used to add new rules that must be registered with the library to run. The first step is to create the Cypress configuration file (cypress.json): the experimental, ACT, and section508 tags are only added to certain rules. Each rule with a section508 tag also has a tag to specify which requirement of the old section 508 requires the rule. For example, Section 508.22.a. Now let`s add a corresponding import instruction in cypress/support/index.js: It`s time to create the test. In cypress/integration/accessibility.spec.js, add the following: All other rules have not been reported because they have been excluded by Cypress-Axe. I guess Cypress is already installed, so the only dependencies we need to install are Axe-Core and Cypress-Axis. An object that encapsulates the runOnly.values array with a new rule set entry A good example of such a tool is the Axe Accessibility Linter VS code plug-in. Using the same Axe Core rules engine, the plugin notifies you when an accessibility error occurs. Since only about 20-40% of accessibility errors are captured by automated tasks, we need to test our app against all the rules if it is applicable.

Page-level rules cause violations across the entire document, not the individual nodes or frames from which the data was collected. For an example of how to work, see Checking the order of headers: Always consult your team and let them know before disabling accessibility rules. Once the hash processes all the rules normally, it generates a single selector for all the nodes of all the rules. This process can take a long time, especially for pages with many nodes. By limiting nodes to a maximum of one for result types that you are not interested in, you can significantly accelerate final axis performance. In this example, rules are executed only with the ID ruleId1, ruleId2, and ruleId3. No other rules are executed. And, as before, import it into the cypress/support/index.js to inform Cypress of the new goodies: in the code above, I create dynamic tests based on the route array. The test validates each .cypress wrapper element against WCAG 2.0 Level A rules. Be careful not to remove any rule sets from the values[] array. For more information about Axe Core rule sets, see the Axe Core documentation.

Replace all previous calls to axe.configure and reset the configuration to the default configuration. Note: This does NOT unregister any new rules or checks that have been saved, but resets the configuration to the default configuration for everything else. The axeCheck helper method searches the pages of rule sets AA sections 508, WCAG2.0 A, and WCAG2.0 whenever it is called in an end-to-end cypress test. Some rules (such as the color contrast rule) examine almost every element on a page, and some of these rules also perform somewhat expensive operations on those elements, including searching the hierarchy, examining overlapping elements, calculating calculated styles, and so on. It also calculates a unique selector for each item in the results and also deduplicates the items so that you don`t get duplicate items in your results. Each subsequent entry in the pass array has the same format, but describes the different rules that were executed as part of this call to axis.run(). Next let`s add the required dependencies to the project – we need cypress-axis and axis-core (with the –dev flag to add them as developer dependencies): If you only want to run certain rules, specify the following options: This example contains all the level A rules except valid-lang and additionally the level AA color contrast rule. Start cloning the sample repository.

Next, create a new branch and install Cypress-axis, the package responsible for linking the axe motor to Cypress. Learn more about Axe Core rule sets if you want to add WCAG2.1 or best practice rules to your Cypress Axe is open source test. It does not return any false positives (regardless of errors). It`s designed to work on all modern browsers and with all the tools, frameworks, libraries, and environments you use today. It is actively supported by Deque Systems, a leading accessibility provider. It integrates with your existing automated function/acceptance tests. Depending on the evaluation context, it automatically determines which rules to execute. Axis supports in-memory fasteners, static fasteners, integration testing, and infinite depth iFrames. Axis is highly configurable. Then open Cypress.

This command creates the Cypress catalog and cypress.json the first time you open Cypress: In this example, we pass the selector for the entire document, do not pass any options, which means that all enabled rules are executed, and have a simple callback function that saves the entire result object in the console log: If you are using TypeScript, add Cypress hash types to your Cypress` tsconfig.json file: From there there are 2 options: Run Cypress in headless mode with npm run cypress run or use Cypress Test Runner with npm run cypress open. The same engine can be used with Cypress thanks to the Cypress-Axe package. It adds several custom commands to the Cypress API that uses «Axe-Core» under the hood. It allows a11y audits to be performed directly during the test. A parent object that encapsulates the rules object with a hyphen string and a Boolean object { enabled: true }. This example disables rules with the ID color-contrast and valid-lang. All other rules are executed. For a list of valid rule IDs, see the next section.

To add a complete set of rules to your Cypress test, call cy.axeCheck() with two arguments: To run WCAG 2.0 Level A and Level AA rules, you must specify wcag2a and wcag2aa: Depending on the application overview, after visiting the page, the first tab line should focus on the «Name» field of the form. Let`s verify this using both the realPress command from cypress-real-events and the targeted command from Cypress. The latter comes from the Cypress API and retrieves the currently concentrated DOM element. However, since Cypress wraps the application under test (AUT) in its own separate iframe and events are raised with the CDP, we need an extra click somewhere in the AUT. This would ensure that events are triggered correctly for the TUE and not for the Cypress runner. A set of options passed in rules or checks to change them temporarily. This contrasts with axe.configure, which is more durable. In the example above, the pass array contains two entries that match the two rules being tested.

The first element of the table describes a check for color contrast. It transmits the information that a list of nodes has been checked and then transmitted. The help, helpUrl, and id fields are returned as expected for each of the entries in the pass array. The target array contains an item with the value All Rules Have a cat.* tag that indicates which type of content it belongs to. The following cat.* tags exist in core-axis: The last available command is configureAxe. For more complex use cases, this command allows you to define custom rules or modify existing checks and rules. This allows you to change the default report and locale of the output messages. In the previous article describing our journey with accessibility testing, I mentioned the DevTools axis browser extension. It allows the user to perform on-site audits so that accessibility issues can be detected. This extension is based on the Axe Core engine – a testing tool that validates against different types of rules and best practices.

Impact-based filtering combined with the skipFailures argument allows you to introduce cypress-axis into testing a legacy application without failing in CI before you have the opportunity to resolve accessibility issues. Ideally, you`d gradually move towards stricter testing as you tackle the issues. In this example, we pass the WCAG 2A and AA tags to axe.getRules to retrieve only these rules. The function call returns an array of rules. Page-level rules divide their evaluation into two phases. A «data collection» phase carried out as part of the «Evaluate» function and an evaluation phase carried out as part of the «After» function. The evaluation function is carried out in each frame and is responsible for the collection data that is transmitted to the subsequent function, which verifies this data and makes a decision. This example returns all nodes of all rules that fall under the Violations, Incomplete, and Not Applicable result types. Because the type of passes is not specified, a maximum node is returned for each rule passed. Now we need to let Cypress know that we have expanded the list of orders.

Therefore, we need to add the following import statement in cypress/support/index.js: Returns: Array of rules that match the input filter, each entry being in the format {ruleId: , description: , helpUrl: , help: , tags: } All these examples are in an