Accessibility testing basics in Angular - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Why use ARIA roles in Angular components?

Which of the following best explains why ARIA roles are important in Angular accessibility testing?

A They automatically fix all keyboard navigation issues in Angular apps.

B They provide semantic meaning to elements, helping screen readers understand the content.

C They change the visual style of components to make them more colorful.

D They prevent users from interacting with elements using a mouse.

💡 Hint

Think about how screen readers interpret web content.

ARIA roles add semantic meaning to HTML elements, which helps assistive technologies like screen readers understand the purpose of elements. This improves accessibility for users with disabilities.

📝 Syntax

intermediate

Identify the accessibility attribute error

Which option contains an Angular template snippet with an incorrect ARIA attribute usage that will cause accessibility issues?

A <button aria-label="Close dialog">X</button>

B <div role="button" tabindex="0" aria-pressed="true">Toggle</div>

C <input type="text" aria-labeledby="username-label">

D <nav aria-label="Main navigation">...</nav>

💡 Hint

Check the spelling of ARIA attributes carefully.

The attribute aria-labeledby is misspelled. The correct attribute is aria-labelledby. Misspelled ARIA attributes are ignored by assistive technologies, causing accessibility issues.

❓ rendering

advanced

What is the visible result of this Angular template with accessibility features?

Given this Angular template snippet, what will the user see rendered in the browser?

Angular

<button aria-disabled="true" disabled>Submit</button>

A A disabled button labeled 'Submit' that cannot be clicked.

B An enabled button labeled 'Submit' that can be clicked.

C A hidden button that is not visible on the page.

D A button labeled 'Submit' that looks enabled but cannot be clicked.

💡 Hint

Consider how the disabled attribute affects button behavior and appearance.

The disabled attribute disables the button, making it unclickable and visually styled as disabled. The aria-disabled attribute reinforces this for assistive technologies.

❓ selector

advanced

Which CSS selector targets only focusable elements for accessibility styling?

In an Angular app, you want to style only elements that can receive keyboard focus. Which CSS selector correctly targets these elements?

A :visited

B :hover

C :active

D :focus-visible

💡 Hint

Focus styles should appear only when keyboard users navigate to elements.

The :focus-visible selector applies styles only when an element receives focus via keyboard navigation, improving accessibility without distracting mouse users.

❓ layout

expert

How does using Flexbox improve accessibility in Angular layouts?

Which statement best describes how Flexbox layout helps accessibility in Angular applications?

A Flexbox allows logical order of elements to match visual order, aiding keyboard navigation and screen readers.

B Flexbox automatically adds ARIA roles to all child elements.

C Flexbox disables tabbing on non-flex items to reduce focusable elements.

D Flexbox changes font sizes to improve readability for all users.

💡 Hint

Think about how visual order and DOM order affect accessibility.

Flexbox lets developers reorder elements visually without changing their order in the HTML. Keeping DOM order logical helps screen readers and keyboard users navigate content predictably.