
The Complete React Developer Course (with Hooks and Redux) - Snapshot Testing
Interactive Video
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Information Technology (IT), Architecture
•
University
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key difference between testing functions and React components?
Components are tested based on rendering and user interaction.
Functions are tested using snapshots.
Components do not require any testing.
Functions require more setup than components.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of snapshot testing?
To track changes in component output over time.
To test the performance of components.
To ensure components render in the browser.
To test the security of components.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which library is used for rendering components in JavaScript code for testing?
React Test Renderer
Jest
Mocha
Enzyme
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main advantage of shallow rendering?
It renders all child components.
It focuses on rendering the given component only.
It is faster than full DOM rendering.
It tests user interactions.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of using shallow rendering on a component with child components?
No components are rendered.
All child components are rendered.
Only the main component is rendered.
The test will fail.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'toMatchSnapshot' method do in Jest?
It updates the component automatically.
It creates a new snapshot every time.
It compares the current output with a stored snapshot.
It deletes old snapshots.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it not practical to manually assert the rendered output of a component?
It is only possible with full DOM rendering.
It is not supported by React.
It requires additional libraries.
It is too time-consuming and complex.
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