Testing Best Practices

Best practices for software testing involve a systematic approach to ensure quality and reliability.

Testing is a critical component of the software development lifecycle. Proper testing guarantees code quality, minimizes bugs in production, and provides confidence during refactoring.

Repeatability: Tests should produce consistent results each time they run

Test coverage measures the percentage of code covered by tests.

Jest coverage configuration: (Details omitted for brevity)

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it('should return user by id', async () => {

const user = await db.createUser({

email: 'test@example.com'

Frequently asked questions

What does .toHaveText('Email is required') mean?

.toHaveText('Email is required') is a Jest assertion used to verify that an element contains the specified text.

How do I use expect(page.locator('[data-testid="password-error"]'))?

You would use this with a testing framework like Playwright or Cypress to locate and assert on an element based on its data attribute.

What does .toHaveText('Password is required') mean?

.toHaveText('Password is required') is a Jest assertion used to verify that an element contains the specified text.

Can you explain the page-object pattern?

The page-object pattern is a design technique in UI testing where each web page is represented as a class, encapsulating its elements and interactions. This promotes reusability and maintainability.

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Everything above runs in your browser — open Earthquake Wave Propagation Simulation and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.

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