Nugsoft Developer Guides

Testing in Vue 3

Testing ensures your Vue 3 application is reliable, maintainable, and bug-free. Use a combination of unit, integration, and end-to-end tests.

Unit Testing

  • Use Vitest or Jest for unit tests.
  • Test components, composables, and stores in isolation.
  • Use Vue Test Utils for rendering and interacting with components.

Example: Component Unit Test (Vitest)

import { mount } from '@vue/test-utils'
import Counter from '@/components/Counter.vue'
test('increments value on click', async () => {
  const wrapper = mount(Counter)
  await wrapper.find('button').trigger('click')
  expect(wrapper.text()).toContain('1')
})

Integration Testing

  • Test interactions between components and services.
  • Mock API calls and external dependencies.

End-to-End (E2E) Testing

  • Use Cypress or Playwright for E2E tests.
  • Simulate real user flows (navigation, form submission, etc.).

Best Practices

  • Write tests for critical logic and user flows.
  • Run tests in CI pipelines for every commit/PR.
  • Use coverage tools to monitor test completeness.

References

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