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Validating toObject Plugin Implementation in dayjs

This test suite validates the toObject plugin functionality in Day.js by comparing its output with Moment.js. The tests ensure proper object representation of date-time values and verify compatibility between the two libraries.

Test Coverage Overview

The test coverage focuses on the toObject plugin’s core functionality for converting Day.js instances to plain JavaScript objects.

  • Validates object structure consistency with Moment.js
  • Tests date-time value conversion accuracy
  • Ensures proper object property mapping

Implementation Analysis

The testing approach uses Jest’s assertion framework to compare Day.js and Moment.js outputs directly. The implementation leverages MockDate for consistent date handling during tests.

  • Direct comparison testing pattern
  • Controlled test environment using MockDate
  • Before/after test hooks for state management

Technical Details

  • Testing Framework: Jest
  • Mocking Utility: MockDate
  • Reference Library: Moment.js
  • Plugin: toObject
  • Environment: Node.js

Best Practices Demonstrated

The test suite demonstrates several testing best practices for date library validation.

  • Consistent test environment setup and teardown
  • Reference-based verification
  • Isolated plugin testing
  • Clear test case naming

iamkun/dayjs

test/plugin/toObject.test.js

            
import MockDate from 'mockdate'
import moment from 'moment'
import dayjs from '../../src'
import toObject from '../../src/plugin/toObject'

dayjs.extend(toObject)

beforeEach(() => {
  MockDate.set(new Date())
})

afterEach(() => {
  MockDate.reset()
})

it('As Object -> toObject', () => {
  expect(dayjs().toObject()).toEqual(moment().toObject())
})