Day.js Testing – Jest Unit Testing Implementation
The dayjs library's testing suite demonstrates a comprehensive unit testing approach using Jest as the primary testing framework. The test suite includes 92 test cases covering core utilities, plugin functionality, and locale-specific features, with particular attention to datetime manipulation, formatting operations, and TypeScript declarations verification. Qodo Tests Hub provides developers with detailed insights into dayjs's testing patterns, making it easier to understand how to effectively test datetime libraries. Through the platform, developers can explore real-world examples of Jest unit tests, examine timezone handling implementations, and learn best practices for testing internationalization features. This practical knowledge helps teams implement more robust testing strategies in their own projects.
| Path | Test Type | Language | Description |
|---|---|---|---|
| test/locale/fi.test.js |
unit
|
javascript | This Jest unit test verifies Finnish locale relative time formatting in Day.js compared to Moment.js implementation. |
| test/locale/hr.test.js |
unit
|
javascript | This Jest unit test verifies Croatian locale date formatting functionality in Day.js by comparing outputs with Moment.js reference implementation. |
| test/locale/is.test.js |
unit
|
javascript | This Jest unit test verifies Icelandic locale implementation and relative time formatting compatibility between Day.js and Moment.js |
| test/locale/it-ch.test.js |
unit
|
javascript | This Jest unit test verifies Italian-Swiss locale formatting and relative time calculations in dayjs against moment.js implementation. |
| test/locale/keys.test.js |
unit
|
javascript | This Jest unit test verifies locale configuration integrity and internationalization support in the Day.js library |
| test/locale/pl.test.js |
unit
|
javascript | This Jest unit test verifies Polish locale implementation for date formatting and relative time calculations in Day.js |
| test/locale/sk.test.js |
unit
|
javascript | This Jest unit test verifies Slovak locale implementation for relative time formatting in Day.js library. |
| test/locale/sr.test.js |
unit
|
javascript | This Jest unit test verifies Serbian locale relative time formatting in Day.js, including past and future expressions with proper grammatical forms. |
| test/locale/sv-fi.test.js |
unit
|
javascript | This Jest unit test verifies Finland Swedish (sv-fi) locale formatting functionality in the dayjs library. |
| test/locale/zh.test.js |
unit
|
javascript | This Jest unit test verifies Chinese locale formatting functionality in Day.js, including ordinal and meridiem handling |