Deno 1.10 overhauls test runner

Victoria D. Doty

Deno 1.ten, the most up-to-date edition of the security-concentrated runtime for JavaScript and TypeScript, enhances the designed-in exam runner and adds a Net Storage API. The update was revealed May eleven.

In Deno 1.ten, the deno exam exam runner runs identified exam modules in isolation applying a new occasion of the runtime for each module. Beforehand, Deno ran tests serially within a single runtime occasion. Even further, deno exam now supports the --positions flag to specify how numerous threads need to be used when jogging tests. Assessments nevertheless operate serially by default.

Deno 1.ten also introduces configurable permissions for tests, applying a permissions selection the capacity to type check code examples in documentation feedback, applying the --doc flag the capacity to enjoy for file alterations to re-operate applicable exam scenarios, applying the --enjoy flag and better exam runner output. In foreseeable future releases, help will be included for jogging code examples as regular tests.

Deno 1.ten follows previous month’s release of Deno 1.nine. To improve to Deno 1.ten, users can operate deno improve. Other improvements in Deno 1.ten:

  • For Net Staff, the structured clone algorithm is leveraged to boost serialization. Net Staff permit builders to operate many bits of JavaScript, TypeScript, and WebAssembly concurrently in independent execution environments, with conversation involving staff and the primary thread completed by passing messages.
  • Help has been included for a Net Storage API, which consists of localStorage and sessionStorage. This can be used to retail store a compact amount of money of information persistently, without having direct file entry.
  • Atomics and shared memory in WebAssembly are enabled by default.
  • Help is offered for the deno-fmt.overlook file directive for Markdown documents to skip file formatting deno-fmt is a formatter based mostly on dprint, which is in a position to format JavaScript, TypeScript, JSON, and Markdown documents.
  • Users no extended have to retail store import maps on the area file system import maps can be saved remotely and loaded more than HTTP.
  • The --unstable flag is no extended necessary for CLI attributes the flag now controls only the availability of unstable runtime APIs.

Copyright © 2021 IDG Communications, Inc.

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