Unknown file extension ".ts" for

[Alexis Tyler]

Description

While trying to use esno with typescript I'm getting stuck on an error.

Package version

japa 0.14.1

Error Message & Stack Trace

❯ esno .\bin\test.ts

   Unknown file extension ".ts" for C:\Users\xo\code\omgimalexis\scratch-pad\tests\maths.spec.ts

   at async importFiles C:/Users/xo/code/omgimalexis\scratch-pad/node_modules/@japa/runner/build/index.js:241
    236|              if (isFileAllowed(file, runnerOptions.filters.files)) {
    237|                  await runnerOptions.importer(file);
    238|              }
    239|          }
    240|          else {
  > 241|              await runnerOptions.importer(file);
    242|          }
    243|      }
    244|  }
    245|  /**
    246|   * Run japa tests

Relevant Information

I needed to apply the fix from #2 first.

[Alexis Tyler]

Seems using esmo solves the issue though I do get the experimental loader warning which I'm hoping we can supress?

❯ esmo .\bin\test.ts
(node:40156) ExperimentalWarning: --experimental-loader is an experimental feature. This feature could change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
(node:40156) DeprecationWarning: Obsolete loader hook(s) supplied and will be ignored: getFormat, transformSource

Maths.add (tests\maths.spec.ts)
  √ add two numbers (2ms)

 PASSED 

total        : 1
passed       : 1
duration     : 6ms

[Alexis Tyler]

Actually this doesn't fix the issue since I now can't mock dependencies since everything is being imported as an ES module.

   ES Modules cannot be stubbed

[Harminder Virk]

Seems more like an issue to be reported with Esmo. Japa itself is not registering any loader hooks with Node.js. https://github.com/antfu/esno/issues/21