wasm-bindgen
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Published
20 hours ago •
rustwasm
rustwasm
Jest failures
Describe the Bug
We're currently jest-testing a wasm-pack built library running inside of a Next.js application.
Build target is web.
Jest version is 27.5.1.
The errors and solutions so far:
-
Cannot use 'import.meta' outside a module -
ReferenceError: TextEncoder is not defined- Used a jest setup file to polyfil with
web-encoding
- Used a jest setup file to polyfil with
-
TypeError: Cannot read properties of undefined (reading '__wbindgen_malloc')- No solution yet, but I'll keep you updated.
This seems to be caused by the deficiencies of jsdom.
Is it possible to solve all of these issues in some simple way? Should I be trying to build nodejs in jest and web everywhere else?
That does seem to work, but I haven't tried to find a way to achieve that automatically. I'll give that a go now.
Steps to Reproduce
Should be as simple as trying to use a web built lib in jest. Let me know if you have trouble.
Expected Behavior
Should just work in Jest.
Actual Behavior
Definitely doesn't just work in Jest.
