Description
openedon Jan 16, 2021
🐛 Bug Report
I'm able to load an es6 module with Node, but I'm unable to load the same module when running with Jest. When I try loading the module with Jest, I get the following error:
node --experimental-modules --experimental-wasm-modules --experimental-vm-modules node_modules/.bin/jest
(node:72954) ExperimentalWarning: VM Modules is an experimental feature. This feature could change at any time
(Usenode --trace-warnings ...
to show where the warning was created)
FAIL tests/test_jest.test.mjs
● Test suite failed to run/Users/me/projects/bin_packing/jest-wasm/node_modules/bin_packer_3d/bin_packer_3d_wasm_bg.wasm:1 ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){ SyntaxError: Invalid or unexpected token at Runtime.createScriptFromCode (node_modules/jest-runtime/build/index.js:1350:14)
To Reproduce
Steps to reproduce the behavior:
- Clone this repo: https://github.com/modulitos/jest-wasm-esm-example
- run
npm run test-jest
Note that running npm run test-node
loads the module successfully in Node. So why does it fail with Jest?
Expected behavior
The module loads when running npm run test-jest
.
Link to repl or repo (highly encouraged)
https://github.com/modulitos/jest-wasm-esm-example
envinfo
❯ npx envinfo --preset jest
npx: installed 1 in 1.358sSystem:
OS: macOS 10.15.7
CPU: (4) x64 Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz
Binaries:
Node: 14.15.4 - ~/.asdf/installs/nodejs/14.15.4/bin/node
npm: 6.14.10 - ~/.asdf/installs/nodejs/14.15.4/bin/npm
npmPackages:
jest: ^26.6.3 => 26.6.3