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Description
I am trying to use type=module in package.json
and I have a setup file that is loaded in jest config.
and loading jest with this
NODE_OPTIONS="--experimental-vm-modules --loader=testdouble" npx jest
And I get this error message
$ NODE_OPTIONS="--experimental-vm-modules --loader=testdouble" npx jest
Build finished; total time 160ms, incrementality 100.0%. Outputs:
(node:1) 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:1) DeprecationWarning: Obsolete loader hook(s) supplied and will be ignored: getFormat, getSource
(node:17) 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:17) DeprecationWarning: Obsolete loader hook(s) supplied and will be ignored: getFormat, getSource
(node:17) ExperimentalWarning: VM Modules is an experimental feature. This feature could change at any time
(node:71) 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:72) 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:78) 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:71) DeprecationWarning: Obsolete loader hook(s) supplied and will be ignored: getFormat, getSource
(node:78) DeprecationWarning: Obsolete loader hook(s) supplied and will be ignored: getFormat, getSource
(node:72) DeprecationWarning: Obsolete loader hook(s) supplied and will be ignored: getFormat, getSource
(node:71) ExperimentalWarning: VM Modules is an experimental feature. This feature could change at any time
(node:78) ExperimentalWarning: VM Modules is an experimental feature. This feature could change at any time
(node:72) ExperimentalWarning: VM Modules is an experimental feature. This feature could change at any time
PASS dist/add.test.js
FAIL dist/services/xxx/xxx.test.js
● Test suite failed to run
testdouble ESM loader not loaded. You cannot replace ES modules without a loader. Run node with `--loader=testdouble`.
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