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Better ESM support #1728

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Better ESM support #1728

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59764d8
Create node test
NullVoxPopuli Oct 14, 2023
5d6223d
update exports
NullVoxPopuli Oct 14, 2023
6886f36
Change comment
NullVoxPopuli Oct 14, 2023
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5 changes: 5 additions & 0 deletions src/export.js
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,11 @@ export default function exportQUnit (QUnit) {

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Do you know what it is about module.exports = QUnit; that doesn't work for ESM compat layers? It seems odd to assign module.exports = QUnit; but then (seemingly redundantly) also assign module.exports.test = QUnit.test; to itself. If the transformation layers are based on static analysis, that would explain it, but I thought they were runtime based?

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maybe. as I dug in to this, I think it'd be better to have actual separate builds -- and we're already in a good spot since it seems QUnit is written in ESM -- so we'd just emit a new bundle and wire up package.json#exports so that the import/require/etc are routed correctly.

related questions:

// For consistency with CommonJS environments' exports
module.exports.QUnit = QUnit;
// For allowing ESM imports
module.exports.todo = QUnit.todo;
module.exports.skip = QUnit.skip;
module.exports.test = QUnit.test;
module.exports.module = QUnit.module;

exportedModule = true;
}
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7 changes: 7 additions & 0 deletions test/es2018/explicit-imports.mjs
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@@ -0,0 +1,7 @@
import { module, test } from 'qunit';

module('ESM test suite', () => {
test('imports worked', function (assert) {
assert.true(true, 'an assertion');
});
});