I couldn't make it work with the Babel loader. There is a possible solution using ts-node as a loader. I didn't want to install another package, so I chose a different workaround. mocha-env.mjs is processed as a module thanks to the suffix, and it sets chai. expect globally, and then I updated tests to use the global expect. Please see https://github.com/chaijs/chai/issues/1568 [MAILPOET-6008]
10 lines
308 B
JavaScript
10 lines
308 B
JavaScript
import * as chai from 'chai';
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import register from '@babel/register';
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// Register Babel to transpile our tests
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register({ extensions: ['.js', '.jsx', '.ts', '.tsx'] });
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// Set up chai.expect globally due issues with ES modules
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// See https://github.com/chaijs/chai/issues/1568
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global.expect = chai.expect;
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