83a6a6ea32
* chore: make aware eslint that we use jest By setting up the jest environment, we no longer need to declare the 'test' global in the configuration. * chore: don't need to import expect, it's a jest environment global * chore: don't need to import expect when creating undefined test
9 lines
263 B
JavaScript
9 lines
263 B
JavaScript
const {coalesce} = require('./_30s.js');
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test('coalesce is a Function', () => {
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expect(coalesce).toBeInstanceOf(Function);
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});
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test('Returns the first non-null/undefined argument', () => {
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expect(coalesce(null, undefined, '', NaN, 'Waldo')).toEqual('');
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});
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