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
234 B
JavaScript
9 lines
234 B
JavaScript
const {call} = require('./_30s.js');
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test('call is a Function', () => {
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expect(call).toBeInstanceOf(Function);
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});
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test('Calls function on given object', () => {
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expect(call('map', x => x * 2)([1, 2, 3])).toEqual([2, 4, 6]);
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});
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