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
12 lines
365 B
JavaScript
12 lines
365 B
JavaScript
const {pipeFunctions} = require('./_30s.js');
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test('pipeFunctions is a Function', () => {
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expect(pipeFunctions).toBeInstanceOf(Function);
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});
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const add5 = x => x + 5;
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const multiply = (x, y) => x * y;
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const multiplyAndAdd5 = pipeFunctions(multiply, add5);
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test('Performs left-to-right function composition', () => {
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expect(multiplyAndAdd5(5, 2)).toBe(15);
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});
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