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
24 lines
601 B
JavaScript
24 lines
601 B
JavaScript
const {uncurry} = require('./_30s.js');
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test('uncurry is a Function', () => {
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expect(uncurry).toBeInstanceOf(Function);
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});
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const add = x => y => z => x + y + z;
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const add1 = uncurry(add);
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const add2 = uncurry(add, 2);
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const add3 = uncurry(add, 3);
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test('Works without a provided value for n', () => {
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expect(add1(1)(2)(3)).toBe(6);
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});
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test('Works with n = 2', () => {
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expect(add2(1, 2)(3)).toBe(6);
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});
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test('Works with n = 3', () => {
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expect(add3(1, 2, 3)).toBe(6);
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});
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test('Throws RangeError if arguments are too few', () => {
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expect(() => {
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add2(2);
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}).toThrow(RangeError);
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});
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