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
22 lines
937 B
JavaScript
22 lines
937 B
JavaScript
const {uniqueSymmetricDifference} = require('./_30s.js');
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test('uniqueSymmetricDifference is a Function', () => {
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expect(uniqueSymmetricDifference).toBeInstanceOf(Function);
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});
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test('Returns the symmetric difference between two arrays.', () => {
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expect(uniqueSymmetricDifference([1, 2, 3], [1, 2, 4])).toEqual([3, 4]);
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});
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test('Does not return duplicates from one array', () => {
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expect(uniqueSymmetricDifference([1, 2, 2], [1, 3, 1])).toEqual([2, 3]);
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});
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test('Works with different size arrays', () => {
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expect(uniqueSymmetricDifference([1, 2, 2, 4], [1, 3, 1, 4, 5, 6])).toEqual([2, 3, 5, 6]);
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});
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test('Works with different types in the same array', () => {
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expect(uniqueSymmetricDifference([1, 2, 'duplicate text', 'unique text'], [1, 3, 'duplicate text'])).toEqual([2, 'unique text', 3]);
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});
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test('Works when one array is empty', () => {
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expect(uniqueSymmetricDifference([1, 2, 2, 3], [])).toEqual([1, 2, 3]);
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});
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