13 lines
528 B
JavaScript
13 lines
528 B
JavaScript
const expect = require('expect');
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const binarySearch = require('./binarySearch.js');
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test('binarySearch is a Function', () => {
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expect(binarySearch).toBeInstanceOf(Function);
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});
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t.equal(binarySearch([1, 4, 6, 7, 12, 13, 15, 18, 19, 20, 22, 24], 6), 2, 'Finds item in array');
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t.equal(binarySearch([1, 4, 6, 7, 12, 13, 15, 18, 19, 20, 22, 24], 21), -1, 'Returns -1 when not found');
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t.equal(binarySearch([], 21), -1, 'Works with empty arrays');
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t.equal(binarySearch([1], 1), 0, "Works for one element arrays");
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