13 lines
541 B
JavaScript
13 lines
541 B
JavaScript
const expect = require('expect');
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const standardDeviation = require('./standardDeviation.js');
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test('standardDeviation is a Function', () => {
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expect(standardDeviation).toBeInstanceOf(Function);
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});
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test('Returns the standard deviation of an array of numbers', () => {
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expect(standardDeviation([10, 2, 38, 23, 38, 23, 21])).toBeCloseTo(13.284434142114991, 5);
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});
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test('Returns the standard deviation of an array of numbers', () => {
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expect(standardDeviation([10, 2, 38, 23, 38, 23, 21], true)).toBeCloseTo(12.29899614287479, 5);
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});
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