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Algorithms and Data Structures implemented in JavaScript for beginners, following best practices.

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Add tests to Math (#423) * Add prettier config * test: add test to check for absolute function * chore: es5 to es6 * test: add test to check mean function * test: add test for sum of digit * test: add test for factorial * test: add test for fibonnaci * test: add test for find HCF * test: add test for lcm * test: add gridget test * test: add test for mean square error * test: add test for modular binary exponentiation * test: add tests for palindrome * test: add test for pascals triangle * test: add tests for polynomial * test: add tests for prime check * test: add tests for reverse polish notation * test: add tests for sieve of eratosthenes * test: add tests for pi estimation monte carlo method * chore: move tests to test folder * chore: fix standardjs errors
2020-10-11 19:47:49 +00:00
import { mean } from '../AverageMean'
describe('Tests for average mean', () => {
it('should be a function', () => {
expect(typeof mean).toEqual('function')
})
merge: Improve Mean method (#874)
2021-12-15 22:58:28 +05:30
it('should throw error for invalid input', () => {
expect(() => mean(123)).toThrow()
})
Add tests to Math (#423) * Add prettier config * test: add test to check for absolute function * chore: es5 to es6 * test: add test to check mean function * test: add test for sum of digit * test: add test for factorial * test: add test for fibonnaci * test: add test for find HCF * test: add test for lcm * test: add gridget test * test: add test for mean square error * test: add test for modular binary exponentiation * test: add tests for palindrome * test: add test for pascals triangle * test: add tests for polynomial * test: add tests for prime check * test: add tests for reverse polish notation * test: add tests for sieve of eratosthenes * test: add tests for pi estimation monte carlo method * chore: move tests to test folder * chore: fix standardjs errors
2020-10-11 19:47:49 +00:00
it('should return the mean of an array of numbers', () => {
const meanFunction = mean([1, 2, 4, 5])
expect(meanFunction).toBe(3)
})
merge: Improve Mean method (#874)
2021-12-15 22:58:28 +05:30
it('should return the mean of an array of numbers', () => {
const meanFunction = mean([10, 40, 100, 20])
expect(meanFunction).toBe(42.5)
})
fix: improve mean function with input validation and extended tests (#1785)
2025-09-04 07:01:22 +03:00
it('should return the number itself for a single-element array', () => {
const result = mean([5])
expect(result).toBe(5)
})
it('should throw error for empty array', () => {
expect(() => mean([])).toThrow()
})
it('should throw error for an array containing null', () => {
expect(() => mean([1, 2, null])).toThrow()
})
it('should throw error for an array containing booleans', () => {
expect(() => mean([1, 2, true])).toThrow()
})
it('should throw error for an array containing strings', () => {
expect(() => mean([1, 2, 'asd'])).toThrow()
})
it('should return the mean of an array with negative numbers', () => {
const result = mean([-1, -2, -3, -4])
expect(result).toBe(-2.5)
})
it('should return the mean of an array with floating-point numbers', () => {
const result = mean([1.5, 2.5, 3.5])
expect(result).toBe(2.5)
})
it('should return 0 for an array with zeros', () => {
const result = mean([0, 0, 0])
expect(result).toBe(0)
})
it('should handle very large numbers correctly', () => {
const result = mean([1000000000, 2000000000, 3000000000])
expect(result).toBe(2000000000)
})
it('should return correct mean for an array with integers and floating-point numbers', () => {
const result = mean([1, 2.5, 3])
expect(result).toBeCloseTo(2.1667, 4)
})
Add tests to Math (#423) * Add prettier config * test: add test to check for absolute function * chore: es5 to es6 * test: add test to check mean function * test: add test for sum of digit * test: add test for factorial * test: add test for fibonnaci * test: add test for find HCF * test: add test for lcm * test: add gridget test * test: add test for mean square error * test: add test for modular binary exponentiation * test: add tests for palindrome * test: add test for pascals triangle * test: add tests for polynomial * test: add tests for prime check * test: add tests for reverse polish notation * test: add tests for sieve of eratosthenes * test: add tests for pi estimation monte carlo method * chore: move tests to test folder * chore: fix standardjs errors
2020-10-11 19:47:49 +00:00
})
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