@qntm-code/utils
Version:
A collection of useful utility functions with associated TypeScript types. All functions have been unit tested.
70 lines (69 loc) • 2.46 kB
JavaScript
import { isEmpty } from './isEmpty';
describe('isEmpty', () => {
it('should return true if value is ""', () => {
const value = '';
expect(isEmpty(value)).toBe(true);
});
it('should return true if value is ""', () => {
const value = ' ';
expect(isEmpty(value)).toBe(true);
});
it('should return false if value is a non empty string', () => {
const value = 'yes';
expect(isEmpty(value)).toBe(false);
});
it('should return true if value is undefined', () => {
const value = undefined;
expect(isEmpty(value)).toBe(true);
});
it('should return true if value is not provided', () => {
let value;
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
expect(isEmpty(value)).toBe(true);
});
it('should return true if value is undefined', () => {
const value = undefined;
expect(isEmpty(value)).toBe(true);
});
it('should return true if value is null', () => {
const value = null;
expect(isEmpty(value)).toBe(true);
});
it('should return true if value is an empty array', () => {
const value = [];
expect(isEmpty(value)).toBe(true);
});
it('should return false if value is not an empty array', () => {
const value = ['a'];
expect(isEmpty(value)).toBe(false);
});
it('should return true if value is an empty object', () => {
const value = {};
expect(isEmpty(value)).toBe(true);
});
it('should return false if value is not an empty object', () => {
const value = { a: 'a' };
expect(isEmpty(value)).toBe(false);
});
it('should return false if value is a number', () => {
const value = 1;
expect(isEmpty(value)).toBe(false);
});
it('should return true if value is an empty set', () => {
const value = new Set();
expect(isEmpty(value)).toBe(true);
});
it('should return false if value is not an empty set', () => {
const value = new Set(['a']);
expect(isEmpty(value)).toBe(false);
});
it('should return true if value is an empty map', () => {
const value = new Map();
expect(isEmpty(value)).toBe(true);
});
it('should return false if value is not an empty map', () => {
const value = new Map([['a', 'a']]);
expect(isEmpty(value)).toBe(false);
});
});