const {castArray} = require('./_30s.js');

test('castArray is a Function', () => {
  expect(castArray).toBeInstanceOf(Function);
});
test('Works for single values', () => {
  expect(castArray(1)).toEqual([1]);
});
test('Works for arrays with one value', () => {
  expect(castArray([1])).toEqual([1]);
});
test('Works for arrays with multiple value', () => {
  expect(castArray([1, 2, 3])).toEqual([1, 2, 3]);
});
test('Works for strings', () => {
  expect(castArray('test')).toEqual(['test']);
});
test('Works for objects', () => {
  expect(castArray({})).toEqual([{}]);
});