35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
const expect = require('expect');
|
|
const {zip} = require('./_30s.js');
|
|
|
|
test('zip is a Function', () => {
|
|
expect(zip).toBeInstanceOf(Function);
|
|
});
|
|
test('zip([a, b], [1, 2], [true, false]) returns [[a, 1, true], [b, 2, false]]', () => {
|
|
expect(zip(['a', 'b'], [1, 2], [true, false])).toEqual([['a', 1, true], ['b', 2, false]]);
|
|
});
|
|
test('zip([a], [1, 2], [true, false]) returns [[a, 1, true], [undefined, 2, false]]', () => {
|
|
expect(zip(['a'], [1, 2], [true, false])).toEqual([['a', 1, true], [undefined, 2, false]]);
|
|
});
|
|
test('zip([]) returns []', () => {
|
|
expect(zip()).toEqual([]);
|
|
});
|
|
test('zip(123) returns []', () => {
|
|
expect(zip(123)).toEqual([]);
|
|
});
|
|
test('zip([a, b], [1, 2], [true, false]) returns an Array', () => {
|
|
expect(Array.isArray(zip(['a', 'b'], [1, 2], [true, false]))).toBeTruthy();
|
|
});
|
|
test('zip([a], [1, 2], [true, false]) returns an Array', () => {
|
|
expect(Array.isArray(zip(['a'], [1, 2], [true, false]))).toBeTruthy();
|
|
});
|
|
test('zip(null) throws an error', () => {
|
|
expect(() => {
|
|
zip(null);
|
|
}).toThrow();
|
|
});
|
|
test('zip(undefined) throws an error', () => {
|
|
expect(() => {
|
|
zip(undefined);
|
|
}).toThrow();
|
|
});
|