[Improvement] Rebuild test system (#1051)

packages/utils/test/index.spec.js

@@ -0,0 +1,55 @@
+import deepClone from '../deep-clone';
+import { isAndroid, isDef, camelize, get } from '..';
+import { raf, cancel } from '../raf';
+
+test('deepClone', () => {
+  const a = { foo: 0 };
+  const b = { foo: 0, bar: 1 };
+  const fn = () => { };
+  const arr = [a, b];
+  expect(deepClone(a)).toEqual(a);
+  expect(deepClone(b)).toEqual(b);
+  expect(deepClone(fn)).toEqual(fn);
+  expect(deepClone(arr)).toEqual(arr);
+  expect(deepClone(undefined)).toEqual(undefined);
+  expect(deepClone(1)).toEqual(1);
+});
+
+test('isDef', () => {
+  expect(isDef(null)).toBeFalsy();
+  expect(isDef(undefined)).toBeFalsy();
+  expect(isDef(1)).toBeTruthy();
+  expect(isDef('1')).toBeTruthy();
+  expect(isDef({})).toBeTruthy();
+  expect(isDef(() => { })).toBeTruthy();
+});
+
+test('camelize', () => {
+  expect(camelize('ab')).toEqual('ab');
+  expect(camelize('a-b')).toEqual('aB');
+  expect(camelize('a-b-c-d')).toEqual('aBCD');
+  expect(camelize('a-b-')).toEqual('aB-');
+  expect(camelize('-a-b')).toEqual('AB');
+  expect(camelize('-')).toEqual('-');
+});
+
+test('get', () => {
+  expect(get({ a: 1 }, 'a')).toEqual(1);
+  expect(get({ a: { b: 2 }}, 'a.b')).toEqual(2);
+  expect(get({ a: { b: 2 }}, 'a.b.c')).toEqual('');
+});
+
+test('isAndroid', () => {
+  expect(isAndroid()).toBeFalsy();
+});
+
+test('raf', (done) => {
+  const spy = jest.fn();
+  raf(spy);
+
+  setTimeout(() => {
+    expect(spy.mock.calls.length).toBe(1);
+    cancel(1);
+    done();
+  }, 50);
+});