Merge pull request #44 from unity-template:Genluo/issue43

test: 💍 针对Utils中的dom添加测试用例，提升测试覆盖度  (#43)

Author: Genluo

__test__/dom/lock.test.ts

@@ -0,0 +1,50 @@
+import { dom } from '../../src/index';
+
+const { pageLock, unLockPage } = dom;
+
+const recyclerview = document.createElement('div');
+recyclerview.setAttribute('id', 'recyclerview');
+
+describe('test lock page', () => {
+  afterAll(() => {
+    document.body.innerHTML = '';
+  });
+  it('should lock page', () => {
+    expect.assertions(2);
+    pageLock();
+    expect(document.body.style.height).toEqual('100%');
+    expect(document.body.style.overflow).toEqual('hidden');
+  });
+
+  it('should lock page in recyclerview', () => {
+    document.body.appendChild(recyclerview);
+    expect.assertions(2);
+    pageLock();
+    expect(recyclerview.style.height).toEqual('100%');
+    expect(recyclerview.style.overflow).toEqual('hidden');
+  });
+});
+
+
+describe('test unlock page', () => {
+  afterAll(() => {
+    document.body.innerHTML = '';
+  });
+  it('should unlock page', () => {
+    expect.assertions(2);
+    pageLock();
+    expect(document.body.style.height).toEqual('100%');
+    unLockPage();
+    expect(document.body.style.height).toEqual('auto');
+  });
+
+
+  it('should unlock page in recyclerview', () => {
+    document.body.appendChild(recyclerview);
+    expect.assertions(2);
+    pageLock();
+    expect(recyclerview.style.height).toEqual('100%');
+    unLockPage();
+    expect(recyclerview.style.height).toEqual('auto');
+  });
+});