test(Article): add partial Article snapshot testing

src/components/Article/Article.test.tsx

@@ -5,23 +5,26 @@ import Article from './Article';
 describe('Article', () => {
   const commentUrl = 'https://example.com';
   const socialUrl = 'https://example.com';
-  const post = {
+  const basePost = {
     slug: '/reduxBasicNotes/',
+    timeToRead: 8,
+    excerpt: 'Redux Basic Notes Basic Concepts',
+    toc: 'Redux Basic Notes ToC',
+    html: '<h1>Redux Basic Notes</h1>',
+  };
+  const post = {
+    ...basePost,
     title: 'Redux Basic Notes',
     subtitle: 'Be a Stupid Learner',
     author: 'Sabertaz',
+    date: '2018-08-08T00:00:00.000Z',
     tags: [
       'Redux',
       'React',
       'JavaScript',
       'Frontend Development',
       'Web Development',
     ],
-    date: '2018-08-08T00:00:00.000Z',
-    timeToRead: 8,
-    excerpt: 'Redux Basic Notes Basic Concepts',
-    toc: 'Redux Basic Notes ToC',
-    html: '<h1>Redux Basic Notes</h1>',
     prevPost: {
       slug: '/javascriptBasicNotes/',
       title: 'JavaScript Basic Notes',
@@ -40,4 +43,17 @@ describe('Article', () => {
       .toJSON();
     expect(tree).toMatchSnapshot();
   });
+
+  test('should render correctly without partial data (snapshot)', () => {
+    const tree = renderer
+      .create(
+        <Article
+          post={basePost}
+          commentUrl={commentUrl}
+          socialUrl={socialUrl}
+        />
+      )
+      .toJSON();
+    expect(tree).toMatchSnapshot();
+  });
 });