BE #4 functional test for POST method

test/routes/article.test.js

@@ -1,7 +1,7 @@
 const request = require("supertest");
 const app = require("../../app");
 
-describe("Test route /article", () => {
+describe("Test GET /article", () => {
   test("It should response 200 on GET method", done => {
     request(app)
       .get("/article")
@@ -10,4 +10,25 @@ describe("Test route /article", () => {
         done();
       });
   });
-});
+});
+
+
+const article = {
+    title: "Test: how to test express API POST request?",
+    body: ["<h2>Article body sub heading</h2>","<p>Article body paragraph</p>"]
+};
+
+/* POST /article */
+describe("Test POST /article", () => {
+    test("It should response 200 on POST method", done => {
+      request(app)
+        .post("/article")
+        .send(article)
+        .then(response => {
+            const respArticle=JSON.parse(response.text);
+            expect(response.statusCode).toBe(200);
+            expect(respArticle.title).toBe(article.title);
+            done();
+        });
+    });
+  });