Upload 4.9

part4/bloglist/tests/blog_api.test.js

@@ -4,6 +4,14 @@ const app = require('../app')
 
 const api = supertest(app)
 
+const Blog = require('../models/blog')
+const helper = require('./test_helper')
+
+beforeEach(async () => {
+  await Blog.deleteMany({})
+  await Blog.insertMany(helper.initialBlogs)
+})
+
 test('blogs are returned as json', async () => {
   await api
     .get('/api/blogs')
@@ -11,6 +19,48 @@ test('blogs are returned as json', async () => {
     .expect('Content-Type', /application\/json/)
 })
 
+test('all blogs are returned', async () => {
+  const response = await api.get('/api/blogs')
+  expect(response.body).toHaveLength(helper.initialBlogs.length)
+})
+
+test('a specific blog is within the returned blogs', async () => {
+  const response = await api.get('/api/blogs')
+  const contents = response.body.map((r) => r.title)
+  expect(contents).toContain('Another blog')
+})
+
+test('a valid blog can be added ', async () => {
+  const newBlog = {
+    title: 'Test',
+    author: 'Tester',
+    url: 'http:/test.com',
+    likes: 999
+  }
+
+  await api
+    .post('/api/blogs')
+    .send(newBlog)
+    .expect(201)
+    .expect('Content-Type', /application\/json/)
+
+  const blogsAtEnd = await helper.blogsInDb()
+  expect(blogsAtEnd).toHaveLength(helper.initialBlogs.length + 1)
+  const contents = blogsAtEnd.map((n) => n.title)
+  expect(contents).toContain('Test')
+})
+
+test('blog without content is not added', async () => {
+  const newBlog = {
+    likes: 999
+  }
+
+  await api.post('/api/blogs').send(newBlog).expect(400)
+
+  const blogsAtEnd = await helper.blogsInDb()
+  expect(blogsAtEnd).toHaveLength(helper.initialBlogs.length)
+})
+
 afterAll(async () => {
   await mongoose.connection.close()
-})
+})