Upload 4.7

part4/bloglist/tests/list.test.js

@@ -0,0 +1,58 @@
+const listHelper = require('../utils/list_helper')
+
+const testBlogs = [
+  {
+    'title': 'My blog',
+    'author': 'Andrew',
+    'url': 'www.andrew.eu',
+    'likes': 1000,
+    'id': '64771b55a9c07824450982c5'
+  },
+  {
+    'title': 'My blog',
+    'author': 'Andrew',
+    'url': 'www.andrew.eu',
+    'likes': 3000,
+    'id': '64771b89a9c07824450982c8'
+  },
+  {
+    'title': 'Another blog 2',
+    'author': 'Hans',
+    'url': 'www.andrew.eu',
+    'likes': 5000,
+    'id': '64771caaa9c07824450982cb'
+  }
+]
+
+test('dummy returns one', () => {
+  const blogs = []
+
+  const result = listHelper.dummy(blogs)
+  expect(result).toBe(1)
+})
+
+describe('total likes', () => {
+  test('empty - zero', () => {
+    expect(listHelper.sumLikes([])).toBe(0)
+  })
+
+  test('one correct', () => {
+    expect(listHelper.sumLikes([testBlogs[0]])).toBe(1000)
+  })
+
+  test('sum correct', () => {
+    expect(listHelper.sumLikes(testBlogs)).toBe(9000)
+  })
+})
+
+test('favorite blog', () => {
+  expect(listHelper.favoriteBlog(testBlogs)).toEqual(testBlogs[2])
+})
+
+test('most blogs', () => {
+  expect(listHelper.mostBlogs(testBlogs)).toEqual({ author: 'Andrew', blogs: 2 })
+})
+
+test('most likes', () => {
+  expect(listHelper.mostLikes(testBlogs)).toEqual({ author: 'Hans', likes: 5000 })
+})