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Ruby Build a Todo List Application with Rails 4 Build a Todo List Application with Rails 4 Write Our First Tests

sungwon choe
sungwon choe
15,044 Points
Posted by sungwon choe
sungwon choe
15,044 Points

"Write Our First Tests" no title failures even after validation in Rails 4.1.4

In the video, the rspec test for it "displays an error when the todo list has no title" passes after adding validations to the model: 

class TodoList < ActiveRecord::Base
    validates :title, presence: true
end

But mine still fails. I guess this is somehow related to using a different Rails version, but how?

3 Answers

sungwon choe
sungwon choe
15,044 Points
sungwon choe
sungwon choe
15,044 Points

Ah man, I found my own mistake. I had:

expect(TodoList).to eq(0)

instead of

expect(TodoList.count).to eq(0)
J Scott Erickson
J Scott Erickson
11,883 Points
J Scott Erickson
J Scott Erickson
11,883 Points

Most likely that the flash message isn't being set properly. Can we see the relevant code? (controller / spec file)

J Scott Erickson
J Scott Erickson
11,883 Points
J Scott Erickson
J Scott Erickson
11,883 Points

I may have read wrong the first time. Its either the flash message or possibly the spec test itself? Probably need to see the spec.

sungwon choe
sungwon choe
15,044 Points
sungwon choe
sungwon choe
15,044 Points

Hi J Scott, Thanks very much for the reply. My create_spec.rb is as follows.

require 'spec_helper'

describe "Creating todo lists" do
    it "redirects to the todo list index page on success" do
        visit "/todo_lists"
        click_link "New Todo list"
        expect(page).to have_content("New todo_list")

        fill_in "Title", with: "My todo list"
        fill_in "Description", with: "This is what I'm doing today"
        click_button "Create Todo list"
        expect(page).to have_content("My todo list")
    end

    it "displays an error when the todo list has no title" do
        expect(TodoList).to eq(0)

        visit "/todo_lists"
        click_link "New Todo list"
        expect(page).to have_content("New todo_list")

        fill_in "Title", with: ""
        fill_in "Description", with: "This is what I'm doing today"
        click_button "Create Todo list"

        expect(page).to have_content("error")

        expect(TodoList).to eq(0)

        visit "/todo_lists"
        expect(page).to_not have_content("This is what I'm doing today")
    end
end
Anthony Ho
Anthony Ho
10,228 Points
Anthony Ho
Anthony Ho
10,228 Points

Hi Sungwon Choe, I'm having no title after validation on rails. I've even used your create_spec.rb file, but it still fails. I can't figure out what's wrong.

sungwon choe
sungwon choe
15,044 Points
sungwon choe
sungwon choe
15,044 Points

Hi Anthony,

My create_spec.rb above gets the error unless you change: 

expect(TodoList).to eq(0)

to

expect(TodoList.count).to eq(0)

because I was comparing an object (TodoList) to a number (0) instead of a number (TodoList.count) to a number (0).

Did you try that?

Anthony Ho
Anthony Ho
10,228 Points
Anthony Ho
Anthony Ho
10,228 Points

Yeh I've done it. Turns I had expect(Todolist.count).to eq(0) instead of

expect(TodoList.count).to eq(0)

It took a while to find that annoying bug.