rspec rails tutorial

This is a concise rspec guide written by David chelimsky. The original Article is here. Introduction To understand rspec, we need to first understand what is behaviour driven development (BDD), and BDD is an acceptance test driven planning ), domain driven design and agile development model of test driven development (TDD. Rspec provides TDD support for BDD dev

Tutorial on efficient unit tests on Ruby on Rails, rubyrails In the system developed by the author, a large amount of data needs to be analyzed, which not only requires accurate data analysis, but also requires a certain speed. Before writing the test code, I used several major methods to achieve this requirement. As you can imagine, the code is complex, difficult to maintain, and difficult to expand. Takin

: Seemingly write test code is time-consuming, in fact, in testing, deployment and subsequent extensions, the test code will save more time. Environment construction The author adopts the test environment is more popular general framework: RSpec + Factory Girl, and autotest automatic tool. RSpec is a descriptive language, which is easy to understand by describing system behavior in a workable example.

1. Auxiliary methods2. StringEnter "IRB" into the ruby command-line development environment, and the controller starts by executing "rails console" on the command line.(1) String connection>>"foo"+"bar"="foobar" (2) Interpolation by special syntax #{}>>first_name="Amy" ="Amy">>" #{first_name} Sun"+"Amy Sun "(3) The difference between a single-quote string and a double-quote string: Single-quote strings they really are literal values, contain only the

Before you start About this tutorial Ruby on Rails (rails) is a full-stack WEB application framework written in Ruby, and Ruby is a rich, free, extensible, portable, object-oriented scripting language. Rails is very popular among WEB application developers. With it, you can quickly and efficiently develop We

Tags: railsThere are 11 chapters in total, a simple Weibo system.The development is driven by testing, so there are a lot of test code in the book. At the beginning, I felt very uncomfortable. After a while, I still don't like this development method. Finally, I chose to organize the knowledge points in the book in my own way. That is to say, I separate the development part from the test part. After thinking about it, I think the knowledge points can be divided into the following four points.1.

When you read the 3rd chapter, the first time you run RSpec in the tutorial fails: E:\05 Create\code\temp\railstutorial\sample_app>rspec Spec/requests/static_pages_spec.rbE:/05 create/code/temp/railstutorial/sample_app/spec/spec_helper.rb:32:in ' block(2 levels) in From D:/app/coder/railsinstaller/ruby2.1.0/lib/ruby/gems/2.1.0/gems/

Tutorial on Ruby on Rails to implement the most basic user registration and login functions, rubyrails It is very convenient to implement the user registration and login functions in Rails. For example, you can use the Devise class to implement the complete function of the gem extension package. You can also use the has_secure_password that comes with

1, Cloud development environment, CLOUD9 (https://ide.c9.io/). The development environment is pre-installed with most of the software required for rails development, including Ruby, RubyGems, and git, and requires you to install rails yourself.(1) Installing rails: $gem Install rails-v 4.1.6(2) Create project: $

1. Goal: Mastering MVC and Rest, generators, migrations, routes, embedded RubyThis book deals with the Rails,ruby language, the test framework (minitest) that rails uses by default, the Unix command line, HTML,CSS, a small amount of javascript, and a bit of SQL.2. Demo Application:Hello_app (v. 1.3)Toy_app (2nd Chapter)Sample_app (chapters 3rd through 12th)3. The key to the success of Ruby on

described below:4. Rest Framework DescriptionRest is the abbreviation for representational state transfer, which means "presentation-level transformation", which is proposed by computer scientist Roy Fielding. Rest is an architectural approach for developing distributed, network-based systems and software programs, such as WWW and Web applications. In rails, rest means that most components, such as users and microblogs, are modeled, turned into resou

1. The microblog model is as follows:2, the creation of Weibo resources, the command is as follows:$ rails Generate scaffold micropost content:text User_id:integer #生成微博资源$ bundle EXEC Rake db:migrate #执行迁移, update the database, use the new data model3, the content of micro-blog restrictions(1) Limit the length of WeiboIn the APP/MODELS/MICROPOST.RBclass Micropost activerecord::base validates:content, length:{maximum: }end(2) Weibo cannot be emptyclas

Images can be said to be a critical part of any application. From social networks to a simple bug tracker, images play an important role. Managing images, however, is not an easy task and requires a lot of time and energy to plan ahead. This article demonstrates how to achieve this goal in rail. How do you handle your images and create multiple versions in the background? How to improve the performance of the page by compressing the image without compromising the image quality? These are the on

1, Purpose: Use Heroku to deploy the development environment to the production environment. Heroku is dedicated to deploying rails and other Web applications, and the process of deploying rails applications is straightforward-as long as the source code is incorporated into the GIT version control system.2. Build Heroku Deployment Environment(1) Heroku use PostgreSQL database, so to add PG to the production

to the browser.(1) Nesting:{ text-align: center;} . Center H1 { margin-bottom: 10px;}The nested format is as follows:{ text-align: Center; h1{ margin-bottom: 10px; } }{ float: left; margin-right: 10px;} { color: #fff; Text-decoration: none;}The nested format is as follows:{ float: left; margin-right: 10px; :hover {#在SCSS中, using conforming to a reference to the parent element color: #fff; Text-decoration: none; } }(2) Variables

(Chapter I. Summary)First step: Build the project skeleton$ Rails _4.1.6_ New Toy_appStep Two: Modify GemfileStep three: Install the gem$ bundle Install--without productionFourth step: Add the app to the GIT version control system$ git init$ git add-a$ git commit-m "Initialize repository"Fifth step: Push the code to the remote repository#在GitHub网站创建新的repository$ git Remote add origin [email Protected]:lihuasun/toy_app$ Git push-u origin--allSixth step