💎 Ruby Study

This is a safe place to learn Ruby, practice making mistakes, practice writing tests, and get comfortable writing Ruby code without the possibility of breaking prod.

Ruby Basics

Resources:

• Ruby Docs
• Ruby Funcs
• Ruby string methods
• HAML Ruby Gem
• Bundler Docs

Running Ruby code:

• to run a Ruby file:

ruby "name_of_your_file"  

• define a method:

def my_method(myinfo)
    puts myinfo
end
mymethod "my info goes here"

• "irb" stands for interactive Ruby. Can be used to create a Ruby environment in the terminal.
• installing a Gem from a local source

gem install --local path_to_gem/filename.gem

# can include in your Gem file 
gem "local_gem", :path => "../local_gem"

Testing

• In most cases "empty" and not "nil" for tests.
• How to run tests:

rails test

• Where to find tests:
• spec/spec_helper.rb | contains RSPec specific configs
• spec/rails_helper.rb | contains Rails specific configs

Types of tests

Unit Tests Models, individual units of the app. Ex: Ensuring validations are working... Functional Tests Controllers, is a function working? Ex: Preventing a non-logged in user from performing an action. Integration Tests Full feature testing, from start to finish. Ex: Testing a business process like a user signing up for an app.