minitest setup - Ruby on Rails

I now do testing in Minitest. I came to think it’s better choice to start with minitest for testing Rails. And I thought it would make more sense when I stay out of Minitest::Spec.

my-experience-with-minitest-and-rspec by tenderlove

7-reasons-why-im-sticking-with-minitest-and-fixtures-in-rails by Brandon Hilkert

minitest-quick-reference by Matt Sears

Now I regenerate the setup process with

$ rails new setup_minitest --skip-test-unit
$ cd setup_minitest
$ rails -v
Rails 4.2.1
$ ruby -v
ruby 2.2.2

and then add minitest-rails gem (in test group; look

# Gemfile 
 source ''

+gem 'minitest-rails', group: :test

and go on generate “test” subdirectory

$ bundle install
$ bundle list minitest
$ bundle list minitest-rails

# now you have three more generators

$ rails generate minitest:install
      create  test/test_helper.rb

and this generated file looks like this

# test/test_helper.rb
ENV["RAILS_ENV"] = "test"
require File.expand_path("../../config/environment", __FILE__)
require "rails/test_help"
require "minitest/rails"

class ActiveSupport::TestCase
  fixtures :all

And now I am ready for minitest. For the last step, try a assert true test.

$ rails generate test_unit:model Roster
      create  test/models/roster_test.rb

and then uncomment the commented lines in this generated file

# test/models/roster_test.rb
require 'test_helper'

class RosterTest < ActiveSupport::TestCase
  test "the truth" do
    assert true

Run the test

$ rake db:migrate
$ rake test
Run options: --seed 48600

# Running:


Finished in 0.005423s, 184.3884 runs/s, 184.3884 assertions/s.

1 runs, 1 assertions, 0 failures, 0 errors, 0 skips

To add colors (for GREEN - RED - REFACTOR), I use minitest-reporters gem

# Gemfile 
 source ''

-gem 'minitest-rails', group: :test
+group :test do
+  gem 'minitest-rails'
+  gem 'minitest-reporters'

# test/test_helper.rb
 require "rails/test_help"
 require "minitest/rails"

+require "minitest/reporters"

I prefer the quiet “default reporter” style. And also I sometimes really need quiet backtrace.

By default, minitest-reporters has “progress reporter” style. And “you must manually tell minitest-reporters which filter to use.”

# config/initializers/backtrace_silencers.rb
+Rails.backtrace_cleaner.add_silencer { |line| line =~ /rbenv/ }

# test/test_helper.rb
 require "minitest/reporters"
+ => true),
+  ENV,
+  Minitest.backtrace_filter

If one more thing, lot of times I use guard-minitest for time saving.

# Gemfile 
+group :development do
+  gem 'guard'
+  gem 'guard-minitest'

And finish its setup, on command line

$ bundle install
$ guard init
19:16:50 - INFO - Writing new Guardfile to /Users/.../setup_minitest/Guardfile
19:16:50 - INFO - minitest guard added to Guardfile, feel free to edit it

And uncomment code lines on this generated Guardfile accordingly. My Rails version is over 4 and I do not use minitest spec.

# Guardfile
guard :minitest do
  # with Minitest::Unit
  watch(%r{^lib/(.*/)?([^/]+)\.rb$}) { |m| "test/#{m[1]}test_#{m[2]}.rb" }
  watch(%r{^test/test_helper\.rb$}) { 'test' }

  # Rails 4
  watch(%r{^app/(.+)\.rb$}) { |m| "test/#{m[1]}_test.rb" }
  watch(%r{^app/controllers/application_controller\.rb$}) { 'test/controllers' }
  watch(%r{^app/controllers/(.+)_controller\.rb$}) { |m| "test/integration/#{m[1]}_test.rb" }
  watch(%r{^app/views/(.+)_mailer/.+}) { |m| "test/mailers/#{m[1]}_mailer_test.rb" }
  watch(%r{^lib/(.+)\.rb$}) { |m| "test/lib/#{m[1]}_test.rb" }
  watch(%r{^test/test_helper\.rb$}) { 'test' }

Now I work with Guard on another terminal window.

$ guard
19:25:58 - INFO - Guard::Minitest 2.4.4 is running, with Minitest::Unit 5.6.1!
19:25:58 - INFO - Running: all tests

# Running tests with run options --seed 57094:


Finished tests in 0.004841s, 206.5644 tests/s, 206.5644 assertions/s.

1 tests, 1 assertions, 0 failures, 0 errors, 0 skips

19:26:02 - INFO - Guard is now watching at '/Users/ugp/tiny_test_apps/setup_minitest'
[1] guard(main)> exit

19:26:05 - INFO - Bye bye...

If another, I may want to do feature test with Capybara, so I add minitest-rails-capybara gem.

# Gemfile
 group :test do
   gem 'minitest-rails'
   gem 'minitest-reporters'
+  gem 'minitest-rails-capybara'

# test/test_helper.rb
 require "rails/test_help"
 require "minitest/rails"

+require "minitest/rails/capybara"

# Rakefile"test:features" => "test:prepare") do |t|
  t.pattern = "test/features/**/*_test.rb"
Rake::Task["test:run"].enhance ["test:features"]

Now I must stop setting up and go back to work, write some test.


Now read this

install zsh ubuntu 14.04 LTS

What I did is… open ubuntu software center and install “Shell with lots of features” (the first one on top when search by “zsh”) then did this (alternate way to install zsh) and, got “don’t have to” message. $ sudo apt-get update... Continue →