Merge pull request #4 from loganhasson/add-test-suite

Add RSpec test suite and relevant development dependencies

.gitignore

@@ -15,3 +15,4 @@ spec/reports
 test/tmp
 test/version_tmp
 tmp
+*.sqlite3

.rspec

@@ -0,0 +1,2 @@
+--color
+--format documentation

Gemfile

@@ -1,4 +1,4 @@
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in rspec-set.gemspec
-gemspec
+gemspec

Rakefile

@@ -1 +1 @@
-require "bundler/gem_tasks"
+require "bundler/gem_tasks"

rspec-set.gemspec

@@ -22,4 +22,8 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency "bundler", "~> 1.3"
   spec.add_development_dependency "rake"
+  spec.add_development_dependency "rspec", "~> 2.14.1"
+  spec.add_development_dependency "database_cleaner"
+  spec.add_development_dependency "activerecord"
+  spec.add_development_dependency "sqlite3"
 end

spec/db/migrate/01_create_active_record_class_example.rb

@@ -0,0 +1,8 @@
+class CreateActiveRecordClassExample < ActiveRecord::Migration
+  def change
+    create_table :active_record_class_examples do |t|
+      t.string  :name
+      t.integer :age
+    end
+  end
+end

spec/fixtures/active_record_class_example.rb

@@ -0,0 +1,2 @@
+class ActiveRecordClassExample < ActiveRecord::Base
+end

spec/fixtures/non_active_record_class.rb

@@ -0,0 +1,2 @@
+class NonActiveRecordClass
+end

spec/rspec_set_spec.rb

@@ -0,0 +1,79 @@
+require 'spec_helper'
+
+describe 'including Set' do
+  it 'adds the ::set method to RSpec::Core::ExampleGroup' do
+    expect(RSpec::Core::ExampleGroup).to respond_to(:set)
+  end
+end
+
+describe 'without an ActiveRecord model' do
+  before do
+    @orig_stderr = $stderr
+    $stderr = StringIO.new
+  end
+
+  set(:my_object) { NonActiveRecordClass.new }
+
+  after do
+    $stderr = @orig_stderr
+  end
+
+  it "warns the user that Set only works with AR models" do
+    $stderr.rewind
+    expect($stderr.string.chomp).to eq(
+      "my_object is a NonActiveRecordClass - rspec-set works with ActiveRecord models only"
+    )
+  end
+end
+
+describe 'with an ActiveRecord model' do
+  before do
+    @orig_stderr = $stderr
+    $stderr = StringIO.new
+  end
+
+  set(:my_ar_object) do
+    ActiveRecordClassExample.create!(name: 'Person', age: 25)
+  end
+
+  after do
+    $stderr = @orig_stderr
+  end
+
+  it "doesn't give a warning to the user" do
+    $stderr.rewind
+    expect($stderr.string.chomp).to be_empty
+  end
+
+  it 'creates a method based on the argument to ::set' do
+    expect(self).to respond_to(:my_ar_object)
+  end
+end
+
+describe 'with a destroyed ActiveRecord model' do
+  set(:my_destroyed_object) do
+    ActiveRecordClassExample.create!(name: 'Alfred', age: 77)
+  end
+
+  it 'reloads a destroyed model' do
+    my_destroyed_object.destroy
+    expect(my_destroyed_object.persisted?).to be_false
+  end
+end
+
+describe 'with a stale model' do
+  set(:my_stale_object) do
+    ActiveRecordClassExample.create!(name: 'Old Name', age: 18)
+  end
+
+  it 'allows us to play with the model' do
+    my_stale_object.update(name: 'New Name')
+    expect(ActiveRecordClassExample.find(my_stale_object.id).name).to eq(
+      'New Name'
+    )
+  end
+
+  it 'reloads the stale model' do
+    expect(my_stale_object.name).to eq('Old Name')
+  end
+end

spec/spec_helper.rb

@@ -0,0 +1,58 @@
+require 'rspec-set'
+require 'database_cleaner'
+require 'active_record'
+
+require_relative './fixtures/non_active_record_class'
+require_relative './fixtures/active_record_class_example'
+
+RSpec.configure do |config|
+  config.treat_symbols_as_metadata_keys_with_true_values = true
+  config.run_all_when_everything_filtered = true
+  config.filter_run :focus
+
+  config.before(:suite) do
+    setup_database
+  end
+
+  config.after(:suite) do
+    destroy_database
+  end
+
+  config.before(:each) do
+    DatabaseCleaner.strategy = :transaction
+    DatabaseCleaner.start
+  end
+
+  config.after(:each) do
+    DatabaseCleaner.clean
+  end
+
+  config.order = 'random'
+end
+
+def db
+  ActiveRecord::Base.connection
+end
+
+def setup_database
+  ActiveRecord::Base.establish_connection(
+    :adapter => 'sqlite3',
+    :database => 'spec/db/rspec-set-test.sqlite3'
+  )
+
+  db.tables.each do |table|
+    db.execute("DROP TABLE #{table}")
+  end
+
+  Dir[File.join(File.dirname(__FILE__), "db/migrate", "*.rb")].each do |f| 
+    require f
+    migration = Kernel.const_get(f.split("/").last.split(".rb").first.gsub(/\d+/, "").split("_").collect{|w| w.strip.capitalize}.join())
+    migration.migrate(:up)
+  end
+end
+
+def destroy_database
+  db.tables.each do |table|
+    db.execute("DROP TABLE #{table}")
+  end
+end