agency_spec.rb

describe Agency do
  before(:each) do
    puts "in before(:each)"
  end

  after(:each) do
    puts "in after(:each)"
  end

  before(:all) do
    puts "in evil before(:all)"
  end

  it "should be awesome" do
    1.should == 1
  end

  it "should be really cool" do
    2.should == 2
  end
end

nested_example_groups.rb

describe Agency do
  before(:each) do
    puts "in before(:each)"
  end

  before(:all) do
    puts "in evil before(:all)"
  end

  it "should be really cool" do
    2.should == 2
  end

  describe "a nested context" do
    it "should do something" do
      3.should == 3
    end
  end
end

spec_helper.rb

class << ActiveRecord::Base.connection
  [:begin, :commit, :rollback].each do |action|
    define_method("#{action}_db_transaction_with_logging") do
      puts "#{action} transaction"
      send "#{action}_db_transaction_without_logging"
    end
    alias_method_chain "#{action}_db_transaction", :logging
  end
end