jbdietrich / query_matchers

A set of RSpec matchers for Active Record queries

QueryMatchers

Match the number of queries performed in any block of code. Allows setting in place regression tests for database performance.

Installation

Add this line to your application's Gemfile:

gem 'query_matchers'

And then execute:

$ bundle

Or install it yourself as:

$ gem install query_matchers

Usage

require 'query_matchers'

describe "something" do
  include QueryMatchers
  
  it "works!" do
    expect { magician.magic! }.to execute_queries(43)
    expect { does_not_hit_the_database }.to execute_no_queries
    expect { hits_the_database_once }.to execute_one_query
  end
end

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request