Rake: Write out a database.yml with settings for a test environment

tasks.rake

namespace :db do
  namespace :test do
    desc "Write out a database.yml with settings for a test environment"
    task :config do
      File.open(Rails.root + "config/database.yml", "w") do |config|
        config << <<-END_YAML.gsub(/^ {10}/, '')
          development:
            adapter: sqlite3
            database: db/development.sqlite3
            pool: 5
            timeout: 5000
          
          test:
            adapter: sqlite3
            database: db/test.sqlite3
            pool: 5
            timeout: 5000
        END_YAML
      end
    end
  end
end