When attempting to follow example on database_cleaner's GitHub page, I encountered the following error from RSpec:
ActiveRecord::StatementInvalid:
SQLite3::SQLException: cannot start a transaction within a transaction: begin transaction
The configuration used in spec_helper.rb is:
require 'spork'
require 'database_cleaner'
Spork.prefork do
# .. snip
RSpec.configure do |config|
# .. snip
config.before(:suite) do
DatabaseCleaner.strategy = :transaction
DatabaseCleaner.clean_with(:truncation)
end
config.before(:each) do
DatabaseCleaner.start
end
config.after(:each) do
DatabaseCleaner.clean
end
end
end
Spork.each_run do
end
The accepted answer makes all tests slower (when it's not needed) by truncating after each one.
Just add
config.use_transactional_fixtures = false
when using database_cleaner.
If you have both config.use_transactional_fixtures = true and DatabaseCleaner.strategy = :transaction you're going to start a transaction inside another transaction and that's not allowed.
I found the solution to be changing the entire strategy to :truncation. Updated spec_helper:
require 'spork'
require 'database_cleaner'
Spork.prefork do
RSpec.configure do |config|
config.use_transactional_fixtures = false
config.before(:suite) do
DatabaseCleaner.strategy = :truncation
end
config.before(:each) do
DatabaseCleaner.start
end
config.after(:each) do
DatabaseCleaner.clean
end
end
end
Spork.each_run do
end
Related
I want to clear my test database before running the each spec files.
I am already using rspec with factory girl.
Thanks,
Hare
Add to RSpec.configure block in your spec_helper.rb
config.before(:suite) do
DatabaseCleaner.clean_with :truncation
end
config.before(:each) do
DatabaseCleaner.strategy = :transaction
end
config.before(:each) do
DatabaseCleaner.start
end
config.after(:each) do
DatabaseCleaner.clean
end
Must work
In your spec_helper.rb,
inside the RSpec.configure block
RSpec.configure do |config|
# ...
config.before(:suite) do
DatabaseCleaner.clean_with :transaction
end
config.before(:each) do
DatabaseCleaner.strategy = :transaction
end
config.before(:all) do
DatabaseCleaner.start
end
config.after(:all) do
DatabaseCleaner.clean
end
# ...
end
before(:all) and after(:all) runs for every spec file and not before and after the whole suite. So, for every spec file you will be able to clear database using any of the three strategies :transaction, :truncation, :deletion
This is what I typically do for DatabaseCleaner
# Database Cleaner
config.before(:suite) do
DatabaseCleaner.strategy = :transaction
DatabaseCleaner.clean_with(:truncation)
end
config.before(:each) do
DatabaseCleaner.start
end
config.after(:each) do
DatabaseCleaner.clean
end
That will make sure you have a clean database for each test.
Checkout a related, albeit old, article by Avdi for more info.
I have some services inside my app/services folder.Now I want to test these services, so I am using rspec and factorygirl. I am creating user with factoryGirl, but when i am running rspec it is showing me following error
Failure/Error: #user ||= FactoryGirl.create(:user)
ActiveRecord::RecordInvalid:
Validation failed: Email has already been taken
I am using database_cleaner gem to clean the database after each test.
Below is my config file
ENV['RAILS_ENV'] ||= 'test'
require File.expand_path('../../config/environment', __FILE__)
abort("The Rails environment is running in production mode!") if Rails.env.production?
require 'spec_helper'
require 'rspec/rails'
require 'factory_girl_rails'
require 'database_cleaner
ActiveRecord::Migration.maintain_test_schema!
RSpec.configure do |config|
config.include FactoryGirl::Syntax::Methods
config.fixture_path = "#{::Rails.root}/spec/fixtures"
config.include Devise::TestHelpers, type: :controller
config.use_transactional_fixtures = false
config.before(:suite) do
DatabaseCleaner.strategy = :transaction
DatabaseCleaner.clean_with(:truncation)
end
config.before(:each) do
DatabaseCleaner.start
end
config.after(:each) do
DatabaseCleaner.clean
end
config.infer_spec_type_from_file_location!
config.filter_rails_from_backtrace!
end
I don't know where i am going wrong.
You need to specify the strategy to use between each specs (transaction is a safe choice here):
RSpec.configure do |config|
config.before(:suite) do
DatabaseCleaner.clean_with(:truncation)
end
config.before(:each) do
DatabaseCleaner.strategy = :transaction
end
config.before(:each) do
DatabaseCleaner.start
end
config.after(:each) do
DatabaseCleaner.clean
end
end
I have two rake tasks in one file. seed and populate.
seed is creating a necessary data, and populate is populating sample data for my tests.
In my tests I am manipulating a database(adding the new entry, removing it and etc.). I am using Database cleaner gem to reseting the database However when I reset the database I need the populate data for the next test. I have the following setting but it is not working the database is still empty and the populate data is not there .
this is the spec/support/database_cleaner.rb
require 'rake'
load File.expand_path("../../../lib/tasks/my_tasks.rake", __FILE__)
RSpec.configure do |config|
config.use_transactional_fixtures = false
config.before(:suite) do
DatabaseCleaner.clean_with(:truncation)
end
config.before(:each) do
DatabaseCleaner.strategy = :transaction
end
config.before(:each, :js => true) do
DatabaseCleaner.strategy = :truncation
end
config.before(:each) do
DatabaseCleaner.start
Rake::Task.define_task(:environment)
Rake::Task['db:seed'].invoke
Rake::Task['db:populate'].invoke
end
config.after(:each) do
DatabaseCleaner.clean
end
end
spec/rails_helper.rb
# This file is copied to spec/ when you run 'rails generate rspec:install'
ENV['RAILS_ENV'] ||= 'test'
require 'rake'
require File.expand_path('../../config/environment', __FILE__)
# Prevent database truncation if the environment is production
abort("The Rails environment is running in production mode!") if Rails.env.production?
require 'spec_helper'
require 'factory_girl_rails'
require 'rspec/rails'
require 'capybara/poltergeist'
# Checks for pending migrations before tests are run.
# If you are not using ActiveRecord, you can remove this line.
ActiveRecord::Migration.maintain_test_schema!
Capybara.configure do |config|
config.default_wait_time = 20
end
RSpec.configure do |config|
# Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
#
# config.fixture_path = "#{::Rails.root}/spec/fixtures"
config.include FactoryGirl::Syntax::Methods
# If you're not using ActiveRecord, or you'd prefer not to run each of your
# examples within a transaction, remove the following line or assign false
# instead of true.
config.infer_spec_type_from_file_location!
end
I found a way around it but this is not perfect and I am still looking for the solution of this so please post an answer if you find it. I am not going to select this as the correct answer.
You need to place a content spec/support/database_cleaner.rb file into the spec/spec_helper.rb file.
RSpec.configure do |config|
.
.
.
config.use_transactional_fixtures = false
config.before(:suite) do
DatabaseCleaner.clean_with(:truncation)
end
config.before(:each) do
DatabaseCleaner.strategy = :transaction
end
config.before(:each, :js => true) do
DatabaseCleaner.strategy = :truncation
end
config.before(:each) do
DatabaseCleaner.start
Rake::Task.define_task(:environment)
Rake::Task['db:seed'].invoke
Rake::Task['db:populate'].invoke
end
config.after(:each) do
# DatabaseCleaner.clean
end
config.infer_spec_type_from_file_location!
end
Important: You need to comment or delete the: DatabaseCleaner.clean
I am getting the following error on executing the code.
No known ORM was detected! Is ActiveRecord, DataMapper, Sequel, MongoMapper, Mongoid, Moped, or CouchPotato, Redis or Ohm loaded? (DatabaseCleaner::NoORMDetected)
Can anyone pls suggest a solution for this.
spec_helper.rb:
ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
require 'capybara/rspec'
require 'database_cleaner'
DatabaseCleaner.strategy = :truncation
# Requires supporting ruby files with custom matchers and macros, etc,
# in spec/support/ and its subdirectories.
Dir[Rails.root.join("spec/support/database_cleaner.rb")].each {|f| require f}
RSpec.configure do |config|
config.mock_with :mocha
config.before(:each) do
DatabaseCleaner.clean
#Mongoid.master.collections.select {|c| c.name !~ /system/ }.each(&:drop) # transactional fixtures hack for mongo
end
config.expect_with :rspec do |c|
c.syntax = [:should, :expect]
end
config.mock_with :rspec do |mocks|
mocks.verify_partial_doubles = true
end
config.color = true
config.use_transactional_fixtures = false
end
Hope this helps. Here is how I have my (working) database cleaner configured:
I have no database_cleaner.rb. I configure everything in rails_helper.rb. This shouldn't matter, but you may want to try below code and see if it works before splitting it out.
Notice that I have DatabaseCleaner.strategy = :truncation in a before block
Here is the relevant part of my rails_helper.rb
RSpec.configure do |config|
config.use_transactional_fixtures = false
config.before(:suite) do
DatabaseCleaner.clean_with :truncation
end
config.before(:each) do |example|
if example.metadata[:js]
DatabaseCleaner.strategy = :truncation
else
DatabaseCleaner.strategy = :transaction
end
DatabaseCleaner.start
end
config.after(:each) do
DatabaseCleaner.clean
end
end
Add the following to your RSpec.configure block:
config.before(:suite) do
DatabaseCleaner.strategy = :transaction
DatabaseCleaner.clean_with(:truncation)
end
Also, to specify particular ORM, you can do this:
#How to specify particular orms
DatabaseCleaner[:active_record].strategy = :transaction
DatabaseCleaner[:mongo_mapper].strategy = :truncation
See this for more information.
Unable to clean data using database_cleaner.rb; throwing the following issue on running tests.
/Users/prashanth_sams/.rvm/gems/ruby-2.0.0-p598/gems/database_cleaner-1.3.0/lib/database_cleaner/base.rb:147:in
`autodetect': No known ORM was detected! Is ActiveRecord, DataMapper,
Sequel, MongoMapper, Mongoid, Moped, or CouchPotato, Redis or Ohm
loaded? (DatabaseCleaner::NoORMDetected)
spec_helper.rb
ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../config/environment", __FILE__)
require 'rspec/rails'
Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}
RSpec.configure do |config|
config.mock_with :rspec
config.use_transactional_fixtures = false
config.expect_with :rspec do |expectations|
expectations.include_chain_clauses_in_custom_matcher_descriptions = true
end
config.expect_with :rspec do |c|
c.syntax = [:should, :expect]
end
config.mock_with :rspec do |mocks|
mocks.verify_partial_doubles = true
end
config.color = true
Selenium::Application.reload_routes!
end
database_cleaner.rb
require 'database_cleaner'
DatabaseCleaner.strategy = :truncation
RSpec.configure do |config|
config.use_transactional_fixtures = false
config.before :each do
DatabaseCleaner.start
end
config.after :each do
DatabaseCleaner.clean
end
end
I had same issue on controller_spec.
'autodetect': No known ORM was detected! Is ActiveRecord, DataMapper, Sequel, MongoMapper, Mongoid, Moped, or CouchPotato, Redis or Ohm loaded? (DatabaseCleaner::NoORMDetected)
I resolved by requiring rails_helper file on controller spec.
require 'rails_helper'
In rails_helper.rb require file 'database_cleaner'.
require 'database_cleaner'
I had this issue (on Rails 5.1) and the reason was that I had
config.before(:suite) do
DatabaseCleaner.clean_with :truncation
end
config.before(:each) do
DatabaseCleaner.strategy = :transaction
end
config.before(:each) do
DatabaseCleaner.start
end
config.after(:each) do
DatabaseCleaner.clean
end
in my spec_helper.rb.
I put require 'database_cleaner in spec_helper.rb as well.
So eventually I moved both things to rails_helper.rb and that fixed the issue for me.
Use my setup, seems to work fine for RDBMS (checked on MySQL and Postgres), put it into your database_cleaner.rb:
RSpec.configure do |config|
config.use_transactional_fixtures = false
config.before(:suite) do
DatabaseCleaner.clean_with(:truncation)
end
config.before(:each) do
DatabaseCleaner.strategy = :transaction
end
# this may be needed for Capybara tests and for testing after_commit hooks
config.before(:each, strategy: :truncation) do
DatabaseCleaner.strategy = :truncation
end
config.before(:each) do
DatabaseCleaner.start
end
config.after(:each) do
DatabaseCleaner.clean
end
end
If you want to use truncation strategy, just use
describe 'something', strategy: :truncation or it 'something', strategy: truncation.