How do I speed up my RSpec test?
9 ways to speed up your RSpec tests
- Use RSpec 3 and the railless setup. In addition to all of its awesome features, we love RSpec 3 because it means you don’t need rails_helper.
- Have fewer dependencies.
- Simulacrum and piece.
- Configuration without database.
- Use factories or accessories.
- Use a quick test framework.
- Update your Ruby to 2.1.
- Spring, Guard.
Table of Contents
How do I create a test database in Rails?
- A simpler solution is to just run rake db:test:prepare . –
- I have no problem running rake db:test:prepare with Postgres.
- It seems that rake db:test:prepare is deprecated in Rails 4. –
- You can chain rake tasks like this: bundle exec rake db:drop db:create db:schema:load RAILS_ENV=test
How do I speed up a Rails test?
Load fewer dependencies for faster test suite startup time Project dependencies need to be loaded every time you start your test suite, fewer dependencies means faster startup. Keeping project dependencies to a minimum is always a good idea, not just for boot time.
How to test rail models with RSpec helper?
Add the rspec-rails helper to the Gemfile: Install the gems and complete the setup: Let’s generate this model using the Rails generator: After that, run the migration and prepare the database: For now, we’ll skip the offers and vendors and focus on the title, description, start date and end date.
Can a unit test require a database connection?
I do not agree. A test that requires a database connection is not a unit test, because the test, by its very nature, will have side effects. That doesn’t mean you can’t write an automated test, but such a test is by definition an integration test, exercising areas of your system beyond your code base. — KeithS Jul 30
How are the test classes that connect to a database?
There are answers to the question about how to test classes that connect to a database, for example, “Should service test classes connect…” and “Unit test: Database-coupled application”. So, in summary, let’s say you have a class A that needs to connect to a database.
What does RSpec semaphore do under the hood?
Under the hood, it combines test-driven development, which allows for short feedback loops, with domain-driven design and object-oriented design and analysis. As a development process, it allows stakeholders and developers to enjoy the benefits of short feedback cycles, writing just the right amount of code and design to make the software work.
Is Rspec a gem?
Description. rspec is a meta-gem, which depends on the rspec-core, rspec-expectations, and rspec-mocks gems. Each of these can be installed separately and loaded in isolation using require .
What must be included in a specification?
What must be included in a specification?
- price format.
- For Services: rates per day/per hour/all inclusive (total cost)
- Quality.
- Quantity.
- Vendor experience required.
- Size / dimensions.
- Performance.
- Installation / maintenance / service / warranty.
How do you write a project specification?
Here are seven ways to write better project specifications:
- Include use cases.
- The project specifications must be well organized.
- Make it a living document.
- Make it a formal document.
- Include statements about your rationale.
- Know when to write one.
- Get your team involved.
What is the best way to run RSpec examples?
If you want to run this code for each example (example = test in RSpec), you can use :each instead of :all. If you are testing different scenarios in your application, it can be useful to group related tests together. You can do this using a context block in RSpec. It is possible to disable a test for debugging purposes.
Is it possible to disable a test in RSpec?
If you are testing different scenarios in your application, it can be useful to group related tests together. You can do this using a context block in RSpec. It is possible to disable a test for debugging purposes. All you have to do is change it to xit for the tests you want to disable.
How to create a description block in RSpec?
Then you need to create a description block to bundle all your tests and tell RSpec which class you are testing. Next is the it block: # This is the name of the test, plus a way to group all the components of the test itself. The configuration is where you create any objects you need to create. It is the preparation phase.
How does the documentation format work in RSpec?
The documentation format uses your test descriptions to generate the result. RSpec comes with a very useful option for profiling your tests. Just by hovering over the profile indicator, you can see how long each test takes to run and fix the really slow ones. If playback doesn’t start shortly, try restarting your device.
There are several ways to reduce startup times in a Ruby on Rails project.
- Load fewer dependencies for faster test suite startup time.
- Reduce the time spent setting up tests.
- Factories or accessories.
- Use a quick test framework.
- When in doubt, measure!
How do I run a specific RSpec test?
RSpec can take a filename or directory name and execute the file or directory contents. Then you can do: rspec spec/jobs to run the tests found in the jobs directory. rspec spec/jobs spec/services to run only the tests found in the jobs and services directory.
Is there a way to profile tests in RSpec?
But there are alternative formatting options that you can use. You can enable them with the -f flag: the documentation format uses your test descriptions to generate output. RSpec comes with a very useful option for profiling your tests. Just by hovering over the profile indicator, you can see how long each test takes to run and fix the really slow ones.
What do you need to know about RSpec in Ruby?
You must request the rspec gem. Then you need to create a description block to bundle all your tests and tell RSpec which class you are testing. Next is the it block: # This is the name of the test, plus a way to group all the components of the test itself. The configuration is where you create any objects you need to create.
Can you have more than one theme in RSpec?
The only difference is that you can only have one subject, and it’s meant to be an instance of the main object you’re testing. RSpec already creates a default subject like this: This is called the “implied subject”. You can use it like this: You can give your theme a name: