Testing with Ruby on Rails

Posted January 4th, 2008 by manish
  1. From the moment we create a new application using the Rails command simply creates the test directory structure.
  2. Every time we run the generate script to create a model or a controller, Rails creates a test file to hold a corresponding test stub.
  3. A Rails test suite is split into three fundamental parts

          a. Unit Tests – Unit tests cover model-level functionality, which generally encompasses an application’s sore business logic.

         b. Functional Tests – Functional tests in Rails cover controller-level functionality and the accompanying views.

         c. Integration Tests – Integration testing goes beyond the relatively isolated approaches of functional and unit testing.

     4.  Here we take one example of test case for Event module.

require File.dirname(__FILE__) + ‘/../test_helper’ # is the help file.

class EventTest < Test::Unit::TestCase

fixtures:Events

def test_truth

assert true

end

# This part can we replace with our real tests.

end

 

5. How to run the Unit Test

We need to move to command prompt and there we need to move to the application root folder

And need to execute the command: $ rake test:units.

This command will execute all the test case located in the /test/unit/ folder one by one.

6. After run the Unit Test result

We can see the rake give us a summary on command prompt of our test execution.

The results suggest that a total of Tests, Assertions, Failures and Errors.

7. How to run the Functional Test

We need to move to command prompt and there we need to move to the application root folder

And need to execute the command: $ rake test:functionals.

This command will execute all the test case located in the /test/functional/ folder one by one.

8. After run the Functional Test result

We can see the rake give us a summary on command prompt of our test execution.

The results suggest that a total of Tests, Assertions, Failures and Errors.

9. How to run complete Test Suite.

We need to move to command prompt and there we need to move to the application root folder

And need to execute the command: $ rake test.

This command will run the all test suite.

10. Revisiting the Logs

We can took a brief look at the extensive logging functionality that Active Record provides. This gave us a glimpse into the kind of automation, in terms of SQL generation, that happens behind the scenes in Rails.

Summary

A Rails is useful for us. It provides us with the facility of writing a Test Script for Unit and Functional testing.

Simultaneously it provides us with the platform to generate output. We can run the multiple Test Script at one time.