Incidental Coverage

Definition:

Is it enough to know that your test suite encounters every line of code? Or don’t you want to be sure that it exercises every line? If you simply encounter the line without asserting that it produces the correct results, are you any better off?

Code Example:

require File.dirname(__FILE__) + '/../test_helper'

class ProductsControllerTest < ActionController::TestCase
  def test_should_get_index
    get :index
  end

  # ... remaining tests omitted
end

References:

Quality attributes

:octicon:`file-code;1em` - Code Example
:octicon:`comment-discussion;1em` - Cause and Effect
:octicon:`graph;1em` - Frequency
:octicon:`sync;1em` - Refactoring

Testing anti-patterns: How to fail with 100% test coverage :octicon:`file-code;1em` :octicon:`comment-discussion;1em` :octicon:`sync;1em`