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“How can you resize the browser window from a Capybara test before visiting the page under test?”

Interesting Things

Tommy had a suggestion for testing scopes in Rails controller tests.

Here is an example of the type of test that he does not enjoy writing:

<code>
it "scopes products to active and available" do
    not_active = Factory(:product, :active => false)
    not_available = Factory(:product, :available => false)
    active_available = Factory(:product, :active => true, :available => true)
    get :index
    assigns(:products).should_not include(not_active)
    assigns(:products).should_not include(not_available)
    assigns(:products).should include(active_available)
end
</code>

Here is a nice way that he found to write the same test:

<code>
it "scopes products to active and available" do
    get :index
    assigns(:products).should == assigns(:products).active
    assigns(:products).should == assigns(:products).available
end
</code>

The only question is what to do with pagination? A work-around is for the controller to do:

<code>
def index
  @products_scope = Product.active.available
  @products = @products_scope.paginate(:per_page => blah blah blah)
end
</code>