Class: Spec::Rails::Example::ControllerExampleGroup

Inherits:
FunctionalExampleGroup show all
Defined in:
lib/spec/rails/example/controller_example_group.rb

Overview

Controller Examples live in $RAILS_ROOT/spec/controllers/.

Controller Examples use Spec::Rails::Example::ControllerExampleGroup, which supports running specs for Controllers in two modes, which represent the tension between the more granular testing common in TDD and the more high level testing built into rails. BDD sits somewhere in between: we want to a balance between specs that are close enough to the code to enable quick fault isolation and far enough away from the code to enable refactoring with minimal changes to the existing specs.

Isolation mode (default)

No dependencies on views because none are ever rendered. The benefit of this mode is that can spec the controller completely independent of the view, allowing that responsibility to be handled later, or by somebody else. Combined w/ separate view specs, this also provides better fault isolation.

Integration mode

To run in this mode, include the integrate_views declaration in your controller context:

describe ThingController do
  integrate_views
  ...

In this mode, controller specs are run in the same way that rails functional tests run - one set of tests for both the controllers and the views. The benefit of this approach is that you get wider coverage from each spec. Experienced rails developers may find this an easier approach to begin with, however we encourage you to explore using the isolation mode and revel in its benefits.

Expecting Errors

Rspec on Rails will raise errors that occur in controller actions and are not rescued or handeled with rescue_from.

Defined Under Namespace

Modules: ControllerInstanceMethods, TemplateIsolationExtensions

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from FunctionalExampleGroup

#assigns, #cookies, #flash, #orig_assigns, #params, #session, #setup

Methods inherited from ActionController::TestCase

#rescue_action_in_public!

Methods included from RoutingHelpers

#params_from, #route_for

Instance Attribute Details

#controller ⇒ Object (readonly)

Returns the value of attribute controller.



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# File 'lib/spec/rails/example/controller_example_group.rb', line 123

def controller
  @controller
end

#request ⇒ Object (readonly)

Returns the value of attribute request.



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# File 'lib/spec/rails/example/controller_example_group.rb', line 123

def request
  @request
end

#response ⇒ Object (readonly)

Returns the value of attribute response.



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# File 'lib/spec/rails/example/controller_example_group.rb', line 123

def response
  @response
end

Class Method Details

.controller_name(name) ⇒ Object

When you don’t pass a controller to describe, like this:

describe ThingsController do

… then you must provide a controller_name within the context of your controller specs:

describe "ThingController" do
  controller_name :thing
  ...



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# File 'lib/spec/rails/example/controller_example_group.rb', line 92

def controller_name(name)
  tests "#{name}_controller".camelize.constantize
end

.inherited(klass) ⇒ Object

:nodoc:



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# File 'lib/spec/rails/example/controller_example_group.rb', line 64

def inherited(klass) # :nodoc:
  klass.integrate_views(integrate_views?)
  klass.subject { controller }
  super
end

.integrate_views(integrate_views = true) ⇒ Object

Use integrate_views to instruct RSpec to render views in your controller examples in Integration mode.

describe ThingController do
  integrate_views
  ...

See Spec::Rails::Example::ControllerExampleGroup for more information about Integration and Isolation modes.



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# File 'lib/spec/rails/example/controller_example_group.rb', line 56

def integrate_views(integrate_views = true)
  @integrate_views = integrate_views
end

.integrate_views? ⇒ Boolean

:nodoc:

Returns:

  • (Boolean) 


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# File 'lib/spec/rails/example/controller_example_group.rb', line 60

def integrate_views? # :nodoc:
  @integrate_views
end

.set_description(*args) ⇒ Object

:nodoc:



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# File 'lib/spec/rails/example/controller_example_group.rb', line 70

def set_description(*args) # :nodoc:
  super
  if described_class && described_class.ancestors.include?(ActionController::Base)
    controller_klass = if superclass.controller_class.ancestors.include?(ActionController::Base)
      superclass.controller_class
    else
      described_class
    end
    tests controller_klass
  end
end

Instance Method Details

#bypass_rescue ⇒ Object

Bypasses any error rescues defined with rescue_from. Useful in cases in which you want to specify errors coming out of actions that might be caught by a rescue_from clause that is specified separately.

Note that this will override the effect of rescue_action_in_public



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# File 'lib/spec/rails/example/controller_example_group.rb', line 135

def bypass_rescue
  if ::Rails::VERSION::STRING >= '2.2'
    def controller.rescue_action(exception)
      raise exception
    end
  else
    def controller.rescue_action_with_handler(exception)
      raise exception
    end
  end
end

#integrate_views? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/spec/rails/example/controller_example_group.rb', line 125

def integrate_views?
  @integrate_views || self.class.integrate_views?
end