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module Shoulda # :nodoc:
module Matchers
module ActionController # :nodoc:
# Ensures that the controller rendered with the given layout.
#
# Example:
#
# it { should render_with_layout }
# it { should render_with_layout(:special) }
# it { should_not render_with_layout }
def render_with_layout(expected_layout = nil)
RenderWithLayoutMatcher.new(expected_layout).in_context(self)
end
class RenderWithLayoutMatcher # :nodoc:
def initialize(expected_layout)
unless expected_layout.nil?
@expected_layout = expected_layout.to_s
end
end
# Used to provide access to layouts recorded by
# ActionController::TemplateAssertions in Rails 3
def in_context(context)
@context = context
self
end
def matches?(controller)
@controller = controller
rendered_with_layout? && rendered_with_expected_layout?
end
def failure_message
"Expected #{expectation}, but #{result}"
end
def negative_failure_message
"Did not expect #{expectation}, but #{result}"
end
def description
description = "render with "
if @expected_layout.nil?
description << "a layout"
else
description << "the #{@expected_layout.inspect} layout"
end
description
end
private
def rendered_with_layout?
!rendered_layouts.empty?
end
def rendered_with_expected_layout?
if @expected_layout.nil?
true
else
rendered_layouts.include?(@expected_layout)
end
end
def rendered_layouts
recorded_layouts.keys.compact.map { |layout| layout.sub(%r{^layouts/}, '') }
end
def recorded_layouts
if @context
@context.instance_variable_get('@layouts')
else
{}
end
end
def expectation
"to #{description}"
end
def result
if rendered_with_layout?
"rendered with " + rendered_layouts.map(&:inspect).join(", ")
else
"rendered without a layout"
end
end
end
end
end
end
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