1 files changed, 235 insertions, 0 deletions
diff --git a/actionpack/test/abstract/layouts_test.rb b/actionpack/test/abstract/layouts_test.rb
new file mode 100644
index 0000000000..453d31826e
--- /dev/null
+++ b/actionpack/test/abstract/layouts_test.rb
@@ -0,0 +1,235 @@
+require 'abstract_unit'
+require 'active_support/core_ext/class/removal'
+
+module AbstractControllerTests
+  module Layouts
+
+    # Base controller for these tests
+    class Base < AbstractController::Base
+      include AbstractController::RenderingController
+      include AbstractController::Layouts
+
+      self.view_paths = [ActionView::FixtureResolver.new(
+        "layouts/hello.erb"                     => "With String <%= yield %>",
+        "layouts/hello_override.erb"            => "With Override <%= yield %>",
+        "layouts/abstract_controller_tests/layouts/with_string_implied_child.erb" =>
+                                                   "With Implied <%= yield %>",
+        "layouts/omg.erb"                       => "OMGHI2U <%= yield %>",
+        "layouts/with_false_layout.erb"         => "False Layout <%= yield %>"
+      )]
+
+      def self.controller_path
+        @controller_path ||= self.name.sub(/Controller$/, '').underscore
+      end
+      
+      def controller_path() self.class.controller_path end
+      
+      def render_to_body(options)
+        options[:_layout] = _default_layout({})
+        super
+      end
+    end
+    
+    class Blank < Base
+      self.view_paths = []
+      
+      def index
+        render :_template => ActionView::TextTemplate.new("Hello blank!")
+      end
+    end
+    
+    class WithString < Base
+      layout "hello"
+      
+      def index
+        render :_template => ActionView::TextTemplate.new("Hello string!")
+      end
+    end
+    
+    class WithStringChild < WithString
+    end
+    
+    class WithStringOverriddenChild < WithString
+      layout "hello_override"
+    end
+    
+    class WithNilChild < WithString
+      layout nil
+    end    
+    
+    class WithStringImpliedChild < WithString
+    end
+    
+    class WithChildOfImplied < WithStringImpliedChild
+    end
+    
+    class WithSymbol < Base
+      layout :hello
+      
+      def index
+        render :_template => ActionView::TextTemplate.new("Hello symbol!")
+      end
+    private  
+      def hello
+        "omg"
+      end
+    end
+    
+    class WithSymbolReturningString < Base
+      layout :no_hello
+      
+      def index
+        render :_template => ActionView::TextTemplate.new("Hello missing symbol!")
+      end
+    private  
+      def no_hello
+        nil
+      end
+    end
+    
+    class WithSymbolReturningNil < Base
+      layout :nilz
+      
+      def index
+        render :_template => ActionView::TextTemplate.new("Hello nilz!")
+      end
+      
+      def nilz() end
+    end
+    
+    class WithSymbolReturningObj < Base
+      layout :objekt
+      
+      def index
+        render :_template => ActionView::TextTemplate.new("Hello nilz!")
+      end
+      
+      def objekt
+        Object.new
+      end
+    end    
+    
+    class WithSymbolAndNoMethod < Base
+      layout :omg_no_method
+      
+      def index
+        render :_template => ActionView::TextTemplate.new("Hello boom!")
+      end
+    end
+    
+    class WithMissingLayout < Base
+      layout "missing"
+      
+      def index
+        render :_template => ActionView::TextTemplate.new("Hello missing!")
+      end
+    end
+    
+    class WithFalseLayout < Base
+      layout false
+      
+      def index
+        render :_template => ActionView::TextTemplate.new("Hello false!")
+      end
+    end
+    
+    class WithNilLayout < Base
+      layout nil
+      
+      def index
+        render :_template => ActionView::TextTemplate.new("Hello nil!")
+      end
+    end
+    
+    class TestBase < ActiveSupport::TestCase
+      test "when no layout is specified, and no default is available, render without a layout" do
+        controller = Blank.new
+        controller.process(:index)
+        assert_equal "Hello blank!", controller.response_body
+      end
+      
+      test "when layout is specified as a string, render with that layout" do
+        controller = WithString.new
+        controller.process(:index)
+        assert_equal "With String Hello string!", controller.response_body
+      end
+      
+      test "when layout is specified as a string, but the layout is missing, raise an exception" do
+        assert_raises(ActionView::MissingTemplate) { WithMissingLayout.new.process(:index) }
+      end
+      
+      test "when layout is specified as false, do not use a layout" do
+        controller = WithFalseLayout.new
+        controller.process(:index)
+        assert_equal "Hello false!", controller.response_body
+      end
+      
+      test "when layout is specified as nil, do not use a layout" do
+        controller = WithNilLayout.new
+        controller.process(:index)
+        assert_equal "Hello nil!", controller.response_body
+      end
+      
+      test "when layout is specified as a symbol, call the requested method and use the layout returned" do
+        controller = WithSymbol.new
+        controller.process(:index)
+        assert_equal "OMGHI2U Hello symbol!", controller.response_body
+      end
+      
+      test "when layout is specified as a symbol and the method returns nil, don't use a layout" do
+        controller = WithSymbolReturningNil.new
+        controller.process(:index)
+        assert_equal "Hello nilz!", controller.response_body
+      end
+      
+      test "when the layout is specified as a symbol and the method doesn't exist, raise an exception" do
+        assert_raises(NoMethodError, /:nilz/) { WithSymbolAndNoMethod.new.process(:index) }
+      end
+      
+      test "when the layout is specified as a symbol and the method returns something besides a string/false/nil, raise an exception" do
+        assert_raises(ArgumentError) { WithSymbolReturningObj.new.process(:index) }
+      end
+      
+      test "when a child controller does not have a layout, use the parent controller layout" do
+        controller = WithStringChild.new
+        controller.process(:index)
+        assert_equal "With String Hello string!", controller.response_body
+      end
+      
+      test "when a child controller has specified a layout, use that layout and not the parent controller layout" do
+        controller = WithStringOverriddenChild.new
+        controller.process(:index)
+        assert_equal "With Override Hello string!", controller.response_body
+      end
+      
+      test "when a child controller has an implied layout, use that layout and not the parent controller layout" do
+        controller = WithStringImpliedChild.new
+        controller.process(:index)
+        assert_equal "With Implied Hello string!", controller.response_body
+      end
+      
+      test "when a child controller specifies layout nil, do not use the parent layout" do
+        controller = WithNilChild.new
+        controller.process(:index)
+        assert_equal "Hello string!", controller.response_body
+      end
+            
+      test "when a grandchild has no layout specified, the child has an implied layout, and the " \
+        "parent has specified a layout, use the child controller layout" do
+          controller = WithChildOfImplied.new
+          controller.process(:index)
+          assert_equal "With Implied Hello string!", controller.response_body
+      end
+      
+      test "raises an exception when specifying layout true" do
+        assert_raises ArgumentError do
+          Object.class_eval do
+            class ::BadOmgFailLolLayout < AbstractControllerTests::Layouts::Base
+              layout true
+            end
+          end
+        end
+      end
+    end
+  end
+end