Backport #5808

df36c5f - Fix assert_template assertion with :layout option
4bd05a7 - Fix assert_template :layout => nil assertion
0d19a08 - Improve assert_template layout checking

actionpack/lib/action_controller/test_case.rb

@@ -20,7 +20,12 @@ def setup_subscriptions
 
       ActiveSupport::Notifications.subscribe("render_template.action_view") do |name, start, finish, id, payload|
         path = payload[:layout]
-        @layouts[path] += 1
+        if path
+          @layouts[path] += 1
+          if path =~ /^layouts\/(.*)/
+            @layouts[$1] += 1
+          end
+        end
       end
 
       ActiveSupport::Notifications.subscribe("!render_template.action_view") do |name, start, finish, id, payload|
@@ -56,6 +61,15 @@ def process(*args)
     #   # assert that the "new" view template was rendered
     #   assert_template "new"
     #
+    #   # assert that the layout 'admin' was rendered
+    #   assert_template :layout => 'admin'
+    #   assert_template :layout => 'layouts/admin'
+    #   assert_template :layout => :admin
+    #
+    #   # assert that no layout was rendered
+    #   assert_template :layout => nil
+    #   assert_template :layout => false
+    #
     #   # assert that the "_customer" partial was rendered twice
     #   assert_template :partial => '_customer', :count => 2
     #
@@ -88,17 +102,18 @@ def assert_template(options = {}, message = nil)
           end
         end
       when Hash
-        if expected_layout = options[:layout]
+        if options.key?(:layout)
+          expected_layout = options[:layout]
           msg = build_message(message,
                   "expecting layout <?> but action rendered <?>",
                   expected_layout, @layouts.keys)
 
           case expected_layout
-          when String
-            assert(@layouts.keys.include?(expected_layout), msg)
+          when String, Symbol
+            assert_includes @layouts.keys, expected_layout.to_s, msg
           when Regexp
             assert(@layouts.keys.any? {|l| l =~ expected_layout }, msg)
-          when nil
+          when nil, false
             assert(@layouts.empty?, msg)
           end
         end
@@ -125,7 +140,7 @@ def assert_template(options = {}, message = nil)
                     options[:partial], @partials.keys)
             assert(@partials.include?(expected_partial), msg)
           end
-        else
+        elsif options.key?(:partial)
           assert @partials.empty?,
             "Expected no partials to be rendered"
         end

actionpack/test/controller/action_pack_assertions_test.rb

@@ -76,6 +76,11 @@ def render_with_layout
     render "test/hello_world", :layout => "layouts/standard"
   end
 
+  def render_with_layout_and_partial
+    @variable_for_layout = nil
+    render "test/hello_world_with_partial", :layout => "layouts/standard"
+  end
+
   def session_stuffing
     session['xmas'] = 'turkey'
     render :text => "ho ho ho"
@@ -483,11 +488,43 @@ def test_fails_with_wrong_layout
     end
   end
 
+  def test_fails_expecting_no_layout
+    get :render_with_layout
+    assert_raise(ActiveSupport::TestCase::Assertion) do
+      assert_template :layout => nil
+    end
+  end
+
   def test_passes_with_correct_layout
     get :render_with_layout
     assert_template :layout => "layouts/standard"
   end
 
+  def test_passes_with_layout_and_partial
+    get :render_with_layout_and_partial
+    assert_template :layout => "layouts/standard"
+  end
+
+  def test_passed_with_no_layout
+    get :hello_world
+    assert_template :layout => nil
+  end
+
+  def test_passed_with_no_layout_false
+    get :hello_world
+    assert_template :layout => false
+  end
+
+  def test_passes_with_correct_layout_without_layouts_prefix
+    get :render_with_layout
+    assert_template :layout => "standard"
+  end
+
+  def test_passes_with_correct_layout_symbol
+    get :render_with_layout
+    assert_template :layout => :standard
+  end
+
   def test_assert_template_reset_between_requests
     get :hello_world
     assert_template 'test/hello_world'

actionpack/test/fixtures/test/hello_world_with_partial.html.erb

@@ -0,0 +1,2 @@
+Hello world!
+<%= render '/test/partial' %>