Add test for keywords used as variable names

test/keyword_test.rb

@@ -0,0 +1,47 @@
+require 'test_helper'
+
+class KeywordTest < ActiveSupport::TestCase
+  class Collection
+    attr_accessor :id, :name
+
+    def initialize(id, name)
+      @id   = id
+      @name = name
+    end
+
+    def cover(size)
+      "foo_#{size}"
+    end
+  end
+
+  setup do
+    RablRails::Library.reset_instance
+    @context = Context.new
+    @user = User.new(1, 'Marty')
+    @collections = [Collection.new(1, 'first'), Collection.new(2, 'last')]
+    @context.assigns['user'] = @user
+    @context.assigns['collections'] = @collections
+    @context.virtual_path = 'user/show'
+    @context.stub(lookup_context: nil)
+  end
+
+  test "collections model should render correctly" do
+    source = %{
+      object :@user
+      child(:@collections => :collections) do
+        attributes :id, :name
+        node(:cover_url) { |c|
+          c.cover(:medium)
+        }
+      end
+    }
+
+    assert_equal(MultiJson.encode(
+      user: { collections: [{
+        id: 1, name: 'first', cover_url: "foo_medium"
+      }, {
+        id: 2, name: 'last', cover_url: "foo_medium"
+      }] }
+    ), RablRails::Library.instance.get_rendered_template(source, @context))
+  end
+end