Add tests on accessing grid attributes from dynamic scope

spec/datagrid/core_spec.rb

@@ -140,10 +140,10 @@ class EqualTest
       grid = test_report do
         scope {Entry}
         column(:id)
-        dynamic {
+        dynamic do
           column(:name)
           column(:category)
-        }
+        end
       end
 
       expect(grid.columns.map(&:name)).to eq([:id, :name, :category])
@@ -157,10 +157,10 @@ class EqualTest
       grid = test_report(:attribute_name => 'value') do
         scope {Entry}
         datagrid_attribute :attribute_name
-        dynamic {
+        dynamic do
           value = attribute_name
           column(:name) { value }
-        }
+        end
       end
 
       expect(grid.data_value(:name, Entry.create!)).to eq('value')
@@ -182,6 +182,22 @@ class EqualTest
 
       expect(grid.assets.limit_value).to eq(2)
     end
+
+    it "has access to grid attributes within scope" do
+      grid = test_report(name: 'one') do
+        scope {Entry}
+        dynamic do
+          scope do |s|
+            s.where(name: name)
+          end
+        end
+        filter(:name, dummy: true)
+      end
+      one = Entry.create!(name: 'one')
+      two = Entry.create!(name: 'two')
+      expect(grid.assets).to include(one)
+      expect(grid.assets).to_not include(two)
+    end
   end
 
   describe "ActionController::Parameters" do