spec/unit/test_relation.rb in alf-0.9.3 vs spec/unit/test_relation.rb in alf-0.10.0

@@ -44,9 +44,14 @@
     describe "rel1" do
       subject{ rel1 }
       it_should_behave_like "A value"  
     end
     
+    specify "different empty relations instances should be equal" do
+      Relation.new(Set.new).should eq(Relation.new(Set.new))
+      Relation[{}].should eq(Relation[{}])
+    end
+    
     describe "DUM" do
       subject{ Relation::DUM }
       it_should_behave_like "A value"
       specify{
         subject.cardinality.should == 0
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