spec/unit/scope/test_chain.rb in wlang-2.0.1 vs spec/unit/scope/test_chain.rb in wlang-2.1.0

@@ -1,29 +1,29 @@
 module WLang
   describe Scope, '.chain' do
 
-    it 'returns Scope.root on empty chain' do
-      Scope.chain([]).should eq(Scope.root)
+    it 'returns the NullScope on empty chain' do
+      Scope.chain([]).should eq(Scope.null)
     end
 
     it 'returns a single scope on singleton' do
       s = Scope.chain([{:who => "World"}])
       s.should be_a(Scope::ObjectScope)
-      s.parent.should eq(Scope.root)
+      s.parent.should be_nil
     end
 
     it 'uses the last scope as most specific' do
       s = Scope.chain([{:who => "World"}, lambda{}])
       s.should be_a(Scope::ProcScope)
       s.parent.should be_a(Scope::ObjectScope)
-      s.parent.parent.should eq(Scope.root)
+      s.parent.parent.should be_nil
     end
 
     it 'strips nils' do
       s = Scope.chain([nil, {:who => "World"}, nil, lambda{}, nil])
       s.should be_a(Scope::ProcScope)
       s.parent.should be_a(Scope::ObjectScope)
-      s.parent.parent.should eq(Scope.root)
+      s.parent.parent.should be_nil
     end
 
   end
 end
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