X-Git-Url: https://git.njae.me.uk/?a=blobdiff_plain;f=spec%2Ferd_handler%2Ferd_spec.rb;h=77d7ad2b42dbf19531a3684ea4a41cb23fbbcb31;hb=f55cef415b384cf2004cf984cb0aaf6bd87ee922;hp=d6d5561e4cb34274d26b0e0fa4fda870ed2b3751;hpb=042a27abb3ac3bf9faf36406204fe1d1901123d3;p=erd-marker.git

diff --git a/spec/erd_handler/erd_spec.rb b/spec/erd_handler/erd_spec.rb
index d6d5561..77d7ad2 100644
--- a/spec/erd_handler/erd_spec.rb
+++ b/spec/erd_handler/erd_spec.rb
@@ -71,6 +71,20 @@ module ErdHandler
         c1.should_not == c2
       end
 
+      it "reads and creates an ERD with subclassing" do
+        erd = Erd.new
+        erd.read(File.new("spec/fixtures/two_boxes_one_contained_erd.xml"))
+        erd.mark.should == 4.5
+        erd.should have(2).vertices
+        erd.should have(0).edges
+
+        erd.vertices[0].should have(0).neighbours
+        erd.vertices[1].should have(0).neighbours
+        
+        erd.vertices[0].within?(erd.vertices[1]).should be(true)
+        erd.vertices[1].should be_contains(erd.vertices[0])
+      end
+      
       it "reads and creates full diagram" do
         erd = Erd.new
         erd.read(File.new("spec/fixtures/complex_erd.xml"))
@@ -141,5 +155,62 @@ module ErdHandler
         l5.connections.find {|c| c.crowsfoot == :no}.end.should be b2
       end
     end # #read
+    
+    describe "#mmus" do
+      it "finds three MMUs in a simple ERD" do
+        erd = Erd.new
+        erd.read(File.new("spec/fixtures/two_boxes_one_link_erd.xml"))
+        mmus = erd.mmus
+        
+        mmus.should have(3).items
+        single_box_mmus = mmus.select {|m| m.vertices.length == 1}
+        single_link_mmus = mmus.select {|m| m.edges.length == 1}
+        
+        single_box_mmus.should have(2).items
+        single_box_mmus.each do |m|
+          m.should have(1).vertices
+          m.should have(0).edges
+        end
+        
+        single_link_mmus.should have(1).items
+        single_link_mmus.each do |m|
+          m.should have(2).vertices
+          m.should have(1).edges
+          m.edges.first.should have(2).connections
+          m.vertices.each do |v|
+            m.vertices.should include(v)
+          end
+        end
+      end
+      
+      it "finds many MMUs in a complex ERD" do
+        erd = Erd.new
+        erd.read(File.new("spec/fixtures/complex_erd.xml"))
+        mmus = erd.mmus
+        
+        mmus.should have(11).items
+        single_box_mmus = mmus.select {|m| m.vertices.length == 1}
+        single_link_mmus = mmus.select {|m| m.edges.length == 1}
+
+        single_box_mmus.should have(5).items
+        single_box_mmus.each do |m|
+          m.should have(1).vertices
+          m.should have(0).edges
+        end
+        single_box_mmus.map {|m| m.vertices.first.name.original}.uniq.should have(5).items
+        
+        single_link_mmus.should have(6).items
+        single_link_mmus.each do |m|
+          m.should have(2).vertices
+          m.should have(1).edges
+          m.edges.first.should have(2).connections
+          m.vertices.each do |v|
+            m.vertices.should include(v)
+          end
+        end
+        single_link_mmus.map {|m| m.edges.first.name.original}.uniq.should have(6).items
+      end
+
+    end # #mmus
   end
 end