e = Edge.new
e.connections.should be_empty
end
+
+ it "creates an edge with some parameters" do
+ e = Edge.new :value1 => 1, :value2 => "value2", :value3 => :v3
+ e.value1.should == 1
+ e.value2.should == "value2"
+ e.value3.should == :v3
+ e.value4.should be_nil
+ end
+
end # #initialize
describe "adds attribues" do
e.should have(1).connections
e.should have(1).vertices
e.vertices.should include(v1)
+ v1.edges.should include(e)
e << v2
e.should have(2).connections
e.should have(2).vertices
e.vertices.should include(v1)
e.vertices.should include(v2)
+ v2.edges.should include(e)
end
it "adds several vertices to an edge" do