spec/rubabel/bond_spec.rb in rubabel-0.2.2 vs spec/rubabel/bond_spec.rb in rubabel-0.3.0

@@ -17,6 +17,63 @@
       end
       subject.atoms.size.should == 2
     end
   end
 
+  describe 'manipulating the bond order' do
+    subject { 
+      mol = Rubabel['CC'] 
+      mol[0].get_bond(mol[1])
+    }
+
+    specify '#inc! increases the bond order' do
+      subject.order.should == 1
+      subject.inc! 
+      subject.order.should == 2
+    end
+
+    specify '#inc!(n) increases the bond order by n' do
+      subject.order.should == 1
+      subject.inc!(2) 
+      subject.order.should == 3
+    end
+
+    specify '#inc!(-n) will not go below 0' do
+      subject.order.should == 1
+      subject.inc!(-1) 
+      subject.order.should == 0
+      subject.inc!(-1) 
+      subject.order.should == 0
+    end
+
+    specify '#+(n) will add but not return same ruby object (underlying ob object same)' do
+      other = subject + 1
+      other.order.should == 2
+      subject.order.should == 2
+      subject.should_not equal(other)
+      #other.object_id.should_not == subject.object_id
+    end
+
+    specify '#+(n) will add but not return same ruby object (underlying ob object same)' do
+      another_var = subject
+      another_var += 1
+      another_var.order.should == 2
+      subject.order.should == 2
+      subject.ob.should equal(another_var.ob)
+    end
+
+    specify '#dec!' do
+      subject.dec!
+      subject.order.should == 0
+    end
+
+    specify '#-(n)' do
+      var = subject
+      var.inc!
+      var.order.should == 2
+      var -= 2
+      var.order.should == 0
+      var -= 1
+      var.order.should == 0
+    end
+  end
 end