Ensuring method names unique.

Ensuring that later class method definitions don't mess with earlier tests.
Renaming test to reflect that other objects are not affected by singleton methods on objects.

Signed-off-by: edgecase <github@theedgecase.com>

koans/about_class_methods.rb

@@ -9,7 +9,7 @@ class AboutClassMethods < EdgeCase::Koan
     assert_equal __, fido.is_a?(Object)
   end
 
-  def test_classes_are_objects_too
+  def test_classes_are_classes
     assert_equal __, Dog.is_a?(Class)
   end
 
@@ -34,7 +34,7 @@ class AboutClassMethods < EdgeCase::Koan
     assert_equal __, fido.wag
   end
 
-  def test_other_objects_are_affected_by_these_singleton_methods
+  def test_other_objects_are_not_affected_by_these_singleton_methods
     fido = Dog.new
     rover = Dog.new
     def fido.wag
@@ -48,24 +48,24 @@ class AboutClassMethods < EdgeCase::Koan
 
   # ------------------------------------------------------------------
   
-  def Dog.wag
-    :class_level_wag
-  end
-
-  class Dog
+  class Dog2
     def wag
       :instance_level_wag
     end
   end
 
+  def Dog2.wag
+    :class_level_wag
+  end
+
   def test_since_classes_are_objects_you_can_define_singleton_methods_on_them_too
-    assert_equal __, Dog.a_class_method
+    assert_equal __, Dog2.wag
   end
 
   def test_class_methods_are_independent_of_instance_methods
-    fido = Dog.new
+    fido = Dog2.new
     assert_equal __, fido.wag
-    assert_equal __, Dog.wag
+    assert_equal __, Dog2.wag
   end
 
   # ------------------------------------------------------------------