update Diff::LCS::Change and Diff::LCS::ContextChange's '==' methods to compare against the other object's class

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/diff/lcs/change.rb b/lib/diff/lcs/change.rb
index 4077095..3104a51 100644
--- a/lib/diff/lcs/change.rb
+++ b/lib/diff/lcs/change.rb
@@ -54,6 +54,7 @@ class Diff::LCS::Change
   include Comparable
 
   def ==(other)
+    (self.class == other.class) and
     (self.action == other.action) and
     (self.position == other.position) and
     (self.element == other.element)
@@ -159,6 +160,7 @@ class Diff::LCS::ContextChange < Diff::LCS::Change
   end
 
   def ==(other)
+    (self.class == other.class) and
     (@action == other.action) and
     (@old_position == other.old_position) and
     (@new_position == other.new_position) and