lib/daigaku/unit.rb in daigaku-0.6.0 vs lib/daigaku/unit.rb in daigaku-1.0.0

@@ -14,10 +14,10 @@
     def reference_solution
       @reference_solution ||= ReferenceSolution.new(@path)
     end
 
     def solution
-      @solution = Solution.new(@path)
+      @solution ||= Solution.new(@path)
     end
 
     def mastered?
       solution.verified?
     end