Don't depend on implicit definition in #assert.

Fingertips · Jul 28, 2016 · c214162 · c214162
1 parent b77b97a
commit c214162
Showing 1 changed file with 10 additions and 3 deletions.
diff --git a/examples/assert.rb b/examples/assert.rb
@@ -5,16 +5,23 @@ module Kernel
 
   def assert(success, message=nil)
     unless success
-      @_failures ||= 0
-      @_failures += 1
+      if defined?(@_failures)
+        @_failures += 1
+      else
+        @_failures = 1
+      end
       where = caller[0].split(":")[0,2].join(':')
       message ||= "Assertion failed"
       puts "\n  #{@_failures}) #{where}\n\t#{message}"
     end
   end
 
   def failures
-    @_failures || 0
+    if defined?(@_failures)
+      @_failures
+    else
+      0
+    end
   end
 end