review comments incorporated

lib/parfait/word.rb

@@ -13,7 +13,7 @@ module Parfait
   # Object length is measured in non-type cells though
 
   class Word < Data8
-    attr_reader :char_length , :str, :prefix ,:next_word
+    attr_reader :char_length ,:next_word
 
 
     def self.type_length
@@ -194,14 +194,14 @@ module Parfait
     end
     def start_with(other)
       return false if other.length > self.length
-        @str=self.to_string
-        @prefix=other.to_string
-        s = @str.size()
+        str=self.to_string
+        prefix=other.to_string
+        s = str.size()
         temp=""
         i=0
         while i<=s-1
-          temp=temp+@str[i]
-          if temp==@prefix
+          temp=temp+str[i]
+          if temp==prefix
             return true
           end
           i=i+1

test/parfait/test_word2.rb

@@ -85,29 +85,27 @@ module Parfait
       assert one.compare(two)
     end
 
-    def test_start_with
+    def test_start_with1
       one = Parfait.new_word("Hello")
       two = Parfait.new_word("Hel")
       assert one.start_with(two)
+    end
+    def test_start_with2
       one = Parfait.new_word("Vanilla")
       two = Parfait.new_word("Va")
       assert one.start_with(two)
+    end
+    def test_start_with3
       one = Parfait.new_word("hello")
       two = Parfait.new_word("hellooo")
       assert_equal false, one.start_with(two)
+    end
+    def test_start_with4
       one = Parfait.new_word("bajjs")
       two = Parfait.new_word("bgjj")
       assert_equal false, one.start_with(two)
-      #one = Parfait.new_word("hel")
-      #two = Parfait.new_word("hellooo")
-      #assert_equal false, one.start_with(two)
-      #one = Parfait.new_word("Vanilla")
-      #two = Parfait.new_word("vani")
-      #assert one.start_with(two)
-      #assert_equal true , @word.start_with("hello","hell")
-      #assert_equal true , @word.start_with("Adbfgsj","Adbf")
-      #assert_equal false , @word.start_with("Vanila","van")
     end
+
     def test_first_char
       one = Parfait.new_word("one")
       one.set_char(0 , "T".ord)