modify

lib/ruby_extendsions/array_extendsions.rb

@@ -7,7 +7,11 @@ def self.included(base)
 
     module InstanceMethods
       def fill_nil(val)
-        self.inject([]){|s,a| s << a.to_s}
+        self.inject([]) {|s, a| s << (a.nil? ? a=val : a)}
+      end
+
+      def fill_nil!(val)
+        self.each_index { |i| self[i] ||= val }
       end
     end#InstanceMethods
 

ruby_extendsions.gemspec

@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |s|
   s.name        = "ruby_extendsions"
-  s.version     = "0.1.2"
+  s.version     = "0.1.3"
   s.platform    = Gem::Platform::RUBY
   s.authors     = ["blackanger"]
   s.email       = ["blackanger.z@gmail.com"]

spec/array_spec.rb

@@ -0,0 +1,18 @@
+require File.expand_path(File.dirname(__FILE__) + '/spec_helper')
+
+describe "RubyExtend::ArrayExtendsions" do
+  before(:each) do
+    @arr1 = [1, 2, 3, nil, nil, nil]
+  end
+
+  it "A array data should have not fill_nil method if havn't use ruby_extend " do
+    @arr1.respond_to?("fill_nil").should eql false
+  end
+
+  it "A array include nil object data should be fill value" do
+    require 'ruby_extendsions'
+    @arr1.fill_nil!('')
+    @arr1.should eql([1,2,3,'','',''])
+  end
+
+end

spec/hash_spec.rb

@@ -13,4 +13,5 @@
     require 'ruby_extendsions'
     @hash1.hash_reverse.should eql({1=>:a, 2=>:b} )
   end
+
 end