Actually use prng passed to GamesDice.create

CHANGELOG.md

@@ -1,5 +1,9 @@
 # GamesDice Changelog
 
+## 0.3.11 ( 26 May 2014 )
+
+ * Bugfix. Actually use custom PRNG passed to GamesDice.create or GamesDice::Bunch.new
+
 ## 0.3.10 ( 29 July 2013 )
 
  * Non-functional changes to improve code quality metrics on CodeClimate

lib/games_dice.rb

@@ -26,6 +26,9 @@ module GamesDice
   #
   def self.create dice_description, prng = nil
     parsed = @@parser.parse( dice_description )
-    GamesDice::Dice.new( parsed[:bunches], parsed[:offset], prng )
+    if prng
+      parsed[:bunches].each { |bunch| bunch.merge!( :prng => prng ) }
+    end
+    GamesDice::Dice.new( parsed[:bunches], parsed[:offset] )
   end
 end

lib/games_dice/bunch.rb

@@ -36,7 +36,7 @@ def initialize( options )
     keep_mode_from_hash( options )
 
     if options[:prng]
-      raise ":prng does not support the rand() method" if ! prng.respond_to?(:rand)
+      raise ":prng does not support the rand() method" if ! options[:prng].respond_to?(:rand)
     end
 
     if options[:rerolls] || options[:maps]

lib/games_dice/version.rb

@@ -1,3 +1,3 @@
 module GamesDice
-  VERSION = "0.3.10"
+  VERSION = "0.3.11"
 end

spec/readme_spec.rb

@@ -18,8 +18,15 @@
 
     it "takes an optional parameter 'prng', which if provided it should be an object that has a method 'rand( integer )'" do
       prng = TestPRNG.new
+
       d = GamesDice.create '3d6', prng
       d.is_a?( GamesDice::Dice ).should be_true
+
+      (0..5).each do |dresult|
+        prng.stub( :rand ) { dresult }
+        expect( prng ).to receive(:rand).with(6)
+        d.roll.should == (dresult + 1) * 3
+      end
     end
   end # describe '#create'