Added JavascriptVariable to wrap a javascript variable in ruby

lib/eschaton/javascript/javascript_variable.rb

@@ -0,0 +1,31 @@
+module Eschaton
+
+  # Encapsulates a javascript variable in a Ruby variable. This can be used to work with a javascript variable within Ruby.
+  #
+  # ==== Examples
+  #  # Create a new variable
+  #  my_array = JavascriptVariable.new(:name => :my_array, :value => "new Array()")
+  #  my_array.push("One")
+  #  my_array.push(2)
+  #  my_array.push("Three")
+  #
+  #  my_array.splice(1, 0, "A new item at position 1")
+  #
+  #  # Reference an existing variable
+  #  my_existing_array = JavascriptVariable.existing(:var => :my_array)
+  #  my_existing_array.push("Four")
+  #  my_existing_array.push(5)
+  class JavascriptVariable < JavascriptObject
+
+    def initialize(options = {})
+      options.default! :value => nil, :var => options[:name]
+
+      super
+
+      if self.create_var?
+        self << "var #{self.var} = #{options[:value]};"
+      end
+    end
+  end
+
+end

test/javascript_variable_test.rb

@@ -0,0 +1,50 @@
+require File.dirname(__FILE__) + '/test_helper'
+
+Test::Unit::TestCase.output_fixture_base = File.dirname(__FILE__)
+
+class JavascriptVariableTest < Test::Unit::TestCase
+
+  def test_new_variable
+    Eschaton.with_global_script do |script|
+      assert_output_fixture 'var points = new Array();
+                             points.push("One");
+                             points.push("Two");',
+                            script.record_for_test {
+                              points = Eschaton::JavascriptVariable.new(:name => :points, :value => "new Array()")
+                              points.push("One")
+                              points.push("Two")                              
+                            }      
+    end
+  end
+
+  def test_existing_variable
+    Eschaton.with_global_script do |script|
+      assert_output_fixture 'points.push("One");
+                             points.push("Two");',
+                            script.record_for_test {
+                              points = Eschaton::JavascriptVariable.existing(:name => :points)
+                              points.push("One")
+                              points.push("Two")                              
+                            }      
+    end
+  end
+
+  def test_method_translation
+    Eschaton.with_global_script do |script|
+      assert_output_fixture 'var points = new Array();
+                             points.push("One");
+                             points.push("Two");
+                             points.translateToCamelCase();
+                             points.withTwoArguments("One", 2);',
+                            script.record_for_test {
+                              points = Eschaton::JavascriptVariable.new(:name => :points, :value => "new Array()")
+
+                              points.push("One")
+                              points.push("Two")
+                              points.translate_to_camel_case!
+                              points.with_two_arguments("One", 2)
+                            }
+    end
+  end
+
+end