From bcb5a6df931dbfd8fe106098721d4b1fdf75d289 Mon Sep 17 00:00:00 2001
From: Donald Ball <donald.ball@gmail.com>
Date: Sun, 23 Nov 2008 22:41:10 -0600
Subject: [PATCH] iterating towards a working helper

---
 init.rb                       |  4 ++++
 lib/zoomifier_helper.rb       |  4 +++-
 spec/zoomifier_helper_spec.rb | 16 +++++++++++-----
 3 files changed, 18 insertions(+), 6 deletions(-)
 create mode 100644 init.rb

diff --git a/init.rb b/init.rb
new file mode 100644
index 0000000..a384c77
--- /dev/null
+++ b/init.rb
@@ -0,0 +1,4 @@
+require 'zoomifier'
+require 'zoomifier_helper'
+
+ActionView::Base.send :include, Zoomifier::ViewHelpers
diff --git a/lib/zoomifier_helper.rb b/lib/zoomifier_helper.rb
index c99f199..e6164a5 100644
--- a/lib/zoomifier_helper.rb
+++ b/lib/zoomifier_helper.rb
@@ -1,6 +1,8 @@
 module Zoomifier
   module ViewHelpers
-    def zoomify_image_tag
+    def zoomify_image_tag(source, options = {})
+      raise ArgumentError unless options[:id]
+      "<div id=\"#{options[:id]}\"><img src=\"#{source}\" alt=\"\"/></div>"
     end
   end
 end
diff --git a/spec/zoomifier_helper_spec.rb b/spec/zoomifier_helper_spec.rb
index aa6fd84..2f3767a 100644
--- a/spec/zoomifier_helper_spec.rb
+++ b/spec/zoomifier_helper_spec.rb
@@ -1,16 +1,22 @@
 require File.dirname(__FILE__) + '/spec_helper'
+require File.dirname(__FILE__) + '/../../../../config/environment'
 require 'zoomifier_helper'
 
-class MockActionView
-  include Zoomifier::ViewHelpers
-end
-
 describe Zoomifier::ViewHelpers do
+  before(:all) do
+    ActionView::Base.send :include, Zoomifier::ViewHelpers
+  end
+
   before(:each) do
-    @view = MockActionView.new
+    @view = ActionView::Base.new
   end
 
   it "should respond to zoomify_image_tag" do
     @view.should respond_to(:zoomify_image_tag)
   end
+
+  it "should generate the zoomify markup" do
+    @view.zoomify_image_tag('foo.jpg', { :id => 'foo' }).should ==
+      '<div id="foo"><img src="foo.jpg" alt=""/></div>'
+  end
 end