specs for rendering

spec/spec_helper.rb

@@ -5,8 +5,18 @@ SimpleCov.start do
 end
 
 require 'rack'
+require 'erb'
+require 'tilt'
 require 'zero/all'
 
+class SpecTemplateContext
+  attr_accessor :name
+
+  def initialize(name)
+    @name = name
+  end
+end
+
 class SpecController < Zero::Controller
   def process; end
   def render; @response = [200, {'Content-Type' => 'text/html'}, ['foo']]; end

spec/unit/renderer/render_spec.rb

@@ -0,0 +1,34 @@
+require 'spec_helper'
+
+describe Zero::Renderer, '#render' do
+  subject { Zero::Renderer.new(template_path) }
+  let(:template_path) { 'foo' }
+  let(:file_list) { ['./foo/welcome/index.html.erb'] }
+
+  shared_examples_for 'the rendering' do
+    before :each do
+      subject.stub(:search_files).and_return(file_list)
+      subject.stub(:template).and_return(Tilt[:erb].new {template} )
+    end
+
+    it "renders the template" do
+      subject.render('welcome/index', 'text/html', binding).should eq(result)
+    end
+  end
+
+  context 'a simple template' do
+    let(:template) { 'success' }
+    let(:binding) { Object.new }
+    let(:result) { template }
+
+    it_behaves_like 'the rendering'
+  end
+
+  context 'a complex template' do
+    let(:template) { 'success <%= name %>' }
+    let(:binding) { SpecTemplateContext.new('bar') }
+    let(:result) { 'success bar' }
+
+    it_behaves_like 'the rendering'
+  end
+end