documentation and fixes to :through test

git-svn-id: https://svn.thoughtbot.com/plugins/shoulda/trunk@163 7bbfaf0e-4d1d-0410-9690-a8bb5f8ef2aa

README

@@ -1,4 +1,4 @@
-= Shoulda
+= Shoulda - Making tests easy on the fingers and eyes
 
 Shoulda makes it easy to write elegant, understandable, and maintainable tests.  Shoulda consists of test macros, assertions, and helpers added on to the Test::Unit framework.  It's fully compatible with your existing tests, and requires no retooling to use.
 

Rakefile

@@ -14,7 +14,7 @@ end
 
 Rake::RDocTask.new { |rdoc|
   rdoc.rdoc_dir = 'doc'
-  rdoc.title    = "Shoulda -- Making your tests easy on the fingers and eyes"
+  rdoc.title    = "Shoulda -- Making tests easy on the fingers and eyes"
   rdoc.options << '--line-numbers' << '--inline-source'
   rdoc.template = "#{ENV['template']}.rb" if ENV['template']
   rdoc.rdoc_files.include('README', 'lib/**/*.rb')

lib/shoulda/active_record_helpers.rb

@@ -276,7 +276,11 @@ module ThoughtBot # :nodoc:
             reflection = klass.reflect_on_association(association)
             assert reflection
             assert_equal :has_many, reflection.macro
-            assert_equal(through, reflection.options[:through]) if through
+            if through
+              through_reflection = klass.reflect_on_association(through)
+              assert through_reflection
+              assert_equal(through, reflection.options[:through])
+            end
           end
         end
       end