testing doc.

Guardfile

@@ -6,6 +6,7 @@
 # end
 #
 guard 'spork', :test_unit => true, :test_unit_env => {'RAILS_ENV' => 'test'}, :wait => 60 do
+  watch(%r{app/models/.+\.rb})
   watch('config/application.rb')
   watch('config/environment.rb')
   watch('config/environments/test.rb')

test/unit/course_test.rb

@@ -15,7 +15,6 @@ class CourseTest < ActiveSupport::TestCase
     error_keys = course.errors.keys
 
     valid_attr = [:password, :term, :name, :class_period]
-    puts error_keys
     valid_attr.each do |attr|
       assert(error_keys.include?(attr), "attr unknow: #{attr}")
     end
@@ -43,7 +42,7 @@ class CourseTest < ActiveSupport::TestCase
     course.name = "test_course"
     assert course.valid?
     course.name = name_quirk
-    assert course.valid?
+    assert course.valid?, "Quirk name ===> #{course.name}"
   end
 
   test 'description too long must be valid.(4096)' do