看了这么多案例，貌似比较推荐是 Rspec+factory-girl

我尝试了一下照着 ruby-china 的代码弄了下

# coding: utf-8
require 'spec_helper'

describe Location do
    before(:each) do
        @location = Factory(:location,:name => 'foo')
    end

    it "should validates_uniqueness_of :name ignore case" do
        Location.create(:name => "FoO").should have(1).error_on(:name)
    end
end

但是他说找不到 Factory，那我应该在那配置这个 factory-girl 呢 错误信息

Failures:

  1) Location should validates_uniqueness_of :name ignore case
     Failure/Error: @location = Factory(:location,:name => 'foo')
     NoMethodError:
       undefined method `Factory' for #<RSpec::Core::ExampleGroup::Nested_1:0x007ffdfeb93ad0>
     # ./spec/models/location_spec.rb:6:in `block (2 levels) in <top (required)>'