我在使用 RSpec 视图测试时遇到问题。我正在使用嵌套资源和具有 belongs_to 关联的模型。
这是我到目前为止所拥有的:
describe "/images/edit.html.erb" do
include ImagesHelper
before(:each) do
@image_pool = stub_model(ImagePool, :new_record => false,
:base_path => '/')
assigns[:image] = @image =
stub_model(Image,
:new_record? => false,
:source_name => "value for source_name",
:image_pool => @image_pool)
end
it "renders the edit image form" do
render
response.should have_tag("form[action=#{image_path(@image)}][method=post]") do
with_tag('input#image_source_name[name=?]', "image[source_name]")
end
end
end
我收到的错误:
ActionView::TemplateError in '/images/edit.html.erb renders the edit image form'
can't convert Image into String
On line #3 of app/views/images/edit.html.erb
1: <h1>Editing image</h1>
2:
3: <% form_for(@image) do |f| %>
4: <%= f.error_messages %>
5:
6: <p>
app/views/images/edit.html.erb:3
/opt/dtcm/railstest/lib/ruby/gems/1.9.1/gems/rspec-rails-1.3.2/lib/spec/rails/extensions/action_view/base.rb:27:in `render_with_mock_proxy'
/opt/dtcm/railstest/lib/ruby/gems/1.9.1/gems/rspec-rails-1.3.2/lib/spec/rails/example/view_example_group.rb:170:in `render'
查看发生异常的 rails 代码并不是很有启发性。关于如何缩小这里发生的事情的任何想法?
我尝试过的一件事是直接从示例中调用 form_for,但我得到了一个不同的错误,抱怨缺少在 Spec::Rails::Example::ViewExampleGroup::Subclass_4:0xblah 上定义的“多态路径”。不确定这是否真的意味着什么。