如何将块传递给have_selector？
我有以下视图，无法在视图规范中正确指定：
file: "products/index.html.haml"
#products
= render @products
这是我的视图规范：
require 'spec_helper'
describe "products/index.html.haml" do
let(:products) {[mock_model(Product)]}
before do
stub_template "products/product.html.haml" => ""
render
end
it "should render the products" do
rendered.should have_selector(#products) do
rendered.should render_template products
end
end
这里的问题是 have_selector 不接受块，所以有无法断言部分内容是在 #products div 内呈现的。由于 Capybara 匹配器不能在 View 规范中工作，因此您不能在其中任何一个规范中使用。
I have the following view which I can't spec out properly in a view spec:
file: "products/index.html.haml"
#products
= render @products
And this is my view spec:
require 'spec_helper'
describe "products/index.html.haml" do
let(:products) {[mock_model(Product)]}
before do
stub_template "products/product.html.haml" => ""
render
end
it "should render the products" do
rendered.should have_selector(#products) do
rendered.should render_template products
end
end
The problem here is that have_selector does not accept a block so there is no way to assert that the partial is rendered inside the #products div. Since Capybara matchers don't work within View specs you cannot use within either.
See also this issue: https://github.com/rspec/rspec-rails/issues/387
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正确答案是 webrat 确实会阻塞，而 capybara 则不会。
在这个问题中，水豚的创建者 Jonas Nicklas 解释了为什么没有添加它，并且他不打算添加它：
https://github.com/jnicklas/capybara/issues/384
有一些使用 Object#tap 将块传递给水豚的 #find 的示例也许曾经有效，但似乎不再有效。
更新：David 确认目前无法使用 rspec/capybara 执行此操作：
https://groups.google.com/forum/?fromgroups=#!topic/rspec/HBfznq4Yd0k
The correct answer is with webrat does take a block, and capybara does not.
Here's the issue in which Jonas Nicklas, the creator of capybara explains why it doesn't and that he's not planning on adding it:
https://github.com/jnicklas/capybara/issues/384
There were some examples using Object#tap to pass blocks to capybara's #find that perhaps once worked, but don't seem to be working any longer.
UPDATE: Confirmation from David that there is no way to do this presently with rspec/capybara:
https://groups.google.com/forum/?fromgroups=#!topic/rspec/HBfznq4Yd0k
我所做的是测试部分呈现的类或 id。 have_selector 确实接受块。
What I do is test for a class or id that the partial renders. And have_selector does accept blocks.