为什么这个 Rails 控制器测试失败？

发布于 2024-07-13 18:45:13 字数 1273 浏览 9 评论 0原文

我试图理解为什么这个测试失败了。（我对测试有点陌生。）我使用内置的 Rails 测试框架，并添加了 Shoulda gem。

测试：

require 'shoulda'

context "on GET to :new" do

  setup do
    get(:new)
  end

  should_render_template :new
  should_not_set_the_flash

end

失败：

1) Failure:
test: on GET to :new should render template :new. (SessionsControllerTest)
[/usr/local/lib/ruby/gems/1.8/gems/thoughtbot-shoulda-2.0.6/lib/shoulda/controller   /macros.rb:220:in `__bind_1233882600_699194'
/usr/local/lib/ruby/gems/1.8/gems/thoughtbot-shoulda-2.0.6/lib/shoulda/context.rb:254:in `call'
/usr/local/lib/ruby/gems/1.8/gems/thoughtbot-shoulda-2.0.6/lib/shoulda/context.rb:254:in `test: on GET to :new should render template :new. '
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/testing/setup_and_teardown.rb:94:in `__send__'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/testing/setup_and_teardown.rb:94:in `run']:
expecting <"new"> but rendering with <"">

2 tests, 2 assertions, 1 failures, 0 errors

但是如果我在控制台上使用 app.get '/sessions/new' 运行它，它可以正常工作，没有错误。

并且“new”模板在浏览器中按预期呈现。

我正在使用哈姆尔。也许这引起了问题。我的模板名为“new.html.haml”。

原文

I'm trying to understand why this test is failing. (I'm kind of new to testing.) I'm using the built-in Rails testing framework with the addition of the Shoulda gem.

The test:

require 'shoulda'

context "on GET to :new" do

  setup do
    get(:new)
  end

  should_render_template :new
  should_not_set_the_flash

end

Fails:

1) Failure:
test: on GET to :new should render template :new. (SessionsControllerTest)
[/usr/local/lib/ruby/gems/1.8/gems/thoughtbot-shoulda-2.0.6/lib/shoulda/controller   /macros.rb:220:in `__bind_1233882600_699194'
/usr/local/lib/ruby/gems/1.8/gems/thoughtbot-shoulda-2.0.6/lib/shoulda/context.rb:254:in `call'
/usr/local/lib/ruby/gems/1.8/gems/thoughtbot-shoulda-2.0.6/lib/shoulda/context.rb:254:in `test: on GET to :new should render template :new. '
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/testing/setup_and_teardown.rb:94:in `__send__'
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/active_support/testing/setup_and_teardown.rb:94:in `run']:
expecting <"new"> but rendering with <"">

2 tests, 2 assertions, 1 failures, 0 errors

But if I run it on the console with app.get '/sessions/new' it works fine with no error.

And the "new" template renders as expected in the browser.

I'm using Haml. Maybe that's causing a problem. My template is called "new.html.haml".

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舂唻埖巳落 2024-07-20 18:45:13

失败表明没有渲染任何模板。尝试确保您没有被重定向

should_respond_with :success

并断言 @response.body 的内容只是为了查看发回的内容

# This will fail but should give you some clue about what was sent back.
should "sent something back in the body" do
  assert_match 'boohooo', @response.body
end

您还可以断言特定模板，这样您也可以尝试一下：

should_render_template "new.html.haml"

但是，我不'不要怀疑 HAML 是导致您问题的原因。

The failure says that no template has been rendered. Try to make sure you are not being redirected with

should_respond_with :success

and assert the contents of the @response.body just to see what's been sent back

# This will fail but should give you some clue about what was sent back.
should "sent something back in the body" do
  assert_match 'boohooo', @response.body
end

You can also assert a specific template, so you can give it a shot, too: