blocks|key|2965859|text|request.env['HTTP_REFERER']+=+'/your_referring_url'|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2965860|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>request.env['HTTP_REFERER'] = '/your_referring_url'
</code></pre>

blocks|key|2965883|text|使用RSpec，您可以在before块中设置referer。当我尝试在测试中直接设置referer时，无论我把它放在哪里，它似乎都不起作用，但之前的代码块起到了作用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2965884|describe+BackController+<+ApplicationController+do
++before(:each)+do
++++request.env["HTTP_REFERER"]+=+"where_i_came_from"
++end

++describe+"GET+/goback"+do
++++it+"redirects+back+to+the+referring+page"+do
++++++get+'goback'
++++++response.should+redirect_to+"where_i_came_from"
++++end
++end
end|code-block|syntax|javascript|2965885|entityMap^0|C|6|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Using RSpec, you can set the referer in a <code>before</code> block. When I tried to set the referer directly in the test, it didn't seem to work no matter where I put it, but the before block does the trick.

<pre><code>describe BackController &lt; ApplicationController do
 before(:each) do
 request.env["HTTP_REFERER"] = "where_i_came_from"
 end

 describe "GET /goback" do
 it "redirects back to the referring page" do
 get 'goback'
 response.should redirect_to "where_i_came_from"
 end
 end
end
</code></pre>

blocks|key|271829|text|关于测试:集成测试中的反向链接，我首先访问一个死端页面，我认为它不太可能用作链接，然后访问我正在测试的页面。所以我的代码看起来像这样|type|unstyled|depth|inlineStyleRanges|entityRanges|data|271830|+++before(:each)+do
+++++++visit+deadend_path
+++++++visit+testpage_path
++++end
++++it+"testpage+Page+should+have+a+Back+button+going+:back"+do
++++++response.should+have_selector("a",:href+=>+deadend_path,
++++++++++++++++++++++++++++++++++++++++:content+=>+"Back")
++++end|code-block|syntax|javascript|271831|然而，这确实有一个缺陷，即如果链接真的指向deadend_path，那么测试将不正确地通过。|271832|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

In regard to testing :back links in integration tests, I first visit a deadend page, that I think is not likely to be ever used as a link, and then the page I am testing. So my code looks like this

<pre><code> before(:each) do
 visit deadend_path
 visit testpage_path
 end
 it "testpage Page should have a Back button going :back" do
 response.should have_selector("a",:href =&gt; deadend_path,
 :content =&gt; "Back")
 end
</code></pre>

However this does have the flaw that if the link is really to the deadend_path, then the test will incorrectly pass.

blocks|key|266296|text|我觉得公认的答案有点老生常谈。一个更好的选择是将HTTP_REFERER设置为应用程序中的实际url，然后期望被重定向回来：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|266297|describe+BackController,+type:+:controller+do
++before(:each)+do
++++request.env['HTTP_REFERER']+=+root_url
++end

++it+'redirects+back'+do
++++get+:whatever
++++response.should+redirect_to+:back
++end
end|code-block|syntax|javascript|266298|266299|重定向到随机字符串常数感觉就像是意外地工作|unordered-list-item|266300|您利用rspec的内置功能准确地表达了您想要的内容|266301|您不会引入和重复神奇的字符串值|266302|266303|266304|对于较新版本的rspec，您可以改用expectations：|266305|expect(response).to+redirect_to+:back|266306|entityMap^0|O|C|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|14|8|@]|D|@]|E|$]]|$1|L|3|M|5|N|7|15|8|@]|D|@]|E|$]]|$1|O|3|P|5|N|7|16|8|@]|D|@]|E|$]]|$1|Q|3|R|5|N|7|17|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|18|8|@]|D|@]|E|$]]|$1|T|3|-4|5|6|7|19|8|@]|D|@]|E|$]]|$1|U|3|V|5|6|7|1A|8|@]|D|@]|E|$]]|$1|W|3|X|5|H|7|1B|8|@]|D|@]|E|$I|J]]|$1|Y|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|Z|$]]

IMHO the accepted answer is a bit hacky. A better alternative would be to set the <code>HTTP_REFERER</code> to an actual url in your application and then expect to be redirected back:

<pre><code>describe BackController, type: :controller do
 before(:each) do
 request.env['HTTP_REFERER'] = root_url
 end

 it 'redirects back' do
 get :whatever
 response.should redirect_to :back
 end
end
</code></pre>

<ul>
<li>Redirecting to a random string constant feels as if it works by accident</li>
<li>You take advantage of rspec's built in functionality to express exactly what you wanted</li>
<li>You don't introduce and repeat magic string values</li>
</ul>

<hr>

For newer versions of rspec, you can use expectations instead:

<pre><code>expect(response).to redirect_to :back
</code></pre>

blocks|key|3179831|text|当使用新的请求样式请求请求时，从rails+guide+：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3179832|describe+BackController+<+ApplicationController+do
++describe+"GET+/goback"+do
++++it+"redirects+back+to+the+referring+page"+do
++++++get+:show,+
++++++++params:+{+id:+12+},
++++++++headers:+{+"HTTP_REFERER"+=>+"http://example.com/home"+}
++++++expect(response).to+redirect_to("http://example.com/home")
++++end
++end
end|code-block|syntax|javascript|3179833|entityMap|0|LINK|mutability|MUTABLE|url|http://guides.rubyonrails.org/testing.html#functional-tests-for-your-controllers#what-to-include-in-your-functional-tests^0|G|C|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

From the <a href="http://guides.rubyonrails.org/testing.html#functional-tests-for-your-controllers#what-to-include-in-your-functional-tests" rel="nofollow">rails guide </a> when requesting the request with the new request style:

<pre><code>describe BackController &lt; ApplicationController do
 describe "GET /goback" do
 it "redirects back to the referring page" do
 get :show, 
 params: { id: 12 },
 headers: { "HTTP_REFERER" =&gt; "http://example.com/home" }
 expect(response).to redirect_to("http://example.com/home")
 end
 end
end
</code></pre>

blocks|key|2965992|text|如果有人偶然发现了这一点，并且他们正在使用request规范，那么您将需要显式地设置您正在发出的请求的头部。测试请求的格式取决于您使用的RSpec版本，以及您是否可以使用关键字参数而不是位置参数。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2965993|let(:headers){+{+"HTTP_REFERER"+=>+"/widgets"+}+}

it+"redirects+back+to+widgets"+do+
++post+"/widgets",+params:+{},+headers:+headers+#+keyword+(better)
++post+"/widgets",+{},+headers++++++++++++++++++#+positional

++expect(response).to+redirect_to(widgets_path)
end|code-block|syntax|javascript|2965994|https://relishapp.com/rspec/rspec-rails/docs/request-specs/request-spec|2965995|entityMap|0|LINK|mutability|MUTABLE|url^0|L|7|0|0|0|1Z|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|W|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|X|8|@]|D|@$9|Y|A|Z|1|10]]|E|$]]|$1|M|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|L]]]]

If someone stumbles upon this and they're using <code>request</code> specs, you'll need to explicitly set the headers on the request you're making. The format of the test request depends on which version of RSpec you're using and if you can use keyword arguments instead of positional arguments.

<pre><code>let(:headers){ { "HTTP_REFERER" =&gt; "/widgets" } }

it "redirects back to widgets" do 
 post "/widgets", params: {}, headers: headers # keyword (better)
 post "/widgets", {}, headers # positional

 expect(response).to redirect_to(widgets_path)
end
</code></pre>

<a href="https://relishapp.com/rspec/rspec-rails/docs/request-specs/request-spec" rel="nofollow noreferrer">https://relishapp.com/rspec/rspec-rails/docs/request-specs/request-spec</a>

How do you test <code>redirect_to :back</code> in rspec?

I get 

<blockquote>
 <code>ActionController::RedirectBackError</code>: 
 No <code>HTTP_REFERER</code> was set in the request to this action, so <code>redirect_to :back</code> could not be called successfully. If this is a test, make sure to specify <code>request.env["HTTP_REFERER"]</code>.
</blockquote>

How do I go about setting the <code>HTTP_REFERER</code> in my test?

Rspec testing redirect_to :back

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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如何在rspec中测试redirect_to :back？我得到了 ActionController::RedirectBackError：在对此操作的请求中未设置HTTP_REFERER，因此无法成功调用redirect_to :back。如果这是测试，请确保指定request.env["HTTP_REFERER"]...

问Rspec测试redirect_to :返回
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问Rspec测试redirect_to :返回EN