您如何在Rails测试中测试params哈希? [英] How do you test the params hash in a Rails test?

问题描述

以下内容会产生错误:未定义的局部变量或方法'params'"

The following generates an error: "undefined local variable or method `params'"

assert_equal params[:recipient_id], users(:one).id

您如何测试params哈希?

How do you test the params hash?

此外，当存在参数时，如何测试assert_redirect?参数已附加到URL，因此对model_path或类似内容的测试失败.

Also, how do you test assert_redirect when there are params present? The params are appended to the URL, so testing for model_path or similar fails.

在Rails 3中使用内置的测试类.

Working with built in test class in Rails 3.

推荐答案

http://guides.rubyonrails.org/testing.html#functional-tests-for-your-controllers gives some of this information.

在这种情况下，params附加到@request或@response对象(取决于要测试的HTTP方法)，因此可以将其称为@request.params[:recipient_id].

In this case, params is attached to the @request or @response object (depending on what HTTP method you are testing), so you can refer to it as @request.params[:recipient_id].

对于重定向: assert_redirected_to post_path(assigns(:post))将断言您已重定向到给定模型的正确路径. Assigns方法应具有您在控制器内部设置的实例变量，以传递给视图

For redirect: assert_redirected_to post_path(assigns(:post)) will assert that you are redirected to the proper path for a given model. The assigns method should have the instance variables you are setting inside of the controller to pass to the view

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