Question

I am writing an app where it is desirable to check if a view does not have some functionality – in particular because that functionality must be presented only to users in certain security group. I am looking for the opposite of assert_selects in order to see that a menu is not rendered.

Answer 1

Take a look at the docs here:

http://apidock.com/rails/ActionController/Assertions/SelectorAssertions/assert_select

From the docs:

assert_select is an assertion that selects elements and makes one or more equality tests.

and from the equality tests sections:

The equality test may be one of the following:

true – Assertion is true if at least one element selected.

false – Assertion is true if no element selected.

String/Regexp – Assertion is true if the text value of at least one
element matches the string or regular expression.

Integer – Assertion is true if exactly that number of elements are
selected.

Range – Assertion is true if the number of selected elements fit the
range.

If no equality test specified, the assertion is true if at least one
element selected.

And a simple example:

   # Page contains no forms
   assert_select "form", false, "This page must contain no forms"