在 rails 4.2 中的 assert_select 中执行转义插值时出错

Question

I am working on a project which is currently in rails-4.2.10 and I want to do something like this:

assert_select ".note-nid-#{node.id}", false

But while testing it errors pops up:

ArgumentError: wrong number of arguments (given 3, expected 1)

while if I try:

assert_select '.note-nid-#{node.id}', false

no error pops up. So basically how do I do escape interpolation inside assert_select in rails 4.2

Answer 1

I have found an answer to this problem. We can do it by

selector = css_select ".note-nid-#{node.id}"

assert_equal selector.size, 0