How to check if text appears on page in rails functional test?

Question

I am currently writing functional tests for my controller, and I want to check if a line

This is a test line

appears on my page.

I tried using

assert_select "p" do
  assert_select "this is the test line"
end

but i think something is wrong with this line.

What is the best way to do this in rails version 3?

Answer 1

Without specifying a tag:

assert_match "this is the test line", response.body