Using assert_select on strings
Question:
assert_select is awesome for testing dom objects – but it relies on using the standard rails response cycle. How can I use assert_select on to find dom elements in a standard string?
Answer:
Stub the response object!
def test_big_selector_helper
# the response requires a content_type - just set it to "text"
@response.stubs(:content_type).returns "text"
# big_element_selector is the helper method I'm testing in this instance
# replace with the string that you want to test
@response.stubs(:body).returns big_element_selector
# now you can use assert_select
assert_select "ul" do
assert_select "li", :count => 3
end