Ruby Tutorials

The closing scene of this series. Specing RJS templates. Again a topic which is not on the forefront of the RSpec community.  And again a blog post saved the day. It took me a little bit of time for figure out what kind of RJS type the response object should expect. To illustrate an example RSpec:

response.should have_rjs(:chained_replace_html, "some_id") do
response.should have_text(/some random text/)
end

The response object should have an RJS object but what type? According to the assert_select_rjs method, which the have_rjs method wraps, there are only a hand full of these types but apparently not all of them are listed. As I found out when my inline RJS:

render :update do |page|
page[update_div].update(text)
end

None of the mentioned types responded correctly. But I noticed that the blog post mentioned earlier used an other type. Browsing through the source code of assert_select_rjs I found my missing type: chained_replace_html. Hooray! Everything worked fine and dandy from there on.

One last hiccup was that code in the block passed to the have_rjs method does not scope by default the response.should directive, so this is wrong:

response.should have_rjs(:chained_replace_html, "some_id") do
have_text(/some random text/)
end

Obviously.