Hi list,
I'm writing an example for a class that represents the "pickaxe" e-book, which
I view in Preview.app:
describe PickaxeBook do
...
it "should tell whether it's ready to read" do
preview = stub('preview')
preview.stub!(:******this is what I'm not sure about - see
below*******).returns("programming_ruby_1.9.pdf")
my_pickaxe_book = PickaxeBook.new(preview)
my_pickaxe_book.should be_ready_to_read
end
end
class PickaxeBook
...
def ready_to_read?
#****** this is the dependency I want to stub:
preview.front_window.title ********
preview.front_window.title =~ /programming_ruby_1.9\.pdf.*/
end
end
Can you see the problem? ready_to_read wants to query the object returned by
front_window, but how do I stub that? I should note that the Preview class is
in a different library, which is why I don't just change front_window.title
I thought of a few things, like introducing a role (something like
"PreviewInfoRetriever") with a method "front_window_title" that forwards to
preview.front_window.title, but that seems like a lot of complexity.
To summarize: what's the best way to handle a dependency like
object.method.method?
Thanks!
Sean DeNigris
[email protected]
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