[rspec-users] [Cucumber, Webrat, Rails] Unable to run 2 features in a row
matt at mattwynne.net
Sat Jan 17 19:46:08 EST 2009
On 18 Jan 2009, at 00:07, Fernando Perez wrote:
> Fernando Perez wrote:
>> I have written 2 features that each have 1 scenario. When I execute
>> feature separately with "rake features FEATURE=features/..." they
>> pass, but when I do "rake features", the first feature passes, and
>> second one fails.
>> In my Given steps, I populate the DB, and some Given steps are
>> called by
>> both features. I can't call Given in only one feature and not the
>> because in such case, individually running each feature would fail.
>> So I
>> have added a check, if the entry already exists, then I shall not
>> a duplicate. But it still doesn't work.
>> How to get around this headache? Anyone already bumped into that?
> Okay I get it now. That was a nasty one:
> Between each Scenario, the DB gets cleared, however when adding
> to the DB, the object's id gets incremented (i.e: it won't reset to
> So you cannot do something like the following in your step files:
> product.author_id = 1
Yes, hard-coding database identifiers anywhere is going to bite you
somewhere painful every single time.
> The way to fix this problem is to instantiate the object as an
> @author = Author.create!
> And then in the step definition you get its id using:
> product.author_id = @author.id
> It took me a few hours to figure out, and a lot of trial and error.
> As I don't see any other way around, I guess it is a good idea to
> the following documentation page accordingly to explain in which
> case an
> instance var is compulsory:
Not necessarily compulsory. You can also do this:
Given "The Book was written by the Author" do
Product.count.should == 1
the_product = Product.first
Author.count.should == 1
the_author = Author.first
product.author_id = author.id
We have a convention on my team that as long as your step refers to to
*the* Widget, then
* there should only be one Widget in the database at that moment
* you can therefore assume that the feature is referring to that
one and only Widget
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