On Sat, Oct 30, 2010 at 12:46 PM, David Chelimsky <[email protected]>wrote:
> On Oct 30, 2010, at 11:40 AM, Andrew Wagner wrote:
>
> > Ok, so here's the scenario. I have a top-level module, with a method
> called load_file. It should take a file name, get the YAML module (Syck) to
> parse it, and then send the result to a class, which should convert that
> result into a series of objects.
> >
> > I'm not sure what specs, if any, I should write for load_file. I can get
> into the nitty gritty details of exactly what methods it should be calling,
> but that seems brittle. I can skip all that and just make assertions about
> the final series of objects, but I'd rather put those specs on the class
> that's actually doing the conversion.
> >
> > Suggestions? Here's the code that I (think I) want to drive out:
> >
> > module BTree
> > def self.load_file file_name
> > raw = YAML::load_file file_name
> > tree = BehaviorTreeCreator.new(raw).create
> > end
> > end
>
> One approach would be:
>
> describe BTree do
> describe "::load_file" do
> let(:filename) { '/tmp/btree_example.yml' }
> let(:content) { "---\na: 1\n" }
> before { File.open(filename,'w') {|f| f.write content } }
> after { File.delete filename }
>
> it "reads and parses the content of the file" do
> BTree.load_file(filename).should
> eq(BehaviorTreeCreator.new(content).create
> end
> end
> end
>
> Assuming there are specs for BehaviorTreeCreator.new(content).create, then
> this tells the story pretty well without being terribly invasive.
>
> WDYT?
>
> David
>
>
>
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>
I like this, though it's missing a YAML::load(content). I.e.,
BTree.load_file(filename).should
eq(BehaviorTreeCreator.new(YAML::load content).create
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