On Tue, Oct 7, 2008 at 8:57 AM, Ashley Moran
<[EMAIL PROTECTED]> wrote:
> Hi
>
> I've got code I want to intercept all errors (to report them) but re-raise
> them immediately. Currently the raise_error matcher doesn't support
> matching against instances of exception classes, so I've done this to prove
> that the actual exception was re-raised:
>
> describe "when the update is unsuccessful" do
> class WeirdError < StandardError; end
>
> before(:each) do
> @error = WeirdError.new("Error")
> @server.stub!(:check_feeds).and_raise(@error)
> end
>
> it "should re-raise the exception" do
> lambda { @connection.receive_data("UPDATE\n") }.
> should raise_error(WeirdError)
> end
> end
>
> Few questions:
>
> Is this an appropriate behaviour to spec?
Hmmm, should inappropriate behaviour be spec'd? :)
Code examples are not politically correct. If you want your app to
behave some way, there should be a way to spec it.
> If so, is this currently the best way to do it?
>
> If so, would exception instance matching be useful?
Check out http://rspec.info/rdoc/classes/Spec/Matchers.html#M000434
I see that it is incomplete, because you can use just a string or
regexp if you want (w/o the error itself). I'll adjust for the next
release.
Regardless, if you really care about the specific instance you can do this:
lambda {
@connection.receive_data("UPDATE\n")
}.should raise_error {|error| error.should equal(@error)}
If what you care about is the message, you can expect specific
messages using strings or regexps:
lambda {
@connection.receive_data("UPDATE\n")
}.should raise_error("with this message")
lambda {
@connection.receive_data("UPDATE\n")
}.should raise_error(/with a message containing this/)
lambda {
@connection.receive_data("UPDATE\n")
}.should raise_error(OfThisErrorType, "with this message")
lambda {
@connection.receive_data("UPDATE\n")
}.should raise_error(OfThisErrorType, with a message containing this/)
Cheers,
David
>
> Thanks
> Ashley
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