27 Nov
2012
27 Nov
'12
7:09 a.m.
On Tue, Nov 27, 2012 at 1:59 PM, Henning Thielemann < lemming@henning-thielemann.de> wrote:
On Tue, 27 Nov 2012, Michael Snoyman wrote:
+1 on the proposal. Even if I'm opposed to partial functions, I'm in
favor of making it easier to test them reliably.
How can you be sure that you get a certain error? Depending on the order of evaluation you might get different error messages if there are multiple possible ways to fail. I think automated testing against specific error messages will not work reliably.
Sure, in some cases that's true. The idea would be to structure the test case in such a way that we no with certainty which way it will fail. Simon's initial example will always fail in the same way. Michael