On 2022-04-16 20:25:45 +0100, Barry wrote: > Suggest that you start with the use cases that you want supported. > Then you can turn them into a set of tests to check that the solution works.
Writing test cases is always a good idea :-) I have now written a first set of test cases: https://git.hjp.at:3000/hjp/timedeltacal (together with a quick and dirty implementation that passes them). That's not complete yet. If covers addition of timezone aware datetime values and timedeltacal values fairly well, and also tests the t0 + (t1 - t0) == t1 property I alluded to elsewhere in this thread. It doesn't test canonicalization yet (and indeed the prototype implementation is a mess in this regard) and subtracting timedeltacals from datetimes is also still missing. hp -- _ | Peter J. Holzer | Story must make more sense than reality. |_|_) | | | | | h...@hjp.at | -- Charles Stross, "Creative writing __/ | http://www.hjp.at/ | challenge!"
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