[fpc-devel] Definition of the time-fration in a TDateTime before 30/12/1899

[Florian Klaempfl]

Michael Van Canneyt wrote:
> 
> 
> On Mon, 22 May 2006, Florian Klaempfl wrote:
> 
>> Michael Van Canneyt wrote:
>>>
>>>
>>> On Mon, 22 May 2006, Graeme Geldenhuys wrote:
>>>
>>>> On 5/22/06, Bram Kuijvenhoven <kuifwaremailinglists at xs4all.nl> wrote:
>>>>> I guess we will need plenty of unit tests to make sure all the
>>>>> functions
>>>> work consistent, in particular also for dates close to and before
>>>> 29-12-1899 :)
>>>>>
>>>>> (Note: I sent some mail explaining the TryEncodeDateTime function
>>>>> some time
>>>> ago (21-4-2006), on Graeme's request. I also mentioned an overflow
>>>> problem in that code + how to fix. Perhaps this fix can be integrated
>>>> into the code as well.)
>>>>>
>>>>
>>>> Hi Bram,
>>>>
>>>> Yeah, I had my share of uphill battles with old dates (Delphi and
>>>> FPC).  I works fine with recent dates, but don't venture to far off!!
>>>>
>>>> I already have a collection of unit tests for dates, which is
>>>> incorporated into our products unit tests.  We use fpcUnit
>>>> extensively.  I could always extend those tests a bit more, but as far
>>>> as I understand, FPC developers dont' use fpcUnit, but rather some
>>>> custom testing framework.
>>>
>>> 1. fpcunit didn't exist at the time the FPC tests were implemented.
>>> 2. Using FPCunit creates a dependency on it. The tests can run mostly
>>>    with only the system unit...
>>
>> Which dependencies? Maybe they can be reduced and a fpcunit can be
>> added to tests?
> 
> fpcunit depends on not so much, but I want to avoid using the FCL in the
> testsuite... Creating a copy seems rather silly too...

You can create an svn:external to important that one from the fcl without
creating a real copy.