[Vm-dev] About Unit tests

Andrey Larionov anlarionov at gmail.com
Sat Sep 5 16:43:49 UTC 2009

As i understand, NuBlt shoud produce analogous results as BitBlt, so
it will be realy simple to test new plugin for conformance with
another. But...

Maybe we should test produced C code? Write tests in Slang and then if
any tests generated, run it before final assembly procedure during

On Sat, Sep 5, 2009 at 20:33, David T. Lewis<lewis at mail.msen.com> wrote:
> On Sat, Sep 05, 2009 at 08:06:59PM +0400, Andrey Larionov wrote:
>> I found information about uncomplete NuBlt plugin. I have an idea try
>> to complete work.
>> Even plugins write in Slang it strange what there are no unit tests
>> for them. Unit tests allows some users to contribute without fair to
>> broke something
>> Is Slang code can be simple eveluated or it need simulation to run tests?
> Some plugins have unit tests, and many do not. If NuBlt does not have
> tests, it would definitely be a good idea to write some.
> Slang code can be directly evaluated as Smalltalk, but this is not
> always useful because you need to really deal with the code as it
> is translated to C (SlangBrowser may help you here, see
> http://wiki.squeak.org/squeak/5916).
> When writing unit tests for a plugin, it is common to write tests that
> call the primitive in the plugin, and test for the expected result.
> Also, if your method that calls the primitive is going to use fallback
> code so it works when the primitive fails, you can write tests to
> verify that the primitive produces results identical to the Smalltalk
> fallback code.
> Dave

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