[antlr-interest] Status of gUnit?

[Alan D. Cabrera]

Yep, this is the best example.  I have just peppered it with useful comments.


Regards,
Alan

On Feb 26, 2011, at 12:52 PM, Ben Karel wrote:

> It looks like there's an example here:
> 
> https://github.com/maguro/aunit/blob/master/it/src/test/java/com/toolazydogs/aunit/CMinusTest.java
> 
> On Sat, Feb 26, 2011 at 3:49 PM, Terence Parr <parrt at cs.usfca.edu> wrote:
> 
>> No description of what it does exactly. example?
>> T
>> On Feb 26, 2011, at 12:37 PM, Alan D. Cabrera wrote:
>> 
>>> As an alternative to gUnit I invite you to take a look at
>>> 
>>> https://github.com/maguro/aunit
>>> 
>>> Comments and suggestions are welcome.
>>> 
>>> 
>>> Regards,
>>> Alan
>>> 
>>> On Feb 23, 2011, at 11:28 AM, antlr at xrad.org wrote:
>>> 
>>>> 
>>>> Hi there,
>>>> 
>>>> I'm wondering what the status of gUnit is these days?  The SimpleC
>>>> example on the introductory web page fails when run against
>>>> examples-v3/java/LL-star/SimpleC.g, and various experiments of mine
>>>> don't seem to come out as expected either.
>>>> 
>>>> http://www.antlr.org/wiki/display/ANTLR3/gUnit+-+Grammar+Unit+Testing
>>>> 
>>>> .. as is, this fails because
>>>> 
>>>> "int x;" -> OK
>>>> 
>>>> doesn't appear to be valid in the current grammar (I'm using
>>>> antlr-3.3-complete.jar) --- the "->" appears to be the problem, but if I
>>>> remove it then I get unexpected failures --- on the above test, for
>>>> example, all four of the OKs actually FAIL, even though the web page
>>>> suggests that three of them should pass:
>>>> 
>>>> -----------------------------------------------------------------------
>>>> executing testsuite for grammar:SimpleC with 11 tests
>>>> -----------------------------------------------------------------------
>>>> 6 failures found:
>>>> test2 (variable, line7) -
>>>> expected: OK
>>>> actual: FAIL
>>>> 
>>>> test3 (functionHeader, line11) -
>>>> expected: int
>>>> actual: Invalid input
>>>> 
>>>> test4 (program, line15) -
>>>> expected: OK
>>>> actual: FAIL
>>>> 
>>>> test5 (program, line20) -
>>>> expected: OK
>>>> actual: FAIL
>>>> 
>>>> test6 (program, line22) -
>>>> expected:
>>>> actual: Invalid input
>>>> 
>>>> test8 (ID, line28) -
>>>> expected: OK
>>>> actual: extra text found, '@999'
>>>> 
>>>> Tests run: 11, Failures: 6
>>>> 
>>>> I get the same experience in my own code.  This grammar:
>>>> 
>>>> grammar Simple;
>>>> input : 'yes' ;
>>>> 
>>>> when run with this test:
>>>> 
>>>> gunit Simple;
>>>> input:
>>>> "yes" OK
>>>> "x" FAIL
>>>> 
>>>> fails as follows:
>>>> 
>>>> -----------------------------------------------------------------------
>>>> executing testsuite for grammar:Simple with 2 tests
>>>> -----------------------------------------------------------------------
>>>> 1 failures found:
>>>> test1 (input, line3) -
>>>> expected: OK
>>>> actual: FAIL
>>>> 
>>>> Tests run: 2, Failures: 1
>>>> 
>>>> Finally, the thing I would really like to do is to test my rewriting
>>>> grammar translator.  This doesn't work either --- there seems to be a
>>>> fundamental problem with rewriting grammars in gUnit's internals:
>>>> 
>>>> grammar Simple;
>>>> options { output=template; rewrite=true; }
>>>> input : 'yes' -> template() "no" ;
>>>> 
>>>> tested with this:
>>>> 
>>>> gunit Simple;
>>>> input:
>>>> "yes" -> "no"
>>>> 
>>>> results in this:
>>>> 
>>>> -----------------------------------------------------------------------
>>>> executing testsuite for grammar:Simple with 1 tests
>>>> -----------------------------------------------------------------------
>>>> 1 failures found:
>>>> test1 (input, line3) -
>>>> expected: no
>>>> actual: java.lang.ClassCastException:
>> org.antlr.runtime.CommonTokenStream can
>>>> not be cast to org.antlr.runtime.TokenRewriteStream
>>>> 
>>>> Tests run: 1, Failures: 1
>>>> 
>>>> ... any suggestions?  I tried rebuilding gUnit after editing the
>>>> offending CommonTokenStream declarations in gUnitExecutor to
>>>> TokenRewriteStreams --- just to see if it helped --- and it does make
>>>> things work again, at least with this trivial example.  Not so clear
>>>> with more complex stuff though.  Something similar to this seemed to be
>>>> reported a few years back (without official response), so I'm wondering
>>>> whether gUnit's no longer actively maintained?
>>>> 
>>>> Conrad
>>>> 
>>>> List: http://www.antlr.org/mailman/listinfo/antlr-interest
>>>> Unsubscribe:
>> http://www.antlr.org/mailman/options/antlr-interest/your-email-address
>>> 
>>> 
>>> List: http://www.antlr.org/mailman/listinfo/antlr-interest
>>> Unsubscribe:
>> http://www.antlr.org/mailman/options/antlr-interest/your-email-address
>> 
>> 
>> List: http://www.antlr.org/mailman/listinfo/antlr-interest
>> Unsubscribe:
>> http://www.antlr.org/mailman/options/antlr-interest/your-email-address
>> 
> 
> List: http://www.antlr.org/mailman/listinfo/antlr-interest
> Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address