[antlr-interest] Status of gUnit?

[Terence Parr]

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
>> 
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> 
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