[antlr-interest] Status of gUnit?
Terence Parr
parrt at cs.usfca.edu
Sat Feb 26 12:49:38 PST 2011
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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