[antlr-interest] gUnit: Test of a parser rule always fail

[Jim Idle]

Your lexer does not cater for spaces.

Jim

> -----Original Message-----
> From: antlr-interest-bounces at antlr.org [mailto:antlr-interest-
> bounces at antlr.org] On Behalf Of Simon Marchi
> Sent: Friday, May 20, 2011 3:33 PM
> To: antlr-interest at antlr.org
> Subject: [antlr-interest] gUnit: Test of a parser rule always fail
>
> Hello !
>
> I a trying to automatize the testing of my grammar using gUnit, but I
> ran into the following problem: when I try to test a parser rule, the
> input string is never recognized. The lexer rules can be tested without
> problem. I made a simple example to illustrate:
>
> Grammar file Cool.g:
> 	grammar Cool;
>
> 	options {language = Java;}
> 	@lexer::header {package a.b.c;}
> 	@header {package a.b.c;}
>
> 	// Parser rule
> 	fullName: FIRSTNAME LASTNAME;
>
> 	// Lexer tokens
> 	FIRSTNAME: 'SIMON';
> 	LASTNAME: 'MARCHI';
>
> gUnit file Cool.gunit:
> 	gunit Cool;
>
> 	@header {package a.b.c;}
>
> 	// The test case
> 	fullName:
> 	  "SIMON MARCHI" OK
>
> Normally, the test case should pass, since the input is part of the
> grammar. I use the ANTLR plugin inside Eclipse, and pasting the input
> ("SIMON MARCHI") in the interactive interpreter tells me that it is
> accepted by the rule fullName. However, the test fails. If I change
> from OK to FAIL, then the test passes (obviously).
>
> Is there anything I am doing wrong here ?
>
> Thank you,
>
> Simon
>
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