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test added to check a user issue

This commit is contained in:
ericvergnaud 2015-05-31 17:17:33 +08:00
parent 3f9cb4b12f
commit 2e06ed8360
3 changed files with 30 additions and 0 deletions
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4
tool/test/org/antlr/v4/test/rt/gen/Generator.java
View File

@ -567,6 +567,10 @@ public class Generator {
"aa", "aa",
"", "",
"line 1:1 mismatched input 'a' expecting 'b'\n"); "line 1:1 mismatched input 'a' expecting 'b'\n");
file.addParserTest(input, "TokenMismatch2", "T", "stat",
"( ~FORCE_ERROR~ ",
"",
"line 1:2 mismatched input '~FORCE_ERROR~' expecting ')'\n");
file.addParserTest(input, "SingleTokenDeletion", "T", "a", file.addParserTest(input, "SingleTokenDeletion", "T", "a",
"aab", "aab",
"", "",

9
tool/test/org/antlr/v4/test/rt/gen/grammars/ParserErrors/TokenMismatch2.st Normal file
View File

@ -0,0 +1,9 @@
grammar <grammarName>;
stat: ( '(' expr? ')' )? EOF ;
expr: ID '=' STR ;
ERR : '~FORCE_ERROR~' ;
ID : [a-zA-Z]+ ;
STR : '"' ~["]* '"' ;
WS : [ \t\r\n]+ -> skip ;

17
tool/test/org/antlr/v4/test/rt/java/TestParserErrors.java
View File

@ -17,6 +17,23 @@ public class TestParserErrors extends BaseTest {
assertEquals("line 1:1 mismatched input 'a' expecting 'b'\n", this.stderrDuringParse); assertEquals("line 1:1 mismatched input 'a' expecting 'b'\n", this.stderrDuringParse);
} }
/* this file and method are generated, any edit will be overwritten by the next generation */
@Test
public void testTokenMismatch2() throws Exception {
String grammar = "grammar T;\n" +
"\n" +
"stat: ( '(' expr? ')' )? EOF ;\n" +
"expr: ID '=' STR ;\n" +
"\n" +
"ERR : '~FORCE_ERROR~' ;\n" +
"ID : [a-zA-Z]+ ;\n" +
"STR : '\"' ~[\"]* '\"' ;\n" +
"WS : [ \\t\\r\\n]+ -> skip ;";
String found = execParser("T.g4", grammar, "TParser", "TLexer", "stat", "( ~FORCE_ERROR~ ", false);
assertEquals("", found);
assertEquals("line 1:2 mismatched input '~FORCE_ERROR~' expecting ')'\n", this.stderrDuringParse);
}
/* this file and method are generated, any edit will be overwritten by the next generation */ /* this file and method are generated, any edit will be overwritten by the next generation */
@Test @Test
public void testSingleTokenDeletion() throws Exception { public void testSingleTokenDeletion() throws Exception {