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add test showing EOF leaf not in source interval of tree

This commit is contained in:
parrt 2015-06-11 10:35:53 -07:00
parent 8cf7082e89
commit 2da28ee5b2
1 changed files with 17 additions and 2 deletions
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19
tool/test/org/antlr/v4/test/tool/TestParserInterpreter.java
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@ -65,7 +65,21 @@ public class TestParserInterpreter extends BaseTest {
"s : A ;",
lg);
testInterp(lg, g, "s", "a", "(s a)");
ParseTree t = testInterp(lg, g, "s", "a", "(s a)");
assertEquals("0..0", t.getSourceInterval().toString());
}
@Test public void testEOF() throws Exception {
LexerGrammar lg = new LexerGrammar(
"lexer grammar L;\n" +
"A : 'a' ;\n");
Grammar g = new Grammar(
"parser grammar T;\n" +
"s : A EOF ;",
lg);
ParseTree t = testInterp(lg, g, "s", "a", "(s a <EOF>)");
assertEquals("0..1", t.getSourceInterval().toString());
}
@Test public void testAorB() throws Exception {
@ -234,7 +248,7 @@ public class TestParserInterpreter extends BaseTest {
testInterp(lg, g, "e", "a+a*a", "(e (e a) + (e (e a) * (e a)))");
}
void testInterp(LexerGrammar lg, Grammar g,
ParseTree testInterp(LexerGrammar lg, Grammar g,
String startRule, String input,
String expectedParseTree)
{
@ -244,5 +258,6 @@ public class TestParserInterpreter extends BaseTest {
ParseTree t = parser.parse(g.rules.get(startRule).index);
System.out.println("parse tree: "+t.toStringTree(parser));
assertEquals(expectedParseTree, t.toStringTree(parser));
return t;
}
}