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package org.json.simple.parser;
import java.io.IOException;
import java.io.StringReader;
import junit.framework.TestCase;
public class YylexTest extends TestCase {
public void testYylex() throws Exception{
String s="\"\\/\"";
System.out.println(s);
StringReader in = new StringReader(s);
Yylex lexer=new Yylex(in);
Yytoken token=lexer.yylex();
assertEquals(Yytoken.TYPE_VALUE,token.type);
assertEquals("/",token.value);
s="\"abc\\/\\r\\b\\n\\t\\f\\\\\"";
System.out.println(s);
in = new StringReader(s);
lexer=new Yylex(in);
token=lexer.yylex();
assertEquals(Yytoken.TYPE_VALUE,token.type);
assertEquals("abc/\r\b\n\t\f\\",token.value);
s="[\t \n\r\n{ \t \t\n\r}";
System.out.println(s);
in = new StringReader(s);
lexer=new Yylex(in);
token=lexer.yylex();
assertEquals(Yytoken.TYPE_LEFT_SQUARE,token.type);
token=lexer.yylex();
assertEquals(Yytoken.TYPE_LEFT_BRACE,token.type);
token=lexer.yylex();
assertEquals(Yytoken.TYPE_RIGHT_BRACE,token.type);
s="\b\f{";
System.out.println(s);
in = new StringReader(s);
lexer=new Yylex(in);
ParseException err=null;
try{
token=lexer.yylex();
}
catch(ParseException e){
err=e;
System.out.println("error:"+err);
assertEquals(ParseException.ERROR_UNEXPECTED_CHAR, e.getErrorType());
assertEquals(0,e.getPosition());
assertEquals(new Character('\b'),e.getUnexpectedObject());
}
catch(IOException ie){
throw ie;
}
assertTrue(err!=null);
s="{a : b}";
System.out.println(s);
in = new StringReader(s);
lexer=new Yylex(in);
err=null;
try{
lexer.yylex();
token=lexer.yylex();
}
catch(ParseException e){
err=e;
System.out.println("error:"+err);
assertEquals(ParseException.ERROR_UNEXPECTED_CHAR, e.getErrorType());
assertEquals(new Character('a'),e.getUnexpectedObject());
assertEquals(1,e.getPosition());
}
catch(IOException ie){
throw ie;
}
assertTrue(err!=null);
}
}
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