/*
* Copyright ( c ) 1998 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
/*
* @ test
* @ bug 4127657
* @ summary Check for correct handling of parameters to
* XXXXReader . read ( b , off , len ) .
*
*/
import java.io.*;
public class ReadParams {
static int values[] = {Integer.MIN_VALUE, -1 , 0 , 1 , 4 , 16 , 31 ,
32 , 33 , Integer.MAX_VALUE};
static char b[][] = {null , new char [32 ]};
static void test(Reader rdr) throws Exception {
int i = 0 , j = 0 , k = 0 ;
boolean nullPtr = false , indexOutBnd = false ;
for (i = 0 ; i < b.length; i++) {
for ( j = 0 ; j < values.length; j++) {
for ( k = 0 ; k < values.length; k++) {
nullPtr = (b[i] == null );
int bufLen = nullPtr ? 0 : b[i].length;
indexOutBnd = ((values[j] + values[k]) < 0 )
||(values[j] < 0 )
|| (values[j] > bufLen)
|| (values[k] < 0 )
|| ((values[j] + values[k]) > bufLen);
try {
rdr.read(b[i], values[j], values[k]);
} catch (NullPointerException e) {
if (!nullPtr) {
throw new Exception
("should not throw NullPointerException" + i + " " +j + " " + k);
}
continue ;
} catch (IndexOutOfBoundsException e) {
if (!indexOutBnd) {
throw new Exception
("should not throw IndexOutOfBoundsException" );
}
continue ;
}
if (nullPtr || indexOutBnd) {
throw new Exception("Should have thrown an exception" );
}
}
}
}
}
public static void main(String args[]) throws Exception{
StringReader sr = new StringReader(new String(new byte [512 ]));
test(sr);
test(new BufferedReader(sr));
test(new CharArrayReader(new char [8 ]));
InputStreamReader ir = new InputStreamReader
(new ByteArrayInputStream(new byte [512 ]));
test(ir);
test(new PushbackReader(sr, 2 ));
PipedWriter pw = new PipedWriter();
PipedReader pir = new PipedReader(pw);
pw.write(new char [512 ], 0 , 512 );
test(pir);
}
}
Messung V0.5 in Prozent C=96 H=90 G=93
¤ Dauer der Verarbeitung: 0.16 Sekunden
(vorverarbeitet am 2026-06-10)
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