106 lines
3.3 KiB
Java
106 lines
3.3 KiB
Java
/*
|
|
* Copyright (c) 1998, 2020, 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 4074875 4063511 8235792
|
|
@summary Make sure LineNumberReader.read(char, int , int) will increase
|
|
the linenumber correctly.
|
|
*/
|
|
|
|
import java.io.IOException;
|
|
import java.io.LineNumberReader;
|
|
import java.io.StringReader;
|
|
import java.util.function.Consumer;
|
|
|
|
public class Read {
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
testReadChars();
|
|
testEofs();
|
|
}
|
|
|
|
private static void testReadChars() throws Exception {
|
|
String s = "aaaa\nbbb\n";
|
|
char[] buf = new char[5];
|
|
int n = 0;
|
|
int line = 0;
|
|
|
|
LineNumberReader r = new LineNumberReader(new StringReader(s));
|
|
|
|
do {
|
|
n = r.read(buf, 0, buf.length);
|
|
} while (n > 0);
|
|
|
|
line = r.getLineNumber();
|
|
|
|
if (line != 2)
|
|
throw new Exception("Failed test: Expected line number: 2, got "
|
|
+ line);
|
|
}
|
|
|
|
private static void testEofs() throws Exception {
|
|
String string = "first \n second";
|
|
|
|
Consumer<LineNumberReader> c = (LineNumberReader r) -> {
|
|
try {
|
|
while (r.read() != -1)
|
|
continue;
|
|
} catch (IOException e) {
|
|
throw new RuntimeException(e);
|
|
}
|
|
};
|
|
testEof(c, string, 2);
|
|
|
|
c = (LineNumberReader r) -> {
|
|
try {
|
|
char[] buf = new char[128];
|
|
while (r.read(buf) != -1)
|
|
continue;
|
|
} catch (IOException e) {
|
|
throw new RuntimeException(e);
|
|
}
|
|
};
|
|
testEof(c, string, 2);
|
|
|
|
c = (LineNumberReader r) -> {
|
|
try {
|
|
while (r.readLine() != null)
|
|
continue;
|
|
} catch (IOException e) {
|
|
throw new RuntimeException(e);
|
|
}
|
|
};
|
|
testEof(c, string, 2);
|
|
}
|
|
|
|
private static void testEof(Consumer<LineNumberReader> c, String s, int n)
|
|
throws Exception {
|
|
LineNumberReader r = new LineNumberReader(new StringReader(s));
|
|
c.accept(r);
|
|
int line;
|
|
if ((line = r.getLineNumber()) != n)
|
|
throw new Exception("Failed test: Expected line number: " + n +
|
|
" , got " + line);
|
|
}
|
|
}
|