Prasanta Sadhukhan a17fce7507 6445283: ProgressMonitorInputStream not large file aware (>2GB)
Reviewed-by: azvegint, prr
2022-08-22 11:13:33 +00:00

91 lines
2.9 KiB
Java

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/* @test
* @bug 8054572
* @library /java/awt/regtesthelpers
* @build PassFailJFrame
* @summary Tests if JComboBox displays correctly when editable/non-editable
* @run main/manual ProgressTest
*/
import java.io.InputStream;
import javax.swing.JFrame;
import javax.swing.ProgressMonitorInputStream;
import javax.swing.SwingUtilities;
public class ProgressTest {
private static final String instructionsText =
"A ProgressMonitor will be shown." +
" If it shows blank progressbar after 2048MB bytes read,"+
" press Fail else press Pass";
private static JFrame frame;
public static void main(String[] args) throws Exception {
PassFailJFrame pfjFrame = new PassFailJFrame("JScrollPane "
+ "Test Instructions", instructionsText, 5);
final long SIZE = (long) (Integer.MAX_VALUE * 1.5);
InputStream fileIn = new InputStream() {
long read = 0;
@Override
public int available() {
return (int) Math.min(SIZE - read, Integer.MAX_VALUE);
}
@Override
public int read() {
return (SIZE - read++ > 0) ? 1 : -1;
}
};
ProgressMonitorInputStream pmis =
new ProgressMonitorInputStream(null, "Reading File", fileIn);
Thread thread = new Thread() {
public void run() {
byte[] buffer = new byte[512];
int nb = 0;
long total = 0;
while (true) {
try {
nb = pmis.read(buffer);
} catch (Exception e){}
if (nb == 0) break;
total += nb;
pmis.getProgressMonitor().setNote(total/(1024*1024)+" MB Read");
}
}
};
thread.start();
pfjFrame.awaitAndCheck();
}
}