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package testing;
import java.io.PrintStream;
import java.io.OutputStream;
/**
* A test runner that suppresses GUI-related error messages while still showing test results.
* This provides a cleaner output when running headless tests.
*/
public class QuietProtocolTestRunner {
public static void main(String[] args) {
// Create a custom PrintStream that filters out specific error messages
PrintStream originalErr = System.err;
PrintStream filteredErr = new PrintStream(new FilteredOutputStream(originalErr));
try {
// Redirect System.err to our filtered stream
System.setErr(filteredErr);
// Run the actual test runner
System.out.println("=== DS-Sim Protocol Test Runner (Quiet Mode) ===\n");
System.out.println("Note: GUI errors are suppressed for cleaner output.\n");
// Pass through any arguments (like -v for verbose)
ProtocolTestRunnerWithLogs.main(args);
} finally {
// Restore original error stream
System.setErr(originalErr);
}
}
/**
* An OutputStream that filters out specific error messages.
*/
private static class FilteredOutputStream extends OutputStream {
private final PrintStream target;
private final StringBuilder buffer = new StringBuilder();
public FilteredOutputStream(PrintStream target) {
this.target = target;
}
@Override
public void write(int b) {
buffer.append((char) b);
// Check if we have a complete line
if (b == '\n') {
String line = buffer.toString();
// Filter out specific GUI-related errors
if (!line.contains("Component must have a valid peer") &&
!line.contains("java.lang.IllegalStateException") &&
!line.contains("at java.desktop/") &&
!line.contains("at simulator.VSSimulatorVisualization.paint") &&
!line.contains("createBufferStrategy") &&
!line.contains("FlipBufferStrategy")) {
// Pass through other messages
target.print(line);
}
buffer.setLength(0);
}
}
@Override
public void flush() {
target.flush();
}
@Override
public void close() {
target.close();
}
}
}
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