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package testing;
import java.io.File;
import java.util.*;
/**
* Runs protocol tests in headless mode without GUI errors.
* This replaces the old test runners that had GUI dependency issues.
*/
public class HeadlessProtocolRunner {
public static void main(String[] args) throws Exception {
System.out.println("=== DS-Sim Headless Protocol Test Runner ===\n");
// Check for verbose mode
boolean verbose = Boolean.getBoolean("ds.sim.verbose");
if (args.length > 0) {
// Run specific simulation
runSingleSimulation(args[0], verbose);
} else {
// Run all simulations
runAllSimulations(verbose);
}
}
private static void runSingleSimulation(String simFile, boolean verbose) throws Exception {
System.out.println("Running simulation: " + simFile);
System.out.println("-".repeat(50));
HeadlessSimulationRunner runner = new HeadlessSimulationRunner();
runner.setPrintLogs(verbose); // This will print logs in real-time during simulation
if (verbose) {
System.out.println("\n--- Real-Time Simulation Log Output ---");
System.out.println("(Logs show protocol actions as they happen)\n");
}
try {
long startTime = System.currentTimeMillis();
SimulationResult result = runner.runSimulation(simFile, 10000); // 10 second timeout
long duration = System.currentTimeMillis() - startTime;
if (verbose) {
System.out.println("--- End of Simulation ---\n");
}
System.out.println("✓ Completed in " + duration + "ms");
System.out.println(" Processes: " + result.getMetrics().getNumProcesses());
System.out.println(" Log entries: " + result.getMetrics().getTotalLogCount());
System.out.println(" Messages per process: " + result.getMetrics().getProcessMessageCounts());
// Count total messages sent
int totalMessages = result.getMetrics().getTotalMessageCount();
System.out.println(" Total messages sent: " + totalMessages);
// Check if any messages were sent
if (totalMessages == 0) {
System.err.println("\n⚠️ WARNING: No messages were sent during simulation!");
System.err.println(" This indicates the protocol may not be functioning correctly.");
if (!verbose) {
System.err.println(" Re-run with -Dds.sim.verbose=true for detailed output.");
}
// Mark as failure
throw new RuntimeException("Protocol test failed: No messages sent");
}
System.out.println();
} catch (Exception e) {
System.err.println("✗ FAILED: " + e.getMessage());
if (verbose) {
e.printStackTrace();
}
} finally {
runner.shutdown();
}
// Exit explicitly when running single simulation
System.exit(0);
}
private static void runAllSimulations(boolean verbose) throws Exception {
File simDir = new File("saved-simulations");
File[] simFiles = simDir.listFiles((dir, name) -> name.endsWith(".dat"));
if (simFiles == null || simFiles.length == 0) {
System.out.println("No simulation files found in saved-simulations/");
return;
}
Arrays.sort(simFiles);
System.out.println("Found " + simFiles.length + " simulations to test\n");
int passed = 0;
int failed = 0;
List<String> failures = new ArrayList<>();
for (File simFile : simFiles) {
System.out.println("Testing: " + simFile.getName());
System.out.println("-".repeat(50));
HeadlessSimulationRunner runner = new HeadlessSimulationRunner();
runner.setPrintLogs(verbose); // Print logs if verbose mode is enabled
try {
long startTime = System.currentTimeMillis();
SimulationResult result = runner.runSimulation(simFile.getPath(), 10000); // 10 second timeout
long duration = System.currentTimeMillis() - startTime;
System.out.println("✓ PASSED in " + duration + "ms");
System.out.println(" Logs: " + result.getMetrics().getTotalLogCount());
passed++;
} catch (Exception e) {
System.err.println("✗ FAILED: " + e.getMessage());
failed++;
failures.add(simFile.getName() + " - " + e.getMessage());
} finally {
runner.shutdown();
}
System.out.println();
}
// Summary
System.out.println("=".repeat(60));
System.out.println("Test Summary:");
System.out.println(" Total: " + simFiles.length);
System.out.println(" Passed: " + passed);
System.out.println(" Failed: " + failed);
if (!failures.isEmpty()) {
System.out.println("\nFailures:");
for (String failure : failures) {
System.out.println(" - " + failure);
}
}
System.out.println();
System.exit(failed > 0 ? 1 : 0);
}
}
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