updated SIGINT handler - call only once mochajs#3570

lib/cli/run-helpers.js

@@ -196,19 +196,15 @@ exports.singleRun = (mocha, {files = [], exit = false} = {}) => {
   mocha.files = files;
   const runner = mocha.run(exit ? exitMocha : exitMochaLater);
 
-  process.on('SIGINT', function forceStop() {
-    if (forceStop.lock === undefined) {
-      forceStop.lock = true;
-      debug('aborting runner');
-      runner.abort();
-
-      // This is a hack:
-      // Instead of `process.exit(130)`, set runner.failures to 130 (exit code for SIGINT)
-      // The amount of failures will be emitted as error code later
-      runner.failures = 130;
-      // Reraising the signal
-      setImmediate(() => process.kill(process.pid, 'SIGINT'));
-    }
+  process.once('SIGINT', () => {
+    debug('aborting runner');
+    runner.abort();
+
+    // This is a hack:
+    // Instead of `process.exit(130)`, set runner.failures to 130 (exit code for SIGINT)
+    // The amount of failures will be emitted as error code later
+    runner.failures = 130;
+    setImmediate(() => process.kill(process.pid, 'SIGINT'));
   });
 };