events: do not accept NaN in setMaxListeners

1 files changed, 12 insertions, 0 deletions

diff --git a/test/simple/test-event-emitter-max-listeners.js b/test/simple/test-event-emitter-max-listeners.js
index 3dea94bccf..dfc3e1352d 100644
--- a/test/simple/test-event-emitter-max-listeners.js
+++ b/test/simple/test-event-emitter-max-listeners.js
@@ -38,4 +38,16 @@ e.on('maxListeners', function() {
 // Should not corrupt the 'maxListeners' queue.
 e.setMaxListeners(42);
 
+assert.throws(function() {
+  e.setMaxListeners(NaN);
+});
+
+assert.throws(function() {
+  e.setMaxListeners(-1);
+});
+
+assert.throws(function() {
+  e.setMaxListeners("and even this");
+});
+
 e.emit('maxListeners');