Do not remove listeners that do not exist

2019-09-26 19:02:06 +02:00
parent 3a10476c1c
commit fd594c2001
2 changed files with 14 additions and 12 deletions
@@ -64,9 +64,12 @@ describe('ol.events.EventTarget', function() {
      eventTarget.removeEventListener('foo', spy1, false);
      expect(eventTarget.listeners_['foo']).to.have.length(1);
    });
-    it('does nothing when called with undefined listener', function() {
+    it('does not remove listeners when the specified listener is not found', function() {
      eventTarget.addEventListener('foo', spy1);
+      eventTarget.addEventListener('foo', spy2);
      eventTarget.removeEventListener('foo', undefined);
+      eventTarget.removeEventListener('foo', spy2);
+      eventTarget.removeEventListener('foo', spy2);
      expect(eventTarget.listeners_['foo']).to.eql([spy1]);
    });
  });