1 files changed, 27 insertions, 0 deletions
diff --git a/node_modules/is-url/test/index.js b/node_modules/is-url/test/index.js
index 5f7aebce1..404e1b6f0 100644
--- a/node_modules/is-url/test/index.js
+++ b/node_modules/is-url/test/index.js
@@ -118,5 +118,32 @@ describe('is-url', function () {
     it('google.com', function () {
       assert(!url('google.com'));
     });
+
+    it('empty', function () {
+      assert(!url(''));
+    });
+
+    it('undef', function () {
+      assert(!url(undefined));
+    });
+
+    it('object', function () {
+      assert(!url({}));
+    });
+
+    it('re', function () {
+      assert(!url(/abc/));
+    });
+  });
+
+  describe('redos', function () {
+    it('redos exploit', function () {
+      // Invalid. This should be discovered in under 1 second.
+      var attackString = 'a://localhost' + '9'.repeat(100000) + '\t';
+      var before = process.hrtime();
+      assert(!url(attackString), 'attackString was valid');
+      var elapsed = process.hrtime(before);
+      assert(elapsed[0] < 1, 'attackString took ' + elapsed[0] + ' > 1 seconds');
+    });
   });
 });