1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/no-arg.js b/js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/no-arg.js
new file mode 100644
index 0000000000..850f393c60
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+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/lastIndexOf/no-arg.js
@@ -0,0 +1,31 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.lastindexof
+description: >
+  If `searchElement` is not supplied, -1 is returned.
+info: |
+  %TypedArray%.prototype.lastIndexOf ( searchElement [ , fromIndex ] )
+
+  %TypedArray%.prototype.lastIndexOf is a distinct function that implements
+  the same algorithm as Array.prototype.lastIndexOf as defined in 22.1.3.17
+  except that the this value's [[ArrayLength]] internal slot is accessed
+  in place of performing a [[Get]] of "length".
+
+  Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] )
+
+  [...]
+  8. Return -1.
+includes: [testTypedArray.js]
+features: [TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var ta1 = new TA();
+  assert.sameValue(ta1.lastIndexOf(), -1);
+
+  var ta2 = new TA([0, 1, 2]);
+  assert.sameValue(ta2.lastIndexOf(), -1);
+});
+
+reportCompare(0, 0);