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diff --git a/test/built-ins/TypedArray/prototype/lastIndexOf/BigInt/fromIndex-infinity.js b/test/built-ins/TypedArray/prototype/lastIndexOf/BigInt/fromIndex-infinity.js
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+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.lastindexof
+description: handle Infinity values for fromIndex
+info: |
+  22.2.3.17 %TypedArray%.prototype.lastIndexOf ( searchElement [ , fromIndex ] )
+
+  %TypedArray%.prototype.lastIndexOf is a distinct function that implements the
+  same algorithm as Array.prototype.lastIndexOf as defined in 22.1.3.15 except
+  that the this object's [[ArrayLength]] internal slot is accessed in place of
+  performing a [[Get]] of "length".
+
+  22.1.3.15 Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] )
+
+  ...
+  5. If n ≥ 0, then
+    a. If n is -0, let k be +0; else let k be min(n, len - 1).
+  6. Else n < 0,
+    a. Let k be len + n.
+  7. Repeat, while k ≥ 0
+  ...
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA(convertToBigInt([42, 43, 43, 41]));
+
+  assert.sameValue(sample.lastIndexOf(convertToBigInt(43), Infinity), 2, "lastIndexOf(43, Infinity)");
+  assert.sameValue(sample.lastIndexOf(convertToBigInt(43), -Infinity), -1, "lastIndexOf(43, -Infinity)");
+});