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diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/findIndex/predicate-call-changes-value.js b/js/src/tests/test262/built-ins/TypedArray/prototype/findIndex/predicate-call-changes-value.js
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+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/findIndex/predicate-call-changes-value.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.findindex
+description: >
+  Change values during predicate call
+info: |
+  22.2.3.11 %TypedArray%.prototype.findIndex ( predicate [ , thisArg ] )
+
+  %TypedArray%.prototype.findIndex is a distinct function that implements the
+  same algorithm as Array.prototype.findIndex as defined in 22.1.3.9 except that
+  the this object's [[ArrayLength]] internal slot is accessed in place of
+  performing a [[Get]] of "length".
+
+  ...
+
+  22.1.3.9 Array.prototype.findIndex ( predicate[ , thisArg ] )
+
+  ...
+  6. Repeat, while k < len
+    ...
+    c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
+  ...
+includes: [compareArray.js, testTypedArray.js]
+features: [TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var arr = [10, 20, 30];
+  var sample;
+  var result;
+
+  sample = new TA(3);
+  sample.findIndex(function(val, i) {
+    sample[i] = arr[i];
+
+    assert.sameValue(val, 0, "value is not mapped to instance");
+  });
+  assert(compareArray(sample, arr), "values set during each predicate call");
+
+  sample = new TA(arr);
+  result = sample.findIndex(function(val, i) {
+    if ( i === 0 ) {
+      sample[2] = 7;
+    }
+    return val === 7;
+  });
+  assert.sameValue(result, 2, "value found");
+
+  sample = new TA(arr);
+  result = sample.findIndex(function(val, i) {
+    if ( i === 0 ) {
+      sample[2] = 7;
+    }
+    return val === 30;
+  });
+  assert.sameValue(result, -1, "value not found");
+
+  sample = new TA(arr);
+  result = sample.findIndex(function(val, i) {
+    if ( i > 0 ) {
+      sample[0] = 7;
+    }
+    return val === 7;
+  });
+  assert.sameValue(result, -1, "value not found - changed after call");
+});
+
+reportCompare(0, 0);