1 files changed, 42 insertions, 0 deletions
diff --git a/test/built-ins/TypedArrays/internals/DefineOwnProperty/BigInt/key-is-numericindex.js b/test/built-ins/TypedArrays/internals/DefineOwnProperty/BigInt/key-is-numericindex.js
new file mode 100644
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+++ b/test/built-ins/TypedArrays/internals/DefineOwnProperty/BigInt/key-is-numericindex.js
@@ -0,0 +1,42 @@
+// 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-integer-indexed-exotic-objects-defineownproperty-p-desc
+description: >
+  Returns true after setting a valid numeric index key
+info: |
+  9.4.5.3 [[DefineOwnProperty]] ( P, Desc)
+  ...
+  3. If Type(P) is String, then
+    a. Let numericIndex be ! CanonicalNumericIndexString(P).
+    b. If numericIndex is not undefined, then
+      ...
+      x. If Desc has a [[Writable]] field and if Desc.[[Writable]] is false,
+      return false.
+  ...
+includes: [testBigIntTypedArray.js, propertyHelper.js]
+features: [BigInt, Reflect, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA(convertToBigInt([42, 42]));
+
+  assert.sameValue(
+    Reflect.defineProperty(sample, "0", {
+      value: convertToBigInt(8),
+      configurable: false,
+      enumerable: true,
+      writable: true
+    }),
+    true
+  );
+
+  assert.sameValue(sample[0], convertToBigInt(8), "property value was set");
+  var desc = Object.getOwnPropertyDescriptor(sample, "0");
+
+  assert.sameValue(desc.value, convertToBigInt(8), "desc.value");
+  assert.sameValue(desc.writable, true, "property is writable");
+
+  verifyEnumerable(sample, "0");
+  verifyNotConfigurable(sample, "0");
+});