Merge pull request #1413 from leobalter/cxielarko-bigint-ta-3

BigInt+TypedArray tests, splitted

1 files changed, 43 insertions, 0 deletions

diff --git a/test/built-ins/TypedArrays/ctors-bigint/typedarray-arg/typedarray-arg-other-ctor-buffer-ctor-species-undefined.js b/test/built-ins/TypedArrays/ctors-bigint/typedarray-arg/typedarray-arg-other-ctor-buffer-ctor-species-undefined.js
new file mode 100644
index 000000000..a6cfd230f
--- /dev/null
+++ b/test/built-ins/TypedArrays/ctors-bigint/typedarray-arg/typedarray-arg-other-ctor-buffer-ctor-species-undefined.js
@@ -0,0 +1,43 @@
+// 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-typedarray
+description: >
+  Use default ArrayBuffer constructor on undefined buffer.constructor.@@species
+info: |
+  22.2.4.3 TypedArray ( typedArray )
+
+  This description applies only if the TypedArray function is called with at
+  least one argument and the Type of the first argument is Object and that
+  object has a [[TypedArrayName]] internal slot.
+
+  ...
+  18. Else,
+    a. Let bufferConstructor be ? SpeciesConstructor(srcData, %ArrayBuffer%).
+  ...
+
+  7.3.20 SpeciesConstructor ( O, defaultConstructor )
+
+  ...
+  5. Let S be ? Get(C, @@species).
+  6. If S is either undefined or null, return defaultConstructor.
+  ...
+includes: [testBigIntTypedArray.js]
+features: [BigInt, Symbol.species, TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var OtherCtor = TA === Int8Array ? Int16Array : Int8Array;
+  var sample = new OtherCtor();
+  var ctor = {};
+
+  sample.buffer.constructor = ctor;
+
+  ctor[Symbol.species] = undefined;
+  var a = new TA(sample);
+  assert.sameValue(
+    Object.getPrototypeOf(a.buffer),
+    ArrayBuffer.prototype,
+    "buffer ctor is not called when species is undefined"
+  );
+});