1 files changed, 51 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/slice/BigInt/detached-buffer-zero-count-custom-ctor-same-targettype.js b/js/src/tests/test262/built-ins/TypedArray/prototype/slice/BigInt/detached-buffer-zero-count-custom-ctor-same-targettype.js
new file mode 100644
index 0000000000..3d322aedb8
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+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/slice/BigInt/detached-buffer-zero-count-custom-ctor-same-targettype.js
@@ -0,0 +1,51 @@
+// 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.slice
+description: >
+  Does not throw a TypeError if buffer is detached on custom constructor and
+  count <= 0. Using same targetType.
+info: |
+  22.2.3.24 %TypedArray%.prototype.slice ( start, end )
+
+  Let A be ? TypedArraySpeciesCreate(O, « count »).
+  If count > 0, then
+    ...
+  Return A
+includes: [testBigIntTypedArray.js, detachArrayBuffer.js]
+features: [align-detached-buffer-semantics-with-web-reality, BigInt, Symbol.species, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  let counter = 0;
+  let sample, result, other;
+  let ctor = {};
+  ctor[Symbol.species] = function(count) {
+    counter++;
+    $DETACHBUFFER(sample.buffer);
+    other = new TA(count);
+    return other;
+  };
+
+  sample = new TA(0);
+  sample.constructor = ctor;
+  result = sample.slice();
+  assert.sameValue(result.length, 0, 'The value of result.length is 0');
+  assert.notSameValue(result.buffer, sample.buffer, 'The value of result.buffer is expected to not equal the value of `sample.buffer`');
+  assert.sameValue(result, other, 'The value of `result` is expected to equal the value of other');
+  assert.sameValue(counter, 1, 'The value of `counter` is 1');
+
+  sample = new TA(4);
+  sample.constructor = ctor;
+  result = sample.slice(1, 1); // count = 0;
+  assert.sameValue(result.length, 0, 'The value of result.length is 0');
+  assert.notSameValue(
+    result.buffer,
+    sample.buffer,
+    'The value of result.buffer is expected to not equal the value of `sample.buffer`'
+  );
+  assert.sameValue(result.constructor, TA, 'The value of result.constructor is expected to equal the value of TA');
+  assert.sameValue(counter, 2, 'The value of `counter` is 2');
+});
+
+reportCompare(0, 0);