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+// |reftest| shell-option(--enable-arraybuffer-resizable) skip-if(!ArrayBuffer.prototype.resize||!xulRuntime.shell) -- resizable-arraybuffer is not enabled unconditionally, requires shell-options
+// Copyright (C) 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-arraybuffer.prototype.resize
+description: >
+ Behavior when attempting to reset the size of a resizable array buffer to zero explicitly
+info: |
+ ArrayBuffer.prototype.resize ( newLength )
+
+ 1. Let O be the this value.
+ 2. Perform ? RequireInternalSlot(O, [[ArrayBufferMaxByteLength]]).
+ 3. If IsSharedArrayBuffer(O) is true, throw a TypeError exception.
+ 4. If IsDetachedBuffer(O) is true, throw a TypeError exception.
+ 5. Let newByteLength be ? ToIntegerOrInfinity(newLength).
+ 6. If newByteLength < 0 or newByteLength > O.[[ArrayBufferMaxByteLength]],
+ throw a RangeError exception.
+ 7. Let hostHandled be ? HostResizeArrayBuffer(O, newByteLength).
+ [...]
+
+ HostResizeArrayBuffer ( buffer, newByteLength )
+
+ The implementation of HostResizeArrayBuffer must conform to the following
+ requirements:
+
+ - The abstract operation does not detach buffer.
+ - The abstract operation may complete normally or abruptly.
+ - If the abstract operation completes normally with handled,
+ buffer.[[ArrayBufferByteLength]] is newByteLength.
+ - The return value is either handled or unhandled.
+features: [resizable-arraybuffer]
+---*/
+
+var ab = new ArrayBuffer(0, {maxByteLength: 0});
+var caught = false;
+var result;
+
+// If the host chooses to throw as allowed by the specification, the observed
+// behavior will be identical to the case where `ArrayBuffer.prototype.resize`
+// has not been implemented. The following assertion prevents this test from
+// passing in runtimes which have not implemented the method.
+assert.sameValue(typeof ab.resize, 'function');
+
+try {
+ result = ab.resize(0);
+} catch (_) {
+ caught = true;
+}
+
+try {
+ ab.slice();
+} catch (_) {
+ throw new Test262Error('The ArrayBuffer under test was detached');
+}
+
+// One of the following three conditions must be met:
+//
+// - HostResizeArrayBuffer returns an abrupt completion
+// - HostResizeArrayBuffer handles the resize operation and conforms to the
+// invarient regarding [[ArrayBufferByteLength]]
+// - HostResizeArrayBuffer does not handle the resize operation, and the
+// `resize` method updates [[ArrayBufferByteLength]]
+//
+// The final two conditions are indistinguishable.
+assert(caught || ab.byteLength === 0, 'byteLength');
+
+// One of the following three conditions must be met:
+//
+// - HostResizeArrayBuffer returns an abrupt completion
+// - HostResizeArrayBuffer handles the resize operation, and the `resize`
+// method returns early
+// - HostResizeArrayBuffer does not handle the resize operation, and the
+// `resize` method executes its final steps
+//
+// All three conditions have the same effect on the value of `result`.
+assert.sameValue(result, undefined, 'normal completion value');
+
+// The contents of the ArrayBuffer are not guaranteed by the host-defined
+// abstract operation, so they are not asserted in this test.
+
+reportCompare(0, 0);