1 files changed, 153 insertions, 0 deletions
diff --git a/js/src/tests/test262/staging/ArrayBuffer/resizable/find-grow-mid-iteration-strict.js b/js/src/tests/test262/staging/ArrayBuffer/resizable/find-grow-mid-iteration-strict.js
new file mode 100644
index 0000000000..ec36398067
--- /dev/null
+++ b/js/src/tests/test262/staging/ArrayBuffer/resizable/find-grow-mid-iteration-strict.js
@@ -0,0 +1,153 @@
+// |reftest| shell-option(--enable-arraybuffer-resizable) skip-if(!ArrayBuffer.prototype.resize||!xulRuntime.shell) -- resizable-arraybuffer is not enabled unconditionally, requires shell-options
+'use strict';
+// Copyright 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-arraybuffer-length
+description: >
+  Automatically ported from FindGrowMidIteration test
+  in V8's mjsunit test typedarray-resizablearraybuffer.js
+includes: [compareArray.js]
+features: [resizable-arraybuffer]
+flags: [onlyStrict]
+---*/
+
+class MyUint8Array extends Uint8Array {
+}
+
+class MyFloat32Array extends Float32Array {
+}
+
+class MyBigInt64Array extends BigInt64Array {
+}
+
+const builtinCtors = [
+  Uint8Array,
+  Int8Array,
+  Uint16Array,
+  Int16Array,
+  Uint32Array,
+  Int32Array,
+  Float32Array,
+  Float64Array,
+  Uint8ClampedArray,
+  BigUint64Array,
+  BigInt64Array
+];
+
+const ctors = [
+  ...builtinCtors,
+  MyUint8Array,
+  MyFloat32Array,
+  MyBigInt64Array
+];
+
+function CreateResizableArrayBuffer(byteLength, maxByteLength) {
+  return new ArrayBuffer(byteLength, { maxByteLength: maxByteLength });
+}
+
+function WriteToTypedArray(array, index, value) {
+  if (array instanceof BigInt64Array || array instanceof BigUint64Array) {
+    array[index] = BigInt(value);
+  } else {
+    array[index] = value;
+  }
+}
+
+function TypedArrayFindHelper(ta, p) {
+  return ta.find(p);
+}
+
+function ArrayFindHelper(ta, p) {
+  return Array.prototype.find.call(ta, p);
+}
+
+function FindGrowMidIteration(findHelper) {
+  // Orig. array: [0, 2, 4, 6]
+  //              [0, 2, 4, 6] << fixedLength
+  //                    [4, 6] << fixedLengthWithOffset
+  //              [0, 2, 4, 6, ...] << lengthTracking
+  //                    [4, 6, ...] << lengthTrackingWithOffset
+  function CreateRabForTest(ctor) {
+    const rab = CreateResizableArrayBuffer(4 * ctor.BYTES_PER_ELEMENT, 8 * ctor.BYTES_PER_ELEMENT);
+    // Write some data into the array.
+    const taWrite = new ctor(rab);
+    for (let i = 0; i < 4; ++i) {
+      WriteToTypedArray(taWrite, i, 2 * i);
+    }
+    return rab;
+  }
+  let values;
+  let rab;
+  let resizeAfter;
+  let resizeTo;
+  function CollectValuesAndResize(n) {
+    if (typeof n == 'bigint') {
+      values.push(Number(n));
+    } else {
+      values.push(n);
+    }
+    if (values.length == resizeAfter) {
+      rab.resize(resizeTo);
+    }
+    return false;
+  }
+  for (let ctor of ctors) {
+    rab = CreateRabForTest(ctor);
+    const fixedLength = new ctor(rab, 0, 4);
+    values = [];
+    resizeAfter = 2;
+    resizeTo = 5 * ctor.BYTES_PER_ELEMENT;
+    assert.sameValue(findHelper(fixedLength, CollectValuesAndResize), undefined);
+    assert.compareArray(values, [
+      0,
+      2,
+      4,
+      6
+    ]);
+  }
+  for (let ctor of ctors) {
+    rab = CreateRabForTest(ctor);
+    const fixedLengthWithOffset = new ctor(rab, 2 * ctor.BYTES_PER_ELEMENT, 2);
+    values = [];
+    resizeAfter = 1;
+    resizeTo = 5 * ctor.BYTES_PER_ELEMENT;
+    assert.sameValue(findHelper(fixedLengthWithOffset, CollectValuesAndResize), undefined);
+    assert.compareArray(values, [
+      4,
+      6
+    ]);
+  }
+  for (let ctor of ctors) {
+    rab = CreateRabForTest(ctor);
+    const lengthTracking = new ctor(rab, 0);
+    values = [];
+    resizeAfter = 2;
+    resizeTo = 5 * ctor.BYTES_PER_ELEMENT;
+    assert.sameValue(findHelper(lengthTracking, CollectValuesAndResize), undefined);
+    assert.compareArray(values, [
+      0,
+      2,
+      4,
+      6
+    ]);
+  }
+  for (let ctor of ctors) {
+    rab = CreateRabForTest(ctor);
+    const lengthTrackingWithOffset = new ctor(rab, 2 * ctor.BYTES_PER_ELEMENT);
+    values = [];
+    resizeAfter = 1;
+    resizeTo = 5 * ctor.BYTES_PER_ELEMENT;
+    assert.sameValue(findHelper(lengthTrackingWithOffset, CollectValuesAndResize), undefined);
+    assert.compareArray(values, [
+      4,
+      6
+    ]);
+  }
+}
+
+FindGrowMidIteration(TypedArrayFindHelper);
+FindGrowMidIteration(ArrayFindHelper);
+
+reportCompare(0, 0);