From a4443793b9c26ac8c11294682dd8d6c52634f2f7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Bargull?= <andre.bargull@gmail.com>
Date: Tue, 27 Aug 2024 11:00:08 +0200
Subject: [PATCH] Add coverage when array buffer is resized in
 SetTypedArrayFromArrayLike

---
 ...g-value-conversion-resizes-array-buffer.js | 66 +++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 test/built-ins/TypedArray/prototype/set/array-arg-value-conversion-resizes-array-buffer.js

diff --git a/test/built-ins/TypedArray/prototype/set/array-arg-value-conversion-resizes-array-buffer.js b/test/built-ins/TypedArray/prototype/set/array-arg-value-conversion-resizes-array-buffer.js
new file mode 100644
index 0000000000..d61c28813b
--- /dev/null
+++ b/test/built-ins/TypedArray/prototype/set/array-arg-value-conversion-resizes-array-buffer.js
@@ -0,0 +1,66 @@
+// Copyright (C) 2024 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-settypedarrayfromarraylike
+description: >
+  Value conversion shrinks and then grows the array buffer.
+info: |
+  23.2.3.26.2 SetTypedArrayFromArrayLike ( target, targetOffset, source )
+    ...
+    9. Repeat, while k < srcLength,
+      a. Let Pk be ! ToString(𝔽(k)).
+      b. Let value be ? Get(src, Pk).
+      c. Let targetIndex be 𝔽(targetOffset + k).
+      d. Perform ? TypedArraySetElement(target, targetIndex, value).
+      e. Set k to k + 1.
+
+features: [resizable-arraybuffer]
+includes: [compareArray.js]
+---*/
+
+var rab = new ArrayBuffer(5, {maxByteLength: 10});
+var typedArray = new Int8Array(rab);
+
+var log = [];
+
+var growNumber = 0
+
+var grow = {
+  valueOf() {
+    log.push("grow");
+    rab.resize(rab.byteLength + 1);
+    return --growNumber;
+  }
+};
+
+var shrinkNumber = 0
+
+var shrink = {
+  valueOf() {
+    log.push("shrink");
+    rab.resize(rab.byteLength - 1);
+    return ++shrinkNumber;
+  }
+};
+
+var array = {
+  get length() {
+    return 5;
+  },
+  0: shrink,
+  1: shrink,
+  2: shrink,
+  3: grow,
+  4: grow,
+}
+
+typedArray.set(array);
+
+assert.compareArray(log, [
+  "shrink", "shrink", "shrink", "grow", "grow",
+]);
+
+assert.compareArray(typedArray, [
+  1, 2, 0, 0
+]);