1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/ArrayBuffer/prototype/transferToFixedLength/from-fixed-to-smaller.js b/js/src/tests/test262/built-ins/ArrayBuffer/prototype/transferToFixedLength/from-fixed-to-smaller.js
new file mode 100644
index 0000000000..b04213166a
--- /dev/null
+++ b/js/src/tests/test262/built-ins/ArrayBuffer/prototype/transferToFixedLength/from-fixed-to-smaller.js
@@ -0,0 +1,35 @@
+// |reftest| shell-option(--enable-arraybuffer-resizable) skip-if(!ArrayBuffer.prototype.resize||!xulRuntime.shell) -- resizable-arraybuffer is not enabled unconditionally, requires shell-options
+// Copyright (C) 2023 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-arraybuffer.prototype.transfertofixedlength
+description: Transfering from a fixed-size ArrayBuffer into a smaller ArrayBuffer
+features: [resizable-arraybuffer, arraybuffer-transfer]
+---*/
+
+var source = new ArrayBuffer(4);
+
+var sourceArray = new Uint8Array(source);
+sourceArray[0] = 1;
+sourceArray[1] = 2;
+sourceArray[2] = 3;
+sourceArray[3] = 4;
+
+var dest = source.transferToFixedLength(3);
+
+assert.sameValue(source.byteLength, 0, 'source.byteLength');
+assert.throws(TypeError, function() {
+  source.slice();
+});
+
+assert.sameValue(dest.resizable, false, 'dest.resizable');
+assert.sameValue(dest.byteLength, 3, 'dest.byteLength');
+assert.sameValue(dest.maxByteLength, 3, 'dest.maxByteLength');
+
+var destArray = new Uint8Array(dest);
+
+assert.sameValue(destArray[0], 1, 'destArray[0]');
+assert.sameValue(destArray[1], 2, 'destArray[1]');
+assert.sameValue(destArray[2], 3, 'destArray[2]');
+
+reportCompare(0, 0);