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-rw-r--r--js/src/jit-test/tests/ion/testArrayBufferByteLength.js20
1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/testArrayBufferByteLength.js b/js/src/jit-test/tests/ion/testArrayBufferByteLength.js
new file mode 100644
index 000000000..0eb75b5dd
--- /dev/null
+++ b/js/src/jit-test/tests/ion/testArrayBufferByteLength.js
@@ -0,0 +1,20 @@
+var ArrayBufferByteLength = getSelfHostedValue("ArrayBufferByteLength");
+
+setJitCompilerOption("ion.warmup.trigger", 50);
+
+function testBasic() {
+ var arr = [1, 2, 3];
+ var tarr = new Int32Array(arr);
+ var abuf = tarr.buffer;
+
+ var arrLength = arr.length;
+ var bytesPerElement = Int32Array.BYTES_PER_ELEMENT;
+
+ var f = function() {
+ assertEq(ArrayBufferByteLength(abuf), arrLength * bytesPerElement);
+ };
+ do {
+ f();
+ } while (!inIon());
+}
+testBasic();