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-rw-r--r--js/src/tests/ecma_6/extensions/DataView-set-arguments-detaching.js85
1 files changed, 85 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/extensions/DataView-set-arguments-detaching.js b/js/src/tests/ecma_6/extensions/DataView-set-arguments-detaching.js
new file mode 100644
index 000000000..b05ec480d
--- /dev/null
+++ b/js/src/tests/ecma_6/extensions/DataView-set-arguments-detaching.js
@@ -0,0 +1,85 @@
+// |reftest| skip-if(!xulRuntime.shell) -- needs detachArrayBuffer()
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var gTestfile = "DataView-set-arguments-detaching.js";
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 991981;
+var summary =
+ "DataView.prototype.set* methods shouldn't misbehave horribly if " +
+ "index-argument conversion detaches the ArrayBuffer being modified";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+function testIndex()
+{
+ var ab = new ArrayBuffer(0x1000);
+
+ var dv = new DataView(ab);
+
+ var start =
+ {
+ valueOf: function()
+ {
+ detachArrayBuffer(ab);
+ gc();
+ return 0xFFF;
+ }
+ };
+
+ var ok = false;
+ try
+ {
+ dv.setUint8(start, 0x42);
+ }
+ catch (e)
+ {
+ ok = true;
+ }
+ assertEq(ok, true, "should have thrown");
+ assertEq(ab.byteLength, 0, "should have been detached correctly");
+}
+testIndex();
+
+function testValue()
+{
+ var ab = new ArrayBuffer(0x100000);
+
+ var dv = new DataView(ab);
+
+ var value =
+ {
+ valueOf: function()
+ {
+ detachArrayBuffer(ab);
+ gc();
+ return 0x42;
+ }
+ };
+
+ var ok = false;
+ try
+ {
+ dv.setUint8(0xFFFFF, value);
+ }
+ catch (e)
+ {
+ ok = true;
+ }
+ assertEq(ok, true, "should have thrown");
+ assertEq(ab.byteLength, 0, "should have been detached correctly");
+}
+testValue();
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);
+
+print("Tests complete");