1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Object-makeDebuggeeNativeFunction-01.js b/js/src/jit-test/tests/debug/Object-makeDebuggeeNativeFunction-01.js
new file mode 100644
index 0000000000..996ad7cffc
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Object-makeDebuggeeNativeFunction-01.js
@@ -0,0 +1,28 @@
+// Debugger.Object.prototype.makeDebuggeeNativeFunction does what it is
+// supposed to do.
+
+load(libdir + "asserts.js");
+
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger();
+var gw = dbg.addDebuggee(g);
+
+// It would be nice if we could test that this call doesn't produce a CCW,
+// and that calling makeDebuggeeValue instead does, but
+// Debugger.Object.isProxy only returns true for scripted proxies.
+const push = gw.makeDebuggeeNativeFunction(Array.prototype.push);
+
+gw.setProperty("push", push);
+g.eval("var x = []; push.call(x, 2); x.push(3)");
+assertEq(g.x[0], 2);
+assertEq(g.x[1], 3);
+
+// Interpreted functions should throw.
+assertThrowsInstanceOf(() => {
+  gw.makeDebuggeeNativeFunction(() => {});
+}, Error);
+
+// Native functions which have extended slots should throw.
+let f;
+new Promise(resolve => { f = resolve; })
+assertThrowsInstanceOf(() => gw.makeDebuggeeNativeFunction(f), Error);