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-rw-r--r--js/src/jit-test/tests/debug/Object-isSameNative.js49
1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Object-isSameNative.js b/js/src/jit-test/tests/debug/Object-isSameNative.js
new file mode 100644
index 0000000000..0b26144f21
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Object-isSameNative.js
@@ -0,0 +1,49 @@
+// Test that the onNativeCall hook is called when expected.
+
+load(libdir + 'eqArrayHelper.js');
+
+var g = newGlobal({newCompartment: true});
+var dbg = Debugger(g);
+var gdbg = dbg.addDebuggee(g);
+
+assertEq(gdbg.getProperty("print").return.isSameNative(print), true);
+assertEq(gdbg.getProperty("print").return.isSameNative(newGlobal), false);
+
+g.eval(`
+const x = [];
+Object.defineProperty(x, "a", {
+ get: print,
+ set: print,
+});
+function f() {
+ x.a++;
+ x.length = 0;
+ x.push(4, 5, 6);
+ x.sort(print);
+}
+`);
+
+const comparisons = [
+ print,
+ Array.prototype.push,
+ Array.prototype.sort, // Note: self-hosted
+ newGlobal
+];
+
+const rv = [];
+dbg.onNativeCall = (callee, reason) => {
+ for (const fn of comparisons) {
+ if (callee.isSameNative(fn)) {
+ rv.push(fn.name);
+ }
+ }
+}
+
+for (let i = 0; i < 5; i++) {
+ rv.length = 0;
+ gdbg.executeInGlobal(`f()`);
+ assertEqArray(rv, [
+ "print", "print", "push",
+ "sort", "print", "print",
+ ]);
+}