Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/arguments/rest-basic.js b/js/src/jit-test/tests/arguments/rest-basic.js
new file mode 100644
index 0000000000..cb050d13b3
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/rest-basic.js
@@ -0,0 +1,15 @@
+function check(expected, ...rest) {
+    assertEq(expected.toString(), rest.toString());
+}
+
+assertEq(check.length, 1);
+check([]);
+check(['a', 'b'], 'a', 'b');
+check(['a', 'b', 'c', 'd'], 'a', 'b', 'c', 'd');
+check.apply(null, [['a', 'b'], 'a', 'b'])
+check.call(null, ['a', 'b'], 'a', 'b')
+
+var g = newGlobal();
+g.eval("function f(...rest) { return rest; }");
+var a = g.f(1, 2, 3);
+assertEq(a instanceof g.Array, true);
\ No newline at end of file