1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arguments/defaults-strict-mode.js b/js/src/jit-test/tests/arguments/defaults-strict-mode.js
new file mode 100644
index 0000000000..c4ba7bd63d
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/defaults-strict-mode.js
@@ -0,0 +1,41 @@
+load(libdir + "asserts.js");
+
+eval(`"use strict";
+function f1(f=(function () { return typeof this !== "object"; })) { return f; }
+assertEq(f1()(), true);
+`);
+
+function f2(f=(function () { "use strict"; return (function () { return typeof this !== "object"; }) })) { assertEq(typeof this, "object"); return f; }
+assertEq(f2()()(), true);
+
+eval(`"use strict";
+function f3(f=(function () { return (function () { return typeof this !== "object"; }) })) { return f; }
+assertEq(f3()()(), true);
+`);
+
+// These should be okay.
+function f4(f=(function () { with (Object) {} }), g=(function () { "use strict"; })) {}
+function f5(g=(function () { "use strict"; }), f=(function () { with (Object) {} })) {}
+
+assertThrowsInstanceOf(function () {
+    eval("'use strict'; function f(a=delete x) { }");
+}, SyntaxError);
+assertThrowsInstanceOf(function () {
+    Math.sin(4);
+    eval("'use strict'; function f(a='\\251') { }");
+}, SyntaxError);
+assertThrowsInstanceOf(function () {
+    eval("'use strict'; function f(a='\\251', b=delete x) { }");
+}, SyntaxError);
+assertThrowsInstanceOf(function () {
+    eval("'use strict'; function f(a=delete x, b='\\251') { }");
+}, SyntaxError);
+assertThrowsInstanceOf(function () {
+    eval("'use strict'; function f(a=(function () { '\\251'; })) { }");
+}, SyntaxError);
+assertThrowsInstanceOf(function () {
+    eval("'use strict'; function f(a=(function () { with (Object) {} })) { }");
+}, SyntaxError);
+assertThrowsInstanceOf(function () {
+    eval("'use strict'; function f(a=(function (b, b) {})) { }");
+}, SyntaxError);