1 files changed, 144 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/non-extensible-elements6.js b/js/src/jit-test/tests/basic/non-extensible-elements6.js
new file mode 100644
index 0000000000..9e865be910
--- /dev/null
+++ b/js/src/jit-test/tests/basic/non-extensible-elements6.js
@@ -0,0 +1,144 @@
+load(libdir + "asserts.js");
+
+function testNonExtensible() {
+    var a = [1, 2, 3, , 5];
+    Object.preventExtensions(a);
+
+    // Can change the value.
+    Object.defineProperty(a, 1, {value:7, enumerable: true, configurable: true, writable: true});
+    assertEq(JSON.stringify(Object.getOwnPropertyDescriptor(a, 1)),
+            `{"value":7,"writable":true,"enumerable":true,"configurable":true}`);
+
+    // Can make non-writable, non-configurable, non-enumerable.
+    Object.defineProperty(a, 1, {value:9, enumerable: true, configurable: true, writable: false});
+    assertEq(JSON.stringify(Object.getOwnPropertyDescriptor(a, 1)),
+            `{"value":9,"writable":false,"enumerable":true,"configurable":true}`);
+    Object.defineProperty(a, 0, {value:4, enumerable: true, configurable: false, writable: true});
+    assertEq(JSON.stringify(Object.getOwnPropertyDescriptor(a, 0)),
+             `{"value":4,"writable":true,"enumerable":true,"configurable":false}`);
+    Object.defineProperty(a, 2, {value:3, enumerable: false, configurable: true, writable: true});
+    assertEq(JSON.stringify(Object.getOwnPropertyDescriptor(a, 2)),
+             `{"value":3,"writable":true,"enumerable":false,"configurable":true}`);
+
+    // Turn into an accessor.
+    Object.defineProperty(a, 4, {get:() => -2, enumerable: true, configurable: true});
+
+    // Can't add new properties.
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 3,
+                                                       {value:4, enumerable: true,
+                                                        configurable: true,
+                                                        writable: true}),
+                           TypeError);
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 10,
+                                                       {value:4,
+                                                        enumerable: true,
+                                                        configurable: true,
+                                                        writable: true}),
+                           TypeError);
+
+    assertEq(a.toString(), "4,9,3,,-2");
+}
+for (var i = 0; i < 15; i++)
+    testNonExtensible();
+
+function testSealed() {
+    var a = [1, 2, 3, , 5];
+    Object.seal(a);
+
+    // Can change the value.
+    Object.defineProperty(a, 1, {value:7, enumerable: true, configurable: false, writable: true});
+    assertEq(JSON.stringify(Object.getOwnPropertyDescriptor(a, 1)),
+             `{"value":7,"writable":true,"enumerable":true,"configurable":false}`);
+
+    // Can make non-writable.
+    Object.defineProperty(a, 0, {value:4, enumerable: true, configurable: false, writable: false});
+
+    // Can't make configurable, non-enumerable.
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 2,
+                                                       {value:7,
+                                                        enumerable: true,
+                                                        configurable: true,
+                                                        writable: true}),
+                           TypeError);
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 2,
+                                                       {value:7,
+                                                        enumerable: false,
+                                                        configurable: false,
+                                                        writable: true}),
+                           TypeError);
+
+    // Can't turn into an accessor.
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 4, {get:() => -2,
+                                                              enumerable: true,
+                                                              configurable: true}),
+                           TypeError);
+
+    // Can't add new properties.
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 3,
+                                                       {value:4, enumerable: true,
+                                                        configurable: true,
+                                                        writable: true}),
+                           TypeError);
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 10,
+                                                       {value:4,
+                                                        enumerable: true,
+                                                        configurable: true,
+                                                        writable: true}),
+                           TypeError);
+
+    assertEq(a.toString(), "4,7,3,,5");
+}
+for (var i = 0; i < 15; i++)
+    testSealed();
+
+function testFrozen() {
+    var a = [1, 2, 3, , 5];
+    Object.freeze(a);
+
+    // Can redefine with same value/attributes.
+    Object.defineProperty(a, 0, {value:1, enumerable: true, configurable: false, writable: false});
+
+    // Can't change the value.
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 1,
+                                                       {value:7,
+                                                        enumerable: true,
+                                                        configurable: false,
+                                                        writable: false}),
+                           TypeError);
+
+    // Can't make configurable, non-enumerable.
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 2,
+                                                       {value:3,
+                                                        enumerable: true,
+                                                        configurable: true,
+                                                        writable: false}),
+                           TypeError);
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 2,
+                                                       {value:3,
+                                                        enumerable: false,
+                                                        configurable: false,
+                                                        writable: false}),
+                           TypeError);
+    // Can't turn into an accessor.
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 4, {get:() => -2,
+                                                              enumerable: true,
+                                                              configurable: true}),
+                           TypeError);
+
+    // Can't add new properties.
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 3,
+                                                       {value:4, enumerable: true,
+                                                        configurable: true,
+                                                        writable: true}),
+                           TypeError);
+    assertThrowsInstanceOf(() => Object.defineProperty(a, 10,
+                                                       {value:4,
+                                                        enumerable: true,
+                                                        configurable: true,
+                                                        writable: true}),
+                           TypeError);
+
+    assertEq(a.toString(), "1,2,3,,5");
+}
+for (var i = 0; i < 15; i++)
+    testFrozen();