1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/non-extensible-elements1.js b/js/src/jit-test/tests/basic/non-extensible-elements1.js
new file mode 100644
index 0000000000..01831931a8
--- /dev/null
+++ b/js/src/jit-test/tests/basic/non-extensible-elements1.js
@@ -0,0 +1,50 @@
+function testTestIntegrityLevel(a, hasElems) {
+    assertEq(Object.isExtensible(a), true);
+    assertEq(Object.isSealed(a), false);
+    assertEq(Object.isFrozen(a), false);
+
+    Object.preventExtensions(a);
+    assertEq(Object.isExtensible(a), false);
+    assertEq(Object.isSealed(a), !hasElems);
+    assertEq(Object.isFrozen(a), false);
+
+    Object.seal(a);
+    assertEq(Object.isExtensible(a), false);
+    assertEq(Object.isSealed(a), true);
+    assertEq(Object.isFrozen(a), false);
+
+    Object.freeze(a);
+    assertEq(Object.isExtensible(a), false);
+    assertEq(Object.isSealed(a), true);
+    assertEq(Object.isFrozen(a), true);
+}
+testTestIntegrityLevel([1, 2, 3], true);
+testTestIntegrityLevel([1, , , 2], true);
+testTestIntegrityLevel([1, , , ], true);
+testTestIntegrityLevel([, , , ], false);
+testTestIntegrityLevel([], false);
+testTestIntegrityLevel({0: 0}, true);
+var a = [,,,,,,, 1];
+a.pop();
+testTestIntegrityLevel(a, false);
+
+function testDescriptor() {
+    var a = [1];
+    Object.preventExtensions(a);
+    assertEq(JSON.stringify(Object.getOwnPropertyDescriptors(a)),
+             `{"0":{"value":1,"writable":true,"enumerable":true,"configurable":true},` +
+             `"length":{"value":1,"writable":true,"enumerable":false,"configurable":false}}`);
+
+    a = [1];
+    Object.seal(a);
+    assertEq(JSON.stringify(Object.getOwnPropertyDescriptors(a)),
+             `{"0":{"value":1,"writable":true,"enumerable":true,"configurable":false},` +
+             `"length":{"value":1,"writable":true,"enumerable":false,"configurable":false}}`);
+
+    a = [1];
+    Object.freeze(a);
+    assertEq(JSON.stringify(Object.getOwnPropertyDescriptors(a)),
+             `{"0":{"value":1,"writable":false,"enumerable":true,"configurable":false},` +
+             `"length":{"value":1,"writable":false,"enumerable":false,"configurable":false}}`);
+}
+testDescriptor();