1 files changed, 68 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/unshift/S15.4.4.13_A4_T2.js b/js/src/tests/test262/built-ins/Array/prototype/unshift/S15.4.4.13_A4_T2.js
new file mode 100644
index 0000000000..bc63e8cf66
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/unshift/S15.4.4.13_A4_T2.js
@@ -0,0 +1,68 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: "[[Get]], [[Delete]] from not an inherited property"
+esid: sec-array.prototype.unshift
+description: >
+    [[Prototype]] of Array instance is Array.prototype, [[Prototype]
+    of Array.prototype is Object.prototype
+---*/
+
+Array.prototype[0] = 1;
+var x = [];
+x.length = 1;
+
+var unshift = x.unshift(0);
+if (unshift !== 2) {
+  throw new Test262Error('#1: Array.prototype[0] = 1; x = []; x.length = 1; x.unshift(0) === 2. Actual: ' + (unshift));
+}
+
+if (x[0] !== 0) {
+  throw new Test262Error('#2: Array.prototype[0] = 1; x = []; x.length = 1; x.unshift(0); x[0] === 0. Actual: ' + (x[0]));
+}
+
+if (x[1] !== 1) {
+  throw new Test262Error('#3: Array.prototype[0] = 1; x = []; x.length = 1; x.unshift(0); x[1] === 1. Actual: ' + (x[1]));
+}
+
+delete x[0];
+
+if (x[0] !== 1) {
+  throw new Test262Error('#4: Array.prototype[0] = 1; x = [1]; x.length = 1; x.unshift(0); delete x[0]; x[0] === 1. Actual: ' + (x[0]));
+}
+
+Object.prototype[0] = 1;
+Object.prototype.length = 1;
+Object.prototype.unshift = Array.prototype.unshift;
+x = {};
+
+var unshift = x.unshift(0);
+if (unshift !== 2) {
+  throw new Test262Error('#5: Object.prototype[0] = 1; Object.prototype.length = 1; Object.prototype.unshift = Array.prototype.unshift; x = {}; x.unshift(0) === 2. Actual: ' + (unshift));
+}
+
+if (x[0] !== 0) {
+  throw new Test262Error('#6: Object.prototype[0] = 1; Object.prototype.length = 1; Object.prototype.unshift = Array.prototype.unshift; x = {}; x.unshift(0); x[0] === 0. Actual: ' + (x[0]));
+}
+
+if (x[1] !== 1) {
+  throw new Test262Error('#7: Object.prototype[0] = 1; Object.prototype.length = 1; Object.prototype.unshift = Array.prototype.unshift; x = {}; x.unshift(0); x[1] === 1. Actual: ' + (x[1]));
+}
+
+delete x[0];
+
+if (x[0] !== 1) {
+  throw new Test262Error('#8: Object.prototype[0] = 1; Object.prototype.length = 1; Object.prototype.unshift = Array.prototype.unshift; x = {}; x.unshift(0); delete x[0]; x[0] === 1. Actual: ' + (x[0]));
+}
+
+if (x.length !== 2) {
+  throw new Test262Error('#9: Object.prototype[0] = 1; Object.prototype.length = 1; Object.prototype.unshift = Array.prototype.unshift; x = {}; x.unshift(0); x.length === 1. Actual: ' + (x.length));
+}
+
+delete x.length;
+if (x.length !== 1) {
+  throw new Test262Error('#10: Object.prototype[1] = 1; Object.prototype.length = 1; Object.prototype.unshift = Array.prototype.unshift; x = {}; x.unshift(0); delete x; x.length === 1. Actual: ' + (x.length));
+}
+
+reportCompare(0, 0);