1 files changed, 120 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/unshift/S15.4.4.13_A2_T3.js b/js/src/tests/test262/built-ins/Array/prototype/unshift/S15.4.4.13_A2_T3.js
new file mode 100644
index 0000000000..8979724e9b
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/unshift/S15.4.4.13_A2_T3.js
@@ -0,0 +1,120 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    The unshift function is intentionally generic.
+    It does not require that its this value be an Array object
+esid: sec-array.prototype.unshift
+description: >
+    Operator use ToNumber from length.  If Type(value) is Object,
+    evaluate ToPrimitive(value, Number)
+---*/
+
+var obj = {};
+obj.unshift = Array.prototype.unshift;
+
+obj.length = {
+  valueOf() {
+    return 3
+  }
+};
+var unshift = obj.unshift();
+assert.sameValue(unshift, 3, 'The value of unshift is expected to be 3');
+
+obj.length = {
+  valueOf() {
+    return 3
+  },
+  toString() {
+    return 1
+  }
+};
+var unshift = obj.unshift();
+assert.sameValue(unshift, 3, 'The value of unshift is expected to be 3');
+
+obj.length = {
+  valueOf() {
+    return 3
+  },
+  toString() {
+    return {}
+  }
+};
+var unshift = obj.unshift();
+assert.sameValue(unshift, 3, 'The value of unshift is expected to be 3');
+
+try {
+  obj.length = {
+    valueOf() {
+      return 3
+    },
+    toString() {
+      throw "error"
+    }
+  };
+  var unshift = obj.unshift();
+  assert.sameValue(unshift, 3, 'The value of unshift is expected to be 3');
+}
+catch (e) {
+  assert.notSameValue(e, "error", 'The value of e is not "error"');
+}
+
+obj.length = {
+  toString() {
+    return 1
+  }
+};
+var unshift = obj.unshift();
+assert.sameValue(unshift, 1, 'The value of unshift is expected to be 1');
+
+obj.length = {
+  valueOf() {
+    return {}
+  },
+  toString() {
+    return 1
+  }
+}
+var unshift = obj.unshift();
+assert.sameValue(unshift, 1, 'The value of unshift is expected to be 1');
+
+try {
+
+  obj.length = {
+    valueOf() {
+      throw "error"
+    },
+    toString() {
+      return 1
+    }
+  };
+  var unshift = obj.unshift();
+  throw new Test262Error('#7.1:  obj.length = {valueOf() {throw "error"}, toString() {return 1}}; obj.unshift() throw "error". Actual: ' + (unshift));
+}
+catch (e) {
+  assert.sameValue(e, "error", 'The value of e is expected to be "error"');
+}
+
+try {
+
+  obj.length = {
+    valueOf() {
+      return {}
+    },
+    toString() {
+      return {}
+    }
+  };
+  var unshift = obj.unshift();
+  throw new Test262Error('#8.1:  obj.length = {valueOf() {return {}}, toString() {return {}}}  obj.unshift() throw TypeError. Actual: ' + (unshift));
+}
+catch (e) {
+  assert.sameValue(
+    e instanceof TypeError,
+    true,
+    'The result of evaluating (e instanceof TypeError) is expected to be true'
+  );
+}
+
+reportCompare(0, 0);