Implemented Array.prototype.pop().

JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai.u-szeged@partner.samsung.com

tests/jerry/array_prototype_pop.js

@@ -0,0 +1,75 @@
+// Copyright 2015 Samsung Electronics Co., Ltd.
+// Copyright 2015 University of Szeged.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+var array = ["foo", [], Infinity, 4]
+assert(array.length === 4);
+
+assert(array.pop() === 4)
+assert(array.length === 3);
+
+assert(array.pop() === Infinity);
+assert(array.length === 2);
+
+var a = array.pop()
+assert(a instanceof Array);
+assert(array.length === 1);
+
+assert(array.pop() === "foo");
+assert(array.length === 0);
+
+assert(array.pop() === undefined);
+assert(array.length === 0);
+
+// Checking behavior when unable to get length
+var obj = { pop : Array.prototype.pop };
+Object.defineProperty(obj, 'length', { 'get' : function () {throw new ReferenceError ("foo"); } });
+
+try {
+	obj.pop();
+	assert(false);
+} catch (e) {
+	assert(e.message === "foo");
+	assert(e instanceof ReferenceError);
+}
+
+// Checking behavior when unable to set length
+var obj = { pop : Array.prototype.pop };
+Object.defineProperty(obj, 'length', { 'set' : function () {throw new ReferenceError ("foo"); } });
+
+try {
+	obj.pop();
+	assert(false);
+} catch (e) {
+	assert(e.message === "foo");
+	assert(e instanceof ReferenceError);
+}
+
+// Checking behavior when no length property defined
+var obj = { pop : Array.prototype.pop };
+assert(obj.length === undefined)
+assert(obj.pop() === undefined)
+assert(obj.length === 0)
+
+// Checking behavior when unable to get element
+var obj = { pop : Array.prototype.pop, length : 1 };
+Object.defineProperty(obj, '0', { 'get' : function () {throw new ReferenceError ("foo"); } });
+
+try {
+	obj.pop();
+	assert(false);
+} catch (e) {
+	assert(e.message === "foo");
+	assert(e instanceof ReferenceError);
+}