// Copyright JS Foundation and other contributors, http://js.foundation // // 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. // This test will not pass on FLOAT32 due to precision issues var obj = {}; var array = ["foo", 19, "bar", obj, "foo", 29, "baz"]; var index = array.lastIndexOf("foo"); assert(index === 4); assert(array[index] === "foo"); assert(array.lastIndexOf("foo", 3) === 0); assert(array.lastIndexOf("foo", -8) === -1); var index = array.lastIndexOf("baz"); assert(index === 6); assert(array[index] === "baz"); assert(array.lastIndexOf("baz", -2) === -1); var index = array.lastIndexOf(obj); assert(index === 3); assert(array[index] === obj); assert(array.lastIndexOf("foo", NaN) === 0); assert(array.lastIndexOf("foo", Infinity) === 4); assert(array.lastIndexOf("foo", -Infinity) === -1); var arr = []; arr[4294967294] = "foo"; assert(arr.lastIndexOf("foo", -1) === 4294967294) var arr = [1,2]; assert(arr.lastIndexOf(2, undefined) === -1); assert(arr.lastIndexOf(2) === 1); // Checking behavior when unable to get length var obj = { lastIndexOf : Array.prototype.lastIndexOf} Object.defineProperty(obj, 'length', { 'get' : function () { throw new ReferenceError ("foo"); } }); try { obj.lastIndexOf("bar"); assert(false); } catch (e) { assert(e.message === "foo"); assert(e instanceof ReferenceError); } // Checking behavior when unable to get element var obj = { lastIndexOf : Array.prototype.lastIndexOf, length : 1} Object.defineProperty(obj, '0', { 'get' : function () { throw new ReferenceError ("foo"); } }); try { obj.lastIndexOf("bar"); assert(false); } catch (e) { assert(e.message === "foo"); assert(e instanceof ReferenceError); } // Remove the buffer var array = [1, 2, 3, 4, 5]; var value = array.lastIndexOf(4, { valueOf: function() { array.length = 0; } }) assert(value === -1); // Extend the buffer var array = [1, 2, 3]; var value = array.lastIndexOf(1, { valueOf: function() { array.length = 5; } }) assert(value === 0); // Reduce the buffer var array = [1, 2, 3, 4, 5, 6, 7]; var value = array.indexOf(5, { valueOf: function() { array.length = 2; } }) assert(value === -1);