| // 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 |
| es5id: 15.4.4.13_A2_T3 |
| description: > |
| Operator use ToNumber from length. If Type(value) is Object, |
| evaluate ToPrimitive(value, Number) |
| ---*/ |
| |
| var obj = {}; |
| obj.unshift = Array.prototype.unshift; |
| |
| //CHECK#1 |
| obj.length = {valueOf: function() {return 3}}; |
| var unshift = obj.unshift(); |
| if (unshift !== 3) { |
| $ERROR('#1: obj.length = {valueOf: function() {return 3}} obj.unshift() === 3. Actual: ' + (unshift)); |
| } |
| |
| //CHECK#2 |
| obj.length = {valueOf: function() {return 3}, toString: function() {return 1}}; |
| var unshift = obj.unshift(); |
| if (unshift !== 3) { |
| $ERROR('#0: obj.length = {valueOf: function() {return 3}, toString: function() {return 1}} obj.unshift() === 3. Actual: ' + (unshift)); |
| } |
| |
| //CHECK#3 |
| obj.length = {valueOf: function() {return 3}, toString: function() {return {}}}; |
| var unshift = obj.unshift(); |
| if (unshift !== 3) { |
| $ERROR('#1: obj.length = {valueOf: function() {return 3}, toString: function() {return {}}} obj.unshift() === 3. Actual: ' + (unshift)); |
| } |
| |
| //CHECK#4 |
| try { |
| obj.length = {valueOf: function() {return 3}, toString: function() {throw "error"}}; |
| var unshift = obj.unshift(); |
| if (unshift !== 3) { |
| $ERROR('#4.1: obj.length = {valueOf: function() {return 3}, toString: function() {throw "error"}}; obj.unshift() === ",". Actual: ' + (unshift)); |
| } |
| } |
| catch (e) { |
| if (e === "error") { |
| $ERROR('#4.2: obj.length = {valueOf: function() {return 3}, toString: function() {throw "error"}}; obj.unshift() not throw "error"'); |
| } else { |
| $ERROR('#4.3: obj.length = {valueOf: function() {return 3}, toString: function() {throw "error"}}; obj.unshift() not throw Error. Actual: ' + (e)); |
| } |
| } |
| |
| //CHECK#5 |
| obj.length = {toString: function() {return 1}}; |
| var unshift = obj.unshift(); |
| if (unshift !== 1) { |
| $ERROR('#5: obj.length = {toString: function() {return 1}} obj.unshift() === 1. Actual: ' + (unshift)); |
| } |
| |
| //CHECK#6 |
| obj.length = {valueOf: function() {return {}}, toString: function() {return 1}} |
| var unshift = obj.unshift(); |
| if (unshift !== 1) { |
| $ERROR('#6: obj.length = {valueOf: function() {return {}}, toString: function() {return 1}} obj.unshift() === 1. Actual: ' + (unshift)); |
| } |
| |
| //CHECK#7 |
| try { |
| |
| obj.length = {valueOf: function() {throw "error"}, toString: function() {return 1}}; |
| var unshift = obj.unshift(); |
| $ERROR('#7.1: obj.length = {valueOf: function() {throw "error"}, toString: function() {return 1}}; obj.unshift() throw "error". Actual: ' + (unshift)); |
| } |
| catch (e) { |
| if (e !== "error") { |
| $ERROR('#7.2: obj.length = {valueOf: function() {throw "error"}, toString: function() {return 1}}; obj.unshift() throw "error". Actual: ' + (e)); |
| } |
| } |
| |
| //CHECK#8 |
| try { |
| |
| obj.length = {valueOf: function() {return {}}, toString: function() {return {}}}; |
| var unshift = obj.unshift(); |
| $ERROR('#8.1: obj.length = {valueOf: function() {return {}}, toString: function() {return {}}} obj.unshift() throw TypeError. Actual: ' + (unshift)); |
| } |
| catch (e) { |
| if ((e instanceof TypeError) !== true) { |
| $ERROR('#8.2: obj.length = {valueOf: function() {return {}}, toString: function() {return {}}} obj.unshift() throw TypeError. Actual: ' + (e)); |
| } |
| } |