| // Copyright 2009 the Sputnik authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| info: | |
| The shift function is intentionally generic. |
| It does not require that its this value be an Array object |
| esid: sec-array.prototype.shift |
| description: > |
| Operator use ToNumber from length. If Type(value) is Object, |
| evaluate ToPrimitive(value, Number) |
| ---*/ |
| |
| var obj = {}; |
| obj.shift = Array.prototype.shift; |
| |
| //CHECK#1 |
| obj[0] = -1; |
| obj.length = { |
| valueOf: function() { |
| return 1 |
| } |
| }; |
| var shift = obj.shift(); |
| if (shift !== -1) { |
| $ERROR('#1: obj[0] = -1; obj.length = {valueOf: function() {return 1}} obj.shift() === -1. Actual: ' + (shift)); |
| } |
| |
| //CHECK#2 |
| obj[0] = -1; |
| obj.length = { |
| valueOf: function() { |
| return 1 |
| }, |
| toString: function() { |
| return 0 |
| } |
| }; |
| var shift = obj.shift(); |
| if (shift !== -1) { |
| $ERROR('#0: obj[0] = -1; obj.length = {valueOf: function() {return 1}, toString: function() {return 0}} obj.shift() === -1. Actual: ' + (shift)); |
| } |
| |
| //CHECK#3 |
| obj[0] = -1; |
| obj.length = { |
| valueOf: function() { |
| return 1 |
| }, |
| toString: function() { |
| return {} |
| } |
| }; |
| var shift = obj.shift(); |
| if (shift !== -1) { |
| $ERROR('#3: obj[0] = -1; obj.length = {valueOf: function() {return 1}, toString: function() {return {}}} obj.shift() === -1. Actual: ' + (shift)); |
| } |
| |
| //CHECK#4 |
| try { |
| obj[0] = -1; |
| obj.length = { |
| valueOf: function() { |
| return 1 |
| }, |
| toString: function() { |
| throw "error" |
| } |
| }; |
| var shift = obj.shift(); |
| if (shift !== -1) { |
| $ERROR('#4.1: obj[0] = -1; obj.length = {valueOf: function() {return 1}, toString: function() {throw "error"}}; obj.shift() === ",". Actual: ' + (shift)); |
| } |
| } |
| catch (e) { |
| if (e === "error") { |
| $ERROR('#4.2: obj[0] = -1; obj.length = {valueOf: function() {return 1}, toString: function() {throw "error"}}; obj.shift() not throw "error"'); |
| } else { |
| $ERROR('#4.3: obj[0] = -1; obj.length = {valueOf: function() {return 1}, toString: function() {throw "error"}}; obj.shift() not throw Error. Actual: ' + (e)); |
| } |
| } |
| |
| //CHECK#5 |
| obj[0] = -1; |
| obj.length = { |
| toString: function() { |
| return 0 |
| } |
| }; |
| var shift = obj.shift(); |
| if (shift !== undefined) { |
| $ERROR('#5: obj[0] = -1; obj.length = {toString: function() {return 0}} obj.shift() === undefined. Actual: ' + (shift)); |
| } |
| |
| //CHECK#6 |
| obj[0] = -1; |
| obj.length = { |
| valueOf: function() { |
| return {} |
| }, |
| toString: function() { |
| return 0 |
| } |
| } |
| var shift = obj.shift(); |
| if (shift !== undefined) { |
| $ERROR('#6: obj[0] = -1; obj.length = {valueOf: function() {return {}}, toString: function() {return 0}} obj.shift() === undefined. Actual: ' + (shift)); |
| } |
| |
| //CHECK#7 |
| try { |
| obj[0] = -1; |
| obj.length = { |
| valueOf: function() { |
| throw "error" |
| }, |
| toString: function() { |
| return 0 |
| } |
| }; |
| var shift = obj.shift(); |
| $ERROR('#7.1: obj[0] = -1; obj.length = {valueOf: function() {throw "error"}, toString: function() {return 0}}; obj.shift() throw "error". Actual: ' + (shift)); |
| } |
| catch (e) { |
| if (e !== "error") { |
| $ERROR('#7.2: obj[0] = -1; obj.length = {valueOf: function() {throw "error"}, toString: function() {return 0}}; obj.shift() throw "error". Actual: ' + (e)); |
| } |
| } |
| |
| //CHECK#8 |
| try { |
| obj[0] = -1; |
| obj.length = { |
| valueOf: function() { |
| return {} |
| }, |
| toString: function() { |
| return {} |
| } |
| }; |
| var shift = obj.shift(); |
| $ERROR('#8.1: obj[0] = -1; obj.length = {valueOf: function() {return {}}, toString: function() {return {}}} obj.shift() throw TypeError. Actual: ' + (shift)); |
| } |
| catch (e) { |
| if ((e instanceof TypeError) !== true) { |
| $ERROR('#8.2: obj[0] = -1; obj.length = {valueOf: function() {return {}}, toString: function() {return {}}} obj.shift() throw TypeError. Actual: ' + (e)); |
| } |
| } |