JSTests/test262/test/language/expressions/prefix-decrement/S11.4.5_A2.2_T1.js

// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: Operator --x uses [[Default Value]]
es5id: 11.4.5_A2.2_T1
description: If Type(value) is Object, evaluate ToPrimitive(value, Number)
---*/

//CHECK#1
var object = {valueOf: function() {return 1}};
if (--object !== 1 - 1) {
  $ERROR('#1: var object = {valueOf: function() {return 1}}; --object === 1 - 1. Actual: ' + (--object));
} else {
  if (object !== 1 - 1) {
    $ERROR('#1: var object = {valueOf: function() {return 1}}; --object; object === 1 - 1. Actual: ' + (object));
  }
}

//CHECK#2
var object = {valueOf: function() {return 1}, toString: function() {return 0}};
if (--object !== 1 - 1) {
  $ERROR('#2: var object = {valueOf: function() {return 1}, toString: function() {return 0}}; --object === 1 - 1. Actual: ' + (--object));
} else {
  if (object !== 1 - 1) {
    $ERROR('#2: var object = {valueOf: function() {return 1}, toString: function() {return 0}}; --object; object === 1 - 1. Actual: ' + (object));
  }
}

//CHECK#3
var object = {valueOf: function() {return 1}, toString: function() {return {}}};
if (--object !== 1 - 1) {
  $ERROR('#3: var object = {valueOf: function() {return 1}, toString: function() {return {}}}; --object === 1 - 1. Actual: ' + (--object));
} else {
  if (object !== 1 - 1) {
    $ERROR('#3: var object = {valueOf: function() {return 1}, toString: function() {return {}}}; --object; object === 1 - 1. Actual: ' + (object));
  }
}

//CHECK#4
try {
  var object = {valueOf: function() {return 1}, toString: function() {throw "error"}};
  if (--object !== 1 - 1) {
    $ERROR('#4.1: var object = {valueOf: function() {return 1}, toString: function() {throw "error"}}; --object === 1 - 1. Actual: ' + (--object));
  } else {
    if (object !== 1 - 1) {
      $ERROR('#4.1: var object = {valueOf: function() {return 1}, toString: function() {throw "error"}}; --object; object === 1 - 1. Actual: ' + (object));
    }
  }
}
catch (e) {
  if (e === "error") {
    $ERROR('#4.2: var object = {valueOf: function() {return 1}, toString: function() {throw "error"}}; --object not throw "error"');
  } else {
    $ERROR('#4.3: var object = {valueOf: function() {return 1}, toString: function() {throw "error"}}; --object not throw Error. Actual: ' + (e));
  }
}

//CHECK#5
var object = {toString: function() {return 1}};
if (--object !== 1 - 1) {
  $ERROR('#5.1: var object = {toString: function() {return 1}}; --object === 1 - 1. Actual: ' + (--object));
} else {
  if (object !== 1 - 1) {
    $ERROR('#5.2: var object = {toString: function() {return 1}}; --object; object === 1 - 1. Actual: ' + (object));
  }
}


//CHECK#6
var object = {valueOf: function() {return {}}, toString: function() {return 1}}
if (--object !== 1 - 1) {
  $ERROR('#6.1: var object = {valueOf: function() {return {}}, toString: function() {return 1}}; --object === 1 - 1. Actual: ' + (--object));
} else {
  if (object !== 1 - 1) {
    $ERROR('#6.2: var object = {valueOf: function() {return {}}, toString: function() {return 1}}; --object; object === 1 - 1. Actual: ' + (object));
  }
}

//CHECK#7
try {
  var object = {valueOf: function() {throw "error"}, toString: function() {return 1}};
  --object;
  $ERROR('#7.1: var object = {valueOf: function() {throw "error"}, toString: function() {return 1}}; --object throw "error". Actual: ' + (--object));
}  
catch (e) {
  if (e !== "error") {
    $ERROR('#7.2: var object = {valueOf: function() {throw "error"}, toString: function() {return 1}}; --object throw "error". Actual: ' + (e));
  } 
}

//CHECK#8
try {
  var object = {valueOf: function() {return {}}, toString: function() {return {}}};
  --object;
  $ERROR('#8.1: var object = {valueOf: function() {return {}}, toString: function() {return {}}}; --object throw TypeError. Actual: ' + (--object));
}  
catch (e) {
  if ((e instanceof TypeError) !== true) {
    $ERROR('#8.2: var object = {valueOf: function() {return {}}, toString: function() {return {}}}; --object throw TypeError. Actual: ' + (e));
  } 
}