element-setting-converts-using-ToNumber.js

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// |reftest| slow

/*

 * Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/licenses/publicdomain/

*/

var gTestfile = 'element-setting-converts-using-ToNumber.js';

//-----------------------------------------------------------------------------

var BUGNUMBER = 985733;

var summary =

  "Typed array element-setting should convert to target type using ToNumber "

  "followed by an element-type-specific truncation function";

print(BUGNUMBER + ": " + summary);

/**************

 * BEGIN TEST *

 **************/

anyTypedArrayConstructors.forEach(function(TypedArray) {

  var ta = new TypedArray(1);

  assertEq(ta[0], 0);

  var count = 0;

  function setToObject()

    for (var i = 0; i < 1e4; i++)

      assertEq(count, i);

      ta[0] = { valueOf: function() { count++; return 17; } };

  setToObject();

  assertEq(count, 1e4);

  assertEq(ta[0], 17);

  function setToString()

    for (var i = 0; i < 2e4; i++)

      ta[0] = "17.0000000000000000000000000000000000000000000000000000001";

  setToString();

  assertEq(ta[0], 17);

  count = 0;

  var arrayConstructed =

    new TypedArray([{ valueOf: function() { count++; return 17; } },

                   "17.0000000000000000000000000000000000000000000000000001"]);

  assertEq(count, 1);

  assertEq(arrayConstructed[0], 17);

  assertEq(arrayConstructed[1], 17);

  count = 0;

  var arraySet = new TypedArray(5);

  arraySet.set({ 0: 17,

                 1: "17.000000000000000000000000000000000000000000000000000",

                 get 2() {

                   return { valueOf: undefined,

                            toString: function() { count++; return 42; } };

},

                 get 3() { return true; },

                 set 3(v) { throw "FAIL"; },

                 4: { valueOf: function() { count++; return 127; } },

                 length: 5 });

  assertEq(count, 2);

  assertEq(arraySet[0], 17);

  assertEq(arraySet[1], 17);

  assertEq(arraySet[2], 42);

  assertEq(arraySet[3], 1);

  assertEq(arraySet[4], 127);

  var bigLen = 1e4;

  var big = new TypedArray(bigLen);

  function initBig()

    for (var i = 0; i < bigLen; i++)

      big[i] = (i % 2) ? 3 : { valueOf: function() { return 3; } };

  initBig();

  for (var i = 0; i < bigLen; i++)

    assertEq(big[i], 3,

             "(" + Object.prototype.toString.call(big) + ")");

});

/******************************************************************************/

reportCompare(true, true);

print("Tests complete");