testAddInconvertibleObjectAny.js

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function testAddInconvertibleObjectAny()

  var count = 0;

  function toString()

    ++count;

    if (count == 95)

      return {};

    return "" + count;

  var o = {valueOf: undefined, toString: toString};

  var threw = false;

try

    for (var i = 0; i < 100; i++)

        var q = o + 5;

  catch (e)

    threw = true;

    if (i !== 94)

      return "expected i === 94, got " + i;

    if (q !== "945")

      return "expected q === '945', got " + q + " (type " + typeof q + ")";

    if (count !== 95)

      return "expected count === 95, got " + count;

  if (!threw)

    return "expected throw with o + 5";

  return "pass";

assertEq(testAddInconvertibleObjectAny(), "pass");