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/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
//-----------------------------------------------------------------------------
var BUGNUMBER = "(none)";
var summary = "Basic support for accessing iterable objects using Iterator";
var actual, expect;
printBugNumber(BUGNUMBER);
printStatus(summary);
/**************
* BEGIN TEST *
**************/
var failed = false;
function Array_equals(a, b)
{
if (!(a instanceof Array) || !(b instanceof Array))
throw new Error("Arguments not both of type Array");
if (a.length != b.length)
return false;
for (var i = 0, sz = a.length; i < sz; i++)
if (a[i] !== b[i])
return false;
return true;
}
var iterable = { persistedProp: 17 };
try
{
// nothing unusual so far -- verify basic properties
for (var i in iterable)
{
if (i != "persistedProp")
throw "no persistedProp!";
if (iterable[i] != 17)
throw "iterable[\"persistedProp\"] == 17";
}
var keys = ["foo", "bar", "baz"];
var vals = [6, 5, 14];
iterable.__iterator__ =
function(keysOnly)
{
var gen =
function()
{
for (var i = 0; i < keys.length; i++)
{
if (keysOnly)
yield keys[i];
else
yield [keys[i], vals[i]];
}
};
return gen();
};
/* Test [key, value] Iterator */
var index = 0;
var lastSeen = "INITIALVALUE";
var it = Iterator(iterable);
try
{
while (true)
{
var nextVal = it.next();
if (!Array_equals(nextVal, [keys[index], vals[index]]))
throw "Iterator(iterable): wrong next result\n" +
" expected: " + [keys[index], vals[index]] + "\n" +
" actual: " + nextVal;
lastSeen = keys[index];
index++;
}
}
catch (e)
{
if (lastSeen !== keys[keys.length - 1])
throw "Iterator(iterable): not everything was iterated!\n" +
" last iterated was: " + lastSeen + "\n" +
" error: " + e;
if (e !== StopIteration)
throw "Iterator(iterable): missing or invalid StopIteration";
}
if (iterable.persistedProp != 17)
throw "iterable.persistedProp not persisted!";
/* Test [key, value] Iterator, called with an explicit |false| parameter */
var index = 0;
lastSeen = "INITIALVALUE";
it = Iterator(iterable, false);
try
{
while (true)
{
var nextVal = it.next();
if (!Array_equals(nextVal, [keys[index], vals[index]]))
throw "Iterator(iterable, false): wrong next result\n" +
" expected: " + [keys[index], vals[index]] + "\n" +
" actual: " + nextVal;
lastSeen = keys[index];
index++;
}
}
catch (e)
{
if (lastSeen !== keys[keys.length - 1])
throw "Iterator(iterable, false): not everything was iterated!\n" +
" last iterated was: " + lastSeen + "\n" +
" error: " + e;
if (e !== StopIteration)
throw "Iterator(iterable, false): missing or invalid StopIteration";
}
if (iterable.persistedProp != 17)
throw "iterable.persistedProp not persisted!";
/* Test key-only Iterator */
index = 0;
lastSeen = undefined;
it = Iterator(iterable, true);
try
{
while (true)
{
var nextVal = it.next();
if (nextVal !== keys[index])
throw "Iterator(iterable, true): wrong next result\n" +
" expected: " + keys[index] + "\n" +
" actual: " + nextVal;
lastSeen = keys[index];
index++;
}
}
catch (e)
{
if (lastSeen !== keys[keys.length - 1])
throw "Iterator(iterable, true): not everything was iterated!\n" +
" last iterated was: " + lastSeen + "\n" +
" error: " + e;
if (e !== StopIteration)
throw "Iterator(iterable, true): missing or invalid StopIteration";
}
if (iterable.persistedProp != 17)
throw "iterable.persistedProp not persisted!";
}
catch (e)
{
failed = e;
}
expect = false;
actual = failed;
reportCompare(expect, actual, summary);
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