public function testSync()
{
$collection = new Collection([1, 2, 3, 4]);
$callback = function ($item) {
return is_int($item) ? $item * 10 : 'foo';
};
$actual = $collection->sync(4, $callback);
$this->assertEquals(new Collection([10, 20, 30, 40]), $actual);
$this->assertNotSame($collection, $actual);
$this->assertEquals(new Collection([10, 20]), $collection->sync(2, $callback));
/** Overflow with no callable */
$extra = new Collection();
$actual = $collection->sync(2, null, function ($item) use($extra) {
$extra->push($item);
});
$this->assertEquals(new Collection([1, 2]), $actual);
$this->assertEquals(new Collection([3, 4]), $extra);
/** Callable and overflow */
$extra = new Collection();
$actual = $collection->sync(2, $callback, function ($item) use($extra) {
$extra->push($item);
});
$this->assertEquals(new Collection([10, 20]), $actual);
$this->assertEquals(new Collection([3, 4]), $extra);
/** Size is less than current length */
$this->assertEquals(new Collection([10, 20, 30, 40, 'foo', 'foo']), $collection->sync(6, $callback, function () {
$this->fail('Overflow callback should not be invoked when there is no overflow.');
}));
}
