public function testShouldCheckRuleWhenInputIsNotOptional()
{
$input = 'foo';
$validatable = $this->getMock('Respect\\Validation\\Validatable');
$validatable->expects($this->once())->method('check')->with($input)->will($this->returnValue(true));
$rule = new Optional($validatable);
$this->assertTrue($rule->check($input));
}
public function run()
{
DB::table('optionals')->truncate();
$optional = new Optional();
$optional->name = "New";
$optional->save();
$optional = new Optional();
$optional->name = "Sale";
$optional->save();
}
/**
* Create new Optional (aka "Maybe") monad.
*
* @param mixed $value a value
* @return Optional an Optional monad
*/
function optional($value) : Optional
{
return Optional::create($value);
}
public function reduce(BiFunc $accumulator) : Optional
{
$first = true;
foreach ($this->execute() as $v) {
if ($first) {
$identity = $v;
$first = false;
} else {
$identity = $accumulator->apply($identity, $v);
}
}
if ($first) {
return Optional::empty();
} else {
return Optional::of($identity);
}
}
/**
* Whether the contained value equals the value contained in another Optional
* @param Optional $object
* @return bool
*/
public function equals(Optional $object)
{
if ($object instanceof Some) {
return $this->ref === $object->get();
}
return false;
}
