public static function Instance()
{
if (self::$instance === null) {
self::$instance = new SingleSpoon();
}
return self::$instance;
}
function test()
{
$spoonForFirstPerson = SingleSpoon::Instance();
$spoonForFirstPerson->useSpoon();
$this->assertEquals($spoonForFirstPerson ? $spoonForFirstPerson->toString() : "No spoon was available", 'The spoon is not available. The spoon was not used yet.', 'Test first spoon use');
$spoonForSecondPerson = SingleSpoon::Instance();
$this->assertEquals($spoonForFirstPerson, $spoonForSecondPerson, 'Object toString expected to be equal');
$spoonForSecondPerson->useSpoon();
$this->assertEquals($spoonForSecondPerson ? $spoonForSecondPerson->toString() : "No spoon was available", 'The spoon is not available. The spoon was not used yet.', 'Test second spoon use');
$spoonForFirstPerson->returnSpoon();
$spoonForSecondPerson->useSpoon();
$this->assertEquals($spoonForSecondPerson ? $spoonForSecondPerson->toString() : "No spoon was available", 'The spoon is not available. The spoon was not used yet.', 'Test second spoon use after return');
}
