public function testUnionType()
{
$fooInterface = Type::of("Hediet\\Types\\Test\\FooInterface");
$foo = Type::of("Hediet\\Types\\Test\\Foo");
$fooOrFooInterface = Type::ofUnion(array($fooInterface, $foo));
$this->assertTrue($fooOrFooInterface->equals($fooInterface));
$this->assertTrue(Type::ofUnion(array($fooInterface, Type::ofBoolean()))->isAssignableFrom($foo));
$this->assertTrue(Type::ofUnion(array($fooInterface, Type::ofBoolean()))->isAssignableFrom(Type::ofBoolean()));
$this->assertFalse(Type::ofUnion(array($foo, Type::ofBoolean()))->isAssignableFrom($fooInterface));
$this->assertFalse(Type::ofUnion(array($foo, Type::ofBoolean()))->isAssignableFrom(Type::ofUnion(array($foo, Type::ofBoolean(), Type::ofNull()))));
$this->assertTrue(Type::ofUnion(array($foo, Type::ofBoolean(), Type::ofNull()))->isAssignableFrom(Type::ofUnion(array(Type::ofBoolean(), $foo))));
}
/**
* Gets a type that allows the given type to be null.
*
* @param \Hediet\Types\Type $type
*/
public static function ofNullable(Type $type)
{
return self::ofUnion(array($type, Type::ofNull()));
}