public function test()
{
$constraint = new UniqueKey('foo', 'column');
$this->assertSame('foo', $constraint->getName());
$this->assertSame('UNIQUE KEY `foo` (`column`)', $constraint->buildCreate());
$this->assertSame('ADD CONSTRAINT `foo` UNIQUE (`column`)', $constraint->buildAdd());
$this->assertSame('DROP INDEX `foo`', $constraint->buildDrop());
$constraint = new UniqueKey('foo', 'column', 'column2');
$this->assertSame('foo', $constraint->getName());
$this->assertSame('UNIQUE KEY `foo` (`column`, `column2`)', $constraint->buildCreate());
$this->assertSame('ADD CONSTRAINT `foo` UNIQUE (`column`, `column2`)', $constraint->buildAdd());
$this->assertSame('DROP INDEX `foo`', $constraint->buildDrop());
}