public function testBackwardCompatibility()
{
$this->bcrypt->setSalt($this->salt);
$this->bcrypt->setBackwardCompatibility(true);
$password = $this->bcrypt->create($this->password);
$this->assertEquals('$2a$', substr($password, 0, 4));
$this->assertEquals(substr($password, 4), substr($this->bcryptPassword, 4));
}
