public function testEncryptDecrypt()
{
$plainText = "plaintext";
$encryptedText = Cipher::getInstance()->encrypt($plainText);
// Assert that the encrypted text is not the same as the plain text
$this->assertNotEquals($plainText, $encryptedText);
// Assert that the encrypted text is equal to the plain text when decrypted
$this->assertEquals($plainText, Cipher::getInstance()->decrypt($encryptedText));
}
