newFromCiphertext( null ); $invalid2 = $passwordFactory->newFromCiphertext( null ); $this->assertFalse( $invalid1->equals( $invalid2 ) ); } public function testInvalidPlaintext() { $passwordFactory = new PasswordFactory(); $invalid = $passwordFactory->newFromPlaintext( null ); $this->assertInstanceOf( InvalidPassword::class, $invalid ); } }