QA:Testcase partitioning webui guided encrypted

Associated release criterion
This test case is associated with the Fedora_42_Beta_Release_Criteria#guided-partitioning release criterion. If you are doing release validation testing, a failure of this test case may be a breach of that release criterion. If so, please file a bug and nominate it as blocking the appropriate milestone, using the blocker bug nomination page.

Description

This test case tests whether encryption can be successfully used during a guided partitioning-based system installation using the webui-based installer.

Setup

1. Prepare a test system with a working, supported storage device of sufficient size for a Fedora install, and a Fedora installation medium that uses the webui-based installer - e.g. Fedora Workstation live, on Fedora 42 and above.

How to test

1. Boot the webui-based installer using any available means, e.g. Fedora Workstation live on Fedora 42+.
2. Proceed to the installer's "Installation method" screen, making sensible choices.
3. Ensure the target device you prepared is selected as the "Destination".
4. Ensure the "Use entire disk" option is selected, and click "Next".
5. On the Storage Configuration screen, select the option to encrypt the installation ("Encrypt my data") and click Next.
6. Complete the installation process, making sensible selections for all other installer options.
7. Boot the installed system.
8. After installation is complete, perform QA:Testcase_base_startup to ensure the installed system boots correctly with the encrypted partition.

Expected Results

1. The expected partition layout should be created on the target device(s).
2. The install process should complete successfully and the installed system should boot as expected.
3. The system should prompt for the encryption passphrase early in the boot process, and successfully unlock the encrypted partitions and complete boot only if the correct passphrase is entered.