Associated release criterion
This test case is associated with the Fedora_42_Beta_Release_Criteria#custom-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

A complete installation using webui's 'storage editor' and the Btrfs filesystem for system partitions.

Setup

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.

Boot the webui-based installer using any available means, e.g. Fedora Workstation live on Fedora 42+.
Proceed to the installer's "Installation method" screen, making sensible choices.
Ensure only the single target device you prepared is selected as the installation target disk.
Click the 'kebab menu' (the three white dots in a vertical line) at the top-right corner, and click "Launch storage editor". Click "Launch storage editor" again to confirm.
On the Storage screen, delete all existing partitions (if any), using the kebab menu for each partition.
Create any necessary bootloader partitions (e.g. EFI System Partition for UEFI installs, BIOS Boot partition for BIOS installs onto a GPT disk, PReP boot partition for PowerPC installs).
Create an ext4 or xfs /boot partition.
Create an appropriately-sized swap partition.
Create a root partition and set the filesystem type to btrfs.
Optionally create other partitions like /home and set the filesystem type to btrfs also.
Complete the installation process, making sensible selections for all other installer options.
Boot the installed system.

The expected partition layout should be created on the target device(s).
The install process should complete successfully and the installed system should boot as expected.