Regression tests executed before a new release

Each new version of raspiBackup is subjected to a regression test before release. Due to the many options and possible hardware and and software environments, a complete regression test is not possible. However, this ensures that the primary functionality of raspiBackup to create a backup for the various backup types and modes is definitely successful. Also, all new features, although they were of course already tested during development, are also tested again.

The regression test is carried out in a virtualized environment on a Linux desktop, in which a Raspi per Qemu is simulated. (See development-environment.)

A RaspbianOS Lite is taken as the basis. This is installed with the standard options of raspiBackup via dd, tar and rsync in normal mode, both for a pure SD card system as well as for a pure USB boot system. In addition, a tar and rsync backup is created in partition-oriented mode.

Afterwards, all the respective backups are restored with raspiBackup, these images are started via Qemu and the following tests are carried out:

• /boot/firmware/cmdline.txt is downloaded from the VM via scp to the host and checked
• /etc/fstab is downloaded from the VM to the host via scp and checked
• IP address 8.8.8.8 is pinged in the VM and tested to see if the ping was successful
• The number of active services of the original image is verified with service --status-all.

Every user of raspiBackup who uses additional options is strongly advised to carefully test backup and restore after a version upgrade of raspiBackup. In this context, please refer to the disclaimer.