mtempling / dg

How to test dmce-gui using incus containers.

dg

Automatic testing of dmce-gui within an incus container.

architecture

ove digraph
                        ┌─────────────┐
       ┌─────────────── │     ag      │
       │                └─────────────┘
       │                  │
       │                  │
       │                  ▼
       │                ┌─────────────┐
       │                │    base     │ ◀┐
       │                └─────────────┘  │
       │                                 │
  ┌────┘                                 │
  │                                      │
  │  ┌────────────┐     ┌─────────────┐  │
  │  │ screencast │ ◀── │     dg      │  │
  │  └────────────┘     └─────────────┘  │
  │                       │              │
  │                       │              │
  │                       ▼              │
  │  ┌────────────┐     ┌─────────────┐  │
  │  │   godot    │ ◀── │  dmce_gui   │  │
  │  └────────────┘     └─────────────┘  │
  │                       │              │
  │                       │              │
  │                       ▼              │
  │  ┌────────────┐     ┌─────────────┐  │
  └▶ │     xz     │ ◀── │    dmce     │ ─┘
     └────────────┘     └─────────────┘
                          │
                          │
                          ▼
                        ┌─────────────┐
                        │ clang_tools │
                        └─────────────┘

setup

curl -sSL https://raw.githubusercontent.com/Ericsson/ove/master/setup | bash -s dg https://github.com/mtempling/dg.git
cd dg
source ove
ove distrocheck base ubuntu/22.04/amd64

The "ove distrocheck..." command will first make sure that both incus and Xpra is installed on the host. NOTE: The incus installation is just a minimal installation.

When incus and Xpra has been installed, distrocheck will continue and launch an incus container based on Ubuntu 22.04. A few packages will be installed within the container:

• openssh
• OVE packages
• Xfce
• Xpra

Finally the post-distrocheck hook script will install a Xfce autostart file and restart the container. The autostart script will launch the following command:

ove distcheck dg

Looking into the dg's distcheck code one can see that ag is built, then OVE is configured to screenrecord all OVE commands. Finally, "ove dmce trace-lazy ag" is launched two times. First with Terminal GUI then using the Godot GUI.

useful commands

Attach to the container and peek into the action:

xpra attach --ssh=ssh ssh:${OVE_DISTROCHECK_CONTAINER_NAME:?}

Find the recorded screencast:

find $OVE_LOG_DIR -type f -name "*-ove-dmce-${OVE_DISTROCHECK_CONTAINER_NAME:?}-dg.mp4"

Remove the container:

incus delete -f ${OVE_DISTROCHECK_CONTAINER_NAME:?}

configuration

Check this file.