Comment 22 for bug 1881632

--- BEGIN focal update-notifier testing
--- Launch cloud-init with ppa:ua-client/proposed enabled
Creating test-sru-focal
Starting test-sru-focal
--- Wait for cloud-init to finish
..............................................................................................................................................................
status: done
time: Mon, 30 Nov 2020 20:19:32 +0000
detail:
DataSourceNoCloud [seed=/var/lib/cloud/seed/nocloud-net][dsmode=net]
--- Attach Ubuntu-Advantage, enabling services
Enabling default service esm-infra
Updating package lists
ESM Infra enabled
This machine is now attached to '<email address hidden>'

SERVICE ENTITLED STATUS DESCRIPTION
esm-infra yes enabled UA Infra: Extended Security Maintenance (ESM)
livepatch yes n/a Canonical Livepatch service

Enable services with: ua enable <service>

     Account: <email address hidden>
Subscription: <email address hidden>
--- Install a downgraded hello package which ESM-focal delivers
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following package was automatically installed and is no longer required:
  libfreetype6
Use 'apt autoremove' to remove it.
The following NEW packages will be installed:
  hello
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 28.2 kB of archives.
After this operation, 115 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu focal/main amd64 hello amd64 2.10-2ubuntu2 [28.2 kB]
Fetched 28.2 kB in 1s (47.2 kB/s)
Selecting previously unselected package hello.
(Reading database ... 31579 files and directories currently installed.)
Preparing to unpack .../hello_2.10-2ubuntu2_amd64.deb ...
Unpacking hello (2.10-2ubuntu2) ...
Setting up hello (2.10-2ubuntu2) ...
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for install-info (6.7.0.dfsg.2-5) ...
--- Expect 0 upgradable packages for MOTD from apt_check before upgrade
UA Infrastructure Extended Security Maintenance (ESM) is enabled.

1 update can be installed immediately.
1 of these updates is provided through UA Infrastructure ESM.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable
0 of these updates are security updates.
SUCCESS: found 0 ESM security updates pre-upgrade
--- Upgrade update-notifier from -proposed
  update-notifier-common
Get:1 http://archive.ubuntu.com/ubuntu focal-proposed/main amd64 update-notifier-common all 3.192.30.1 [162 kB]
dpkg-preconfigure: unable to re-open stdin: No such file or directory
Preparing to unpack .../update-notifier-common_3.192.30.1_all.deb ...
Unpacking update-notifier-common (3.192.30.1) over (3.192.30) ...
Setting up update-notifier-common (3.192.30.1) ...
--- Expect non-zero upgradable packages for MOTD from apt_check AFTER upgrade
1 of these updates is a security update.
SUCCESS: found 1 ESM security updates pre-upgrade