Debarshi Ray 7ab2f9b866 test/system: Replace fedora-toolbox:32 with fedora-toolbox:34

Fedora 32 reached End of Life on 25th May 2021:
https://docs.fedoraproject.org/en-US/releases/eol/

That's quite old because right now Fedora 35 is nearing its End of Life.

Since the tests are intended for Toolbx, not the Fedora infrastructure,
it will be better to use a newer image, because images that are too old
can get lost from registry.fedoraproject.org.  The fedora-toolbox:34
image can be a drop-in replacement for the fedora-toolbox:32 image for
the purposes of this test suite, and has the advantage of being newer.

Note that fedora-toolbox:34 is also old enough to test that the toolbox
binary runs against it's build-time ABI from the host, and not the
Toolbx container's ABI, when it's invoked as the entry point of the
container [1,2].  This is important because the subsequent commit will
add a test to ensure that.

[1] Commit 6063eb27b9
    https://github.com/containers/toolbox/issues/821

[2] Commit 6ad9c63180
    https://github.com/containers/toolbox/issues/529

https://github.com/containers/toolbox/pull/1187

2022-12-07 12:56:41 +01:00

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System tests

These tests are built with BATS (Bash Automated Testing System).

The tests are meant to ensure that Toolbox's functionality remains stable throughout updates of both Toolbox and Podman/libpod.

The tests are set up in a way that does not affect the host environment. Running them won't remove any existing containers or images.

Dependencies

awk
bats
GNU coreutils
httpd-tools
openssl
podman
skopeo
toolbox

These tests use a few standard libraries for bats which help with clarity and consistency. The libraries are bats-support and bats-assert. These libraries are provided as git submodules in the libs directory. Make sure both are present.

How to run the tests

First, make sure you have all the dependencies installed.

Enter the toolbox root folder
Invoke command bats ./test/system/ and the test suite should fire up

Mocking of images is done automatically to prevent potential networking issues and to speed up the cases.

By default the test suite uses the system versions of podman, skopeo and toolbox.

If you have a podman, skopeo or toolbox installed in a nonstandard location then you can use the PODMAN, SKOPEO and TOOLBOX environmental variables to set the path to the binaries. So the command to invoke the test suite could look something like this: PODMAN=/usr/libexec/podman TOOLBOX=./toolbox bats ./test/system/.

When running the tests, make sure the test suite: [job] jobs are successful. These jobs set up the whole environment and are a strict requirement for other jobs to run correctly.

Writing tests

Environmental variables

Inspect top part of libs/helpers.bats for a list of helper environmental variables

Naming convention

All tests should follow the nomenclature: [command]: <test description>...
When the test is expected to fail, start the test description with "Try to..."
When the test is to give a non obvious output, it should be put in parenthesis at the end of the title

Examples:

@test "create: Create the default container"
@test "rm: Try to remove a non-existent container"

Test case environment

All the tests start with a clean system (no images or containers) to make sure that there are no dependencies between tests and they are really isolated. Use the setup() and teardown() functions for that purpose.

Image registry

The system tests set up an OCI image registry for testing purposes - localhost:50000. The registry requires authentication. There is one account present: user (password: user)
The registry contains by default only one image: fedora-toolbox:34

Example pull of the fedora-toolbox:34 image:

$PODMAN login --username user --password user "$DOCKER_REG_URI"
$PODMAN pull "$DOCKER_REG_URI/fedora-toolbox:34"

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