Add tox.ini file to implement rocks stanity tests

.github/workflows/on_pull_request.yaml

@@ -11,3 +11,8 @@ jobs:
     permissions:
       pull-requests: read
     secrets: inherit
+    with:
+      rockcraft-channel: latest/stable
+      microk8s-channel: 1.26-strict/stable
+      juju-channel: 3.1/stable
+      python-version: "3.8"

.github/workflows/on_push.yaml

@@ -14,3 +14,8 @@ jobs:
     permissions:
       pull-requests: read
     secrets: inherit
+    with:
+      rockcraft-channel: latest/stable
+      microk8s-channel: 1.26-strict/stable
+      juju-channel: 3.1/stable
+      python-version: "3.8"

dex/tests/test_rock.py

@@ -0,0 +1,41 @@
+# Copyright 2022 Canonical Ltd.
+# See LICENSE file for licensing details.
+#
+#
+
+from pathlib import Path
+
+import os
+import logging
+import random
+import pytest
+import string
+import subprocess
+import yaml
+
+from charmed_kubeflow_chisme.rock import CheckRock
+
+@pytest.fixture()
+def rock_test_env(tmpdir):
+    """Yields a temporary directory and random docker container name, then cleans them up after."""
+    container_name = "".join([str(i) for i in random.choices(string.ascii_lowercase, k=8)])
+    yield tmpdir, container_name
+
+    try:
+        subprocess.run(["docker", "rm", container_name])
+    except Exception:
+        pass
+    # tmpdir fixture we use here should clean up the other files for us
+
+@pytest.mark.abort_on_fail
+def test_rock(rock_test_env):
+    """Test rock."""
+    temp_dir, container_name = rock_test_env
+    check_rock = CheckRock("rockcraft.yaml")
+    rock_image = check_rock.get_name()
+    rock_version = check_rock.get_version()
+    LOCAL_ROCK_IMAGE = f"{rock_image}:{rock_version}"
+
+    # create ROCK filesystem
+    subprocess.run(["docker", "run", LOCAL_ROCK_IMAGE, "exec", "ls", "-la", "/usr/local/bin/docker-entrypoint"], check=True)
+    subprocess.run(["docker", "run", LOCAL_ROCK_IMAGE, "exec", "ls", "-la", "/usr/local/bin/dex"], check=True)

dex/tox.ini

@@ -0,0 +1,62 @@
+# Copyright 2023 Canonical Ltd.
+# See LICENSE file for licensing details.
+[tox]
+skipsdist = True
+skip_missing_interpreters = True
+envlist = pack, export-to-docker, sanity, integration
+
+[testenv]
+setenv =
+    PYTHONPATH={toxinidir}
+    PYTHONBREAKPOINT=ipdb.set_trace
+
+[testenv:pack]
+passenv = *
+allowlist_externals =
+    rockcraft
+commands =
+    rockcraft pack
+
+[testenv:export-to-docker]
+passenv = *
+allowlist_externals =
+    bash
+    skopeo
+    yq
+commands =
+    # export already packed rock to docker
+    bash -c 'NAME=$(yq eval .name rockcraft.yaml) && \
+             VERSION=$(yq eval .version rockcraft.yaml) && \
+             ARCH=$(yq eval ".platforms | keys | .[0]" rockcraft.yaml) && \
+             ROCK="$\{NAME\}_$\{VERSION\}_$\{ARCH\}.rock" && \
+             DOCKER_IMAGE=$NAME:$VERSION && \\
+             echo "Exporting $ROCK to docker as $DOCKER_IMAGE" && \
+             skopeo --insecure-policy copy oci-archive:$ROCK docker-daemon:$DOCKER_IMAGE'
+
+[testenv:sanity]
+passenv = *
+deps =
+    pytest
+    charmed-kubeflow-chisme
+allowlist_externals = 
+    echo
+commands =
+    # run rock tests
+    pytest -v --tb native --show-capture=all --log-cli-level=INFO {posargs} {toxinidir}/tests
+
+
+[testenv:integration]
+passenv = *
+allowlist_externals =
+    echo
+    bash
+    git
+    rm
+    tox
+deps =
+    juju<4.0
+    pytest
+    pytest-operator
+    ops
+commands =
+    echo "WARNING: This is a placeholder test - no test is implemented here."