test/mod/test_util_containers.py

gistfile1.txt

# cat test/mod/test_util_containers.py 
#
# Test for util/containers.py
#

import textwrap

import pytest

import osbuild.testutil
from osbuild.util import containers


def test_container_mount_error():
    fake_podman = textwrap.dedent("""\
    #!/bin/sh
    echo "some msg on stdout"
    echo "other error on stderr" >&2
    exit 1
    """)
    input_image = {
            "filepath": "path",
            "manifest-list": "manifest-list-path",
            "data": {'name': 'foo', 'format': 'containers-storage'},
            "checksum": "sha256:abcdabcd"
    }
    
    with tempfile.TemporaryDirectory(prefix='test-util-containers') as tmpd:
    with osbuild.testutil.make_container(tmpd, {
        "file1": "file1 content",
    }) as base_tag:
        image_id = subprocess.check_output(["podman", "inspect", "-f", "{{ .Id }}", base_tag],
                                           universal_newlines=True).strip()
        input_image['checksum'] = f"sha256:{image_id}"
        with osbuild.testutil.mock_command("podman", fake_podman):
            with pytest.raises(RuntimeError) as exp:
                with containers.container_mount(input_image):
                    pass
    assert "some msg on stdout" not in str(exp.value)
    assert "other error on stderr" in str(exp.value)