def oracle_ds(request, fixture_utils, paths, metadata_version, mocker):
"""
Return an instantiated DataSourceOracle.
This also performs the mocking required:
* ``_read_system_uuid`` returns something,
* ``_is_platform_viable`` returns True,
* ``DataSourceOracle._is_iscsi_root`` returns True by default or what
pytest.mark.is_iscsi gives as first param,
* ``DataSourceOracle._get_iscsi_config`` returns a network cfg if
is_iscsi else an empty network config,
* ``read_opc_metadata`` returns ``OPC_V1_METADATA``,
* ``ephemeral.EphemeralDHCPv4`` and ``net.find_fallback_nic`` mocked to
avoid subp calls
(This uses the paths fixture for the required helpers.Paths object, and the
fixture_utils fixture for fetching markers.)
"""
sys_cfg = fixture_utils.closest_marker_first_arg_or(
request, "ds_sys_cfg", mock.MagicMock()
)
is_iscsi = fixture_utils.closest_marker_first_arg_or(
request, "is_iscsi", True
)
metadata = OpcMetadata(metadata_version, json.loads(OPC_V2_METADATA), None)
mocker.patch(DS_PATH + ".net.find_fallback_nic")
mocker.patch(DS_PATH + ".ephemeral.EphemeralDHCPv4")
mocker.patch(DS_PATH + "._read_system_uuid", return_value="someuuid")
mocker.patch(DS_PATH + "._is_platform_viable", return_value=True)
mocker.patch(DS_PATH + ".read_opc_metadata", return_value=metadata)
mocker.patch(DS_PATH + ".KlibcOracleNetworkConfigSource")
ds = oracle.DataSourceOracle(
sys_cfg=sys_cfg,
distro=mock.Mock(),
paths=paths,
)
mocker.patch.object(ds, "_is_iscsi_root", return_value=is_iscsi)
if is_iscsi:
iscsi_config = copy.deepcopy(KLIBC_NET_CFG)
else:
iscsi_config = {"version": 1, "config": []}
mocker.patch.object(ds, "_get_iscsi_config", return_value=iscsi_config)
yield ds
