diff options
Diffstat (limited to 'cloudinit/config/tests')
| -rw-r--r-- | cloudinit/config/tests/test_grub_dpkg.py | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/cloudinit/config/tests/test_grub_dpkg.py b/cloudinit/config/tests/test_grub_dpkg.py new file mode 100644 index 00000000..01efa330 --- /dev/null +++ b/cloudinit/config/tests/test_grub_dpkg.py @@ -0,0 +1,176 @@ +# This file is part of cloud-init. See LICENSE file for license information. + +import pytest + +from unittest import mock +from logging import Logger +from cloudinit.util import ProcessExecutionError +from cloudinit.config.cc_grub_dpkg import fetch_idevs, handle + + +class TestFetchIdevs: + """Tests cc_grub_dpkg.fetch_idevs()""" + + # Note: udevadm info returns devices in a large single line string + @pytest.mark.parametrize( + "grub_output,path_exists,expected_log_call,udevadm_output" + ",expected_idevs", + [ + # Inside a container, grub not installed + ( + ProcessExecutionError(reason=FileNotFoundError()), + False, + mock.call("'grub-probe' not found in $PATH"), + '', + '', + ), + # Inside a container, grub installed + ( + ProcessExecutionError(stderr="failed to get canonical path"), + False, + mock.call("grub-probe 'failed to get canonical path'"), + '', + '', + ), + # KVM Instance + ( + ['/dev/vda'], + True, + None, + ( + '/dev/disk/by-path/pci-0000:00:00.0 ', + '/dev/disk/by-path/virtio-pci-0000:00:00.0 ' + ), + '/dev/vda', + ), + # Xen Instance + ( + ['/dev/xvda'], + True, + None, + '', + '/dev/xvda', + ), + # NVMe Hardware Instance + ( + ['/dev/nvme1n1'], + True, + None, + ( + '/dev/disk/by-id/nvme-Company_hash000 ', + '/dev/disk/by-id/nvme-nvme.000-000-000-000-000 ', + '/dev/disk/by-path/pci-0000:00:00.0-nvme-0 ' + ), + '/dev/disk/by-id/nvme-Company_hash000', + ), + # SCSI Hardware Instance + ( + ['/dev/sda'], + True, + None, + ( + '/dev/disk/by-id/company-user-1 ', + '/dev/disk/by-id/scsi-0Company_user-1 ', + '/dev/disk/by-path/pci-0000:00:00.0-scsi-0:0:0:0 ' + ), + '/dev/disk/by-id/company-user-1', + ), + ], + ) + @mock.patch("cloudinit.config.cc_grub_dpkg.util.logexc") + @mock.patch("cloudinit.config.cc_grub_dpkg.os.path.exists") + @mock.patch("cloudinit.config.cc_grub_dpkg.util.subp") + def test_fetch_idevs(self, m_subp, m_exists, m_logexc, grub_output, + path_exists, expected_log_call, udevadm_output, + expected_idevs): + """Tests outputs from grub-probe and udevadm info against grub-dpkg""" + m_subp.side_effect = [ + grub_output, + ["".join(udevadm_output)] + ] + m_exists.return_value = path_exists + log = mock.Mock(spec=Logger) + idevs = fetch_idevs(log) + assert expected_idevs == idevs + if expected_log_call is not None: + assert expected_log_call in log.debug.call_args_list + + +class TestHandle: + """Tests cc_grub_dpkg.handle()""" + + @pytest.mark.parametrize( + "cfg_idevs,cfg_idevs_empty,fetch_idevs_output,expected_log_output", + [ + ( + # No configuration + None, + None, + '/dev/disk/by-id/nvme-Company_hash000', + ( + "Setting grub debconf-set-selections with ", + "'/dev/disk/by-id/nvme-Company_hash000','false'" + ), + ), + ( + # idevs set, idevs_empty unset + '/dev/sda', + None, + '/dev/sda', + ( + "Setting grub debconf-set-selections with ", + "'/dev/sda','false'" + ), + ), + ( + # idevs unset, idevs_empty set + None, + 'true', + '/dev/xvda', + ( + "Setting grub debconf-set-selections with ", + "'/dev/xvda','true'" + ), + ), + ( + # idevs set, idevs_empty set + '/dev/vda', + 'false', + '/dev/disk/by-id/company-user-1', + ( + "Setting grub debconf-set-selections with ", + "'/dev/vda','false'" + ), + ), + ( + # idevs set, idevs_empty set + # Respect what the user defines, even if its logically wrong + '/dev/nvme0n1', + 'true', + '', + ( + "Setting grub debconf-set-selections with ", + "'/dev/nvme0n1','true'" + ), + ) + ], + ) + @mock.patch("cloudinit.config.cc_grub_dpkg.fetch_idevs") + @mock.patch("cloudinit.config.cc_grub_dpkg.util.get_cfg_option_str") + @mock.patch("cloudinit.config.cc_grub_dpkg.util.logexc") + @mock.patch("cloudinit.config.cc_grub_dpkg.util.subp") + def test_handle(self, m_subp, m_logexc, m_get_cfg_str, m_fetch_idevs, + cfg_idevs, cfg_idevs_empty, fetch_idevs_output, + expected_log_output): + """Test setting of correct debconf database entries""" + m_get_cfg_str.side_effect = [ + cfg_idevs, + cfg_idevs_empty + ] + m_fetch_idevs.return_value = fetch_idevs_output + log = mock.Mock(spec=Logger) + handle(mock.Mock(), mock.Mock(), mock.Mock(), log, mock.Mock()) + log.debug.assert_called_with("".join(expected_log_output)) + + +# vi: ts=4 expandtab |