diff options
Diffstat (limited to 'cloudinit/tests/test_dmi.py')
| -rw-r--r-- | cloudinit/tests/test_dmi.py | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/cloudinit/tests/test_dmi.py b/cloudinit/tests/test_dmi.py deleted file mode 100644 index 78a72122..00000000 --- a/cloudinit/tests/test_dmi.py +++ /dev/null @@ -1,154 +0,0 @@ -from cloudinit.tests import helpers -from cloudinit import dmi -from cloudinit import util -from cloudinit import subp - -import os -import tempfile -import shutil -from unittest import mock - - -class TestReadDMIData(helpers.FilesystemMockingTestCase): - - def setUp(self): - super(TestReadDMIData, self).setUp() - self.new_root = tempfile.mkdtemp() - self.addCleanup(shutil.rmtree, self.new_root) - self.reRoot(self.new_root) - p = mock.patch("cloudinit.dmi.is_container", return_value=False) - self.addCleanup(p.stop) - self._m_is_container = p.start() - p = mock.patch("cloudinit.dmi.is_FreeBSD", return_value=False) - self.addCleanup(p.stop) - self._m_is_FreeBSD = p.start() - - def _create_sysfs_parent_directory(self): - util.ensure_dir(os.path.join('sys', 'class', 'dmi', 'id')) - - def _create_sysfs_file(self, key, content): - """Mocks the sys path found on Linux systems.""" - self._create_sysfs_parent_directory() - dmi_key = "/sys/class/dmi/id/{0}".format(key) - util.write_file(dmi_key, content) - - def _configure_dmidecode_return(self, key, content, error=None): - """ - In order to test a missing sys path and call outs to dmidecode, this - function fakes the results of dmidecode to test the results. - """ - def _dmidecode_subp(cmd): - if cmd[-1] != key: - raise subp.ProcessExecutionError() - return (content, error) - - self.patched_funcs.enter_context( - mock.patch("cloudinit.dmi.subp.which", side_effect=lambda _: True)) - self.patched_funcs.enter_context( - mock.patch("cloudinit.dmi.subp.subp", side_effect=_dmidecode_subp)) - - def _configure_kenv_return(self, key, content, error=None): - """ - In order to test a FreeBSD system call outs to kenv, this - function fakes the results of kenv to test the results. - """ - def _kenv_subp(cmd): - if cmd[-1] != dmi.DMIDECODE_TO_KERNEL[key].freebsd: - raise subp.ProcessExecutionError() - return (content, error) - - self.patched_funcs.enter_context( - mock.patch("cloudinit.dmi.subp.subp", side_effect=_kenv_subp)) - - def patch_mapping(self, new_mapping): - self.patched_funcs.enter_context( - mock.patch('cloudinit.dmi.DMIDECODE_TO_KERNEL', - new_mapping)) - - def test_sysfs_used_with_key_in_mapping_and_file_on_disk(self): - self.patch_mapping({'mapped-key': dmi.kdmi('mapped-value', None)}) - expected_dmi_value = 'sys-used-correctly' - self._create_sysfs_file('mapped-value', expected_dmi_value) - self._configure_dmidecode_return('mapped-key', 'wrong-wrong-wrong') - self.assertEqual(expected_dmi_value, dmi.read_dmi_data('mapped-key')) - - def test_dmidecode_used_if_no_sysfs_file_on_disk(self): - self.patch_mapping({}) - self._create_sysfs_parent_directory() - expected_dmi_value = 'dmidecode-used' - self._configure_dmidecode_return('use-dmidecode', expected_dmi_value) - with mock.patch("cloudinit.util.os.uname") as m_uname: - m_uname.return_value = ('x-sysname', 'x-nodename', - 'x-release', 'x-version', 'x86_64') - self.assertEqual(expected_dmi_value, - dmi.read_dmi_data('use-dmidecode')) - - def test_dmidecode_not_used_on_arm(self): - self.patch_mapping({}) - print("current =%s", subp) - self._create_sysfs_parent_directory() - dmi_val = 'from-dmidecode' - dmi_name = 'use-dmidecode' - self._configure_dmidecode_return(dmi_name, dmi_val) - print("now =%s", subp) - - expected = {'armel': None, 'aarch64': dmi_val, 'x86_64': dmi_val} - found = {} - # we do not run the 'dmi-decode' binary on some arches - # verify that anything requested that is not in the sysfs dir - # will return None on those arches. - with mock.patch("cloudinit.util.os.uname") as m_uname: - for arch in expected: - m_uname.return_value = ('x-sysname', 'x-nodename', - 'x-release', 'x-version', arch) - print("now2 =%s", subp) - found[arch] = dmi.read_dmi_data(dmi_name) - self.assertEqual(expected, found) - - def test_none_returned_if_neither_source_has_data(self): - self.patch_mapping({}) - self._configure_dmidecode_return('key', 'value') - self.assertIsNone(dmi.read_dmi_data('expect-fail')) - - def test_none_returned_if_dmidecode_not_in_path(self): - self.patched_funcs.enter_context( - mock.patch.object(subp, 'which', lambda _: False)) - self.patch_mapping({}) - self.assertIsNone(dmi.read_dmi_data('expect-fail')) - - def test_empty_string_returned_instead_of_foxfox(self): - # uninitialized dmi values show as \xff, return empty string - my_len = 32 - dmi_value = b'\xff' * my_len + b'\n' - expected = "" - dmi_key = 'system-product-name' - sysfs_key = 'product_name' - self._create_sysfs_file(sysfs_key, dmi_value) - self.assertEqual(expected, dmi.read_dmi_data(dmi_key)) - - def test_container_returns_none(self): - """In a container read_dmi_data should always return None.""" - - # first verify we get the value if not in container - self._m_is_container.return_value = False - key, val = ("system-product-name", "my_product") - self._create_sysfs_file('product_name', val) - self.assertEqual(val, dmi.read_dmi_data(key)) - - # then verify in container returns None - self._m_is_container.return_value = True - self.assertIsNone(dmi.read_dmi_data(key)) - - def test_container_returns_none_on_unknown(self): - """In a container even bogus keys return None.""" - self._m_is_container.return_value = True - self._create_sysfs_file('product_name', "should-be-ignored") - self.assertIsNone(dmi.read_dmi_data("bogus")) - self.assertIsNone(dmi.read_dmi_data("system-product-name")) - - def test_freebsd_uses_kenv(self): - """On a FreeBSD system, kenv is called.""" - self._m_is_FreeBSD.return_value = True - key, val = ("system-product-name", "my_product") - self._configure_kenv_return(key, val) - self.assertEqual(dmi.read_dmi_data(key), val) |