ftests: Add cgroup_compare_cgroup() test

Add a test for the cgroup_compare_cgroup() python bindings

-----------------------------------------------------------------
Test Results:
	Run Date:                          Mar 07 12:49:07
	Passed:                                  1 test(s)
	Skipped:                                 0 test(s)
	Failed:                                  0 test(s)
-----------------------------------------------------------------
Timing Results:
	Test                                        Time (sec)
	------------------------------------------------------
	setup                                             0.00
	075-pybindings-cgroup_compare_cgroup.py           0.09
	teardown                                          0.00
	------------------------------------------------------
	Total Run Time                                    0.09

Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
(cherry picked from commit c9ff26e405141743eec2d271b9c1070a4ef9bb9a)

diff --git a/tests/ftests/075-pybindings-cgroup_compare_cgroup.py b/tests/ftests/075-pybindings-cgroup_compare_cgroup.py
new file mode 100755 (executable)
index 0000000..21bf2bd
--- /dev/null
+++ b/tests/ftests/075-pybindings-cgroup_compare_cgroup.py
@@ -0,0 +1,197 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1-only
+#
+# cgroup_compare_cgroup() test using the python bindings
+#
+# Copyright (c) 2023 Oracle and/or its affiliates.
+# Author: Tom Hromatka <tom.hromatka@oracle.com>
+#
+
+from cgroup import Cgroup as CgroupCli, Mode
+from libcgroup import Cgroup, Version
+import consts
+import ftests
+import sys
+import os
+
+CGNAME = '075cgcompare/compare'
+CONTROLLERS = ['cpu', 'memory', 'io', 'pids']
+
+
+def prereqs(config):
+    result = consts.TEST_PASSED
+    cause = None
+
+    if config.args.container:
+        result = consts.TEST_SKIPPED
+        cause = 'This test cannot be run within a container'
+        return result, cause
+
+    if Cgroup.cgroup_mode() != Mode.CGROUP_MODE_UNIFIED:
+        result = consts.TEST_SKIPPED
+        cause = 'This test requires the unified cgroup v2 hierarchy'
+
+    return result, cause
+
+
+def setup(config):
+    CgroupCli.create(config, CONTROLLERS, CGNAME)
+
+
+def test(config):
+    result = consts.TEST_PASSED
+    cause = None
+
+    #
+    # Test 1 - Compare matching empty cgroup instances
+    #
+    cgempty1 = Cgroup(CGNAME, Version.CGROUP_V2)
+    cgempty2 = Cgroup(CGNAME, Version.CGROUP_V2)
+
+    if cgempty1 != cgempty2:
+        result = consts.TEST_FAILED
+        cause = 'Empty cgroups do not match'
+
+    #
+    # Test 2 - Compare different empty cgroup instances
+    #
+    cgempty3 = Cgroup('foo', Version.CGROUP_V2)
+    cgempty4 = Cgroup('bar', Version.CGROUP_V2)
+
+    if cgempty3 == cgempty4:
+        result = consts.TEST_FAILED
+        tmp_cause = 'Empty cgroups erroneously match'
+        cause = '\n'.join(filter(None, [cause, tmp_cause]))
+
+    #
+    # Test 3 - Compare different empty cgroup instances
+    #
+    cgempty5 = Cgroup('baz', Version.CGROUP_V1)
+    cgempty6 = Cgroup('baz', Version.CGROUP_V2)
+
+    if cgempty5 == cgempty6:
+        result = consts.TEST_FAILED
+        tmp_cause = 'Empty cgroups erroneously match'
+        cause = '\n'.join(filter(None, [cause, tmp_cause]))
+
+    #
+    # Test 4 - Compare cgroups with only the controllers populated
+    #
+    cgctrl1 = Cgroup(CGNAME, Version.CGROUP_V2)
+    cgctrl1.add_all_controllers()
+
+    cgctrl2 = Cgroup(CGNAME, Version.CGROUP_V2)
+    for controller in CONTROLLERS:
+        cgctrl2.add_controller(controller)
+
+    if cgctrl1 != cgctrl2:
+        result = consts.TEST_FAILED
+        tmp_cause = 'Controller-only cgroups do not match'
+        cause = '\n'.join(filter(None, [cause, tmp_cause]))
+
+    #
+    # Test 5 - Compare populated cgroups
+    #
+    cgget1 = Cgroup(CGNAME, Version.CGROUP_V2)
+    cgget1.add_all_controllers()
+    cgget1.get()
+
+    cgget2 = Cgroup(CGNAME, Version.CGROUP_V2)
+    cgget2.get()
+
+    if cgget1 != cgget2:
+        result = consts.TEST_FAILED
+        tmp_cause = 'cgget1 and cgget2 cgroups do not match'
+        cause = '\n'.join(filter(None, [cause, tmp_cause]))
+
+    #
+    # Test 6 - Compare cgroups with differing uid/gids
+    #
+    cguid1 = Cgroup(CGNAME, Version.CGROUP_V2)
+    cguid1.set_uid_gid(123, 456, 789, 987)
+    cguid1.add_all_controllers()
+
+    cguid2 = Cgroup(CGNAME, Version.CGROUP_V2)
+    cguid2.set_uid_gid(123, 456, 789, 9870)
+    cguid2.add_all_controllers()
+
+    if cguid1 == cguid2:
+        result = consts.TEST_FAILED
+        tmp_cause = 'cguid1 and cguid2 erroneously match'
+        cause = '\n'.join(filter(None, [cause, tmp_cause]))
+
+    cguid2.set_uid_gid(123, 456, 7890, 987)
+    if cguid1 == cguid2:
+        result = consts.TEST_FAILED
+        tmp_cause = 'cguid1 and cguid2 erroneously match'
+        cause = '\n'.join(filter(None, [cause, tmp_cause]))
+
+    cguid2.set_uid_gid(123, 4560, 789, 987)
+    if cguid1 == cguid2:
+        result = consts.TEST_FAILED
+        tmp_cause = 'cguid1 and cguid2 erroneously match'
+        cause = '\n'.join(filter(None, [cause, tmp_cause]))
+
+    cguid2.set_uid_gid(1230, 456, 789, 987)
+    if cguid1 == cguid2:
+        result = consts.TEST_FAILED
+        tmp_cause = 'cguid1 and cguid2 erroneously match'
+        cause = '\n'.join(filter(None, [cause, tmp_cause]))
+
+    #
+    # Test 7 - Compare cgroups with matching uid/gids
+    #
+    cguid3 = Cgroup(CGNAME, Version.CGROUP_V2)
+    cguid3.set_uid_gid(2345, 678, 9012, 3456)
+    cguid3.add_all_controllers()
+
+    cguid4 = Cgroup(CGNAME, Version.CGROUP_V2)
+    cguid4.set_uid_gid(2345, 678, 9012, 3456)
+    cguid4.add_all_controllers()
+
+    if cguid3 != cguid4:
+        result = consts.TEST_FAILED
+        tmp_cause = 'cguid3 and cguid4 do not match'
+        cause = '\n'.join(filter(None, [cause, tmp_cause]))
+
+    #
+    # Test 8 - Compare cgroups with different controller counts
+    #
+    cgctrl3 = Cgroup(CGNAME, Version.CGROUP_V2)
+    cgctrl3.add_controller(CONTROLLERS[0])
+    cgctrl3.add_controller(CONTROLLERS[1])
+
+    cgctrl4 = Cgroup(CGNAME, Version.CGROUP_V2)
+    cgctrl4.add_controller(CONTROLLERS[0])
+
+    if cgctrl3 == cgctrl4:
+        result = consts.TEST_FAILED
+        tmp_cause = 'controller-only cgroups erroneously match'
+        cause = '\n'.join(filter(None, [cause, tmp_cause]))
+
+    return result, cause
+
+
+def teardown(config):
+    CgroupCli.delete(config, CONTROLLERS, CGNAME, recursive=True)
+
+
+def main(config):
+    [result, cause] = prereqs(config)
+    if result != consts.TEST_PASSED:
+        return [result, cause]
+
+    setup(config)
+    [result, cause] = test(config)
+    teardown(config)
+
+    return [result, cause]
+
+
+if __name__ == '__main__':
+    config = ftests.parse_args()
+    # this test was invoked directly.  run only it
+    config.args.num = int(os.path.basename(__file__).split('-')[0])
+    sys.exit(ftests.main(config))
+
+# vim: set et ts=4 sw=4:

diff --git a/tests/ftests/Makefile.am b/tests/ftests/Makefile.am
index 1a1d1d5b92f59991c2690cf54b5a3507d582e7c5..f25aab5ca596364fc8a1b8d4b4fdb5ce751d6aa8 100644 (file)
--- a/tests/ftests/Makefile.am
+++ b/tests/ftests/Makefile.am
@@ -95,6 +95,7 @@ EXTRA_DIST_PYTHON_TESTS = \
                          072-pybindings-cgroup_get_cgroup.py \
                          073-pybindings-cgroup_add_all_controllers-v2.py \
                          074-pybindings-cgroup_add_all_controllers-v1.py \
+                         075-pybindings-cgroup_compare_cgroup.py \
                          998-cgdelete-non-existing-shared-mnt-cgroup-v1.py
 # Intentionally omit the stress test from the extra dist
 # 999-stress-cgroup_init.py