Burn-in: Add CPU step

Add a clean step for CPU burn-in via stress-ng. Get basic
run parameters from the node's driver_info.

Story: #2007523
Task: #42382

Change-Id: I14fd4164991fb94263757244f716b6bfe8edf875

2 files changed, 63 insertions, 0 deletions

diff --git a/ironic_python_agent/tests/unit/test_burnin.py b/ironic_python_agent/tests/unit/test_burnin.py
new file mode 100644
index 00000000..d8339b6c
--- /dev/null
+++ b/ironic_python_agent/tests/unit/test_burnin.py
@@ -0,0 +1,56 @@
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from unittest import mock
+
+from ironic_lib import utils
+from oslo_concurrency import processutils
+
+from ironic_python_agent import burnin
+from ironic_python_agent import errors
+from ironic_python_agent.tests.unit import base
+
+
+@mock.patch.object(utils, 'execute', autospec=True)
+class TestBurnin(base.IronicAgentTest):
+
+    def test_stress_ng_cpu_default(self, mock_execute):
+
+        node = {'driver_info': {}}
+        mock_execute.return_value = (['out', 'err'])
+
+        burnin.stress_ng_cpu(node)
+
+        mock_execute.assert_called_once_with(
+            'stress-ng', '--cpu', 0, '--timeout', 86400, '--metrics-brief')
+
+    def test_stress_ng_cpu_non_default(self, mock_execute):
+
+        node = {'driver_info': {'agent_burnin_cpu_cpu': 3,
+                                'agent_burnin_cpu_timeout': 2911}}
+        mock_execute.return_value = (['out', 'err'])
+
+        burnin.stress_ng_cpu(node)
+
+        mock_execute.assert_called_once_with(
+            'stress-ng', '--cpu', 3, '--timeout', 2911, '--metrics-brief')
+
+    def test_stress_ng_cpu_no_stress_ng(self, mock_execute):
+
+        node = {'driver_info': {}}
+        mock_execute.side_effect = (['out', 'err'],
+                                    processutils.ProcessExecutionError())
+
+        burnin.stress_ng_cpu(node)
+
+        self.assertRaises(errors.CommandExecutionError,
+                          burnin.stress_ng_cpu, node)
diff --git a/ironic_python_agent/tests/unit/test_hardware.py b/ironic_python_agent/tests/unit/test_hardware.py
index 4135985e..019a14c0 100644
--- a/ironic_python_agent/tests/unit/test_hardware.py
+++ b/ironic_python_agent/tests/unit/test_hardware.py
@@ -149,6 +149,13 @@ class TestGenericHardwareManager(base.IronicAgentTest):
                 'interface': 'raid',
                 'reboot_requested': False,
                 'abortable': True
+            },
+            {
+                'step': 'burnin_cpu',
+                'priority': 0,
+                'interface': 'deploy',
+                'reboot_requested': False,
+                'abortable': True
             }
         ]
         clean_steps = self.hardware.get_clean_steps(self.node, [])