def test_process_cgroup_metric_with_incorrect_cgroups_mounted(self, *args):
num_extensions = 5
self._track_new_extension_cgroups(num_extensions)
for data_count in range(1, 10):
metrics = CGroupsTelemetry.poll_all_tracked()
self.assertEqual(len(metrics), 0)
self.assertEqual(CGroupsTelemetry._cgroup_metrics.__len__(),
num_extensions)
collected_metrics = {}
for name, cgroup_metrics in CGroupsTelemetry._cgroup_metrics.items():
collected_metrics[name] = CGroupsTelemetry._process_cgroup_metric(
cgroup_metrics)
self.assertEqual(collected_metrics[name], {}) # empty
def test_process_cgroup_metric_with_incorrect_cgroups_mounted(self, *args):
num_extensions = 5
for i in range(num_extensions):
dummy_cpu_cgroup = CGroup.create("dummy_cpu_path_{0}".format(i), "cpu", "dummy_extension_{0}".format(i))
CGroupsTelemetry.track_cgroup(dummy_cpu_cgroup)
dummy_memory_cgroup = CGroup.create("dummy_memory_path_{0}".format(i), "memory",
"dummy_extension_{0}".format(i))
CGroupsTelemetry.track_cgroup(dummy_memory_cgroup)
with patch("azurelinuxagent.common.cgroup.CpuCgroup.get_cpu_usage") as patch_get_cpu_usage:
with patch("azurelinuxagent.common.cgroup.MemoryCgroup.get_memory_usage") as patch_get_memory_usage:
patch_get_cpu_usage.side_effect = Exception("File not found")
patch_get_memory_usage.side_effect = Exception("File not found")
for data_count in range(1, 10):
CGroupsTelemetry.poll_all_tracked()
self.assertEqual(CGroupsTelemetry._cgroup_metrics.__len__(), num_extensions)
collected_metrics = {}
for name, cgroup_metrics in CGroupsTelemetry._cgroup_metrics.items():
collected_metrics[name] = CGroupsTelemetry._process_cgroup_metric(cgroup_metrics)
self.assertEqual(collected_metrics[name], {}) # empty