tests: admin.vm.Stats

QubesOS/qubes-issues#853

qubes/tests/api_admin.py

@@ -27,6 +27,7 @@ import shutil
 import unittest.mock
 
 import libvirt
+import copy
 
 import qubes
 import qubes.devices
@@ -1820,6 +1821,139 @@ class TC_00_VMs(AdminAPITestCase):
         self.assertFalse(self.vm.firewall.save.called)
         self.assertFalse(self.app.save.called)
 
+    def test_600_vm_stats(self):
+        send_event = unittest.mock.Mock(spec=[])
+
+        stats1 = {
+            0: {
+                'cpu_time': 243951379111104 // 8,
+                'cpu_usage': 0,
+                'memory_kb': 3733212,
+            },
+            1: {
+                'cpu_time': 2849496569205,
+                'cpu_usage': 0,
+                'memory_kb': 303916,
+            },
+        }
+        stats2 = copy.deepcopy(stats1)
+        stats2[0]['cpu_time'] += 100000000
+        stats2[0]['cpu_usage'] = 10
+        stats2[1]['cpu_usage'] = 5
+        self.app.host.get_vm_stats = unittest.mock.Mock()
+        self.app.host.get_vm_stats.side_effect = [
+            (0, stats1), (1, stats2),
+        ]
+        self.app.stats_interval = 1
+        mgmt_obj = qubes.api.admin.QubesAdminAPI(
+            self.app, b'dom0', b'admin.vm.Stats',
+            b'dom0', b'', send_event=send_event)
+
+        def cancel_call():
+            mgmt_obj.cancel()
+
+        class MockVM(object):
+            def __init__(self, name):
+                self._name = name
+
+            def name(self):
+                return self._name
+
+        loop = asyncio.get_event_loop()
+        self.app.vmm.libvirt_conn.lookupByID.side_effect = lambda xid: {
+            0: MockVM('Domain-0'),
+            1: MockVM('test-template'),
+            2: MockVM('test-vm1')}[xid]
+        execute_task = asyncio.ensure_future(
+            mgmt_obj.execute(untrusted_payload=b''))
+        loop.call_later(1.1, cancel_call)
+        loop.run_until_complete(execute_task)
+        self.assertIsNone(execute_task.result())
+        self.assertEventFired(self.emitter,
+            'admin-permission:' + 'admin.vm.Stats')
+        self.assertEqual(self.app.host.get_vm_stats.mock_calls, [
+            unittest.mock.call(None, None, only_vm=None),
+            unittest.mock.call(0, stats1, only_vm=None),
+        ])
+        self.assertEqual(send_event.mock_calls, [
+            unittest.mock.call(self.app, 'connection-established'),
+                unittest.mock.call('dom0', 'vm-stats',
+                    cpu_time=stats1[0]['cpu_time'] // 1000000,
+                    cpu_usage=stats1[0]['cpu_usage'],
+                    memory_kb=stats1[0]['memory_kb']),
+                unittest.mock.call('test-template', 'vm-stats',
+                    cpu_time=stats1[1]['cpu_time'] // 1000000,
+                    cpu_usage=stats1[1]['cpu_usage'],
+                    memory_kb=stats1[1]['memory_kb']),
+                unittest.mock.call('dom0', 'vm-stats',
+                    cpu_time=stats2[0]['cpu_time'] // 1000000,
+                    cpu_usage=stats2[0]['cpu_usage'],
+                    memory_kb=stats2[0]['memory_kb']),
+                unittest.mock.call('test-template', 'vm-stats',
+                    cpu_time=stats2[1]['cpu_time'] // 1000000,
+                    cpu_usage=stats2[1]['cpu_usage'],
+                    memory_kb=stats2[1]['memory_kb']),
+            ])
+
+    def test_601_vm_stats_single_vm(self):
+        send_event = unittest.mock.Mock(spec=[])
+
+        stats1 = {
+            2: {
+                'cpu_time': 2849496569205,
+                'cpu_usage': 0,
+                'memory_kb': 303916,
+            },
+        }
+        stats2 = copy.deepcopy(stats1)
+        stats2[2]['cpu_usage'] = 5
+        self.app.host.get_vm_stats = unittest.mock.Mock()
+        self.app.host.get_vm_stats.side_effect = [
+            (0, stats1), (1, stats2),
+        ]
+        self.app.stats_interval = 1
+        mgmt_obj = qubes.api.admin.QubesAdminAPI(
+            self.app, b'dom0', b'admin.vm.Stats',
+            b'test-vm1', b'', send_event=send_event)
+
+        def cancel_call():
+            mgmt_obj.cancel()
+
+        class MockVM(object):
+            def __init__(self, name):
+                self._name = name
+
+            def name(self):
+                return self._name
+
+        loop = asyncio.get_event_loop()
+        self.app.vmm.libvirt_conn.lookupByID.side_effect = lambda xid: {
+            0: MockVM('Domain-0'),
+            1: MockVM('test-template'),
+            2: MockVM('test-vm1')}[xid]
+        execute_task = asyncio.ensure_future(
+            mgmt_obj.execute(untrusted_payload=b''))
+        loop.call_later(1.1, cancel_call)
+        loop.run_until_complete(execute_task)
+        self.assertIsNone(execute_task.result())
+        self.assertEventFired(self.emitter,
+            'admin-permission:' + 'admin.vm.Stats')
+        self.assertEqual(self.app.host.get_vm_stats.mock_calls, [
+            unittest.mock.call(None, None, only_vm=self.vm),
+            unittest.mock.call(0, stats1, only_vm=self.vm),
+        ])
+        self.assertEqual(send_event.mock_calls, [
+            unittest.mock.call(self.app, 'connection-established'),
+                unittest.mock.call('test-vm1', 'vm-stats',
+                    cpu_time=stats1[2]['cpu_time'] // 1000000,
+                    cpu_usage=stats1[2]['cpu_usage'],
+                    memory_kb=stats1[2]['memory_kb']),
+                unittest.mock.call('test-vm1', 'vm-stats',
+                    cpu_time=stats2[2]['cpu_time'] // 1000000,
+                    cpu_usage=stats2[2]['cpu_usage'],
+                    memory_kb=stats2[2]['memory_kb']),
+            ])
+
 
     def test_990_vm_unexpected_payload(self):
         methods_with_no_payload = [