Pass options to each lifecycle method separately

This makes the MassPnfSim object instance stateless.

Change-Id: Ic8f7aefa0afb74a15491b5b0e8ba1cb80e3aa3ef
Issue-ID: INT-1629
Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>

4 files changed, 53 insertions, 39 deletions

diff --git a/test/mocks/mass-pnf-sim/MassPnfSim.py b/test/mocks/mass-pnf-sim/MassPnfSim.py
index d6972d978..dd6509430 100755
--- a/test/mocks/mass-pnf-sim/MassPnfSim.py
+++ b/test/mocks/mass-pnf-sim/MassPnfSim.py
@@ -87,7 +87,7 @@ class MassPnfSim:
     class _MassPnfSim_Decorators:
         @staticmethod
         def validate_subcommand(method):
-            def wrapper(self):
+            def wrapper(self, args): # pylint: disable=W0613
                 # Validate 'trigger_custom' subcommand options
                 if self.args.subcommand == 'trigger_custom':
                     if (self.args.triggerend + 1) > self._enum_sim_instances():
@@ -107,7 +107,14 @@ class MassPnfSim:
                 if (self.args.subcommand == 'bootstrap') and self._enum_sim_instances():
                     self.logger.error('Bootstrapped instances detected, not overwiriting, clean first')
                     exit(1)
-                method(self)
+                method(self, args)
+            return wrapper
+
+        @staticmethod
+        def substitute_instance_args(method):
+            def wrapper(self, args):
+                self.args = args
+                method(self, args)
             return wrapper
 
     log_lvl = logging.INFO
@@ -126,8 +133,7 @@ class MassPnfSim:
     sim_container_name = 'pnf-simulator'
     rop_script_name = 'ROP_file_creator.sh'
 
-    def __init__(self, args):
-        self.args = args
+    def __init__(self):
         self.logger = logging.getLogger(__name__)
         self.logger.setLevel(self.log_lvl)
         self.sim_dirname_pattern = "pnf-sim-lw-"
@@ -231,8 +237,9 @@ class MassPnfSim:
             f.write(template)
         chdir(old_pwd)
 
+    @_MassPnfSim_Decorators.substitute_instance_args
     @_MassPnfSim_Decorators.validate_subcommand
-    def bootstrap(self):
+    def bootstrap(self, args): # pylint: disable=W0613
         self.logger.info("Bootstrapping PNF instances")
 
         start_port = 2000
@@ -306,7 +313,8 @@ class MassPnfSim:
 
             self.logger.info(f'Done setting up instance #{i}')
 
-    def build(self):
+    @_MassPnfSim_Decorators.substitute_instance_args
+    def build(self, args): # pylint: disable=W0613
         self.logger.info("Building simulator image")
         if path.isfile('pnf-sim-lightweight/pom.xml'):
             self._run_cmd(self.mvn_build_cmd, 'pnf-sim-lightweight')
@@ -314,13 +322,15 @@ class MassPnfSim:
             self.logger.error('POM file was not found, Maven cannot run')
             exit(1)
 
-    def clean(self):
+    @_MassPnfSim_Decorators.substitute_instance_args
+    def clean(self, args): # pylint: disable=W0613
         self.logger.info('Cleaning simulators workdirs')
         for sim_id in range(self._enum_sim_instances()):
             rmtree(f"{self.sim_dirname_pattern}{sim_id}")
 
+    @_MassPnfSim_Decorators.substitute_instance_args
     @_MassPnfSim_Decorators.validate_subcommand
-    def start(self):
+    def start(self, args): # pylint: disable=W0613
         for i in range(*self._get_iter_range()):
             # If container is not running
             if f"{self.sim_container_name}-{i}" not in self._get_docker_containers():
@@ -333,8 +343,9 @@ class MassPnfSim:
             else:
                 self.logger.warning(f'Instance {self.sim_dirname_pattern}{i} containers are already up')
 
+    @_MassPnfSim_Decorators.substitute_instance_args
     @_MassPnfSim_Decorators.validate_subcommand
-    def status(self):
+    def status(self, args): # pylint: disable=W0613
         for i in range(*self._get_iter_range()):
             self.logger.info(f'Getting {self.sim_dirname_pattern}{i} instance status:')
             if f"{self.sim_container_name}-{i}" in self._get_docker_containers():
@@ -352,8 +363,9 @@ class MassPnfSim:
             else:
                 self.logger.info(' Simulator containers are down')
 
+    @_MassPnfSim_Decorators.substitute_instance_args
     @_MassPnfSim_Decorators.validate_subcommand
-    def stop(self):
+    def stop(self, args): # pylint: disable=W0613
         for i in range(*self._get_iter_range()):
             self.logger.info(f'Stopping {self.sim_dirname_pattern}{i} instance:')
             self.logger.info(f' PNF-Sim IP: {self._get_sim_instance_data(i)}')
@@ -384,8 +396,9 @@ class MassPnfSim:
             else:
                 self.logger.warning(" Simulator containers are already down")
 
+    @_MassPnfSim_Decorators.substitute_instance_args
     @_MassPnfSim_Decorators.validate_subcommand
-    def trigger(self):
+    def trigger(self, args): # pylint: disable=W0613
         self.logger.info("Triggering VES sending:")
         for i in range(*self._get_iter_range()):
             sim_ip = self._get_sim_instance_data(i)
@@ -415,8 +428,9 @@ class MassPnfSim:
     # Make the 'trigger_custom' an alias to the 'trigger' method
     trigger_custom = trigger
 
+    @_MassPnfSim_Decorators.substitute_instance_args
     @_MassPnfSim_Decorators.validate_subcommand
-    def stop_simulator(self):
+    def stop_simulator(self, args): # pylint: disable=W0613
         self.logger.info("Stopping sending PNF registration messages:")
         for i in range(*self._get_iter_range()):
             sim_ip = self._get_sim_instance_data(i)
diff --git a/test/mocks/mass-pnf-sim/mass-pnf-sim.py b/test/mocks/mass-pnf-sim/mass-pnf-sim.py
index fe6062637..ce8cd73a6 100755
--- a/test/mocks/mass-pnf-sim/mass-pnf-sim.py
+++ b/test/mocks/mass-pnf-sim/mass-pnf-sim.py
@@ -18,7 +18,7 @@ if __name__ == '__main__':
     MassPnfSim.log_lvl = log_lvl
 
     if args.subcommand is not None:
-        sim_routine = getattr(MassPnfSim(args), args.subcommand)
-        sim_routine()
+        sim_routine = getattr(MassPnfSim(), args.subcommand)
+        sim_routine(args)
     else:
         parser.print_usage()
diff --git a/test/mocks/mass-pnf-sim/test_cli.py b/test/mocks/mass-pnf-sim/test_cli.py
index 70c9b6c4f..06d018f39 100644
--- a/test/mocks/mass-pnf-sim/test_cli.py
+++ b/test/mocks/mass-pnf-sim/test_cli.py
@@ -26,7 +26,7 @@ def test_validate_trigger_custom(parser, caplog):
     args = parser.parse_args(['trigger_custom', '--triggerstart', '0',
                              '--triggerend', str(SIM_INSTANCES)])
     try:
-        MassPnfSim(args).trigger_custom()
+        MassPnfSim().trigger_custom(args)
     except SystemExit as e:
         assert e.code == 1
     assert "--triggerend value greater than existing instance count" in caplog.text
@@ -59,8 +59,8 @@ def test_count_option_bad_value(parser, caplog, subcommand):
     '''Test case where invalid value passed to '--count' opt'''
     try:
         args = parser.parse_args([subcommand, '--count', str(SIM_INSTANCES + 1)])
-        m = getattr(MassPnfSim(args), subcommand)
-        m()
+        m = getattr(MassPnfSim(), subcommand)
+        m(args)
     except SystemExit:
         pass
     assert '--count value greater that existing instance count' in caplog.text
diff --git a/test/mocks/mass-pnf-sim/test_lifecycle.py b/test/mocks/mass-pnf-sim/test_lifecycle.py
index d98ea48a9..0452c3298 100644
--- a/test/mocks/mass-pnf-sim/test_lifecycle.py
+++ b/test/mocks/mass-pnf-sim/test_lifecycle.py
@@ -14,16 +14,16 @@ from time import sleep
 @pytest.mark.parametrize("action", ['start', 'stop', 'trigger', 'status', 'stop_simulator'])
 def test_not_bootstrapped(action, caplog, args_start, args_stop, args_trigger, args_status, args_stop_simulator): # pylint: disable=W0613
     try:
-        m = getattr(MassPnfSim(eval(f'args_{action}')), action)
-        m()
+        m = getattr(MassPnfSim(), action)
+        m(eval(f'args_{action}'))
     except SystemExit as e:
         assert e.code == 1
     assert 'No bootstrapped instance found' in caplog.text
     caplog.clear()
 
-def test_bootstrap(args_bootstrap, parser, caplog):
+def test_bootstrap(args_bootstrap, caplog):
     # Initial bootstrap
-    MassPnfSim(args_bootstrap).bootstrap()
+    MassPnfSim().bootstrap(args_bootstrap)
     for instance in range(SIM_INSTANCES):
         assert f'Creating pnf-sim-lw-{instance}' in caplog.text
         assert f'Done setting up instance #{instance}' in caplog.text
@@ -31,14 +31,14 @@ def test_bootstrap(args_bootstrap, parser, caplog):
 
     # Verify bootstrap idempotence
     try:
-        MassPnfSim(args_bootstrap).bootstrap()
+        MassPnfSim().bootstrap(args_bootstrap)
     except SystemExit as e:
         assert e.code == 1
     assert 'Bootstrapped instances detected, not overwiriting, clean first' in caplog.text
     caplog.clear()
 
     # Verify simulator dirs created
-    sim_dirname_pattern = MassPnfSim(parser.parse_args([])).sim_dirname_pattern
+    sim_dirname_pattern = MassPnfSim().sim_dirname_pattern
     assert len(glob(f"{sim_dirname_pattern}*")) == SIM_INSTANCES
 
     # Verify ROP_file_creator.sh running
@@ -65,14 +65,14 @@ def test_bootstrap(args_bootstrap, parser, caplog):
         assert stat(cfg).st_uid == 0
 
 def test_bootstrap_status(args_status, caplog):
-    MassPnfSim(args_status).status()
+    MassPnfSim().status(args_status)
     for _ in range(SIM_INSTANCES):
         assert 'Simulator containers are down' in caplog.text
         assert 'Simulator response' not in caplog.text
     caplog.clear()
 
 def test_start(args_start, caplog):
-    MassPnfSim(args_start).start()
+    MassPnfSim().start(args_start)
     for instance in range(SIM_INSTANCES):
         instance_ip_offset = instance * 16
         ip_offset = 2
@@ -83,7 +83,7 @@ def test_start(args_start, caplog):
 
 def test_start_status(args_status, docker_containers, caplog):
     sleep(5) # Wait for the simulator to settle
-    MassPnfSim(args_status).status()
+    MassPnfSim().status(args_status)
     for instance in range(SIM_INSTANCES):
         assert '"simulatorStatus":"NOT RUNNING"' in caplog.text
         assert '"simulatorStatus":"RUNNING"' not in caplog.text
@@ -92,13 +92,13 @@ def test_start_status(args_status, docker_containers, caplog):
 
 def test_start_idempotence(args_start, caplog):
     '''Verify start idempotence'''
-    MassPnfSim(args_start).start()
+    MassPnfSim().start(args_start)
     assert 'containers are already up' in caplog.text
     assert 'Starting simulator containers' not in caplog.text
     caplog.clear()
 
 def test_trigger(args_trigger, caplog):
-    MassPnfSim(args_trigger).trigger()
+    MassPnfSim().trigger(args_trigger)
     for instance in range(SIM_INSTANCES):
         instance_ip_offset = instance * 16
         ip_offset = 2
@@ -108,7 +108,7 @@ def test_trigger(args_trigger, caplog):
     caplog.clear()
 
 def test_trigger_status(args_status, capfd, caplog):
-    MassPnfSim(args_status).status()
+    MassPnfSim().status(args_status)
     msg = capfd.readouterr()
     for _ in range(SIM_INSTANCES):
         assert '"simulatorStatus":"RUNNING"' in caplog.text
@@ -118,13 +118,13 @@ def test_trigger_status(args_status, capfd, caplog):
     caplog.clear()
 
 def test_trigger_idempotence(args_trigger, caplog):
-    MassPnfSim(args_trigger).trigger()
+    MassPnfSim().trigger(args_trigger)
     assert "Cannot start simulator since it's already running" in caplog.text
     assert 'Simulator started' not in caplog.text
     caplog.clear()
 
 def test_stop_simulator(args_stop_simulator, caplog):
-    MassPnfSim(args_stop_simulator).stop_simulator()
+    MassPnfSim().stop_simulator(args_stop_simulator)
     for instance in range(SIM_INSTANCES):
         instance_ip_offset = instance * 16
         ip_offset = 2
@@ -135,7 +135,7 @@ def test_stop_simulator(args_stop_simulator, caplog):
     caplog.clear()
 
 def test_stop_simulator_status(args_status, capfd, caplog):
-    MassPnfSim(args_status).status()
+    MassPnfSim().status(args_status)
     msg = capfd.readouterr()
     for _ in range(SIM_INSTANCES):
         assert '"simulatorStatus":"RUNNING"' not in caplog.text
@@ -145,7 +145,7 @@ def test_stop_simulator_status(args_status, capfd, caplog):
     caplog.clear()
 
 def test_stop_simulator_idempotence(args_stop_simulator, caplog):
-    MassPnfSim(args_stop_simulator).stop_simulator()
+    MassPnfSim().stop_simulator(args_stop_simulator)
     for instance in range(SIM_INSTANCES):
         instance_ip_offset = instance * 16
         ip_offset = 2
@@ -156,7 +156,7 @@ def test_stop_simulator_idempotence(args_stop_simulator, caplog):
     caplog.clear()
 
 def test_trigger_custom(args_trigger_custom, caplog):
-    MassPnfSim(args_trigger_custom).trigger_custom()
+    MassPnfSim().trigger_custom(args_trigger_custom)
     for instance in range(SIM_INSTANCES):
         instance_ip_offset = instance * 16
         ip_offset = 2
@@ -167,7 +167,7 @@ def test_trigger_custom(args_trigger_custom, caplog):
     caplog.clear()
 
 def test_stop(args_stop, caplog):
-    MassPnfSim(args_stop).stop()
+    MassPnfSim().stop(args_stop)
     for instance in range(SIM_INSTANCES):
         instance_ip_offset = instance * 16
         ip_offset = 2
@@ -178,14 +178,14 @@ def test_stop(args_stop, caplog):
     caplog.clear()
 
 def test_stop_status(args_status, docker_containers, caplog):
-    MassPnfSim(args_status).status()
+    MassPnfSim().status(args_status)
     for instance in range(SIM_INSTANCES):
         assert f"{PNF_SIM_CONTAINER_NAME}{instance}" not in docker_containers
         assert 'Simulator containers are down' in caplog.text
     caplog.clear()
 
 def test_stop_idempotence(args_stop, caplog, docker_containers):
-    MassPnfSim(args_stop).stop()
+    MassPnfSim().stop(args_stop)
     for instance in range(SIM_INSTANCES):
         assert f'Stopping pnf-sim-lw-{instance} instance:' in caplog.text
         assert f'ROP_file_creator.sh {instance} already not running' in caplog.text
@@ -195,6 +195,6 @@ def test_stop_idempotence(args_stop, caplog, docker_containers):
     caplog.clear()
 
 def test_clean(args_clean):
-    m = MassPnfSim(args_clean)
-    m.clean()
+    m = MassPnfSim()
+    m.clean(args_clean)
     assert not glob(f"{m.sim_dirname_pattern}*")