]> git.ipfire.org Git - nitsi.git/blobdiff - src/nitsi/test.py
Fix logging
[nitsi.git] / src / nitsi / test.py
index 0ddcdab5d4205c32056f454213b0f6d711ce0f96..92d403b451462c36594d7544fb08fef5bdf598e2 100755 (executable)
 #!/usr/bin/python3
 
-
+import configparser
 import libvirt
-
+import logging
 import os
+import time
 
-import configparser
+from . import recipe
+from . import virtual_environ
+from . import settings
+from . import cmd
 
-from nitsi.virtual_environ import virtual_environ
-from nitsi.recipe import recipe
+logger = logging.getLogger("nitsi.test")
 
-import logging
 
-logger = logging.getLogger("nitsi.test")
+class TestException(Exception):
+    def __init__(self, message):
+        self.message = message
 
-class test():
-    def __init__(self, path):
-        try:
-            self.path = os.path.abspath(path)
-            self.log = logger.getChild(os.path.basename(self.path))
-        except BaseException as e:
-            logger.error("Could not get absolute path")
+class Test():
+    def __init__(self, log_path, dir=None, recipe_file=None, settings_file=None, cmd_settings=None):
+        # init settings var
+        self.settings = {}
+
+        # Set default values for the settings dict
+        self.settings["name"] = ""
+        self.settings["description"] = ""
+        self.settings["copy_from"] = None
+        self.settings["copy_to"] = None
+        self.settings["virtual_environ_path"] = None
+        self.settings["interactive_error_handling"] = True
+
+        self.cmd_settings = cmd_settings
+        self.log_path = log_path
+
+        # Init all vars with None
+        self.settings_file = None
+        self.recipe_file = None
+        self.path = None
+
+        # We need at least a path to a recipe file or a dir to a test
+        if not dir and not recipe:
+            raise TestException("Did not get a path to a test or to a recipe file")
 
-        self.log.debug("Path of this test is: {}".format(self.path))
+        # We cannot decide which to use when we get both
+        if (dir and recipe_file) or (dir and settings_file):
+            raise TestException("Get dir and path to recipe or settings file")
 
-        self.settings_file = "{}/settings".format(self.path)
-        if not os.path.isfile(self.settings_file):
-            self.log.error("No such file: {}".format(self.settings_file))
+        if dir:
+            try:
+                if not os.path.isabs(dir):
+                    self.path = os.path.abspath(dir)
+            except BaseException as e:
+                logger.error("Could not get absolute path")
+                raise e
 
-        self.recipe_file = "{}/recipe".format(self.path)
-        if not os.path.isfile(self.recipe_file):
-            self.log.error("No such file: {}".format(self.recipe_file))
+            logger.debug("Path of this test is: {}".format(self.path))
+
+            self.recipe_file = "{}/recipe".format(self.path)
+            self.settings_file = "{}/settings".format(self.path)
+
+
+        # We can also go on without a settings file
+        if self.settings_file:
+            if not os.path.isfile(self.settings_file):
+                logger.error("No such file: {}".format(self.settings_file))
+                raise TestException("No settings file found")
+
+        # os.path.isfile fails if self.recipe_file is None so we cannot use an and statement
+        if self.recipe_file:
+            if not os.path.isfile(self.recipe_file):
+                logger.error("No such file: {}".format(self.recipe_file))
+                raise TestException("No recipe file found")
+        else:
+            logger.error("No such file: {}".format(self.recipe_file))
+            raise TestException("No recipe file found")
+
+        if recipe_file:
+            if not os.path.isabs(recipe_file):
+                self.recipe_file = os.path.abspath(recipe_file)
+            else:
+                self.recipe_file = recipe_file
+
+        if settings_file:
+            if not os.path.isabs(settings_file):
+                self.settings_file = os.path.abspath(settings_file)
+            else:
+                self.settings_file = settings_file
+
+
+        # Init logging
+        if dir:
+            self.log = logger.getChild(os.path.basename(self.path))
+        # We get a recipe when we get here
+        else:
+            self.log = logger.getChild(os.path.basename(self.recipe_file))
 
     def read_settings(self):
-        self.config = configparser.ConfigParser()
-        self.config.read(self.settings_file)
-        self.name = self.config["DEFAULT"]["Name"]
-        self.description = self.config["DEFAULT"]["Description"]
-        self.copy_to = self.config["DEFAULT"]["Copy_to"]
-        self.copy_from = self.config["DEFAULT"]["Copy_from"]
-        self.copy_from = self.copy_from.split(",")
+        if self.settings_file:
+            self.log.debug("Going to read all settings from the ini file")
+            try:
+                self.config = configparser.ConfigParser()
+                self.config.read(self.settings_file)
+            except BaseException as e:
+                self.log.error("Failed to parse the config")
+                raise e
+
+            self.settings["name"] = self.config.get("GENERAL","name", fallback="")
+            self.settings["description"] = self.config.get("GENERAL", "description",  fallback="")
+            self.settings["copy_to"] = self.config.get("GENERAL", "copy_to", fallback=None)
+            self.settings["copy_from"] = self.config.get("GENERAL", "copy_from", fallback=None)
+            self.settings["virtual_environ_path"] = self.config.get("VIRTUAL_ENVIRONMENT", "path", fallback=None)
+
+            # We need to parse some settings here because they are loaded from a settings file
+            if not os.path.isabs(self.settings["virtual_environ_path"]):
+                self.settings["virtual_environ_path"] = os.path.normpath(os.path.dirname(
+                    self.settings_file) + "/" + self.settings["virtual_environ_path"])
+
+            # Parse copy_from setting
+            if self.settings["copy_from"]:
+                self.settings["copy_from"] = settings.settings_parse_copy_from(self.settings["copy_from"],
+                path=os.path.dirname(self.settings_file))
 
-        tmp = []
-        for file in self.copy_from:
-            file = file.strip()
-            file = os.path.normpath(self.path + "/" + file)
-            tmp.append(file)
+        # Update all settings from the cmd
+        self.settings.update(self.cmd_settings)
 
-        self.copy_from = tmp
+        if not os.path.isabs(self.settings["virtual_environ_path"]):
+            self.settings["virtual_environ_path"] = os.path.abspath(self.settings["virtual_environ_path"])
 
-        self.virtual_environ_name = self.config["VIRTUAL_ENVIRONMENT"]["Name"]
-        self.virtual_environ_path = self.config["VIRTUAL_ENVIRONMENT"]["Path"]
-        self.virtual_environ_path = os.path.normpath(self.path + "/" + self.virtual_environ_path)
 
-    def virtual_environ_setup(self):
-        self.virtual_environ = virtual_environ(self.virtual_environ_path)
+        # Check if we get at least a valid a valid path to virtual environ
+        if not self.settings["virtual_environ_path"]:
+            self.log.error("No path for virtual environment found.")
+            raise TestException("No path for virtual environment found.")
+
+        # Print all settings for debugging purpose
+        self.log.debug("Settings are:")
+        for key in self.settings:
+            self.log.debug("{}: {}".format(key, self.settings[key]))
+
+
+    def virtual_environ_setup_stage_1(self):
+        self.virtual_environ = virtual_environ.VirtualEnviron(self.settings["virtual_environ_path"])
 
         self.virtual_networks = self.virtual_environ.get_networks()
 
         self.virtual_machines = self.virtual_environ.get_machines()
 
+    def virtual_environ_setup_stage_2(self):
+        # built up which machines which are used in our recipe
+        used_machines = []
+
+        for line in self.recipe.recipe:
+            if not line[0] in used_machines:
+                used_machines.append(line[0])
+
+        self.log.debug("Machines used in this recipe {}".format(used_machines))
+
+        self.used_machine_names = used_machines
+
+        for machine in self.used_machine_names:
+            if not machine in self.virtual_environ.machine_names:
+                raise TestException("{} is listed as machine in the recipe, but the virtual environmet does not have such a machine".format(machine))
+
+
     def virtual_environ_start(self):
         for name in self.virtual_environ.network_names:
             self.virtual_networks[name].define()
             self.virtual_networks[name].start()
 
-        for name in self.virtual_environ.machine_names:
+        for name in self.used_machine_names:
             self.virtual_machines[name].define()
             self.virtual_machines[name].create_snapshot()
-            self.virtual_machines[name].copy_in(self.copy_from, self.copy_to)
+            # We can only copy files when we know which and to which dir
+            if self.settings["copy_from"] and self.settings["copy_to"]:
+                self.virtual_machines[name].copy_in(self.settings["copy_from"], self.settings["copy_to"])
             self.virtual_machines[name].start()
 
-        self.log.debug("Try to login on all machines")
-        for name in self.virtual_environ.machine_names:
-            self.log.debug("Try to login on {}".format(name))
-            self.virtual_machines[name].login()
+        # Time to which all serial output log entries are relativ
+        log_start_time = time.time()
+
+        # Number of chars of the longest machine name
+        longest_machine_name = self.virtual_environ.longest_machine_name
+
+        self.log.info("Try to intialize the serial connection, connect and login on all machines")
+        for name in self.used_machine_names:
+            self.log.info("Try to initialize the serial connection connect and login on {}".format(name))
+            self.virtual_machines[name].serial_init(log_file="{}/test.log".format(self.log_path),
+                                                log_start_time=log_start_time,
+                                                longest_machine_name=longest_machine_name)
+            self.virtual_machines[name].serial_connect()
 
     def load_recipe(self):
         self.log.info("Going to load the recipe")
         try:
-            self.recipe = recipe(self.recipe_file)
+            self.recipe = recipe.Recipe(self.recipe_file,
+                fallback_machines=self.virtual_environ.machine_names)
+
             for line in self.recipe.recipe:
                 self.log.debug(line)
 
@@ -88,27 +205,93 @@ class test():
             self.log.error("Failed to load recipe")
             raise e
 
+    # This functions tries to handle an error of the test (eg. when 'echo "Hello World"' failed)
+    # in an interactive way
+    # returns False when the test should exit right now, and True when the test should go on
+    def interactive_error_handling(self):
+        if not self.settings["interactive_error_handling"]:
+            return False
+
+        _cmd = cmd.CMD(intro="You are droppped into an interative debugging shell because of the previous errors",
+            help={"exit": "Exit the test rigth now",
+                "continue": "Continues the test without any error handling, so do not expect that the test succeeds.",
+                "debug": "Disconnects from the serial console and prints the devices to manually connect to the virtual machines." \
+                    "This is useful when you can fix th error with some manual commands. Please disconnect from the serial consoles and " \
+                    "choose 'exit or 'continue'  when you are done"})
+
+        command = _cmd.get_input(valid_commands=["continue", "exit", "debug"])
+
+        if command == "continue":
+            # The test should go on but we do not any debugging, so we return True
+            return True
+        elif command == "exit":
+            # The test should exit right now (normal behaviour)
+            return False
+
+        # If we get here we are in debugging mode
+        # Disconnect from the serial console:
+
+        for name in self.used_machine_names:
+            _cmd.print_to_cmd("Disconnect from the serial console of {}".format(name))
+            self.virtual_machines[name].serial_disconnect()
+
+        # Print the serial device for each machine
+        for name in self.used_machine_names:
+            device  = self.virtual_machines[name].get_serial_device()
+            _cmd.print_to_cmd("Serial device of {} is {}".format(name, device))
+
+        _cmd.print_to_cmd("You can now connect to all serial devices, and send custom commands to the virtual machines." \
+            "Please type 'continue' or 'exit' when you disconnected from als serial devices and want to go on.")
+
+        command = _cmd.get_input(valid_commands=["continue", "exit"])
+
+        if command == "exit":
+            return False
+
+        # We should continue whit the test
+        # Reconnect to the serial devices
+
+        for name in self.used_machine_names:
+            self.log.info("Try to reconnect to {}".format(name))
+            self.virtual_machines[name].serial_connect()
+
+        return True
+
     def run_recipe(self):
         for line in self.recipe.recipe:
             return_value = self.virtual_machines[line[0]].cmd(line[2])
             self.log.debug("Return value is: {}".format(return_value))
             if return_value != "0" and line[1] == "":
-                self.log.error("Failed to execute command '{}' on {}, return code: {}".format(line[2],line[0], return_value))
-                return False
+                err_msg = "Failed to execute command '{}' on {}, return code: {}".format(line[2],line[0], return_value)
+                # Try to handle this error in an interactive way, if we cannot go on
+                # raise an exception and exit
+                if not self.interactive_error_handling():
+                    raise TestException(err_msg)
+
             elif return_value == "0" and line[1] == "!":
-                self.log.error("Succeded to execute command '{}' on {}, return code: {}".format(line[2],line[0],return_value))
-                return False
+                err_msg = "Succeded to execute command '{}' on {}, return code: {}".format(line[2],line[0],return_value)
+                self.log.error(err_msg)
+                # Try to handle this error in an interactive way, if we cannot go on
+                # raise an exception and exit
+                if not self.interactive_error_handling():
+                    raise TestException(err_msg)
             else:
                 self.log.debug("Command '{}' on {} returned with: {}".format(line[2],line[0],return_value))
 
     def virtual_environ_stop(self):
-        for name in self.virtual_environ.machine_names:
-            self.virtual_machines[name].shutdown()
-            self.virtual_machines[name].revert_snapshot()
-            self.virtual_machines[name].undefine()
+        for name in self.used_machine_names:
+            # We just catch exception here to avoid
+            # that we stop the cleanup process if only  one command fails
+            try:
+                self.virtual_machines[name].shutdown()
+                self.virtual_machines[name].revert_snapshot()
+                self.virtual_machines[name].undefine()
+            except BaseException as e:
+                self.log.exception(e)
 
         for name in self.virtual_environ.network_names:
-            self.virtual_networks[name].undefine()
-
-
+            try:
+                self.virtual_networks[name].undefine()
+            except BaseException as e:
+                 self.log.exception(e)