Merge "Turn Sphinx warnings into errors"
[functest.git] / functest / core / feature.py
index bab1d50..140c9bb 100644 (file)
 # which accompanies this distribution, and is available at
 # http://www.apache.org/licenses/LICENSE-2.0
 
+"""Define the parent class of all Functest Features.
+
+Feature is considered as TestCase offered by Third-party. It offers
+helpers to run any python method or any bash command.
+"""
+
+import logging
 import time
 
 import functest.core.testcase as base
 import functest.utils.functest_utils as ft_utils
-import functest.utils.functest_logger as ft_logger
 from functest.utils.constants import CONST
 
+__author__ = ("Serena Feng <feng.xiaowei@zte.com.cn>, "
+              "Cedric Ollivier <cedric.ollivier@orange.com>")
+
 
 class Feature(base.TestCase):
+    """Base model for single feature."""
+
+    __logger = logging.getLogger(__name__)
 
     def __init__(self, **kwargs):
         super(Feature, self).__init__(**kwargs)
-        self.cmd = kwargs.get('cmd', '')
         self.result_file = "{}/{}.log".format(
-            CONST.__getattribute__('dir_results'), self.project_name)
-        self.logger = ft_logger.Logger(self.project_name).getLogger()
+            CONST.__getattribute__('dir_results'), self.case_name)
 
     def execute(self, **kwargs):
+        """Execute the Python method.
+
+        The subclasses must override the default implementation which
+        is false on purpose.
+
+        The new implementation must return 0 if success or anything
+        else if failure.
+
+        Args:
+            kwargs: Arbitrary keyword arguments.
+
+        Returns:
+            -1.
+        """
         # pylint: disable=unused-argument,no-self-use
         return -1
 
     def run(self, **kwargs):
+        """Run the feature.
+
+        It allows executing any Python method by calling execute().
+
+        It sets the following attributes required to push the results
+        to DB:
+
+            * result,
+            * start_time,
+            * stop_time.
+
+        It doesn't fulfill details when pushing the results to the DB.
+
+        Args:
+            kwargs: Arbitrary keyword arguments.
+
+        Returns:
+            TestCase.EX_OK if execute() returns 0,
+            TestCase.EX_RUN_ERROR otherwise.
+        """
         self.start_time = time.time()
         exit_code = base.TestCase.EX_RUN_ERROR
-        self.criteria = "FAIL"
+        self.result = 0
         try:
             if self.execute(**kwargs) == 0:
                 exit_code = base.TestCase.EX_OK
-                self.criteria = 'PASS'
+                self.result = 100
             ft_utils.logger_test_results(
                 self.project_name, self.case_name,
-                self.criteria, self.details)
-            self.logger.info("%s %s", self.project_name, self.criteria)
+                self.result, self.details)
         except Exception:  # pylint: disable=broad-except
-            self.logger.exception("%s FAILED", self.project_name)
-        self.logger.info("Test result is stored in '%s'", self.result_file)
+            self.__logger.exception("%s FAILED", self.project_name)
+        self.__logger.info("Test result is stored in '%s'", self.result_file)
         self.stop_time = time.time()
         return exit_code
 
 
 class BashFeature(Feature):
+    """Class designed to run any bash command."""
+
+    __logger = logging.getLogger(__name__)
 
     def execute(self, **kwargs):
+        """Execute the cmd passed as arg
+
+        Args:
+            kwargs: Arbitrary keyword arguments.
+
+        Returns:
+            0 if cmd returns 0,
+            -1 otherwise.
+        """
         ret = -1
         try:
             cmd = kwargs["cmd"]
             ret = ft_utils.execute_command(cmd, output_file=self.result_file)
         except KeyError:
-            self.logger.error("Please give cmd as arg. kwargs: %s", kwargs)
+            self.__logger.error("Please give cmd as arg. kwargs: %s", kwargs)
         except Exception:  # pylint: disable=broad-except
-            self.logger.exception("Execute cmd: %s failed", cmd)
+            self.__logger.exception("Execute cmd: %s failed", cmd)
         return ret