Remove pragma no cover from code

Add exclude_lines in the report section of .coveragerc to ignore
abstract in test coverage

Change-Id: I7863a8ba7e20358fb7cdf3cc7e4d83871a5104ef

watcher/decision_engine/messaging/command/base.py

@@ -24,5 +24,4 @@ import six
 class BaseDecisionEngineCommand(object):
     @abc.abstractmethod
     def execute(self):
-        raise NotImplementedError(
-            "Should have implemented this")  # pragma:no cover
+        raise NotImplementedError()

watcher/decision_engine/messaging/event_consumer.py

@@ -36,4 +36,4 @@ class BaseEventConsumer(object):
 
     @abc.abstractmethod
     def execute(self, request_id, context, data):
-        raise NotImplementedError('Not implemented ...')  # pragma:no cover
+        raise NotImplementedError()

watcher/decision_engine/planner/base.py

@@ -33,5 +33,4 @@ class BasePlanner(object):
         and performance requirements are met.
         """
         # example: directed acyclic graph
-        raise NotImplementedError(
-            "Should have implemented this")  # pragma:no cover
+        raise NotImplementedError()

watcher/decision_engine/solution/base.py

@@ -53,10 +53,8 @@ class BaseSolution(object):
 
     @abc.abstractmethod
     def add_change_request(self, r):
-        raise NotImplementedError(
-            "Should have implemented this")  # pragma:no cover
+        raise NotImplementedError()
 
     @abc.abstractproperty
     def actions(self):
-        raise NotImplementedError(
-            "Should have implemented this")  # pragma:no cover
+        raise NotImplementedError()

watcher/decision_engine/solution/solution_comparator.py

@@ -24,5 +24,4 @@ import six
 class BaseSolutionComparator(object):
     @abc.abstractmethod
     def compare(self, sol1, sol2):
-        raise NotImplementedError(
-            "Should have implemented this")  # pragma:no cover
+        raise NotImplementedError()

watcher/decision_engine/solution/solution_evaluator.py

@@ -24,5 +24,4 @@ import six
 class BaseSolutionEvaluator(object):
     @abc.abstractmethod
     def evaluate(self, solution):
-        raise NotImplementedError(
-            "Should have implemented this")  # pragma:no cover
+        raise NotImplementedError()

watcher/decision_engine/strategy/context/base.py

@@ -24,5 +24,4 @@ import six
 class BaseStrategyContext(object):
     @abc.abstractmethod
     def execute_strategy(self, model):
-        raise NotImplementedError(
-            "Should have implemented this")  # pragma:no cover
+        raise NotImplementedError()

watcher/decision_engine/strategy/selection/base.py

@@ -24,5 +24,4 @@ import six
 class BaseSelector(object):
     @abc.abstractmethod
     def define_from_goal(self, goal_name):
-        raise NotImplementedError(
-            "Should have implemented this")  # pragma:no cover
+        raise NotImplementedError()