Extending MockViewBase with and methods. Silencing pandas linter erro…

…r (TBD if this is going to be covered in this PR).

src/dbally/views/pandas_base.py

@@ -43,7 +43,7 @@ async def apply_aggregation(self, aggregation: IQLQuery) -> None:
         Args:
             aggregation: IQLQuery object representing the aggregation to apply
         """
-        pass
+        pass  # pylint: disable=unnecessary-pass
 
     async def build_filter_node(self, node: syntax.Node) -> pd.Series:
         """

tests/unit/mocks.py

@@ -29,6 +29,12 @@ def list_filters(self) -> List[ExposedFunction]:
     async def apply_filters(self, filters: IQLQuery) -> None:
         ...
 
+    def list_aggregations(self) -> List[ExposedFunction]:
+        return []
+
+    async def apply_aggregation(self, filters: IQLQuery) -> None:
+        ...
+
     def execute(self, dry_run=False) -> ViewExecutionResult:
         return ViewExecutionResult(results=[], context={})