Add tests (#1) (#5)

* add models tests (#1)

also replace single quote to double one to confort PEP docstring
+ move _check_output to class properties to make it available for
mocking

* alpm tests implementation

* try to replace os with pathlib

* update tests for pathlib

* fix includes glob and trim version from dependencies

* build_tools package tests

* repository component tests

* add sign tests

* complete status tests

* handle exceptions in actual_version calls

* complete core tests

* move configuration to root conftest

* application tests

* complete application tests

* change copyright to more generic one

* base web tests

* complete web tests

* complete testkit

also add argument parsers test

src/ahriman/application/handlers/rebuild.py

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2021 Evgenii Alekseev.
+# Copyright (c) 2021 ahriman team.
 #
 # This file is part of ahriman
 # (see https://github.com/arcan1s/ahriman).
@@ -27,18 +27,18 @@ from ahriman.core.configuration import Configuration
 
 
 class Rebuild(Handler):
-    '''
+    """
     make world handler
-    '''
+    """
 
     @classmethod
     def run(cls: Type[Handler], args: argparse.Namespace, architecture: str, config: Configuration) -> None:
-        '''
+        """
         callback for command line
         :param args: command line args
         :param architecture: repository architecture
         :param config: configuration instance
-        '''
+        """
         application = Application(architecture, config)
         packages = application.repository.packages()
         application.update(packages)