Also some corrections for tests to make it work on different machines.

tests/templates/test_template_executor.py

@@ -576,6 +576,7 @@ class TestTemplateExecutor:
     def test_if_the_remove_directory_method_s_input_is_a_path_to_an_existing_empty_directory__the_method_will_remove_the_directory(self):
         target_path = join_paths(CHROOT_PATH,
                                  '/etc/remove_dir_testfiles/dir_0')
+        os.remove(os.path.join(target_path, 'file'))
 
         template_executor._remove_directory(target_path)
         assert not os.path.exists(target_path)
@@ -1079,6 +1080,7 @@ class TestTemplateExecutor:
         target_path = join_paths(
                                 CHROOT_PATH,
                                 '/etc/append_replace_dir_testfiles/dir_2')
+        os.remove(os.path.join(target_path, 'file'))
         parameters_object = ParametersContainer({'package': test_package_name,
                                                  'append': 'replace'})
         template_wrapper = TemplateWrapper(