rework-test-to-not-use-mock.patch

diff --git a/convert2rhel/unit_tests/logger_test.py b/convert2rhel/unit_tests/logger_test.py
index 1679f66..78477cc 100644
--- a/convert2rhel/unit_tests/logger_test.py
+++ b/convert2rhel/unit_tests/logger_test.py
@@ -119,20 +119,29 @@ def test_logger_custom_logger(tmpdir, caplog):
         ("convert2rhel.log", True, False, True),
     ),
 )
[email protected]("os.stat")
-def test_archive_old_logger_files(os_stat, log_name, path_exists, is_dir, exception, monkeypatch, caplog):
-    path_exists_mock = mock.MagicMock(return_value=path_exists)
-    is_dir_mock = mock.MagicMock(return_value=is_dir)
-    shutil_mock = mock.MagicMock(return_value=None)
+def test_archive_old_logger_files(log_name, path_exists, is_dir, exception, tmpdir, caplog):
 
-    monkeypatch.setattr(os.path, "exists", value=path_exists_mock)
-    monkeypatch.setattr(os.path, "isdir", value=is_dir_mock)
-    monkeypatch.setattr(shutil, "copyfile", value=shutil_mock)
+    archive_dir = os.path.join(tmpdir, "archive")
+    log_file = os.path.join(tmpdir, log_name)
+    test_data = "test data\n"
 
-    os_stat.return_value.st_mtime_ns = 1234
+    # Test that we error when the archive_dir is a file.
+    if not is_dir:
+        open(archive_dir, "w").write("\n")
+
+    # Test that the current log file can either exist or not exist
+    if path_exists:
+        open(log_file, "w").write(test_data)
 
     if exception:
         with pytest.raises(IOError):
-            logger_module.archive_old_logger_files(log_name)
+            logger_module.archive_old_logger_files(log_name, log_dir=tmpdir)
     else:
-        assert logger_module.archive_old_logger_files(log_name) is None
+        logger_module.archive_old_logger_files(log_name, log_dir=tmpdir)
+        if path_exists:
+            assert "archive" in os.listdir(tmpdir)
+
+            archive_files = os.listdir(archive_dir)
+            assert len(archive_files) == 1
+            with open(os.path.join(archive_dir, archive_files[0])) as archive_f:
+                assert archive_f.read() == test_data