tests: backup: Even more! Now with deletion of tested tmp!

Now we also test for everything in backup.py! EVERYTHING!
We even delete the old file that we ourselfs created to test the
export/backup function.

private/test/test_backup.py

@@ -1,32 +1,35 @@
+import os
+import unittest
 import sys
-
+import csv
+import backup
 sys.path.append('..')
-
-import unittest
 from ListUsers import ListUsers
-import backup
 
 
 class TestBackup(unittest.TestCase):
-    test_csv: str = "test/testbackup.csv"
+    test_backup_csv: str = "test/testbackup.csv"
     test_db: str = "./test/applications.sqlite"
 
     def setUp(self):
         try:
             self.fetch = ListUsers(self.test_db, unapproved=False, approved=False).get_fetch()
-            self.Backup = backup.Backup(self.test_csv)
+            self.Backup = backup.Backup(self.test_backup_csv)
         except Exception as general_setup:
             self.fail(f"Failed setup already! {general_setup}")
 
     def test_set_dialect(self):
-        pass
+        self.Backup.set_dialect("excel")
+        self.assertEqual(self.Backup.dialect, "excel")
 
     def test_set_quoting(self):
-        pass
+        self.Backup.set_quoting(csv.QUOTE_NONNUMERIC)
+        self.assertEqual(self.Backup.quoting, csv.QUOTE_NONNUMERIC)
 
     def test_set_filename(self):
-        self.Backup.set_filename(self.test_csv)
-        self.assertEqual(self.Backup.filename, self.test_csv)
+        self.Backup.set_filename(self.test_backup_csv)
+        self.assertEqual(self.Backup.filename, self.test_backup_csv)
+        self.Backup.set_field_names(self.fetch[0].keys())
 
     def test_set_field_names(self):
         # @TODO: Dynamic! Having a test scheme from which we setup our test is beneficial here, also values
@@ -36,7 +39,11 @@ class TestBackup(unittest.TestCase):
 
     def test_backup_to_file(self):
         try:
+            self.Backup.set_field_names(self.fetch[0].keys())
             self.Backup.backup_to_file(self.fetch)
+            self.assertTrue(os.path.exists(self.test_backup_csv),
+                            "Assert True that file exists and was written")
+            os.unlink(os.path.realpath(self.test_backup_csv))
         except IOError as io_error:
             self.fail(io_error)