diff --git a/tests/test_account.py b/tests/test_account.py
index 174eab3..1f87ddd 100644
--- a/tests/test_account.py
+++ b/tests/test_account.py
@@ -547,8 +547,8 @@ class AccountTestCase(unittest.TestCase):
         :return: None.
         """
         from accounting.models import Account
-        editor_username, editor2_username = "editor", "editor2"
-        client, csrf_token = get_client(self.app, editor2_username)
+        editor_username, admin_username = "editor", "admin"
+        client, csrf_token = get_client(self.app, admin_username)
         detail_uri: str = f"{PREFIX}/{CASH.code}"
         update_uri: str = f"{PREFIX}/{CASH.code}/update"
         account: Account
@@ -571,7 +571,7 @@ class AccountTestCase(unittest.TestCase):
             self.assertEqual(account.created_by.username,
                              editor_username)
             self.assertEqual(account.updated_by.username,
-                             editor2_username)
+                             admin_username)
 
     def test_l10n(self) -> None:
         """Tests the localization.
diff --git a/tests/test_currency.py b/tests/test_currency.py
index 6da5e96..1dc47c4 100644
--- a/tests/test_currency.py
+++ b/tests/test_currency.py
@@ -471,8 +471,8 @@ class CurrencyTestCase(unittest.TestCase):
         :return: None.
         """
         from accounting.models import Currency
-        editor_username, editor2_username = "editor", "editor2"
-        client, csrf_token = get_client(self.app, editor2_username)
+        editor_username, admin_username = "editor", "admin"
+        client, csrf_token = get_client(self.app, admin_username)
         detail_uri: str = f"{PREFIX}/{USD.code}"
         update_uri: str = f"{PREFIX}/{USD.code}/update"
         currency: Currency
@@ -493,7 +493,7 @@ class CurrencyTestCase(unittest.TestCase):
         with self.app.app_context():
             currency = db.session.get(Currency, USD.code)
             self.assertEqual(currency.created_by.username, editor_username)
-            self.assertEqual(currency.updated_by.username, editor2_username)
+            self.assertEqual(currency.updated_by.username, admin_username)
 
     def test_api_exists(self) -> None:
         """Tests the API to check if a code exists.
diff --git a/tests/test_journal_entry.py b/tests/test_journal_entry.py
index 4ec8799..31ea809 100644
--- a/tests/test_journal_entry.py
+++ b/tests/test_journal_entry.py
@@ -537,8 +537,8 @@ class CashReceiptJournalEntryTestCase(unittest.TestCase):
         from accounting.models import JournalEntry
         journal_entry_id: int \
             = add_journal_entry(self.client, self.__get_add_form())
-        editor_username, editor2_username = "editor", "editor2"
-        client, csrf_token = get_client(self.app, editor2_username)
+        editor_username, admin_username = "editor", "admin"
+        client, csrf_token = get_client(self.app, admin_username)
         detail_uri: str = f"{PREFIX}/{journal_entry_id}?next=%2F_next"
         update_uri: str = f"{PREFIX}/{journal_entry_id}/update"
         journal_entry: JournalEntry
@@ -562,7 +562,7 @@ class CashReceiptJournalEntryTestCase(unittest.TestCase):
             self.assertEqual(journal_entry.created_by.username,
                              editor_username)
             self.assertEqual(journal_entry.updated_by.username,
-                             editor2_username)
+                             admin_username)
 
     def test_delete(self) -> None:
         """Tests to delete a journal entry.
@@ -1163,8 +1163,8 @@ class CashDisbursementJournalEntryTestCase(unittest.TestCase):
         from accounting.models import JournalEntry
         journal_entry_id: int \
             = add_journal_entry(self.client, self.__get_add_form())
-        editor_username, editor2_username = "editor", "editor2"
-        client, csrf_token = get_client(self.app, editor2_username)
+        editor_username, admin_username = "editor", "admin"
+        client, csrf_token = get_client(self.app, admin_username)
         detail_uri: str = f"{PREFIX}/{journal_entry_id}?next=%2F_next"
         update_uri: str = f"{PREFIX}/{journal_entry_id}/update"
         journal_entry: JournalEntry
@@ -1188,7 +1188,7 @@ class CashDisbursementJournalEntryTestCase(unittest.TestCase):
             self.assertEqual(journal_entry.created_by.username,
                              editor_username)
             self.assertEqual(journal_entry.updated_by.username,
-                             editor2_username)
+                             admin_username)
 
     def test_delete(self) -> None:
         """Tests to delete a journal entry.
@@ -1837,8 +1837,8 @@ class TransferJournalEntryTestCase(unittest.TestCase):
         from accounting.models import JournalEntry
         journal_entry_id: int \
             = add_journal_entry(self.client, self.__get_add_form())
-        editor_username, editor2_username = "editor", "editor2"
-        client, csrf_token = get_client(self.app, editor2_username)
+        editor_username, admin_username = "editor", "admin"
+        client, csrf_token = get_client(self.app, admin_username)
         detail_uri: str = f"{PREFIX}/{journal_entry_id}?next=%2F_next"
         update_uri: str = f"{PREFIX}/{journal_entry_id}/update"
         journal_entry: JournalEntry
@@ -1862,7 +1862,7 @@ class TransferJournalEntryTestCase(unittest.TestCase):
             self.assertEqual(journal_entry.created_by.username,
                              editor_username)
             self.assertEqual(journal_entry.updated_by.username,
-                             editor2_username)
+                             admin_username)
 
     def test_save_as_receipt(self) -> None:
         """Tests to save a transfer journal entry as a cash receipt journal
diff --git a/tests/test_option.py b/tests/test_option.py
index 620bac5..8af4341 100644
--- a/tests/test_option.py
+++ b/tests/test_option.py
@@ -67,7 +67,7 @@ class OptionTestCase(unittest.TestCase):
             self.assertEqual(result.exit_code, 0)
             Option.query.delete()
 
-        self.client, self.csrf_token = get_client(self.app, "editor")
+        self.client, self.csrf_token = get_client(self.app, "admin")
         self.data: TestData = TestData(self.app, self.client, self.csrf_token)
 
     def test_nobody(self) -> None:
@@ -104,12 +104,12 @@ class OptionTestCase(unittest.TestCase):
         response = client.post(UPDATE_URI, data=self.__get_form(csrf_token))
         self.assertEqual(response.status_code, 403)
 
-    def test_editor2(self) -> None:
-        """Test the permission as non-administrator.
+    def test_editor(self) -> None:
+        """Test the permission as editor.
 
         :return: None.
         """
-        client, csrf_token = get_client(self.app, "editor2")
+        client, csrf_token = get_client(self.app, "editor")
         response: httpx.Response
 
         response = client.get(DETAIL_URI)
@@ -121,7 +121,7 @@ class OptionTestCase(unittest.TestCase):
         response = client.post(UPDATE_URI, data=self.__get_form(csrf_token))
         self.assertEqual(response.status_code, 403)
 
-    def test_editor(self) -> None:
+    def test_admin(self) -> None:
         """Test the permission as administrator.
 
         :return: None.
@@ -343,7 +343,7 @@ class OptionTestCase(unittest.TestCase):
         """
         from accounting.models import Option
         from accounting.utils.user import get_user_pk
-        editor_username, editor2_username = "editor", "editor2"
+        admin_username, editor_username = "admin", "editor"
         option: Option | None
         response: httpx.Response
 
@@ -352,11 +352,11 @@ class OptionTestCase(unittest.TestCase):
         self.assertEqual(response.headers["Location"], DETAIL_URI)
 
         with self.app.app_context():
-            editor2_pk: int = get_user_pk(editor2_username)
+            editor_pk: int = get_user_pk(editor_username)
             option = db.session.get(Option, "recurring")
             self.assertIsNotNone(option)
-            option.created_by_id = editor2_pk
-            option.updated_by_id = editor2_pk
+            option.created_by_id = editor_pk
+            option.updated_by_id = editor_pk
             db.session.commit()
 
         form: dict[str, str] = self.__get_form()
@@ -371,8 +371,8 @@ class OptionTestCase(unittest.TestCase):
         with self.app.app_context():
             option = db.session.get(Option, "recurring")
             self.assertIsNotNone(option)
-            self.assertEqual(option.created_by.username, editor2_username)
-            self.assertEqual(option.updated_by.username, editor_username)
+            self.assertEqual(option.created_by.username, editor_username)
+            self.assertEqual(option.updated_by.username, admin_username)
 
     def __get_form(self, csrf_token: str | None = None) -> dict[str, str]:
         """Returns the option form.
diff --git a/tests/test_site/__init__.py b/tests/test_site/__init__.py
index 757d4b0..e1550dc 100644
--- a/tests/test_site/__init__.py
+++ b/tests/test_site/__init__.py
@@ -72,15 +72,15 @@ def create_app(is_testing: bool = False) -> Flask:
         def can_view(self) -> bool:
             return auth.current_user() is not None \
                 and auth.current_user().username in ["viewer", "editor",
-                                                     "editor2"]
+                                                     "admin"]
 
         def can_edit(self) -> bool:
             return auth.current_user() is not None \
-                and auth.current_user().username in ["editor", "editor2"]
+                and auth.current_user().username in ["editor", "admin"]
 
         def can_admin(self) -> bool:
             return auth.current_user() is not None \
-                and auth.current_user().username == "editor"
+                and auth.current_user().username == "admin"
 
         @property
         def cls(self) -> t.Type[auth.User]:
@@ -112,7 +112,7 @@ def init_db_command() -> None:
     """Initializes the database."""
     db.create_all()
     from .auth import User
-    for username in ["viewer", "editor", "editor2", "nobody"]:
+    for username in ["viewer", "editor", "admin", "nobody"]:
         if User.query.filter(User.username == username).first() is None:
             db.session.add(User(username=username))
     db.session.commit()
diff --git a/tests/test_site/auth.py b/tests/test_site/auth.py
index de8374c..7bd849c 100644
--- a/tests/test_site/auth.py
+++ b/tests/test_site/auth.py
@@ -58,8 +58,8 @@ def login() -> redirect:
 
     :return: The redirection to the home page.
     """
-    if request.form.get("username") not in ["viewer", "editor", "editor2",
-                                            "nobody"]:
+    if request.form.get("username") not in {"viewer", "editor", "admin",
+                                            "nobody"}:
         return redirect(url_for("auth.login"))
     session["user"] = request.form.get("username")
     return redirect(url_for("home.home"))
diff --git a/tests/test_site/templates/login.html b/tests/test_site/templates/login.html
index edf20eb..651d648 100644
--- a/tests/test_site/templates/login.html
+++ b/tests/test_site/templates/login.html
@@ -29,7 +29,7 @@ First written: 2023/1/27
   <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
   <button class="btn btn-primary" type="submit" name="username" value="viewer">{{ _("Viewer") }}</button>
   <button class="btn btn-primary" type="submit" name="username" value="editor">{{ _("Editor") }}</button>
-  <button class="btn btn-primary" type="submit" name="username" value="editor2">{{ _("Editor2") }}</button>
+  <button class="btn btn-primary" type="submit" name="username" value="admin">{{ _("Administrator") }}</button>
   <button class="btn btn-primary" type="submit" name="username" value="nobody">{{ _("Nobody") }}</button>
 </form>