feat: token_manager detect file change

tests/test_server.py

@@ -53,6 +53,7 @@ class TestStaplerServer(BaseTestCase):
 
     def test_run_http(self) -> None:
         self.server.params = Parameters(https=False, with_certificates=False)
+        self.token_manager.detect_file_change.side_effect = KeyboardInterrupt
         with (
             self.mock_call(self.registry.load_pages),
             self.mock_call(self.data_dir.init),
@@ -62,8 +63,10 @@ class TestStaplerServer(BaseTestCase):
             self.seal_mocks(),
         ):
             self.assertEqual(self.server.run(), 0)
+        self.token_manager.detect_file_change.assert_called_once()
 
     def test_run_https_fail(self) -> None:
+        self.token_manager.detect_file_change.side_effect = KeyboardInterrupt
         with (
             self.mock_call(self.registry.load_pages),
             self.mock_call(self.registry.get_hosts, [], []),
@@ -76,8 +79,10 @@ class TestStaplerServer(BaseTestCase):
             self.seal_mocks(),
         ):
             self.assertEqual(self.server.run(), 0)
+        self.token_manager.detect_file_change.assert_called_once()
 
     def test_run_https(self) -> None:
+        self.token_manager.detect_file_change.side_effect = KeyboardInterrupt
         with (
             self.mock_call(self.registry.load_pages),
             self.mock_call(self.registry.get_hosts, [], []),
@@ -96,3 +101,4 @@ class TestStaplerServer(BaseTestCase):
             self.seal_mocks(self.context_mock),
         ):
             self.assertEqual(self.server.run(), 0)
+        self.token_manager.detect_file_change.assert_called_once()

tests/test_token_manager.py

@@ -119,6 +119,21 @@ class TestTokenManager(BaseTestCase):
         ):
             self.token_manager.set_token("test_1", "secret")
 
+    def test_detect_file_change(self) -> None:
+        self.seal_mocks()
+        self.token_manager.detect_file_change()
+        self.assert_file_content(self.tmp_tokens_file, self.SALT_HASH)
+        self.assertEqual(self.tmp_tokens_file.stat().st_mode, 0o100600)
+        self.assertListEqual(self.token_manager.token_hashes, [])
+
+    def test_detect_file_change_nothing(self) -> None:
+        with self.tmp_tokens_file.open(mode="w") as file:
+            file.write(self.SALT_HASH + "\n" + self.SECRET_HASH)
+        self.token_manager.last_file_change = self.tmp_tokens_file.stat().st_mtime
+        self.seal_mocks()
+        self.token_manager.detect_file_change()
+        self.assertListEqual(self.token_manager.token_hashes, [])
+
     @unittest.mock.patch("secrets.token_hex")
     def test_new_token(self, mock_token_hex: unittest.mock.Mock) -> None:
         mock_token_hex.return_value = "secret"