diff --git a/tests/test_avg_ping.py b/tests/test_avg_ping.py
new file mode 100644
index 0000000..fc9b3be
--- /dev/null
+++ b/tests/test_avg_ping.py
@@ -0,0 +1,13 @@
+import unittest
+
+from uptime_kuma_test_case import UptimeKumaTestCase
+
+
+class TestAvgPing(UptimeKumaTestCase):
+    def test_avg_ping(self):
+        self.add_monitor()
+        self.api.avg_ping()
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/tests/test_database.py b/tests/test_database.py
new file mode 100644
index 0000000..640b9ce
--- /dev/null
+++ b/tests/test_database.py
@@ -0,0 +1,16 @@
+import unittest
+
+from uptime_kuma_test_case import UptimeKumaTestCase
+
+
+class TestDatabase(UptimeKumaTestCase):
+    def test_get_database_size(self):
+        r = self.api.get_database_size()
+        self.assertIn("size", r)
+
+    def test_shrink_database(self):
+        self.api.shrink_database()
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/tests/test_monitor.py b/tests/test_monitor.py
index 8cc7d91..f438759 100644
--- a/tests/test_monitor.py
+++ b/tests/test_monitor.py
@@ -49,6 +49,9 @@ class TestMonitor(UptimeKumaTestCase):
         r = self.api.resume_monitor(monitor_id)
         self.assertEqual(r["msg"], "Resumed Successfully.")
 
+        # get monitor beats
+        self.api.get_monitor_beats(monitor_id, 6)
+
         # delete monitor
         r = self.api.delete_monitor(monitor_id)
         self.assertEqual(r["msg"], "Deleted Successfully.")
diff --git a/tests/test_settings.py b/tests/test_settings.py
index 2777d69..39179af 100644
--- a/tests/test_settings.py
+++ b/tests/test_settings.py
@@ -1,4 +1,5 @@
 import unittest
+import json
 
 from uptime_kuma_test_case import UptimeKumaTestCase
 
@@ -13,6 +14,32 @@ class TestSettings(UptimeKumaTestCase):
         settings = self.api.get_settings()
         self.assertEqual(settings["checkUpdate"], expected_check_update)
 
+    def test_change_password(self):
+        new_password = "321terces"
+
+        # change password
+        r = self.api.change_password(self.password, new_password)
+        self.assertEqual(r["msg"], "Password has been updated successfully.")
+
+        # check login
+        r = self.api.login(self.username, new_password)
+        self.assertIn("token", r)
+
+        # restore password
+        r = self.api.change_password(new_password, self.password)
+        self.assertEqual(r["msg"], "Password has been updated successfully.")
+
+    def test_upload_backup(self):
+        data = {
+            "version": "1.17.1",
+            "notificationList": [],
+            "monitorList": [],
+            "proxyList": []
+        }
+        data_str = json.dumps(data)
+        r = self.api.upload_backup(data_str, "overwrite")
+        self.assertEqual(r["msg"], "Backup successfully restored.")
+
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/test_uptime.py b/tests/test_uptime.py
new file mode 100644
index 0000000..c2dc23a
--- /dev/null
+++ b/tests/test_uptime.py
@@ -0,0 +1,13 @@
+import unittest
+
+from uptime_kuma_test_case import UptimeKumaTestCase
+
+
+class TestUptime(UptimeKumaTestCase):
+    def test_uptime(self):
+        self.add_monitor()
+        self.api.uptime()
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/uptime_kuma_api/api.py b/uptime_kuma_api/api.py
index 160e5aa..866d71d 100644
--- a/uptime_kuma_api/api.py
+++ b/uptime_kuma_api/api.py
@@ -788,7 +788,7 @@ class UptimeKumaApi(object):
             "newPassword": new_password,
         })
 
-    def upload_backup(self, json_data, import_handle: str):
+    def upload_backup(self, json_data, import_handle: str = "skip"):
         if import_handle not in ["overwrite", "skip", "keep"]:
             raise ValueError()
         return self._call('uploadBackup', (json_data, import_handle))