diff --git a/tests/mocked/test_databases.py b/tests/mocked/test_databases.py
index bf421fff..79e09ec8 100644
--- a/tests/mocked/test_databases.py
+++ b/tests/mocked/test_databases.py
@@ -1,4 +1,5 @@
 # pylint: disable=line-too-long
+# pylint: disable=too-many-lines
 """Mock tests for the databases API resource."""
 
 import responses
@@ -805,3 +806,211 @@ def test_databases_destroy_replica(mock_client: Client, mock_client_url):
     resp = mock_client.databases.destroy_replica(cluster_uuid, replica_name)
 
     assert resp is None
+
+
+@responses.activate
+def test_databases_patch_config(mock_client: Client, mock_client_url):
+    """Mocks the databases patch config operation."""
+
+    cluster_uuid = "9cc10173-e9ea-4176-9dbc-a4cee4c4ff30"
+
+    responses.add(
+        responses.PATCH,
+        f"{mock_client_url}/v2/databases/{cluster_uuid}/config",
+        status=200,
+    )
+
+    resp = mock_client.databases.patch_config(cluster_uuid, {"config": {}})
+
+    assert resp is None
+
+
+@responses.activate
+def test_databases_reset_auth(mock_client: Client, mock_client_url):
+    """Mocks the databases patch config operation."""
+
+    expected = {
+        "user": {"name": "app-01", "role": "normal", "password": "jge5lfxtzhx42iff"}
+    }
+    cluster_uuid = "9cc10173-e9ea-4176-9dbc-a4cee4c4ff30"
+    user_name = "app-01"
+
+    responses.add(
+        responses.POST,
+        f"{mock_client_url}/v2/databases/{cluster_uuid}/users/{user_name}/reset_auth",
+        json=expected,
+        status=200,
+    )
+
+    resp = mock_client.databases.reset_auth(
+        cluster_uuid,
+        user_name,
+        {"mysql_settings": {"auth_plugin": "caching_sha2_password"}},
+    )
+
+    assert expected == resp
+
+    user_name = "app-02"
+    expected = {
+        "user": {
+            "name": "app-02",
+            "role": "normal",
+            "password": "wv78n3zpz42xezdk",
+            "mysql_settings": {"auth_plugin": "mysql_native_password"},
+        }
+    }
+
+    responses.add(
+        responses.POST,
+        f"{mock_client_url}/v2/databases/{cluster_uuid}/users/{user_name}/reset_auth",
+        json=expected,
+        status=200,
+    )
+
+    resp = mock_client.databases.reset_auth(
+        cluster_uuid,
+        user_name,
+        {"mysql_settings": {"auth_plugin": "caching_sha2_password"}},
+    )
+
+    assert expected == resp
+
+
+@responses.activate
+def test_databases_update_cluster_size(mock_client: Client, mock_client_url):
+    """Mocks the databases patch config operation."""
+
+    cluster_uuid = "9cc10173-e9ea-4176-9dbc-a4cee4c4ff30"
+
+    responses.add(
+        responses.PUT,
+        f"{mock_client_url}/v2/databases/{cluster_uuid}/resize",
+        status=202,
+    )
+
+    resp = mock_client.databases.update_cluster_size(
+        cluster_uuid, {"size": "db-s-4vcpu-8gb", "num_nodes": 3}
+    )
+
+    assert resp is None
+
+
+@responses.activate
+def test_databases_update_firewall_rules(mock_client: Client, mock_client_url):
+    """Mocks the databases update firewall rules operation."""
+
+    cluster_uuid = "9cc10173-e9ea-4176-9dbc-a4cee4c4ff30"
+
+    responses.add(
+        responses.PUT,
+        f"{mock_client_url}/v2/databases/{cluster_uuid}/firewall",
+        status=204,
+    )
+
+    resp = mock_client.databases.update_firewall_rules(
+        cluster_uuid,
+        {
+            "rules": [
+                {"type": "ip_addr", "value": "192.168.1.1"},
+                {"type": "k8s", "value": "ff2a6c52-5a44-4b63-b99c-0e98e7a63d61"},
+                {"type": "droplet", "value": "163973392"},
+                {"type": "tag", "value": "backend"},
+            ]
+        },
+    )
+
+    assert resp is None
+
+
+@responses.activate
+def test_databases_update_maintenance_window(mock_client: Client, mock_client_url):
+    """Mocks the databases update firewall rules operation."""
+
+    cluster_uuid = "9cc10173-e9ea-4176-9dbc-a4cee4c4ff30"
+
+    responses.add(
+        responses.PUT,
+        f"{mock_client_url}/v2/databases/{cluster_uuid}/maintenance",
+        status=204,
+    )
+
+    resp = mock_client.databases.update_maintenance_window(
+        cluster_uuid, {"day": "tuesday", "hour": "14:00"}
+    )
+
+    assert resp is None
+
+
+@responses.activate
+def test_databases_update_online_migration(mock_client: Client, mock_client_url):
+    """Mocks the databases update firewall rules operation."""
+
+    expected = {
+        "id": "77b28fc8-19ff-11eb-8c9c-c68e24557488",
+        "status": "running",
+        "created_at": "2020-10-29T15:57:38Z",
+    }
+
+    cluster_uuid = "9cc10173-e9ea-4176-9dbc-a4cee4c4ff30"
+
+    responses.add(
+        responses.PUT,
+        f"{mock_client_url}/v2/databases/{cluster_uuid}/online-migration",
+        json=expected,
+        status=200,
+    )
+
+    resp = mock_client.databases.update_online_migration(
+        cluster_uuid,
+        {
+            "source": {
+                "host": "source-do-user-6607903-0.b.db.ondigitalocean.com",
+                "dbname": "defaultdb",
+                "port": 25060,
+                "username": "doadmin",
+                "password": "paakjnfe10rsrsmf",
+            },
+            "disable_ssl": False,
+        },
+    )
+
+    assert expected == resp
+
+
+@responses.activate
+def test_databases_update_region(mock_client: Client, mock_client_url):
+    """Mocks the databases update firewall rules operation."""
+
+    cluster_uuid = "9cc10173-e9ea-4176-9dbc-a4cee4c4ff30"
+
+    responses.add(
+        responses.PUT,
+        f"{mock_client_url}/v2/databases/{cluster_uuid}/migrate",
+        status=202,
+    )
+
+    resp = mock_client.databases.update_region(cluster_uuid, {"region": "lon1"})
+
+    assert resp is None
+
+
+@responses.activate
+def test_databases_update_sql_mode(mock_client: Client, mock_client_url):
+    """Mocks the databases update firewall rules operation."""
+
+    cluster_uuid = "9cc10173-e9ea-4176-9dbc-a4cee4c4ff30"
+
+    responses.add(
+        responses.PUT,
+        f"{mock_client_url}/v2/databases/{cluster_uuid}/sql_mode",
+        status=204,
+    )
+
+    resp = mock_client.databases.update_sql_mode(
+        cluster_uuid,
+        {
+            "sql_mode": "ANSI,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE"
+        },
+    )
+
+    assert resp is None