fixing for lint

Author: BSd3v

tests/integration/callbacks/test_api_callback.py

@@ -1,4 +1,3 @@
-
 from dash import (
     Dash,
     Input,
@@ -10,16 +9,21 @@
 import json
 from flask import jsonify
 
-test_string = ('{"step_0": "Data fetched - 1", "step_1": "Data fetched - 1", "step_2": "Data fetched - 1", '
-               '"step_3": "Data fetched - 1", "step_4": "Data fetched - 1"}')
+test_string = (
+    '{"step_0": "Data fetched - 1", "step_1": "Data fetched - 1", "step_2": "Data fetched - 1", '
+    '"step_3": "Data fetched - 1", "step_4": "Data fetched - 1"}'
+)
+
 
 def test_apib001_api_callback(dash_duo):
 
     app = Dash(__name__)
-    app.layout = html.Div([
-        html.Button("Slow Callback", id="slow-btn"),
-        html.Div(id="slow-output"),
-    ])
+    app.layout = html.Div(
+        [
+            html.Button("Slow Callback", id="slow-btn"),
+            html.Div(id="slow-output"),
+        ]
+    )
 
     def get_data(n_clicks):
         # Simulate an async data fetch
@@ -29,12 +33,12 @@ def get_data(n_clicks):
         Output("slow-output", "children"),
         Input("slow-btn", "n_clicks"),
         prevent_initial_call=True,
-        api_endpoint='/api/slow_callback',  # Example API path for the slow callback
+        api_endpoint="/api/slow_callback",  # Example API path for the slow callback
     )
     def slow_callback(n_clicks):
         data = {}
         for i in range(5):
-            data[f'step_{i}'] = get_data(n_clicks)
+            data[f"step_{i}"] = get_data(n_clicks)
         ret = f"{json.dumps(data)}"
         if ctx:
             return ret
@@ -46,8 +50,10 @@ def slow_callback(n_clicks):
 
     dash_duo.wait_for_element("#slow-btn").click()
     dash_duo.wait_for_text_to_equal("#slow-output", test_string)
-    r = requests.post(dash_duo.server_url +'/api/slow_callback',
-                  json={'n_clicks': 1},
-                  headers={'Content-Type': 'application/json'})
+    r = requests.post(
+        dash_duo.server_url + "/api/slow_callback",
+        json={"n_clicks": 1},
+        headers={"Content-Type": "application/json"},
+    )
     assert r.status_code == 200
     assert r.json() == test_string