content: import json
  
  import flaky
  
  from selenium.webdriver.common.keys import Keys
  
  from dash import Dash, html, dcc, Input, Output, State, ALL, Patch, set_props
  from dash.testing.wait import until
  
  
  @flaky.flaky(max_runs=3)
  def test_pch001_patch_operations(dash_duo):
  
      app = Dash(__name__)
  
      app.layout = html.Div(
          [
              html.Div(
                  [
                      dcc.Input(id="set-value"),
                      html.Button("Set", id="set-btn"),
                  ]
              ),
              html.Div(
                  [
                      dcc.Input(id="append-value"),
                      html.Button("Append", id="append-btn"),
                  ]
              ),
              html.Div(
                  [
                      dcc.Input(id="prepend-value"),
                      html.Button("prepend", id="prepend-btn"),
                  ]
              ),
              html.Div(
                  [
                      dcc.Input(id="insert-value"),
                      dcc.Input(id="insert-index", type="number", value=1),
                      html.Button("insert", id="insert-btn"),
                  ]
              ),
              html.Div(
                  [
                      dcc.Input(id="extend-value"),
                      html.Button("extend", id="extend-btn"),
                  ]
              ),
              html.Div(
                  [
                      dcc.Input(id="merge-value"),
                      html.Button("Merge", id="merge-btn"),
                  ]
              ),
              html.Button("Delete", id="delete-btn"),
              html.Button("Delete index", id="delete-index"),
              html.Button("Clear", id="clear-btn"),
              html.Button("Reverse", id="reverse-btn"),
              html.Button("Remove", id="remove-btn"),
              dcc.Store(
                  data={
                      "value": "unset",
                      "n_clicks": 0,
                      "array": ["initial"],
                      "delete": "Delete me",
                  },
                  id="store",
              ),
              html.Div(id="store-content"),
          ]
      )
  
      app.clientside_callback(
          "function(value) {return JSON.stringify(value)}",
          Output("store-content", "children"),
          Input("store", "data"),
      )
  
      @app.callback(
          Output("store", "data"),
          Input("set-btn", "n_clicks"),
          State("set-value", "value"),
          prevent_initial_call=True,
      )
      def on_click(_, value):
          p = Patch()
          p.value = value
          p.n_clicks += 1
  
          return p
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("append-btn", "n_clicks"),
          State("append-value", "value"),
          prevent_initial_call=True,
      )
      def on_click(_, value):
          p = Patch()
          p.array.append(value)
          p.n_clicks += 1
  
          return p
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("prepend-btn", "n_clicks"),
          State("prepend-value", "value"),
          prevent_initial_call=True,
      )
      def on_click(_, value):
          p = Patch()
          p.array.prepend(value)
          p.n_clicks += 1
  
          return p
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("extend-btn", "n_clicks"),
          State("extend-value", "value"),
          prevent_initial_call=True,
      )
      def on_click(_, value):
          p = Patch()
          p.array.extend([value])
          p.n_clicks += 1
  
          return p
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("merge-btn", "n_clicks"),
          State("merge-value", "value"),
          prevent_initial_call=True,
      )
      def on_click(_, value):
          p = Patch()
          p.update({"merged": value})
          p.n_clicks += 1
  
          return p
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("delete-btn", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_click(_):
          p = Patch()
          del p.delete
          return p
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("insert-btn", "n_clicks"),
          State("insert-value", "value"),
          State("insert-index", "value"),
          prevent_initial_call=True,
      )
      def on_insert(_, value, index):
          p = Patch()
          p.array.insert(index, value)
  
          return p
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("delete-index", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_click(_):
          p = Patch()
          del p.array[1]
          del p.array[-2]
  
          return p
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("clear-btn", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_clear(_):
          p = Patch()
          p.array.clear()
  
          return p
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("reverse-btn", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_reverse(_):
          p = Patch()
          p.array.reverse()
  
          return p
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("remove-btn", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_remove(_):
          p = Patch()
          p.array.remove("initial")
          return p
  
      dash_duo.start_server(app)
  
      assert dash_duo.get_logs() == []
  
      def get_output():
          e = dash_duo.find_element("#store-content")
          return json.loads(e.text)
  
      _input = dash_duo.find_element("#set-value")
      _input.send_keys("Set Value")
      dash_duo.find_element("#set-btn").click()
  
      until(lambda: get_output().get("value") == "Set Value", 2)
  
      _input = dash_duo.find_element("#append-value")
      _input.send_keys("Append")
      dash_duo.find_element("#append-btn").click()
  
      until(lambda: get_output().get("array") == ["initial", "Append"], 2)
  
      _input = dash_duo.find_element("#prepend-value")
      _input.send_keys("Prepend")
      dash_duo.find_element("#prepend-btn").click()
  
      until(lambda: get_output().get("array") == ["Prepend", "initial", "Append"], 2)
  
      _input = dash_duo.find_element("#extend-value")
      _input.send_keys("Extend")
      dash_duo.find_element("#extend-btn").click()
  
      until(
          lambda: get_output().get("array") == ["Prepend", "initial", "Append", "Extend"],
          2,
      )
  
      undef = object()
      until(lambda: get_output().get("merged", undef) is undef, 2)
  
      _input = dash_duo.find_element("#merge-value")
      _input.send_keys("Merged")
      dash_duo.find_element("#merge-btn").click()
  
      until(lambda: get_output().get("merged") == "Merged", 2)
  
      until(lambda: get_output().get("delete") == "Delete me", 2)
  
      dash_duo.find_element("#delete-btn").click()
  
      until(lambda: get_output().get("delete", undef) is undef, 2)
  
      _input = dash_duo.find_element("#insert-value")
      _input.send_keys("Inserted")
      dash_duo.find_element("#insert-btn").click()
  
      until(
          lambda: get_output().get("array")
          == [
              "Prepend",
              "Inserted",
              "initial",
              "Append",
              "Extend",
          ],
          2,
      )
  
      _input.send_keys(" with negative index")
      _input = dash_duo.find_element("#insert-index")
      _input.send_keys(Keys.BACKSPACE)
      _input.send_keys("-1")
      dash_duo.find_element("#insert-btn").click()
  
      until(
          lambda: get_output().get("array")
          == [
              "Prepend",
              "Inserted",
              "initial",
              "Append",
              "Inserted with negative index",
              "Extend",
          ],
          2,
      )
  
      dash_duo.find_element("#delete-index").click()
      until(
          lambda: get_output().get("array")
          == [
              "Prepend",
              "initial",
              "Append",
              "Extend",
          ],
          2,
      )
  
      dash_duo.find_element("#reverse-btn").click()
      until(
          lambda: get_output().get("array")
          == [
              "Extend",
              "Append",
              "initial",
              "Prepend",
          ],
          2,
      )
  
      dash_duo.find_element("#remove-btn").click()
      until(
          lambda: get_output().get("array")
          == [
              "Extend",
              "Append",
              "Prepend",
          ],
          2,
      )
  
      dash_duo.find_element("#clear-btn").click()
      until(lambda: get_output()["array"] == [], 2)
  
  
  def test_pch002_patch_app_pmc_callbacks(dash_duo):
      app = Dash(__name__)
  
      app.layout = html.Div(
          [
              html.Button("Click", id="click"),
              html.Div(id={"type": "output", "index": 0}, className="first"),
              html.Div(id={"type": "output", "index": 1}, className="second"),
          ]
      )
  
      @app.callback(
          Output({"type": "output", "index": ALL}, "children"), Input("click", "n_clicks")
      )
      def on_click(n_clicks):
          if n_clicks is None:
              return ["Foo", "Bar"]
          p1 = Patch()
          p2 = Patch()
  
          p1.append("Bar")
          p2.prepend("Foo")
  
          return [p1, p2]
  
      dash_duo.start_server(app)
  
      dash_duo.find_element("#click").click()
      dash_duo.wait_for_text_to_equal(".first", "FooBar")
      dash_duo.wait_for_text_to_equal(".second", "FooBar")
  
  
  def test_pch003_patch_children(dash_duo):
  
      app = Dash(__name__)
      app.layout = html.Div(
          [
              html.Div(
                  [
                      dcc.Input(value="", id="children-value"),
                      html.Button("Add", id="add-children"),
                  ]
              ),
              html.Div([html.Div("init", id="initial")], id="output"),
          ]
      )
  
      @app.callback(
          Output("output", "children"),
          Input("add-children", "n_clicks"),
          State("children-value", "value"),
          prevent_initial_call=True,
      )
      def on_click(_, value):
          p = Patch()
          p.append(html.Div(value, id=value))
  
          return p
  
      dash_duo.start_server(app)
  
      _input = dash_duo.find_element("#children-value")
      _input.send_keys("new-child")
      dash_duo.find_element("#add-children").click()
  
      dash_duo.wait_for_text_to_equal("#new-child", "new-child")
      dash_duo.wait_for_text_to_equal("#initial", "init")
  
  
  def test_pch004_duplicate_output_restart(dash_duo_mp):
      # Duplicate output ids should be the same between restarts for the same ids
      def create_app():
          app = Dash(__name__)
          app.layout = html.Div(
              [
                  html.Button("Click 1", id="click1"),
                  html.Button("Click 2", id="click2"),
                  html.Div(id="output"),
              ]
          )
  
          @app.callback(
              Output("output", "children", allow_duplicate=True),
              Input("click1", "n_clicks"),
              prevent_initial_call=True,
          )
          def on_click(_):
              return "click 1"
  
          @app.callback(
              Output("output", "children", allow_duplicate=True),
              Input("click2", "n_clicks"),
              prevent_initial_call=True,
          )
          def on_click(_):
              return "click 2"
  
          return app
  
      dash_duo_mp.start_server(create_app())
  
      dash_duo_mp.wait_for_element("#click1").click()
      dash_duo_mp.wait_for_text_to_equal("#output", "click 1")
  
      dash_duo_mp.wait_for_element("#click2").click()
      dash_duo_mp.wait_for_text_to_equal("#output", "click 2")
  
      dash_duo_mp.server.stop()
  
      dash_duo_mp.start_server(create_app(), navigate=False)
      dash_duo_mp.wait_for_element("#click1").click()
      dash_duo_mp.wait_for_text_to_equal("#output", "click 1")
  
      dash_duo_mp.wait_for_element("#click2").click()
      dash_duo_mp.wait_for_text_to_equal("#output", "click 2")
  
  
  def test_pch005_clientside_duplicate(dash_duo):
      app = Dash(__name__)
  
      app.layout = html.Div(
          [
              html.Button("Click 1", id="click1"),
              html.Button("Click 2", id="click2"),
              html.Div("initial", id="output"),
          ]
      )
  
      app.clientside_callback(
          "function() { return 'click1';}",
          Output("output", "children", allow_duplicate=True),
          Input("click1", "n_clicks"),
          prevent_initial_call=True,
      )
      app.clientside_callback(
          "function() { return 'click2';}",
          Output("output", "children", allow_duplicate=True),
          Input("click2", "n_clicks"),
          prevent_initial_call=True,
      )
      dash_duo.start_server(app)
  
      dash_duo.find_element("#click1").click()
      dash_duo.wait_for_text_to_equal("#output", "click1")
  
      dash_duo.find_element("#click2").click()
      dash_duo.wait_for_text_to_equal("#output", "click2")
  
  
  def test_pch006_base_operators(dash_duo):
      app = Dash()
  
      app.layout = [
          dcc.Store(data=2, id="store"),
          html.Button("add-one", id="add-one"),
          html.Button("remove-one", id="remove-one"),
          html.Button("mul-two", id="mul-two"),
          html.Button("div-two", id="div-two"),
          html.Button("merge", id="merge"),
          dcc.Store(data={"initial": "initial"}, id="dict-store"),
          html.Div(id="store-output"),
          html.Div(id="dict-store-output"),
      ]
  
      @app.callback(
          Output("store", "data"), Input("add-one", "n_clicks"), prevent_initial_call=True
      )
      def on_add(_):
          patched = Patch()
          patched += 1
          return patched
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("remove-one", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_remove(_):
          patched = Patch()
          patched -= 1
          return patched
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("mul-two", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_mul(_):
          patched = Patch()
          patched *= 2
          return patched
  
      @app.callback(
          Output("store", "data", allow_duplicate=True),
          Input("div-two", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_div(_):
          patched = Patch()
          patched /= 2
          return patched
  
      @app.callback(
          Output("dict-store", "data", allow_duplicate=True),
          Input("merge", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_merge(_):
          patched = Patch()
          patched |= {"merged": "merged"}
          return patched
  
      app.clientside_callback(
          "data => data", Output("store-output", "children"), Input("store", "data")
      )
      app.clientside_callback(
          "data => JSON.stringify(data)",
          Output("dict-store-output", "children"),
          Input("dict-store", "data"),
      )
  
      dash_duo.start_server(app)
  
      dash_duo.find_element("#add-one").click()
      dash_duo.wait_for_text_to_equal("#store-output", "3")
  
      dash_duo.find_element("#remove-one").click()
      dash_duo.wait_for_text_to_equal("#store-output", "2")
  
      dash_duo.find_element("#mul-two").click()
      dash_duo.wait_for_text_to_equal("#store-output", "4")
  
      dash_duo.find_element("#div-two").click()
      dash_duo.wait_for_text_to_equal("#store-output", "2")
  
      dash_duo.find_element("#merge").click()
      dash_duo.wait_for_text_to_equal(
          "#dict-store-output", '{"initial":"initial","merged":"merged"}'
      )
  
  
  @flaky.flaky(max_runs=3)
  def test_pch007_patch_operations_side_updates(dash_duo):
  
      app = Dash(__name__)
  
      app.layout = html.Div(
          [
              html.Div(
                  [
                      dcc.Input(id="set-value"),
                      html.Button("Set", id="set-btn"),
                  ]
              ),
              html.Div(
                  [
                      dcc.Input(id="append-value"),
                      html.Button("Append", id="append-btn"),
                  ]
              ),
              html.Div(
                  [
                      dcc.Input(id="prepend-value"),
                      html.Button("prepend", id="prepend-btn"),
                  ]
              ),
              html.Div(
                  [
                      dcc.Input(id="insert-value"),
                      dcc.Input(id="insert-index", type="number", value=1),
                      html.Button("insert", id="insert-btn"),
                  ]
              ),
              html.Div(
                  [
                      dcc.Input(id="extend-value"),
                      html.Button("extend", id="extend-btn"),
                  ]
              ),
              html.Div(
                  [
                      dcc.Input(id="merge-value"),
                      html.Button("Merge", id="merge-btn"),
                  ]
              ),
              html.Button("Delete", id="delete-btn"),
              html.Button("Delete index", id="delete-index"),
              html.Button("Clear", id="clear-btn"),
              html.Button("Reverse", id="reverse-btn"),
              html.Button("Remove", id="remove-btn"),
              dcc.Store(
                  data={
                      "value": "unset",
                      "n_clicks": 0,
                      "array": ["initial"],
                      "delete": "Delete me",
                  },
                  id="store",
              ),
              html.Div(id="store-content"),
          ]
      )
  
      app.clientside_callback(
          "function(value) {return JSON.stringify(value)}",
          Output("store-content", "children"),
          Input("store", "data"),
      )
  
      @app.callback(
          Input("set-btn", "n_clicks"),
          State("set-value", "value"),
          prevent_initial_call=True,
      )
      def on_click(_, value):
          p = Patch()
          p.value = value
          p.n_clicks += 1
  
          set_props("store", {"data": p})
  
      @app.callback(
          Input("append-btn", "n_clicks"),
          State("append-value", "value"),
          prevent_initial_call=True,
      )
      def on_click(_, value):
          p = Patch()
          p.array.append(value)
          p.n_clicks += 1
  
          set_props("store", {"data": p})
  
      @app.callback(
          Input("prepend-btn", "n_clicks"),
          State("prepend-value", "value"),
          prevent_initial_call=True,
      )
      def on_click(_, value):
          p = Patch()
          p.array.prepend(value)
          p.n_clicks += 1
  
          set_props("store", {"data": p})
  
      @app.callback(
          Input("extend-btn", "n_clicks"),
          State("extend-value", "value"),
          prevent_initial_call=True,
      )
      def on_click(_, value):
          p = Patch()
          p.array.extend([value])
          p.n_clicks += 1
  
          set_props("store", {"data": p})
  
      @app.callback(
          Input("merge-btn", "n_clicks"),
          State("merge-value", "value"),
          prevent_initial_call=True,
      )
      def on_click(_, value):
          p = Patch()
          p.update({"merged": value})
          p.n_clicks += 1
  
          set_props("store", {"data": p})
  
      @app.callback(
          Input("delete-btn", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_click(_):
          p = Patch()
          del p.delete
          set_props("store", {"data": p})
  
      @app.callback(
          Input("insert-btn", "n_clicks"),
          State("insert-value", "value"),
          State("insert-index", "value"),
          prevent_initial_call=True,
      )
      def on_insert(_, value, index):
          p = Patch()
          p.array.insert(index, value)
  
          set_props("store", {"data": p})
  
      @app.callback(
          Input("delete-index", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_click(_):
          p = Patch()
          del p.array[1]
          del p.array[-2]
  
          set_props("store", {"data": p})
  
      @app.callback(
          Input("clear-btn", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_clear(_):
          p = Patch()
          p.array.clear()
  
          set_props("store", {"data": p})
  
      @app.callback(
          Input("reverse-btn", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_reverse(_):
          p = Patch()
          p.array.reverse()
  
          set_props("store", {"data": p})
  
      @app.callback(
          Input("remove-btn", "n_clicks"),
          prevent_initial_call=True,
      )
      def on_remove(_):
          p = Patch()
          p.array.remove("initial")
          set_props("store", {"data": p})
  
      dash_duo.start_server(app)
  
      assert dash_duo.get_logs() == []
  
      def get_output():
          e = dash_duo.find_element("#store-content")
          return json.loads(e.text)
  
      _input = dash_duo.find_element("#set-value")
      _input.send_keys("Set Value")
      dash_duo.find_element("#set-btn").click()
  
      until(lambda: get_output().get("value") == "Set Value", 2)
  
      _input = dash_duo.find_element("#append-value")
      _input.send_keys("Append")
      dash_duo.find_element("#append-btn").click()
  
      until(lambda: get_output().get("array") == ["initial", "Append"], 2)
  
      _input = dash_duo.find_element("#prepend-value")
      _input.send_keys("Prepend")
      dash_duo.find_element("#prepend-btn").click()
  
      until(lambda: get_output().get("array") == ["Prepend", "initial", "Append"], 2)
  
      _input = dash_duo.find_element("#extend-value")
      _input.send_keys("Extend")
      dash_duo.find_element("#extend-btn").click()
  
      until(
          lambda: get_output().get("array") == ["Prepend", "initial", "Append", "Extend"],
          2,
      )
  
      undef = object()
      until(lambda: get_output().get("merged", undef) is undef, 2)
  
      _input = dash_duo.find_element("#merge-value")
      _input.send_keys("Merged")
      dash_duo.find_element("#merge-btn").click()
  
      until(lambda: get_output().get("merged") == "Merged", 2)
  
      until(lambda: get_output().get("delete") == "Delete me", 2)
  
      dash_duo.find_element("#delete-btn").click()
  
      until(lambda: get_output().get("delete", undef) is undef, 2)
  
      _input = dash_duo.find_element("#insert-value")
      _input.send_keys("Inserted")
      dash_duo.find_element("#insert-btn").click()
  
      until(
          lambda: get_output().get("array")
          == [
              "Prepend",
              "Inserted",
              "initial",
              "Append",
              "Extend",
          ],
          2,
      )
  
      _input.send_keys(" with negative index")
      _input = dash_duo.find_element("#insert-index")
      _input.send_keys(Keys.BACKSPACE)
      _input.send_keys("-1")
      dash_duo.find_element("#insert-btn").click()
  
      until(
          lambda: get_output().get("array")
          == [
              "Prepend",
              "Inserted",
              "initial",
              "Append",
              "Inserted with negative index",
              "Extend",
          ],
          2,
      )
  
      dash_duo.find_element("#delete-index").click()
      until(
          lambda: get_output().get("array")
          == [
              "Prepend",
              "initial",
              "Append",
              "Extend",
          ],
          2,
      )
  
      dash_duo.find_element("#reverse-btn").click()
      until(
          lambda: get_output().get("array")
          == [
              "Extend",
              "Append",
              "initial",
              "Prepend",
          ],
          2,
      )
  
      dash_duo.find_element("#remove-btn").click()
      until(
          lambda: get_output().get("array")
          == [
              "Extend",
              "Append",
              "Prepend",
          ],
          2,
      )
  
      dash_duo.find_element("#clear-btn").click()
      until(lambda: get_output()["array"] == [], 2)
  