Can't update datatable value in DASH app test

Dash Python
1

Dear everyone.

I have created an app that adds datatable values when a button is clicked.
I want to test this app’s callbacks using dash[testing].
So I created a test like below.

#!/usr/bin/python
import dash
from dash import Dash, Input, Output, State, html, dash_table, callback
import time
from selenium.webdriver.common.by import By


def test_001(dash_duo):
    app = dash.Dash(__name__)

    app.layout = html.Div([
        dash_table.DataTable(
            id='table',
            columns=(
                [{'id': p, 'name': p} for p in ['Column']]
            ),
            data=[
                dict(Model=i, **{param: 1 for param in ['Column']})
                for i in range(1, 3)
            ],
            style_header={
                "backgroundColor": "black",
                "color": "white",
            },
            style_table={
                'width':'10%',
            },
            editable=True
        ),
        html.Button('Button', id='button', n_clicks=0),
        html.Div(id="result")
    ])

    dash_duo.start_server(app)

    # Change value in table
    datatable = dash_duo.wait_for_element("#table")
    mean_parms = [1000, 2000]
    for i, p in enumerate(mean_parms, start=2):
        time.sleep(1)
        dash_duo.driver.execute_script(f'arguments[0].innerHTML = {p};', datatable.find_element(By.XPATH, f'//*[@id="table"]/div[2]/div/div[2]/div[2]/table/tbody/tr[{i}]/td/div'))
        time.sleep(1)

    # Click button
    dash_duo.wait_for_element('#button').click()
    time.sleep(10)


@callback(
    Output("result", "children"),
    Input("button", "n_clicks"),
    State("table", "data"),
    prevent_initial_call=True,
)
def sum_table_value(n, table):
    return int(table[0]['Column']) + int(table[1]['Column'])

State of the test.
test001

If you look at the video, you can see that the result of the callback is wrong.(I want 3000, but it’s actually 2)
Also, when I click the datatable cell, the value returns to the initial value.
I’m thinking I probably didn’t enter the datatable values correctly, but I can’t solve this problem.

Do you know how to resolve this issue?