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Truncate InvalidCallbackReturnValue size #2663

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3ef0334
Truncate `InvalidCallbackReturnValue` size
stdedos Oct 12, 2023
587fa9d
Truncate `InvalidCallbackReturnValue` size - test
stdedos Nov 13, 2023
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Truncate InvalidCallbackReturnValue size - test 
Signed-off-by: Stavros Ntentos <133706+stdedos@users.noreply.github.com>
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@stdedos
stdedos committed Nov 13, 2023
commit 587fa9dcbc90fa60490987a985a8e2acf96e36f7
85 changes: 84 additions & 1 deletion tests/integration/devtools/test_devtools_error_handling.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
# -*- coding: UTF-8 -*-
from dash import Dash, Input, Output, html, dcc
from dash import _validate, Dash, Input, Output, html, dcc
from dash.exceptions import PreventUpdate


Expand Down Expand Up @@ -260,3 +260,86 @@ def update_outputs(n_clicks):
dash_duo.wait_for_text_to_equal(dash_duo.devtools_error_count_locator, "1")
dash_duo.find_element(".test-devtools-error-toggle").click()
dash_duo.percy_snapshot("devtools - multi output Python exception - open")


def test_dveh006_truncate_callback(dash_duo):
app = Dash(__name__)

from dataclasses import dataclass
from typing import List, Dict, Any

@dataclass
class GenericItemA:
attribute_1: int
attribute_2: str

@dataclass
class GenericItemB:
key: str
value: List[str]

@dataclass
class GenericItemC:
identifier: int
description: str

@dataclass
class GenericOptions:
option_key: str
option_value: Any

@dataclass
class GenericDataModel:
ItemListA: List[GenericItemA]
SingleItemB: GenericItemB
NestedItemListC: List[List[GenericItemC]]
Options: GenericOptions
Metadata: Dict
AdditionalInfo: Any

app.layout = html.P(id="output")

@app.callback(Output("output", "children"), Input("url", "href"))
def get_width(_):
item_list_a = [
GenericItemA(attribute_1=123, attribute_2="Alpha"),
GenericItemA(attribute_1=456, attribute_2="Beta")
]

single_item_b = GenericItemB(key="Key1", value=["Item1", "Item2"])

nested_item_list_c = [
[GenericItemC(identifier=101, description="Description1")],
[GenericItemC(identifier=102, description="Description2")]
]

generic_options = GenericOptions(option_key="Option1", option_value="Value1")

generic_metadata = {"meta_key": "meta_value"}

additional_info = "Generic information"

# Creating an instance of GenericDataModel
generic_data_model = GenericDataModel(
ItemListA=item_list_a,
SingleItemB=single_item_b,
NestedItemListC=nested_item_list_c,
Options=generic_options,
Metadata=generic_metadata,
AdditionalInfo=additional_info
)

return generic_data_model

dash_duo.start_server(
app,
debug=True,
use_reloader=False,
use_debugger=True,
dev_tools_hot_reload=False,
)

dash_duo.find_element(".dash-debug-menu").click()
dash_duo.wait_for_text_to_equal(dash_duo.devtools_error_count_locator, "1")

assert len(get_error_html(dash_duo, 0)) == _validate.TRUNCATE_AT