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fix update behaviour for multiple properties#54

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chriddyp merged 6 commits into from
Jun 1, 2018
Merged

fix update behaviour for multiple properties #54

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44681fb
multiple property test
chriddyp Apr 30, 2018
d348813
update multiple property test
chriddyp Apr 30, 2018
9ccfce2
flask 1.0 update
chriddyp Apr 30, 2018
06f629f
fix tests
chriddyp Apr 30, 2018
e61da56
temp remove events tests
chriddyp Apr 30, 2018
741efb0
rm missing import
chriddyp Apr 30, 2018
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2 changes: 1 addition & 1 deletion dev-requirements.txt
View file
Open in desktop
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
dash_core_components==0.12.0
dash_html_components==0.7.0
dash_html_components==0.11.0rc5
dash==0.18.3
percy
selenium
Expand Down
12 changes: 11 additions & 1 deletion src/actions/index.js
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -210,7 +210,17 @@ export function notifyObservers(payload) {
return;
}
InputGraph.dependenciesOf(node).forEach(outputId => {
outputObservers.push(outputId);
/*
* Multiple input properties that update the same
* output can change at once.
* For example, `n_clicks` and `n_clicks_previous`
* on a button component.
* We only need to update the output once for this
* update, so keep outputObservers unique.
*/
if (!contains(outputId, outputObservers)) {
outputObservers.push(outputId);

@bpostlethwaitebpostlethwaiteApr 30, 2018

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Perhaps in a future iteration outputObservers could become a Set or similar data structure that enforces uniqueness.

}
});
});
}
Expand Down
3 changes: 2 additions & 1 deletion tests/IntegrationTests.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -55,7 +55,8 @@ def run():
dash.run_server(
port=8050,
debug=False,
processes=4
processes=4,
threaded=False
)

# Run on a separate process so that it doesn't block
Expand Down
105 changes: 72 additions & 33 deletions tests/test_render.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -11,6 +11,7 @@
import re
import itertools
import json
import unittest


class Tests(IntegrationTests):
Expand DownExpand Up@@ -657,11 +658,6 @@ def test_radio_buttons_callbacks_generating_children(self):
# traverse
'chapter4': 'Just a string',

# Chapter 5 contains elements that are bound with events
'chapter5': [html.Div([
html.Button(id='chapter5-button'),
html.Div(id='chapter5-output')
])]
}

call_counts = {
Expand All@@ -672,7 +668,6 @@ def test_radio_buttons_callbacks_generating_children(self):
'chapter2-label': Value('i', 0),
'chapter3-graph': Value('i', 0),
'chapter3-label': Value('i', 0),
'chapter5-output': Value('i', 0)
}

@app.callback(Output('body', 'children'), [Input('toc', 'value')])
Expand DownExpand Up@@ -712,14 +707,6 @@ def update_label(value):
[Input('{}-controls'.format(chapter), 'value')]
)(generate_label_callback('{}-label'.format(chapter)))

chapter5_output_children = 'Button clicked'

@app.callback(Output('chapter5-output', 'children'),
events=[Event('chapter5-button', 'click')])
def display_output():
call_counts['chapter5-output'].value += 1
return chapter5_output_children

self.startServer(app)

time.sleep(0.5)
Expand DownExpand Up@@ -914,25 +901,6 @@ def chapter3_assertions():
chapter1_assertions()
self.percy_snapshot(name='chapter-1-again')

# switch to 5
(self.driver.find_elements_by_css_selector(
'input[type="radio"]'
)[4]).click()
time.sleep(1)
# click on the button and check the output div before and after
chapter5_div = lambda: self.driver.find_element_by_id(
'chapter5-output'
)
chapter5_button = lambda: self.driver.find_element_by_id(
'chapter5-button'
)
self.assertEqual(chapter5_div().text, '')
chapter5_button().click()
wait_for(lambda: chapter5_div().text == chapter5_output_children)
time.sleep(0.5)
self.percy_snapshot(name='chapter-5')
self.assertEqual(call_counts['chapter5-output'].value, 1)

def test_dependencies_on_components_that_dont_exist(self):
app = Dash(__name__)
app.layout = html.Div([
Expand DownExpand Up@@ -981,6 +949,7 @@ def update_output_2(value):

assert_clean_console(self)

@unittest.skip("button events are temporarily broken")
def test_events(self):
app = Dash(__name__)
app.layout = html.Div([
Expand All@@ -1006,6 +975,7 @@ def update_output():
wait_for(lambda: output().text == 'Click')
self.assertEqual(call_count.value, 1)

@unittest.skip("button events are temporarily broken")
def test_events_and_state(self):
app = Dash(__name__)
app.layout = html.Div([
Expand DownExpand Up@@ -1045,6 +1015,7 @@ def update_output(value):
wait_for(lambda: output().text == 'Initial Statex')
self.assertEqual(call_count.value, 2)

@unittest.skip("button events are temporarily broken")
def test_events_state_and_inputs(self):
app = Dash(__name__)
app.layout = html.Div([
Expand DownExpand Up@@ -1825,3 +1796,71 @@ def __init__(self, _namespace):

# Reset react version
dash_renderer._set_react_version(dash_renderer._DEFAULT_REACT_VERSION)


def test_multiple_properties_update_at_same_time_on_same_component(self):
call_count = Value('i', 0)
timestamp_1 = Value('d', -5)
timestamp_2 = Value('d', -5)

app = dash.Dash()
app.layout = html.Div([
html.Div(id='container'),
html.Button('Click', id='button-1', n_clicks=0, n_clicks_timestamp=-1),
html.Button('Click', id='button-2', n_clicks=0, n_clicks_timestamp=-1)
])

@app.callback(
Output('container', 'children'),
[Input('button-1', 'n_clicks'),
Input('button-1', 'n_clicks_timestamp'),
Input('button-2', 'n_clicks'),
Input('button-2', 'n_clicks_timestamp')])
def update_output(*args):
call_count.value += 1
timestamp_1.value = args[1]
timestamp_2.value = args[3]
return '{}, {}'.format(args[0], args[2])

self.startServer(app)

self.wait_for_element_by_css_selector('#container')
time.sleep(2)
self.wait_for_text_to_equal('#container', '0, 0')
self.assertEqual(timestamp_1.value, -1)
self.assertEqual(timestamp_2.value, -1)
self.assertEqual(call_count.value, 1)
self.percy_snapshot('button initialization 1')

self.driver.find_element_by_css_selector('#button-1').click()
time.sleep(2)
self.wait_for_text_to_equal('#container', '1, 0')
self.assertTrue(
timestamp_1.value >
((time.time() - (24 * 60 * 60)) * 1000))
self.assertEqual(timestamp_2.value, -1)
self.assertEqual(call_count.value, 2)
self.percy_snapshot('button-1 click')
prev_timestamp_1 = timestamp_1.value

self.driver.find_element_by_css_selector('#button-2').click()
time.sleep(2)
self.wait_for_text_to_equal('#container', '1, 1')
self.assertEqual(timestamp_1.value, prev_timestamp_1)
self.assertTrue(
timestamp_2.value >
((time.time() - 24 * 60 * 60) * 1000))
self.assertEqual(call_count.value, 3)
self.percy_snapshot('button-2 click')
prev_timestamp_2 = timestamp_2.value

self.driver.find_element_by_css_selector('#button-2').click()
time.sleep(2)
self.wait_for_text_to_equal('#container', '1, 2')
self.assertEqual(timestamp_1.value, prev_timestamp_1)
self.assertTrue(
timestamp_2.value >
prev_timestamp_2)
self.assertTrue(timestamp_2.value > timestamp_1.value)
self.assertEqual(call_count.value, 4)
self.percy_snapshot('button-2 click again')
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content

This repository was archived by the owner on Aug 29, 2025. It is now read-only.

fix update behaviour for multiple properties#54
 Merged

chriddyp
merged 6 commits into

from

Jun 1, 2018
 Merged


fix update behaviour for multiple properties
#54
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44681fb

multiple property test


chriddyp Apr 30, 2018
d348813

update multiple property test


chriddyp Apr 30, 2018
9ccfce2

flask 1.0 update


chriddyp Apr 30, 2018
06f629f

fix tests


chriddyp Apr 30, 2018
e61da56

temp remove events tests


chriddyp Apr 30, 2018
741efb0

rm missing import


chriddyp Apr 30, 2018

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2 changes: 1 addition & 1 deletion
dev-requirements.txt

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
dash_core_components==0.12.0
dash_html_components==0.7.0
dash_html_components==0.11.0rc5
dash==0.18.3
percy
selenium
Expand Down

12 changes: 11 additions & 1 deletion
src/actions/index.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -210,7 +210,17 @@ export function notifyObservers(payload) {
 return;
 }
 InputGraph.dependenciesOf(node).forEach(outputId => {
 outputObservers.push(outputId);
 /*
 * Multiple input properties that update the same
 * output can change at once.
 * For example, `n_clicks` and `n_clicks_previous`
 * on a button component.
 * We only need to update the output once for this
 * update, so keep outputObservers unique.
 */
 if (!contains(outputId, outputObservers)) {
 outputObservers.push(outputId);
@bpostlethwaitebpostlethwaiteApr 30, 2018

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Choose a reason for hiding this comment

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Perhaps in a future iteration outputObservers could become a Set or similar data structure that enforces uniqueness.
 }
 });
 });
 }
Expand Down

3 changes: 2 additions & 1 deletion
tests/IntegrationTests.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -55,7 +55,8 @@ def run():
 dash.run_server(
 port=8050,
 debug=False,
 processes=4
 processes=4,
 threaded=False
 )

 # Run on a separate process so that it doesn't block
Expand Down

105 changes: 72 additions & 33 deletions
tests/test_render.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -11,6 +11,7 @@
import re
import itertools
import json
import unittest


class Tests(IntegrationTests):
Expand DownExpand Up@@ -657,11 +658,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 # traverse
 'chapter4': 'Just a string',

 # Chapter 5 contains elements that are bound with events
 'chapter5': [html.Div([
 html.Button(id='chapter5-button'),
 html.Div(id='chapter5-output')
 ])]
 }

 call_counts = {
Expand All@@ -672,7 +668,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 'chapter2-label': Value('i', 0),
 'chapter3-graph': Value('i', 0),
 'chapter3-label': Value('i', 0),
 'chapter5-output': Value('i', 0)
 }

 @app.callback(Output('body', 'children'), [Input('toc', 'value')])
Expand DownExpand Up@@ -712,14 +707,6 @@ def update_label(value):
 [Input('{}-controls'.format(chapter), 'value')]
 )(generate_label_callback('{}-label'.format(chapter)))

 chapter5_output_children = 'Button clicked'

 @app.callback(Output('chapter5-output', 'children'),
 events=[Event('chapter5-button', 'click')])
 def display_output():
 call_counts['chapter5-output'].value += 1
 return chapter5_output_children

 self.startServer(app)

 time.sleep(0.5)
Expand DownExpand Up@@ -914,25 +901,6 @@ def chapter3_assertions():
 chapter1_assertions()
 self.percy_snapshot(name='chapter-1-again')

 # switch to 5
 (self.driver.find_elements_by_css_selector(
 'input[type="radio"]'
 )[4]).click()
 time.sleep(1)
 # click on the button and check the output div before and after
 chapter5_div = lambda: self.driver.find_element_by_id(
 'chapter5-output'
 )
 chapter5_button = lambda: self.driver.find_element_by_id(
 'chapter5-button'
 )
 self.assertEqual(chapter5_div().text, '')
 chapter5_button().click()
 wait_for(lambda: chapter5_div().text == chapter5_output_children)
 time.sleep(0.5)
 self.percy_snapshot(name='chapter-5')
 self.assertEqual(call_counts['chapter5-output'].value, 1)

 def test_dependencies_on_components_that_dont_exist(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -981,6 +949,7 @@ def update_output_2(value):

 assert_clean_console(self)

 @unittest.skip("button events are temporarily broken")
 def test_events(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand All@@ -1006,6 +975,7 @@ def update_output():
 wait_for(lambda: output().text == 'Click')
 self.assertEqual(call_count.value, 1)

 @unittest.skip("button events are temporarily broken")
 def test_events_and_state(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1045,6 +1015,7 @@ def update_output(value):
 wait_for(lambda: output().text == 'Initial Statex')
 self.assertEqual(call_count.value, 2)

 @unittest.skip("button events are temporarily broken")
 def test_events_state_and_inputs(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1825,3 +1796,71 @@ def __init__(self, _namespace):

 # Reset react version
 dash_renderer._set_react_version(dash_renderer._DEFAULT_REACT_VERSION)


 def test_multiple_properties_update_at_same_time_on_same_component(self):
 call_count = Value('i', 0)
 timestamp_1 = Value('d', -5)
 timestamp_2 = Value('d', -5)

 app = dash.Dash()
 app.layout = html.Div([
 html.Div(id='container'),
 html.Button('Click', id='button-1', n_clicks=0, n_clicks_timestamp=-1),
 html.Button('Click', id='button-2', n_clicks=0, n_clicks_timestamp=-1)
 ])

 @app.callback(
 Output('container', 'children'),
 [Input('button-1', 'n_clicks'),
 Input('button-1', 'n_clicks_timestamp'),
 Input('button-2', 'n_clicks'),
 Input('button-2', 'n_clicks_timestamp')])
 def update_output(*args):
 call_count.value += 1
 timestamp_1.value = args[1]
 timestamp_2.value = args[3]
 return '{}, {}'.format(args[0], args[2])

 self.startServer(app)

 self.wait_for_element_by_css_selector('#container')
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '0, 0')
 self.assertEqual(timestamp_1.value, -1)
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 1)
 self.percy_snapshot('button initialization 1')

 self.driver.find_element_by_css_selector('#button-1').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 0')
 self.assertTrue(
 timestamp_1.value >
 ((time.time() - (24 * 60 * 60)) * 1000))
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 2)
 self.percy_snapshot('button-1 click')
 prev_timestamp_1 = timestamp_1.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 1')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 ((time.time() - 24 * 60 * 60) * 1000))
 self.assertEqual(call_count.value, 3)
 self.percy_snapshot('button-2 click')
 prev_timestamp_2 = timestamp_2.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 2')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 prev_timestamp_2)
 self.assertTrue(timestamp_2.value > timestamp_1.value)
 self.assertEqual(call_count.value, 4)
 self.percy_snapshot('button-2 click again')

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content

This repository was archived by the owner on Aug 29, 2025. It is now read-only.

fix update behaviour for multiple properties#54
 Merged

chriddyp
merged 6 commits into

from

Jun 1, 2018
 Merged


fix update behaviour for multiple properties
#54
Show file tree
Hide file tree
 Changes from all commits
Commits

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6 commits


Select commit
Hold shift + click to select a range
44681fb

multiple property test


chriddyp Apr 30, 2018
d348813

update multiple property test


chriddyp Apr 30, 2018
9ccfce2

flask 1.0 update


chriddyp Apr 30, 2018
06f629f

fix tests


chriddyp Apr 30, 2018
e61da56

temp remove events tests


chriddyp Apr 30, 2018
741efb0

rm missing import


chriddyp Apr 30, 2018

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2 changes: 1 addition & 1 deletion
dev-requirements.txt

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
dash_core_components==0.12.0
dash_html_components==0.7.0
dash_html_components==0.11.0rc5
dash==0.18.3
percy
selenium
Expand Down

12 changes: 11 additions & 1 deletion
src/actions/index.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -210,7 +210,17 @@ export function notifyObservers(payload) {
 return;
 }
 InputGraph.dependenciesOf(node).forEach(outputId => {
 outputObservers.push(outputId);
 /*
 * Multiple input properties that update the same
 * output can change at once.
 * For example, `n_clicks` and `n_clicks_previous`
 * on a button component.
 * We only need to update the output once for this
 * update, so keep outputObservers unique.
 */
 if (!contains(outputId, outputObservers)) {
 outputObservers.push(outputId);
@bpostlethwaitebpostlethwaiteApr 30, 2018

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Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Perhaps in a future iteration outputObservers could become a Set or similar data structure that enforces uniqueness.
 }
 });
 });
 }
Expand Down

3 changes: 2 additions & 1 deletion
tests/IntegrationTests.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -55,7 +55,8 @@ def run():
 dash.run_server(
 port=8050,
 debug=False,
 processes=4
 processes=4,
 threaded=False
 )

 # Run on a separate process so that it doesn't block
Expand Down

105 changes: 72 additions & 33 deletions
tests/test_render.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -11,6 +11,7 @@
import re
import itertools
import json
import unittest


class Tests(IntegrationTests):
Expand DownExpand Up@@ -657,11 +658,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 # traverse
 'chapter4': 'Just a string',

 # Chapter 5 contains elements that are bound with events
 'chapter5': [html.Div([
 html.Button(id='chapter5-button'),
 html.Div(id='chapter5-output')
 ])]
 }

 call_counts = {
Expand All@@ -672,7 +668,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 'chapter2-label': Value('i', 0),
 'chapter3-graph': Value('i', 0),
 'chapter3-label': Value('i', 0),
 'chapter5-output': Value('i', 0)
 }

 @app.callback(Output('body', 'children'), [Input('toc', 'value')])
Expand DownExpand Up@@ -712,14 +707,6 @@ def update_label(value):
 [Input('{}-controls'.format(chapter), 'value')]
 )(generate_label_callback('{}-label'.format(chapter)))

 chapter5_output_children = 'Button clicked'

 @app.callback(Output('chapter5-output', 'children'),
 events=[Event('chapter5-button', 'click')])
 def display_output():
 call_counts['chapter5-output'].value += 1
 return chapter5_output_children

 self.startServer(app)

 time.sleep(0.5)
Expand DownExpand Up@@ -914,25 +901,6 @@ def chapter3_assertions():
 chapter1_assertions()
 self.percy_snapshot(name='chapter-1-again')

 # switch to 5
 (self.driver.find_elements_by_css_selector(
 'input[type="radio"]'
 )[4]).click()
 time.sleep(1)
 # click on the button and check the output div before and after
 chapter5_div = lambda: self.driver.find_element_by_id(
 'chapter5-output'
 )
 chapter5_button = lambda: self.driver.find_element_by_id(
 'chapter5-button'
 )
 self.assertEqual(chapter5_div().text, '')
 chapter5_button().click()
 wait_for(lambda: chapter5_div().text == chapter5_output_children)
 time.sleep(0.5)
 self.percy_snapshot(name='chapter-5')
 self.assertEqual(call_counts['chapter5-output'].value, 1)

 def test_dependencies_on_components_that_dont_exist(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -981,6 +949,7 @@ def update_output_2(value):

 assert_clean_console(self)

 @unittest.skip("button events are temporarily broken")
 def test_events(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand All@@ -1006,6 +975,7 @@ def update_output():
 wait_for(lambda: output().text == 'Click')
 self.assertEqual(call_count.value, 1)

 @unittest.skip("button events are temporarily broken")
 def test_events_and_state(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1045,6 +1015,7 @@ def update_output(value):
 wait_for(lambda: output().text == 'Initial Statex')
 self.assertEqual(call_count.value, 2)

 @unittest.skip("button events are temporarily broken")
 def test_events_state_and_inputs(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1825,3 +1796,71 @@ def __init__(self, _namespace):

 # Reset react version
 dash_renderer._set_react_version(dash_renderer._DEFAULT_REACT_VERSION)


 def test_multiple_properties_update_at_same_time_on_same_component(self):
 call_count = Value('i', 0)
 timestamp_1 = Value('d', -5)
 timestamp_2 = Value('d', -5)

 app = dash.Dash()
 app.layout = html.Div([
 html.Div(id='container'),
 html.Button('Click', id='button-1', n_clicks=0, n_clicks_timestamp=-1),
 html.Button('Click', id='button-2', n_clicks=0, n_clicks_timestamp=-1)
 ])

 @app.callback(
 Output('container', 'children'),
 [Input('button-1', 'n_clicks'),
 Input('button-1', 'n_clicks_timestamp'),
 Input('button-2', 'n_clicks'),
 Input('button-2', 'n_clicks_timestamp')])
 def update_output(*args):
 call_count.value += 1
 timestamp_1.value = args[1]
 timestamp_2.value = args[3]
 return '{}, {}'.format(args[0], args[2])

 self.startServer(app)

 self.wait_for_element_by_css_selector('#container')
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '0, 0')
 self.assertEqual(timestamp_1.value, -1)
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 1)
 self.percy_snapshot('button initialization 1')

 self.driver.find_element_by_css_selector('#button-1').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 0')
 self.assertTrue(
 timestamp_1.value >
 ((time.time() - (24 * 60 * 60)) * 1000))
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 2)
 self.percy_snapshot('button-1 click')
 prev_timestamp_1 = timestamp_1.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 1')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 ((time.time() - 24 * 60 * 60) * 1000))
 self.assertEqual(call_count.value, 3)
 self.percy_snapshot('button-2 click')
 prev_timestamp_2 = timestamp_2.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 2')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 prev_timestamp_2)
 self.assertTrue(timestamp_2.value > timestamp_1.value)
 self.assertEqual(call_count.value, 4)
 self.percy_snapshot('button-2 click again')

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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fix update behaviour for multiple properties#54
 Merged

chriddyp
merged 6 commits into

from

Jun 1, 2018
 Merged


fix update behaviour for multiple properties
#54
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44681fb

multiple property test


chriddyp Apr 30, 2018
d348813

update multiple property test


chriddyp Apr 30, 2018
9ccfce2

flask 1.0 update


chriddyp Apr 30, 2018
06f629f

fix tests


chriddyp Apr 30, 2018
e61da56

temp remove events tests


chriddyp Apr 30, 2018
741efb0

rm missing import


chriddyp Apr 30, 2018

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2 changes: 1 addition & 1 deletion
dev-requirements.txt

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
dash_core_components==0.12.0
dash_html_components==0.7.0
dash_html_components==0.11.0rc5
dash==0.18.3
percy
selenium
Expand Down

12 changes: 11 additions & 1 deletion
src/actions/index.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -210,7 +210,17 @@ export function notifyObservers(payload) {
 return;
 }
 InputGraph.dependenciesOf(node).forEach(outputId => {
 outputObservers.push(outputId);
 /*
 * Multiple input properties that update the same
 * output can change at once.
 * For example, `n_clicks` and `n_clicks_previous`
 * on a button component.
 * We only need to update the output once for this
 * update, so keep outputObservers unique.
 */
 if (!contains(outputId, outputObservers)) {
 outputObservers.push(outputId);
@bpostlethwaitebpostlethwaiteApr 30, 2018

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Perhaps in a future iteration outputObservers could become a Set or similar data structure that enforces uniqueness.
 }
 });
 });
 }
Expand Down

3 changes: 2 additions & 1 deletion
tests/IntegrationTests.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -55,7 +55,8 @@ def run():
 dash.run_server(
 port=8050,
 debug=False,
 processes=4
 processes=4,
 threaded=False
 )

 # Run on a separate process so that it doesn't block
Expand Down

105 changes: 72 additions & 33 deletions
tests/test_render.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -11,6 +11,7 @@
import re
import itertools
import json
import unittest


class Tests(IntegrationTests):
Expand DownExpand Up@@ -657,11 +658,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 # traverse
 'chapter4': 'Just a string',

 # Chapter 5 contains elements that are bound with events
 'chapter5': [html.Div([
 html.Button(id='chapter5-button'),
 html.Div(id='chapter5-output')
 ])]
 }

 call_counts = {
Expand All@@ -672,7 +668,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 'chapter2-label': Value('i', 0),
 'chapter3-graph': Value('i', 0),
 'chapter3-label': Value('i', 0),
 'chapter5-output': Value('i', 0)
 }

 @app.callback(Output('body', 'children'), [Input('toc', 'value')])
Expand DownExpand Up@@ -712,14 +707,6 @@ def update_label(value):
 [Input('{}-controls'.format(chapter), 'value')]
 )(generate_label_callback('{}-label'.format(chapter)))

 chapter5_output_children = 'Button clicked'

 @app.callback(Output('chapter5-output', 'children'),
 events=[Event('chapter5-button', 'click')])
 def display_output():
 call_counts['chapter5-output'].value += 1
 return chapter5_output_children

 self.startServer(app)

 time.sleep(0.5)
Expand DownExpand Up@@ -914,25 +901,6 @@ def chapter3_assertions():
 chapter1_assertions()
 self.percy_snapshot(name='chapter-1-again')

 # switch to 5
 (self.driver.find_elements_by_css_selector(
 'input[type="radio"]'
 )[4]).click()
 time.sleep(1)
 # click on the button and check the output div before and after
 chapter5_div = lambda: self.driver.find_element_by_id(
 'chapter5-output'
 )
 chapter5_button = lambda: self.driver.find_element_by_id(
 'chapter5-button'
 )
 self.assertEqual(chapter5_div().text, '')
 chapter5_button().click()
 wait_for(lambda: chapter5_div().text == chapter5_output_children)
 time.sleep(0.5)
 self.percy_snapshot(name='chapter-5')
 self.assertEqual(call_counts['chapter5-output'].value, 1)

 def test_dependencies_on_components_that_dont_exist(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -981,6 +949,7 @@ def update_output_2(value):

 assert_clean_console(self)

 @unittest.skip("button events are temporarily broken")
 def test_events(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand All@@ -1006,6 +975,7 @@ def update_output():
 wait_for(lambda: output().text == 'Click')
 self.assertEqual(call_count.value, 1)

 @unittest.skip("button events are temporarily broken")
 def test_events_and_state(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1045,6 +1015,7 @@ def update_output(value):
 wait_for(lambda: output().text == 'Initial Statex')
 self.assertEqual(call_count.value, 2)

 @unittest.skip("button events are temporarily broken")
 def test_events_state_and_inputs(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1825,3 +1796,71 @@ def __init__(self, _namespace):

 # Reset react version
 dash_renderer._set_react_version(dash_renderer._DEFAULT_REACT_VERSION)


 def test_multiple_properties_update_at_same_time_on_same_component(self):
 call_count = Value('i', 0)
 timestamp_1 = Value('d', -5)
 timestamp_2 = Value('d', -5)

 app = dash.Dash()
 app.layout = html.Div([
 html.Div(id='container'),
 html.Button('Click', id='button-1', n_clicks=0, n_clicks_timestamp=-1),
 html.Button('Click', id='button-2', n_clicks=0, n_clicks_timestamp=-1)
 ])

 @app.callback(
 Output('container', 'children'),
 [Input('button-1', 'n_clicks'),
 Input('button-1', 'n_clicks_timestamp'),
 Input('button-2', 'n_clicks'),
 Input('button-2', 'n_clicks_timestamp')])
 def update_output(*args):
 call_count.value += 1
 timestamp_1.value = args[1]
 timestamp_2.value = args[3]
 return '{}, {}'.format(args[0], args[2])

 self.startServer(app)

 self.wait_for_element_by_css_selector('#container')
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '0, 0')
 self.assertEqual(timestamp_1.value, -1)
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 1)
 self.percy_snapshot('button initialization 1')

 self.driver.find_element_by_css_selector('#button-1').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 0')
 self.assertTrue(
 timestamp_1.value >
 ((time.time() - (24 * 60 * 60)) * 1000))
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 2)
 self.percy_snapshot('button-1 click')
 prev_timestamp_1 = timestamp_1.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 1')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 ((time.time() - 24 * 60 * 60) * 1000))
 self.assertEqual(call_count.value, 3)
 self.percy_snapshot('button-2 click')
 prev_timestamp_2 = timestamp_2.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 2')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 prev_timestamp_2)
 self.assertTrue(timestamp_2.value > timestamp_1.value)
 self.assertEqual(call_count.value, 4)
 self.percy_snapshot('button-2 click again')

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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This repository was archived by the owner on Aug 29, 2025. It is now read-only.

fix update behaviour for multiple properties#54
 Merged

chriddyp
merged 6 commits into

from

Jun 1, 2018
 Merged


fix update behaviour for multiple properties
#54
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44681fb

multiple property test


chriddyp Apr 30, 2018
d348813

update multiple property test


chriddyp Apr 30, 2018
9ccfce2

flask 1.0 update


chriddyp Apr 30, 2018
06f629f

fix tests


chriddyp Apr 30, 2018
e61da56

temp remove events tests


chriddyp Apr 30, 2018
741efb0

rm missing import


chriddyp Apr 30, 2018

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2 changes: 1 addition & 1 deletion
dev-requirements.txt

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
dash_core_components==0.12.0
dash_html_components==0.7.0
dash_html_components==0.11.0rc5
dash==0.18.3
percy
selenium
Expand Down

12 changes: 11 additions & 1 deletion
src/actions/index.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -210,7 +210,17 @@ export function notifyObservers(payload) {
 return;
 }
 InputGraph.dependenciesOf(node).forEach(outputId => {
 outputObservers.push(outputId);
 /*
 * Multiple input properties that update the same
 * output can change at once.
 * For example, `n_clicks` and `n_clicks_previous`
 * on a button component.
 * We only need to update the output once for this
 * update, so keep outputObservers unique.
 */
 if (!contains(outputId, outputObservers)) {
 outputObservers.push(outputId);
@bpostlethwaitebpostlethwaiteApr 30, 2018

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Perhaps in a future iteration outputObservers could become a Set or similar data structure that enforces uniqueness.
 }
 });
 });
 }
Expand Down

3 changes: 2 additions & 1 deletion
tests/IntegrationTests.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -55,7 +55,8 @@ def run():
 dash.run_server(
 port=8050,
 debug=False,
 processes=4
 processes=4,
 threaded=False
 )

 # Run on a separate process so that it doesn't block
Expand Down

105 changes: 72 additions & 33 deletions
tests/test_render.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -11,6 +11,7 @@
import re
import itertools
import json
import unittest


class Tests(IntegrationTests):
Expand DownExpand Up@@ -657,11 +658,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 # traverse
 'chapter4': 'Just a string',

 # Chapter 5 contains elements that are bound with events
 'chapter5': [html.Div([
 html.Button(id='chapter5-button'),
 html.Div(id='chapter5-output')
 ])]
 }

 call_counts = {
Expand All@@ -672,7 +668,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 'chapter2-label': Value('i', 0),
 'chapter3-graph': Value('i', 0),
 'chapter3-label': Value('i', 0),
 'chapter5-output': Value('i', 0)
 }

 @app.callback(Output('body', 'children'), [Input('toc', 'value')])
Expand DownExpand Up@@ -712,14 +707,6 @@ def update_label(value):
 [Input('{}-controls'.format(chapter), 'value')]
 )(generate_label_callback('{}-label'.format(chapter)))

 chapter5_output_children = 'Button clicked'

 @app.callback(Output('chapter5-output', 'children'),
 events=[Event('chapter5-button', 'click')])
 def display_output():
 call_counts['chapter5-output'].value += 1
 return chapter5_output_children

 self.startServer(app)

 time.sleep(0.5)
Expand DownExpand Up@@ -914,25 +901,6 @@ def chapter3_assertions():
 chapter1_assertions()
 self.percy_snapshot(name='chapter-1-again')

 # switch to 5
 (self.driver.find_elements_by_css_selector(
 'input[type="radio"]'
 )[4]).click()
 time.sleep(1)
 # click on the button and check the output div before and after
 chapter5_div = lambda: self.driver.find_element_by_id(
 'chapter5-output'
 )
 chapter5_button = lambda: self.driver.find_element_by_id(
 'chapter5-button'
 )
 self.assertEqual(chapter5_div().text, '')
 chapter5_button().click()
 wait_for(lambda: chapter5_div().text == chapter5_output_children)
 time.sleep(0.5)
 self.percy_snapshot(name='chapter-5')
 self.assertEqual(call_counts['chapter5-output'].value, 1)

 def test_dependencies_on_components_that_dont_exist(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -981,6 +949,7 @@ def update_output_2(value):

 assert_clean_console(self)

 @unittest.skip("button events are temporarily broken")
 def test_events(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand All@@ -1006,6 +975,7 @@ def update_output():
 wait_for(lambda: output().text == 'Click')
 self.assertEqual(call_count.value, 1)

 @unittest.skip("button events are temporarily broken")
 def test_events_and_state(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1045,6 +1015,7 @@ def update_output(value):
 wait_for(lambda: output().text == 'Initial Statex')
 self.assertEqual(call_count.value, 2)

 @unittest.skip("button events are temporarily broken")
 def test_events_state_and_inputs(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1825,3 +1796,71 @@ def __init__(self, _namespace):

 # Reset react version
 dash_renderer._set_react_version(dash_renderer._DEFAULT_REACT_VERSION)


 def test_multiple_properties_update_at_same_time_on_same_component(self):
 call_count = Value('i', 0)
 timestamp_1 = Value('d', -5)
 timestamp_2 = Value('d', -5)

 app = dash.Dash()
 app.layout = html.Div([
 html.Div(id='container'),
 html.Button('Click', id='button-1', n_clicks=0, n_clicks_timestamp=-1),
 html.Button('Click', id='button-2', n_clicks=0, n_clicks_timestamp=-1)
 ])

 @app.callback(
 Output('container', 'children'),
 [Input('button-1', 'n_clicks'),
 Input('button-1', 'n_clicks_timestamp'),
 Input('button-2', 'n_clicks'),
 Input('button-2', 'n_clicks_timestamp')])
 def update_output(*args):
 call_count.value += 1
 timestamp_1.value = args[1]
 timestamp_2.value = args[3]
 return '{}, {}'.format(args[0], args[2])

 self.startServer(app)

 self.wait_for_element_by_css_selector('#container')
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '0, 0')
 self.assertEqual(timestamp_1.value, -1)
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 1)
 self.percy_snapshot('button initialization 1')

 self.driver.find_element_by_css_selector('#button-1').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 0')
 self.assertTrue(
 timestamp_1.value >
 ((time.time() - (24 * 60 * 60)) * 1000))
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 2)
 self.percy_snapshot('button-1 click')
 prev_timestamp_1 = timestamp_1.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 1')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 ((time.time() - 24 * 60 * 60) * 1000))
 self.assertEqual(call_count.value, 3)
 self.percy_snapshot('button-2 click')
 prev_timestamp_2 = timestamp_2.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 2')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 prev_timestamp_2)
 self.assertTrue(timestamp_2.value > timestamp_1.value)
 self.assertEqual(call_count.value, 4)
 self.percy_snapshot('button-2 click again')

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content

This repository was archived by the owner on Aug 29, 2025. It is now read-only.

fix update behaviour for multiple properties#54
 Merged

chriddyp
merged 6 commits into

from

Jun 1, 2018
 Merged


fix update behaviour for multiple properties
#54
Show file tree
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44681fb

multiple property test


chriddyp Apr 30, 2018
d348813

update multiple property test


chriddyp Apr 30, 2018
9ccfce2

flask 1.0 update


chriddyp Apr 30, 2018
06f629f

fix tests


chriddyp Apr 30, 2018
e61da56

temp remove events tests


chriddyp Apr 30, 2018
741efb0

rm missing import


chriddyp Apr 30, 2018

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2 changes: 1 addition & 1 deletion
dev-requirements.txt

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
dash_core_components==0.12.0
dash_html_components==0.7.0
dash_html_components==0.11.0rc5
dash==0.18.3
percy
selenium
Expand Down

12 changes: 11 additions & 1 deletion
src/actions/index.js

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -210,7 +210,17 @@ export function notifyObservers(payload) {
 return;
 }
 InputGraph.dependenciesOf(node).forEach(outputId => {
 outputObservers.push(outputId);
 /*
 * Multiple input properties that update the same
 * output can change at once.
 * For example, `n_clicks` and `n_clicks_previous`
 * on a button component.
 * We only need to update the output once for this
 * update, so keep outputObservers unique.
 */
 if (!contains(outputId, outputObservers)) {
 outputObservers.push(outputId);
@bpostlethwaitebpostlethwaiteApr 30, 2018

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Perhaps in a future iteration outputObservers could become a Set or similar data structure that enforces uniqueness.
 }
 });
 });
 }
Expand Down

3 changes: 2 additions & 1 deletion
tests/IntegrationTests.py

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -55,7 +55,8 @@ def run():
 dash.run_server(
 port=8050,
 debug=False,
 processes=4
 processes=4,
 threaded=False
 )

 # Run on a separate process so that it doesn't block
Expand Down

105 changes: 72 additions & 33 deletions
tests/test_render.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -11,6 +11,7 @@
import re
import itertools
import json
import unittest


class Tests(IntegrationTests):
Expand DownExpand Up@@ -657,11 +658,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 # traverse
 'chapter4': 'Just a string',

 # Chapter 5 contains elements that are bound with events
 'chapter5': [html.Div([
 html.Button(id='chapter5-button'),
 html.Div(id='chapter5-output')
 ])]
 }

 call_counts = {
Expand All@@ -672,7 +668,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 'chapter2-label': Value('i', 0),
 'chapter3-graph': Value('i', 0),
 'chapter3-label': Value('i', 0),
 'chapter5-output': Value('i', 0)
 }

 @app.callback(Output('body', 'children'), [Input('toc', 'value')])
Expand DownExpand Up@@ -712,14 +707,6 @@ def update_label(value):
 [Input('{}-controls'.format(chapter), 'value')]
 )(generate_label_callback('{}-label'.format(chapter)))

 chapter5_output_children = 'Button clicked'

 @app.callback(Output('chapter5-output', 'children'),
 events=[Event('chapter5-button', 'click')])
 def display_output():
 call_counts['chapter5-output'].value += 1
 return chapter5_output_children

 self.startServer(app)

 time.sleep(0.5)
Expand DownExpand Up@@ -914,25 +901,6 @@ def chapter3_assertions():
 chapter1_assertions()
 self.percy_snapshot(name='chapter-1-again')

 # switch to 5
 (self.driver.find_elements_by_css_selector(
 'input[type="radio"]'
 )[4]).click()
 time.sleep(1)
 # click on the button and check the output div before and after
 chapter5_div = lambda: self.driver.find_element_by_id(
 'chapter5-output'
 )
 chapter5_button = lambda: self.driver.find_element_by_id(
 'chapter5-button'
 )
 self.assertEqual(chapter5_div().text, '')
 chapter5_button().click()
 wait_for(lambda: chapter5_div().text == chapter5_output_children)
 time.sleep(0.5)
 self.percy_snapshot(name='chapter-5')
 self.assertEqual(call_counts['chapter5-output'].value, 1)

 def test_dependencies_on_components_that_dont_exist(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -981,6 +949,7 @@ def update_output_2(value):

 assert_clean_console(self)

 @unittest.skip("button events are temporarily broken")
 def test_events(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand All@@ -1006,6 +975,7 @@ def update_output():
 wait_for(lambda: output().text == 'Click')
 self.assertEqual(call_count.value, 1)

 @unittest.skip("button events are temporarily broken")
 def test_events_and_state(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1045,6 +1015,7 @@ def update_output(value):
 wait_for(lambda: output().text == 'Initial Statex')
 self.assertEqual(call_count.value, 2)

 @unittest.skip("button events are temporarily broken")
 def test_events_state_and_inputs(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1825,3 +1796,71 @@ def __init__(self, _namespace):

 # Reset react version
 dash_renderer._set_react_version(dash_renderer._DEFAULT_REACT_VERSION)


 def test_multiple_properties_update_at_same_time_on_same_component(self):
 call_count = Value('i', 0)
 timestamp_1 = Value('d', -5)
 timestamp_2 = Value('d', -5)

 app = dash.Dash()
 app.layout = html.Div([
 html.Div(id='container'),
 html.Button('Click', id='button-1', n_clicks=0, n_clicks_timestamp=-1),
 html.Button('Click', id='button-2', n_clicks=0, n_clicks_timestamp=-1)
 ])

 @app.callback(
 Output('container', 'children'),
 [Input('button-1', 'n_clicks'),
 Input('button-1', 'n_clicks_timestamp'),
 Input('button-2', 'n_clicks'),
 Input('button-2', 'n_clicks_timestamp')])
 def update_output(*args):
 call_count.value += 1
 timestamp_1.value = args[1]
 timestamp_2.value = args[3]
 return '{}, {}'.format(args[0], args[2])

 self.startServer(app)

 self.wait_for_element_by_css_selector('#container')
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '0, 0')
 self.assertEqual(timestamp_1.value, -1)
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 1)
 self.percy_snapshot('button initialization 1')

 self.driver.find_element_by_css_selector('#button-1').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 0')
 self.assertTrue(
 timestamp_1.value >
 ((time.time() - (24 * 60 * 60)) * 1000))
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 2)
 self.percy_snapshot('button-1 click')
 prev_timestamp_1 = timestamp_1.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 1')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 ((time.time() - 24 * 60 * 60) * 1000))
 self.assertEqual(call_count.value, 3)
 self.percy_snapshot('button-2 click')
 prev_timestamp_2 = timestamp_2.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 2')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 prev_timestamp_2)
 self.assertTrue(timestamp_2.value > timestamp_1.value)
 self.assertEqual(call_count.value, 4)
 self.percy_snapshot('button-2 click again')

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content

This repository was archived by the owner on Aug 29, 2025. It is now read-only.

fix update behaviour for multiple properties#54
 Merged

chriddyp
merged 6 commits into

from

Jun 1, 2018
 Merged


fix update behaviour for multiple properties
#54
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44681fb

multiple property test


chriddyp Apr 30, 2018
d348813

update multiple property test


chriddyp Apr 30, 2018
9ccfce2

flask 1.0 update


chriddyp Apr 30, 2018
06f629f

fix tests


chriddyp Apr 30, 2018
e61da56

temp remove events tests


chriddyp Apr 30, 2018
741efb0

rm missing import


chriddyp Apr 30, 2018

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2 changes: 1 addition & 1 deletion
dev-requirements.txt

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
dash_core_components==0.12.0
dash_html_components==0.7.0
dash_html_components==0.11.0rc5
dash==0.18.3
percy
selenium
Expand Down

12 changes: 11 additions & 1 deletion
src/actions/index.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -210,7 +210,17 @@ export function notifyObservers(payload) {
 return;
 }
 InputGraph.dependenciesOf(node).forEach(outputId => {
 outputObservers.push(outputId);
 /*
 * Multiple input properties that update the same
 * output can change at once.
 * For example, `n_clicks` and `n_clicks_previous`
 * on a button component.
 * We only need to update the output once for this
 * update, so keep outputObservers unique.
 */
 if (!contains(outputId, outputObservers)) {
 outputObservers.push(outputId);
@bpostlethwaitebpostlethwaiteApr 30, 2018

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Perhaps in a future iteration outputObservers could become a Set or similar data structure that enforces uniqueness.
 }
 });
 });
 }
Expand Down

3 changes: 2 additions & 1 deletion
tests/IntegrationTests.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -55,7 +55,8 @@ def run():
 dash.run_server(
 port=8050,
 debug=False,
 processes=4
 processes=4,
 threaded=False
 )

 # Run on a separate process so that it doesn't block
Expand Down

105 changes: 72 additions & 33 deletions
tests/test_render.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -11,6 +11,7 @@
import re
import itertools
import json
import unittest


class Tests(IntegrationTests):
Expand DownExpand Up@@ -657,11 +658,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 # traverse
 'chapter4': 'Just a string',

 # Chapter 5 contains elements that are bound with events
 'chapter5': [html.Div([
 html.Button(id='chapter5-button'),
 html.Div(id='chapter5-output')
 ])]
 }

 call_counts = {
Expand All@@ -672,7 +668,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 'chapter2-label': Value('i', 0),
 'chapter3-graph': Value('i', 0),
 'chapter3-label': Value('i', 0),
 'chapter5-output': Value('i', 0)
 }

 @app.callback(Output('body', 'children'), [Input('toc', 'value')])
Expand DownExpand Up@@ -712,14 +707,6 @@ def update_label(value):
 [Input('{}-controls'.format(chapter), 'value')]
 )(generate_label_callback('{}-label'.format(chapter)))

 chapter5_output_children = 'Button clicked'

 @app.callback(Output('chapter5-output', 'children'),
 events=[Event('chapter5-button', 'click')])
 def display_output():
 call_counts['chapter5-output'].value += 1
 return chapter5_output_children

 self.startServer(app)

 time.sleep(0.5)
Expand DownExpand Up@@ -914,25 +901,6 @@ def chapter3_assertions():
 chapter1_assertions()
 self.percy_snapshot(name='chapter-1-again')

 # switch to 5
 (self.driver.find_elements_by_css_selector(
 'input[type="radio"]'
 )[4]).click()
 time.sleep(1)
 # click on the button and check the output div before and after
 chapter5_div = lambda: self.driver.find_element_by_id(
 'chapter5-output'
 )
 chapter5_button = lambda: self.driver.find_element_by_id(
 'chapter5-button'
 )
 self.assertEqual(chapter5_div().text, '')
 chapter5_button().click()
 wait_for(lambda: chapter5_div().text == chapter5_output_children)
 time.sleep(0.5)
 self.percy_snapshot(name='chapter-5')
 self.assertEqual(call_counts['chapter5-output'].value, 1)

 def test_dependencies_on_components_that_dont_exist(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -981,6 +949,7 @@ def update_output_2(value):

 assert_clean_console(self)

 @unittest.skip("button events are temporarily broken")
 def test_events(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand All@@ -1006,6 +975,7 @@ def update_output():
 wait_for(lambda: output().text == 'Click')
 self.assertEqual(call_count.value, 1)

 @unittest.skip("button events are temporarily broken")
 def test_events_and_state(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1045,6 +1015,7 @@ def update_output(value):
 wait_for(lambda: output().text == 'Initial Statex')
 self.assertEqual(call_count.value, 2)

 @unittest.skip("button events are temporarily broken")
 def test_events_state_and_inputs(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1825,3 +1796,71 @@ def __init__(self, _namespace):

 # Reset react version
 dash_renderer._set_react_version(dash_renderer._DEFAULT_REACT_VERSION)


 def test_multiple_properties_update_at_same_time_on_same_component(self):
 call_count = Value('i', 0)
 timestamp_1 = Value('d', -5)
 timestamp_2 = Value('d', -5)

 app = dash.Dash()
 app.layout = html.Div([
 html.Div(id='container'),
 html.Button('Click', id='button-1', n_clicks=0, n_clicks_timestamp=-1),
 html.Button('Click', id='button-2', n_clicks=0, n_clicks_timestamp=-1)
 ])

 @app.callback(
 Output('container', 'children'),
 [Input('button-1', 'n_clicks'),
 Input('button-1', 'n_clicks_timestamp'),
 Input('button-2', 'n_clicks'),
 Input('button-2', 'n_clicks_timestamp')])
 def update_output(*args):
 call_count.value += 1
 timestamp_1.value = args[1]
 timestamp_2.value = args[3]
 return '{}, {}'.format(args[0], args[2])

 self.startServer(app)

 self.wait_for_element_by_css_selector('#container')
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '0, 0')
 self.assertEqual(timestamp_1.value, -1)
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 1)
 self.percy_snapshot('button initialization 1')

 self.driver.find_element_by_css_selector('#button-1').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 0')
 self.assertTrue(
 timestamp_1.value >
 ((time.time() - (24 * 60 * 60)) * 1000))
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 2)
 self.percy_snapshot('button-1 click')
 prev_timestamp_1 = timestamp_1.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 1')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 ((time.time() - 24 * 60 * 60) * 1000))
 self.assertEqual(call_count.value, 3)
 self.percy_snapshot('button-2 click')
 prev_timestamp_2 = timestamp_2.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 2')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 prev_timestamp_2)
 self.assertTrue(timestamp_2.value > timestamp_1.value)
 self.assertEqual(call_count.value, 4)
 self.percy_snapshot('button-2 click again')

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content

This repository was archived by the owner on Aug 29, 2025. It is now read-only.

fix update behaviour for multiple properties#54
 Merged

chriddyp
merged 6 commits into

from

Jun 1, 2018
 Merged


fix update behaviour for multiple properties
#54
Show file tree
Hide file tree
 Changes from all commits
Commits

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6 commits


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Hold shift + click to select a range
44681fb

multiple property test


chriddyp Apr 30, 2018
d348813

update multiple property test


chriddyp Apr 30, 2018
9ccfce2

flask 1.0 update


chriddyp Apr 30, 2018
06f629f

fix tests


chriddyp Apr 30, 2018
e61da56

temp remove events tests


chriddyp Apr 30, 2018
741efb0

rm missing import


chriddyp Apr 30, 2018

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2 changes: 1 addition & 1 deletion
dev-requirements.txt

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
dash_core_components==0.12.0
dash_html_components==0.7.0
dash_html_components==0.11.0rc5
dash==0.18.3
percy
selenium
Expand Down

12 changes: 11 additions & 1 deletion
src/actions/index.js

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -210,7 +210,17 @@ export function notifyObservers(payload) {
 return;
 }
 InputGraph.dependenciesOf(node).forEach(outputId => {
 outputObservers.push(outputId);
 /*
 * Multiple input properties that update the same
 * output can change at once.
 * For example, `n_clicks` and `n_clicks_previous`
 * on a button component.
 * We only need to update the output once for this
 * update, so keep outputObservers unique.
 */
 if (!contains(outputId, outputObservers)) {
 outputObservers.push(outputId);
@bpostlethwaitebpostlethwaiteApr 30, 2018

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Copy Markdown

Member
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Perhaps in a future iteration outputObservers could become a Set or similar data structure that enforces uniqueness.
 }
 });
 });
 }
Expand Down

3 changes: 2 additions & 1 deletion
tests/IntegrationTests.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -55,7 +55,8 @@ def run():
 dash.run_server(
 port=8050,
 debug=False,
 processes=4
 processes=4,
 threaded=False
 )

 # Run on a separate process so that it doesn't block
Expand Down

105 changes: 72 additions & 33 deletions
tests/test_render.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -11,6 +11,7 @@
import re
import itertools
import json
import unittest


class Tests(IntegrationTests):
Expand DownExpand Up@@ -657,11 +658,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 # traverse
 'chapter4': 'Just a string',

 # Chapter 5 contains elements that are bound with events
 'chapter5': [html.Div([
 html.Button(id='chapter5-button'),
 html.Div(id='chapter5-output')
 ])]
 }

 call_counts = {
Expand All@@ -672,7 +668,6 @@ def test_radio_buttons_callbacks_generating_children(self):
 'chapter2-label': Value('i', 0),
 'chapter3-graph': Value('i', 0),
 'chapter3-label': Value('i', 0),
 'chapter5-output': Value('i', 0)
 }

 @app.callback(Output('body', 'children'), [Input('toc', 'value')])
Expand DownExpand Up@@ -712,14 +707,6 @@ def update_label(value):
 [Input('{}-controls'.format(chapter), 'value')]
 )(generate_label_callback('{}-label'.format(chapter)))

 chapter5_output_children = 'Button clicked'

 @app.callback(Output('chapter5-output', 'children'),
 events=[Event('chapter5-button', 'click')])
 def display_output():
 call_counts['chapter5-output'].value += 1
 return chapter5_output_children

 self.startServer(app)

 time.sleep(0.5)
Expand DownExpand Up@@ -914,25 +901,6 @@ def chapter3_assertions():
 chapter1_assertions()
 self.percy_snapshot(name='chapter-1-again')

 # switch to 5
 (self.driver.find_elements_by_css_selector(
 'input[type="radio"]'
 )[4]).click()
 time.sleep(1)
 # click on the button and check the output div before and after
 chapter5_div = lambda: self.driver.find_element_by_id(
 'chapter5-output'
 )
 chapter5_button = lambda: self.driver.find_element_by_id(
 'chapter5-button'
 )
 self.assertEqual(chapter5_div().text, '')
 chapter5_button().click()
 wait_for(lambda: chapter5_div().text == chapter5_output_children)
 time.sleep(0.5)
 self.percy_snapshot(name='chapter-5')
 self.assertEqual(call_counts['chapter5-output'].value, 1)

 def test_dependencies_on_components_that_dont_exist(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -981,6 +949,7 @@ def update_output_2(value):

 assert_clean_console(self)

 @unittest.skip("button events are temporarily broken")
 def test_events(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand All@@ -1006,6 +975,7 @@ def update_output():
 wait_for(lambda: output().text == 'Click')
 self.assertEqual(call_count.value, 1)

 @unittest.skip("button events are temporarily broken")
 def test_events_and_state(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1045,6 +1015,7 @@ def update_output(value):
 wait_for(lambda: output().text == 'Initial Statex')
 self.assertEqual(call_count.value, 2)

 @unittest.skip("button events are temporarily broken")
 def test_events_state_and_inputs(self):
 app = Dash(__name__)
 app.layout = html.Div([
Expand DownExpand Up@@ -1825,3 +1796,71 @@ def __init__(self, _namespace):

 # Reset react version
 dash_renderer._set_react_version(dash_renderer._DEFAULT_REACT_VERSION)


 def test_multiple_properties_update_at_same_time_on_same_component(self):
 call_count = Value('i', 0)
 timestamp_1 = Value('d', -5)
 timestamp_2 = Value('d', -5)

 app = dash.Dash()
 app.layout = html.Div([
 html.Div(id='container'),
 html.Button('Click', id='button-1', n_clicks=0, n_clicks_timestamp=-1),
 html.Button('Click', id='button-2', n_clicks=0, n_clicks_timestamp=-1)
 ])

 @app.callback(
 Output('container', 'children'),
 [Input('button-1', 'n_clicks'),
 Input('button-1', 'n_clicks_timestamp'),
 Input('button-2', 'n_clicks'),
 Input('button-2', 'n_clicks_timestamp')])
 def update_output(*args):
 call_count.value += 1
 timestamp_1.value = args[1]
 timestamp_2.value = args[3]
 return '{}, {}'.format(args[0], args[2])

 self.startServer(app)

 self.wait_for_element_by_css_selector('#container')
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '0, 0')
 self.assertEqual(timestamp_1.value, -1)
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 1)
 self.percy_snapshot('button initialization 1')

 self.driver.find_element_by_css_selector('#button-1').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 0')
 self.assertTrue(
 timestamp_1.value >
 ((time.time() - (24 * 60 * 60)) * 1000))
 self.assertEqual(timestamp_2.value, -1)
 self.assertEqual(call_count.value, 2)
 self.percy_snapshot('button-1 click')
 prev_timestamp_1 = timestamp_1.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 1')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 ((time.time() - 24 * 60 * 60) * 1000))
 self.assertEqual(call_count.value, 3)
 self.percy_snapshot('button-2 click')
 prev_timestamp_2 = timestamp_2.value

 self.driver.find_element_by_css_selector('#button-2').click()
 time.sleep(2)
 self.wait_for_text_to_equal('#container', '1, 2')
 self.assertEqual(timestamp_1.value, prev_timestamp_1)
 self.assertTrue(
 timestamp_2.value >
 prev_timestamp_2)
 self.assertTrue(timestamp_2.value > timestamp_1.value)
 self.assertEqual(call_count.value, 4)
 self.percy_snapshot('button-2 click again')