e2e_playwright/st_spinner.py - develop - vshmidt/streamlit

e2e_playwright/st_spinner.py
99 строк3 KB
Ken McGrady
Fix TransientNode not capturing BlockNode as anchor when replacing (#13674)
22 янв 2026, 21:30
22 янв 2026, 21:30661cf4f
# Copyright (c) Streamlit Inc. (2018-2022) Snowflake Inc. (2022-2026)
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import time

import streamlit as st

# A spinner always requires a computation to run for a certain time
# Therefore, we add a button to allow triggering the spinner during the test execution.
if st.button("Run spinner basic"):
    with st.spinner("Loading..."):
        time.sleep(2)

if st.button("Run spinner with time"):
    with st.spinner("Loading...", show_time=True):
        time.sleep(2)

if st.button("Run double spinner"):
    with st.spinner("Loading..."):
        with st.spinner("Also loading..."):
            time.sleep(3)

        time.sleep(3)

if st.button("Run markdown updated with spinner"):
    placeholder = st.markdown("Some Text")
    with placeholder.spinner("something"):
        time.sleep(2)

if st.button("Run spinner in with st.empty block"):
    with st.empty():
        with st.spinner("spinner in empty block"):
            time.sleep(2)
            st.markdown("Some More Text")

if st.button("Run spinner in fragment"):

    @st.fragment
    def test_fragment():
        with st.spinner("Loading..."):
            time.sleep(2)

        st.button("Run fragment")

    test_fragment()


if st.button("Run spinner before fragment"):
    with st.spinner("Loading..."):
        time.sleep(2)

        @st.fragment
        def test_fragment():
            st.button("Run fragment")

        test_fragment()

st.header("Spinner - width examples")

if st.button("Run spinner with content width (default)"):
    with st.spinner("Loading with content width...", width="content"):
        time.sleep(2)

if st.button("Run spinner with stretch width"):
    with st.spinner("Loading with stretch width...", width="stretch"):
        time.sleep(2)

if st.button("Run spinner with 300px width"):
    with st.spinner(
        "Loading with 300px width.... the text is long and does not fit in the width",
        width=300,
    ):
        time.sleep(2)

# Regression test for issue #13658: container elements in spinner context
if st.button("Run spinner with container"):
    with st.spinner("Running..."):
        time.sleep(2)  # Small delay to trigger spinner rendering
        cols = st.container().columns(2)
        cols[0].write("Column 1")
        cols[1].write("Column 2")

# Regression test for transient node replacing block node
if st.button("Run spinner with delayed container write"):
    with st.spinner("Processing..."):
        container = st.container()
        time.sleep(2)  # Container exists but is empty when spinner renders
        container.write("Hello World")