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from __future__ import annotations
import re
from operator import add
import pytest
from dask.utils import key_split
from distributed.client import wait
from distributed.spans import span
from distributed.utils_test import dec, gen_cluster, gen_tls_cluster, inc, throws
pytest.importorskip("ipywidgets")
from distributed.diagnostics.progressbar import (
MultiProgressWidget,
ProgressWidget,
progress,
)
@gen_cluster(client=True)
async def test_progressbar_widget(c, s, a, b):
x = c.submit(inc, 1)
y = c.submit(inc, x)
z = c.submit(inc, y)
await wait(z)
progress = ProgressWidget([z.key], scheduler=s.address, complete=True)
await progress.listen()
assert progress.bar.value == 1.0
assert "3 / 3" in progress.bar_text.value
progress = ProgressWidget([z.key], scheduler=s.address)
await progress.listen()
@gen_cluster(client=True)
async def test_multi_progressbar_widget(c, s, a, b):
x1 = c.submit(inc, 1)
x2 = c.submit(inc, x1)
x3 = c.submit(inc, x2)
y1 = c.submit(dec, x3)
y2 = c.submit(dec, y1)
e = c.submit(throws, y2)
other = c.submit(inc, 123)
await wait([other, e])
p = MultiProgressWidget([e.key], scheduler=s.address, complete=True)
await p.listen()
assert p.bars["inc"].value == 1.0
assert p.bars["dec"].value == 1.0
assert p.bars["throws"].value == 0.0
assert "3 / 3" in p.bar_texts["inc"].value
assert "2 / 2" in p.bar_texts["dec"].value
assert "0 / 1" in p.bar_texts["throws"].value
assert p.bars["inc"].bar_style == "success"
assert p.bars["dec"].bar_style == "success"
assert p.bars["throws"].bar_style == "danger"
assert p.status == "error"
assert "Exception" in p.elapsed_time.value
try:
throws(1)
except Exception as e:
assert repr(e) in p.elapsed_time.value
capacities = [
int(re.search(r"\d+ / \d+", row.children[0].value).group().split(" / ")[1])
for row in p.bar_widgets.children
]
assert sorted(capacities, reverse=True) == capacities
def test_values(client):
L = [client.submit(inc, i) for i in range(5)]
wait(L)
p = MultiProgressWidget(L)
client.sync(p.listen)
assert set(p.bars) == {"inc"}
assert p.status == "finished"
assert p.comm.closed()
assert "5 / 5" in p.bar_texts["inc"].value
assert p.bars["inc"].value == 1.0
x = client.submit(throws, 1)
p = MultiProgressWidget([x])
client.sync(p.listen)
assert p.status == "error"
def test_progressbar_done(client):
L = [client.submit(inc, i) for i in range(5)]
wait(L)
p = ProgressWidget(L)
client.sync(p.listen)
assert p.status == "finished"
assert p.bar.value == 1.0
assert p.bar.bar_style == "success"
assert "Finished" in p.elapsed_time.value
f = client.submit(throws, L)
wait([f])
p = ProgressWidget([f])
client.sync(p.listen)
assert p.status == "error"
assert p.bar.value == 0.0
assert p.bar.bar_style == "danger"
assert "Exception" in p.elapsed_time.value
try:
throws(1)
except Exception as e:
assert repr(e) in p.elapsed_time.value
def test_progressbar_cancel(client):
import time
L = [client.submit(lambda: time.sleep(0.3), i) for i in range(5)]
p = ProgressWidget(L)
client.sync(p.listen)
L[-1].cancel()
wait(L[:-1])
assert p.status == "error"
assert p.bar.value == 0 # no tasks finish before cancel is called
@gen_cluster(client=True)
async def test_multibar_complete(c, s, a, b):
x1 = c.submit(inc, 1, key="x-1")
x2 = c.submit(inc, x1, key="x-2")
x3 = c.submit(inc, x2, key="x-3")
y1 = c.submit(dec, x3, key="y-1")
y2 = c.submit(dec, y1, key="y-2")
e = c.submit(throws, y2, key="e")
other = c.submit(inc, 123, key="other")
await other.cancel()
p = MultiProgressWidget([e.key], scheduler=s.address, complete=True)
await p.listen()
assert p._last_response["all"] == {"x": 3, "y": 2, "e": 1}
assert all(b.value == 1.0 for k, b in p.bars.items() if k != "e")
assert "3 / 3" in p.bar_texts["x"].value
assert "2 / 2" in p.bar_texts["y"].value
def test_fast(client):
L = client.map(inc, range(100))
L2 = client.map(dec, L)
L3 = client.map(add, L, L2)
p = progress(L3, multi=True, complete=True, notebook=True)
client.sync(p.listen)
assert set(p._last_response["all"]) == {"inc", "dec", "add"}
def test_multibar_with_spans(client):
"""Test progress(group_by='spans'"""
with span("span 1"):
L = client.map(inc, range(100))
with span("span 2"):
L2 = client.map(dec, L)
with span("span 3"):
L3 = client.map(add, L, L2)
with span("other span"):
_ = client.submit(inc, 123)
e = client.submit(throws, L3)
p = progress(e, complete=True, multi=True, notebook=True, group_by="spans")
client.sync(p.listen)
# keys are tuples of (group_name, group_id), just get names
bar_items = {k[0]: v.value for k, v in p.bars.items()}
bar_texts = {k[0]: v.value for k, v in p.bar_texts.items()}
bar_labels = {k[0]: v.value for k, v in p.bar_labels.items()}
assert bar_items == {"span 1": 1, "span 2": 1, "span 3": 1, "default": 0}
assert bar_texts.keys() == {"span 1", "span 2", "span 3", "default"}
assert all("100 / 100" in v for k, v in bar_texts.items() if k != "default")
assert bar_labels.keys() == {"span 1", "span 2", "span 3", "default"}
assert all(f">{k}<" in v for k, v in bar_labels.items())
def test_multibar_func_warns(client):
"""Deprecate `func`, use `group_by`"""
L = client.map(inc, range(100))
L2 = client.map(dec, L)
L3 = client.map(add, L, L2)
# ensure default value if nothing is set
p = MultiProgressWidget(L3)
assert p.group_by == key_split
with pytest.warns(
DeprecationWarning, match="`func` is deprecated, use `group_by` instead"
):
MultiProgressWidget(L3, func="foo")
@gen_cluster(client=True, client_kwargs={"serializers": ["msgpack"]})
async def test_serializers(c, s, a, b):
x = c.submit(inc, 1)
y = c.submit(inc, x)
z = c.submit(inc, y)
await wait(z)
progress = ProgressWidget([z], scheduler=s.address, complete=True)
await progress.listen()
assert progress.bar.value == 1.0
assert "3 / 3" in progress.bar_text.value
@gen_tls_cluster(client=True)
async def test_tls(c, s, a, b):
x = c.submit(inc, 1)
y = c.submit(inc, x)
z = c.submit(inc, y)
await wait(z)
progress = ProgressWidget([z], scheduler=s.address, complete=True)
await progress.listen()
assert progress.bar.value == 1.0
assert "3 / 3" in progress.bar_text.value
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