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pyscript/pyscript.core/tests/integration/test_async.py
Antonio Cuni 4256a81653 run pre-commit on all files (#1789)
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During the process, ruff broke the code because it removed an "unused" import which was actually used.
A linter which breaks my code is a linter which I cannot trust, so I just removed it. I re-enabled isort instead.
2023-10-05 15:10:31 +02:00

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6.5 KiB
Python

import pytest
from .support import PyScriptTest, filter_inner_text, only_main
class TestAsync(PyScriptTest):
# ensure_future() and create_task() should behave similarly;
# we'll use the same source code to test both
coroutine_script = """
<script type="py">
import js
import asyncio
js.console.log("first")
async def main():
await asyncio.sleep(1)
js.console.log("third")
asyncio.{func}(main())
js.console.log("second")
</script>
"""
def test_asyncio_ensure_future(self):
self.pyscript_run(self.coroutine_script.format(func="ensure_future"))
self.wait_for_console("third")
assert self.console.log.lines[-3:] == ["first", "second", "third"]
def test_asyncio_create_task(self):
self.pyscript_run(self.coroutine_script.format(func="create_task"))
self.wait_for_console("third")
assert self.console.log.lines[-3:] == ["first", "second", "third"]
def test_asyncio_gather(self):
self.pyscript_run(
"""
<script type="py" id="pys">
import asyncio
import js
from pyodide.ffi import to_js
async def coro(delay):
await asyncio.sleep(delay)
return(delay)
async def get_results():
results = await asyncio.gather(*[coro(d) for d in range(3,0,-1)])
js.console.log(str(results)) #Compare to string representation, not Proxy
js.console.log("DONE")
asyncio.ensure_future(get_results())
</script>
"""
)
self.wait_for_console("DONE")
assert self.console.log.lines[-2:] == ["[3, 2, 1]", "DONE"]
@only_main
def test_multiple_async(self):
self.pyscript_run(
"""
<script type="py">
import js
import asyncio
async def a_func():
for i in range(3):
js.console.log('A', i)
await asyncio.sleep(0.1)
asyncio.ensure_future(a_func())
</script>
<script type="py">
import js
import asyncio
async def b_func():
for i in range(3):
js.console.log('B', i)
await asyncio.sleep(0.1)
js.console.log('b func done')
asyncio.ensure_future(b_func())
</script>
"""
)
self.wait_for_console("b func done")
assert self.console.log.lines == [
"A 0",
"B 0",
"A 1",
"B 1",
"A 2",
"B 2",
"b func done",
]
@only_main
def test_multiple_async_multiple_display_targeted(self):
self.pyscript_run(
"""
<script type="py" id="pyA">
from pyscript import display
import js
import asyncio
async def a_func():
for i in range(2):
display(f'A{i}', target='pyA', append=True)
js.console.log("A", i)
await asyncio.sleep(0.1)
asyncio.ensure_future(a_func())
</script>
<script type="py" id="pyB">
from pyscript import display
import js
import asyncio
async def a_func():
for i in range(2):
display(f'B{i}', target='pyB', append=True)
js.console.log("B", i)
await asyncio.sleep(0.1)
js.console.log("B DONE")
asyncio.ensure_future(a_func())
</script>
"""
)
self.wait_for_console("B DONE")
inner_text = self.page.inner_text("html")
assert "A0\nA1\nB0\nB1" in filter_inner_text(inner_text)
def test_async_display_untargeted(self):
self.pyscript_run(
"""
<script type="py">
from pyscript import display
import asyncio
import js
async def a_func():
display('A')
await asyncio.sleep(1)
js.console.log("DONE")
asyncio.ensure_future(a_func())
</script>
"""
)
self.wait_for_console("DONE")
assert self.page.locator("script-py").inner_text() == "A"
@only_main
def test_sync_and_async_order(self):
"""
The order of execution is defined as follows:
1. first, we execute all the script tags in order
2. then, we start all the tasks which were scheduled with create_task
Note that tasks are started *AFTER* all py-script tags have been
executed. That's why the console.log() inside mytask1 and mytask2 are
executed after e.g. js.console.log("6").
"""
src = """
<script type="py">
import js
js.console.log("1")
</script>
<script type="py">
import asyncio
import js
async def mytask1():
js.console.log("7")
await asyncio.sleep(0)
js.console.log("9")
js.console.log("2")
asyncio.create_task(mytask1())
js.console.log("3")
</script>
<script type="py">
import js
js.console.log("4")
</script>
<script type="py">
import asyncio
import js
async def mytask2():
js.console.log("8")
await asyncio.sleep(0)
js.console.log("10")
js.console.log("DONE")
js.console.log("5")
asyncio.create_task(mytask2())
js.console.log("6")
</script>
"""
self.pyscript_run(src, wait_for_pyscript=False)
self.wait_for_console("DONE")
lines = self.console.log.lines[-11:]
assert lines == ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "DONE"]