def test_misuse():
assert not greenback.has_portal() # shouldn't raise an error
with pytest.raises(RuntimeError,
match="only supported.*running under Trio"):
anyio.run(greenback.with_portal_run_tree,
anyio.sleep,
1,
backend="asyncio")
with pytest.raises(sniffio.AsyncLibraryNotFoundError):
greenback.await_(42)
@trio.run
async def wrong_library():
sniffio.current_async_library_cvar.set("tokio")
with pytest.raises(RuntimeError,
match="greenback does not support tokio"):
greenback.await_(trio.sleep(1))
@trio.run
async def not_awaitable():
await greenback.ensure_portal()
with pytest.raises(TypeError,
match="int can't be used in 'await' expression"):
greenback.await_(42)
def test_misuse():
with pytest.raises(sniffio.AsyncLibraryNotFoundError):
greenback.await_(42)
@trio.run
async def wrong_library():
sniffio.current_async_library_cvar.set("tokio")
with pytest.raises(RuntimeError, match="greenback does not support tokio"):
greenback.await_(trio.sleep(1))
@trio.run
async def not_awaitable():
await greenback.ensure_portal()
with pytest.raises(TypeError, match="int can't be used in 'await' expression"):
greenback.await_(42)
async def not_awaitable():
await greenback.ensure_portal()
with pytest.raises(TypeError,
match="int can't be used in 'await' expression"):
greenback.await_(42)
async def wrong_library():
sniffio.current_async_library_cvar.set("tokio")
with pytest.raises(RuntimeError,
match="greenback does not support tokio"):
greenback.await_(trio.sleep(1))
async def main():
# Baseline: checkpoint with no greenback involved.
await timeit("checkpoints", busy)
# Greenback portal installed, but calling checkpoint normally.
await timeit("checkpoints in one portal", greenback.with_portal_run, busy)
# Greenback portal installed, calling checkpoint through await_ each time.
await timeit("await_(checkpoint)s in one portal", greenback.with_portal_run, adapt_sync, sync_busy)
# Greenback portal installed, calling checkpoint many times in a single await_.
await timeit("checkpoints in one (portal + await_)", greenback.with_portal_run, adapt_sync, lambda: await_(busy()))
# Simpler portal from with_portal_run_sync(), calling checkpoint through await_.
await timeit("await_(checkpoint)s in one sync portal", greenback.with_portal_run_sync, sync_busy)
# Create one with_portal_run() portal per checkpoint, and await_ the checkpoint.
await timeit("[async portal + await_ + checkpoint]s", each_busy)
# Create one with_portal_run_sync() portal per checkpoint, and await_ the checkpoint.
await timeit("[sync portal + await_ + checkpoint]s", each_sync_busy)
# Create one with_portal_run() portal per checkpoint, and await_ the checkpoint.
await timeit("async portal creations", each_pass)
# Create one with_portal_run_sync() portal per checkpoint, and await_ the checkpoint.
await timeit("sync portal creations", each_sync_pass)
def step():
await_(checkpoint())
def sync_busy():
for _ in range(ITERS):
await_(checkpoint())