62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
"""
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Actor model API testing
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"""
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import pytest
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import tractor
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async def rx_price_quotes_from_brokerd(us_symbols):
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"""Verify we can spawn a daemon actor and retrieve streamed price data.
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"""
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async with tractor.find_actor('brokerd') as portals:
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if not portals:
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# only one per host address, spawns an actor if None
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async with tractor.open_nursery() as nursery:
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# no brokerd actor found
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portal = await nursery.start_actor(
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'brokerd',
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rpc_module_paths=['piker.brokers.data'],
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statespace={
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'broker2tickersubs': {},
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'clients': {},
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'dtasks': set()
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},
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)
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# gotta expose in a broker agnostic way...
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# retrieve initial symbol data
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# sd = await portal.run(
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# 'piker.brokers.data', 'symbol_data', symbols=us_symbols)
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# assert list(sd.keys()) == us_symbols
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gen = await portal.run(
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'piker.brokers.data',
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'start_quote_stream',
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broker='robinhood',
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tickers=us_symbols,
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)
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# it'd sure be nice to have an asyncitertools here...
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async for quotes in gen:
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assert quotes
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for key in quotes:
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assert key in us_symbols
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break
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# terminate far-end async-gen
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# await gen.asend(None)
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# break
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# stop all spawned subactors
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await nursery.cancel()
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# arbitter is cancelled here due to `find_actors()` internals
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# (which internally uses `get_arbiter` which kills its channel
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# server scope on exit)
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def test_rx_price_quotes_from_brokerd(us_symbols):
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tractor.run(
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rx_price_quotes_from_brokerd,
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us_symbols,
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name='arbiter',
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)
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