piker/tests/test_cli.py

90 lines
2.4 KiB
Python

"""
CLI testing, dawg.
"""
import json
import subprocess
import pytest
import os.path
import logging
def run(cmd):
"""Run cmd and check for zero return code.
"""
cp = subprocess.run(cmd.split())
cp.check_returncode()
return cp
def verify_keys(tickers, quotes_dict):
"""Verify all ticker names are keys in ``quotes_dict``.
"""
for key, quote in quotes_dict.items():
assert key in tickers
@pytest.fixture
def nyse_tickers():
"""List of well known NYSE ticker symbols.
"""
return ('TD', 'CRON', 'TSLA', 'AAPL')
def test_known_quotes(capfd, nyse_tickers):
"""Verify quotes are dumped to the console as json.
"""
run(f"piker quote {' '.join(nyse_tickers)}")
# verify output can be parsed as json
out, err = capfd.readouterr()
quotes_dict = json.loads(out)
verify_keys(nyse_tickers, quotes_dict)
@pytest.mark.parametrize(
'multiple_tickers',
[True, False]
)
def test_quotes_ticker_not_found(
capfd, caplog, nyse_tickers, multiple_tickers
):
"""Verify that if a ticker can't be found it's quote value is
``None`` and a warning log message is emitted to the console.
"""
bad_ticker = ('doggy',)
tickers = bad_ticker + nyse_tickers if multiple_tickers else bad_ticker
run(f"piker quote {' '.join(tickers)}")
out, err = capfd.readouterr()
if out:
# verify output can be parsed as json
quotes_dict = json.loads(out)
verify_keys(tickers, quotes_dict)
# check for warning log message when some quotes are found
warnmsg = f'Could not find symbol {bad_ticker[0]}'
assert warnmsg in err
else:
# when no quotes are found we should get an error message
errmsg = f'No quotes could be found for {bad_ticker}'
assert errmsg in err
def test_api_method(nyse_tickers, capfd):
"""Ensure a low level api method can be called via CLI.
"""
run(f"piker api quotes symbols={','.join(nyse_tickers)}")
out, err = capfd.readouterr()
quotes_dict = json.loads(out)
assert isinstance(quotes_dict, dict)
def test_api_method_not_found(nyse_tickers, capfd):
"""Ensure an error messages is printed when an API method isn't found.
"""
bad_meth = 'doggy'
run(f"piker api {bad_meth} names={' '.join(nyse_tickers)}")
out, err = capfd.readouterr()
assert 'null' in out
assert f'No api method `{bad_meth}` could be found?' in err