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90 lines
2.3 KiB
90 lines
2.3 KiB
1 year ago
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"""
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Hypothesis data generator helpers.
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"""
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from datetime import datetime
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from hypothesis import strategies as st
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from hypothesis.extra.dateutil import timezones as dateutil_timezones
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from hypothesis.extra.pytz import timezones as pytz_timezones
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from pandas.compat import is_platform_windows
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import pandas as pd
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from pandas.tseries.offsets import (
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BMonthBegin,
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BMonthEnd,
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BQuarterBegin,
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BQuarterEnd,
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BYearBegin,
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BYearEnd,
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MonthBegin,
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MonthEnd,
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QuarterBegin,
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QuarterEnd,
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YearBegin,
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YearEnd,
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)
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OPTIONAL_INTS = st.lists(st.one_of(st.integers(), st.none()), max_size=10, min_size=3)
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OPTIONAL_FLOATS = st.lists(st.one_of(st.floats(), st.none()), max_size=10, min_size=3)
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OPTIONAL_TEXT = st.lists(st.one_of(st.none(), st.text()), max_size=10, min_size=3)
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OPTIONAL_DICTS = st.lists(
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st.one_of(st.none(), st.dictionaries(st.text(), st.integers())),
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max_size=10,
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min_size=3,
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)
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OPTIONAL_LISTS = st.lists(
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st.one_of(st.none(), st.lists(st.text(), max_size=10, min_size=3)),
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max_size=10,
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min_size=3,
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)
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OPTIONAL_ONE_OF_ALL = st.one_of(
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OPTIONAL_DICTS, OPTIONAL_FLOATS, OPTIONAL_INTS, OPTIONAL_LISTS, OPTIONAL_TEXT
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)
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if is_platform_windows():
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DATETIME_NO_TZ = st.datetimes(min_value=datetime(1900, 1, 1))
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else:
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DATETIME_NO_TZ = st.datetimes()
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DATETIME_JAN_1_1900_OPTIONAL_TZ = st.datetimes(
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min_value=pd.Timestamp(1900, 1, 1).to_pydatetime(),
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max_value=pd.Timestamp(1900, 1, 1).to_pydatetime(),
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timezones=st.one_of(st.none(), dateutil_timezones(), pytz_timezones()),
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)
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DATETIME_IN_PD_TIMESTAMP_RANGE_NO_TZ = st.datetimes(
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min_value=pd.Timestamp.min.to_pydatetime(warn=False),
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max_value=pd.Timestamp.max.to_pydatetime(warn=False),
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)
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INT_NEG_999_TO_POS_999 = st.integers(-999, 999)
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# The strategy for each type is registered in conftest.py, as they don't carry
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# enough runtime information (e.g. type hints) to infer how to build them.
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YQM_OFFSET = st.one_of(
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*map(
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st.from_type,
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[
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MonthBegin,
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MonthEnd,
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BMonthBegin,
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BMonthEnd,
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QuarterBegin,
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QuarterEnd,
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BQuarterBegin,
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BQuarterEnd,
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YearBegin,
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YearEnd,
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BYearBegin,
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BYearEnd,
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],
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)
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)
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