class TestToEquispacedTimeSeries:
@given(
series_with_period_index(), st.datetimes(), available_freqs(), st.text(),
)
def test_with_resample_false(
self, series: pd.Series, start: datetime, freq: pd.Timedelta, output_name: str,
):
time_series_preparation = TimeSeriesPreparation(
start=start,
freq=freq,
resample_if_not_equispaced=False,
output_name=output_name,
)
computed_series = time_series_preparation._to_equispaced_time_series(series)
assert_series_equal(computed_series, series)
@given(series_with_period_index(), st.datetimes(), available_freqs(), st.text())
def test_with_resample_true(
self, series: pd.Series, start: datetime, freq: pd.Timedelta, output_name: str,
):
time_series_preparation = TimeSeriesPreparation(
start=start,
freq=freq,
resample_if_not_equispaced=True,
output_name=output_name,
)
with pytest.raises(NotImplementedError):
time_series_preparation._to_equispaced_time_series(series)
class TestToPeriodIndex:
@settings(suppress_health_check=[HealthCheck.filter_too_much])
@given(series_with_period_index())
def test_with_period_index_as_input(self, period_index_series):
time_series_preparation = TimeSeriesPreparation()
computed_time_series = time_series_preparation._to_period_index_time_series(
period_index_series)
assert_series_equal(computed_time_series, period_index_series)
@given(series_with_datetime_index())
def test_with_datetime_index_as_input(self, datetime_index_series):
time_series_preparation = TimeSeriesPreparation()
computed_time_series = time_series_preparation._to_period_index_time_series(
datetime_index_series)
expected_time_series = datetime_index_series_to_period_index_series(
computed_time_series)
assert_series_equal(computed_time_series, expected_time_series)
@given(series_with_timedelta_index())
def test_with_timedelta_index_as_input(self, timedelta_index_series):
time_series_preparation = TimeSeriesPreparation()
computed_time_series = time_series_preparation._to_period_index_time_series(
timedelta_index_series)
expected_time_series = timedelta_index_series_to_period_index_series(
timedelta_index_series)
assert_series_equal(computed_time_series, expected_time_series)
class TestToPeriodIndexDataFrame:
@given(series_with_period_index(), st.text())
def test_output_dataframe_is_correct(self, period_index_series: pd.Series,
output_name: str):
time_series_preparation = TimeSeriesPreparation(
output_name=output_name)
computed_time_series = time_series_preparation._to_period_index_dataframe(
period_index_series)
expected_time_series = pd.DataFrame({output_name: period_index_series})
assert_frame_equal(computed_time_series, expected_time_series)
class TestPeriodSeries:
@given(series_with_period_index())
def test_period_series_has_period_index(self, series):
assert isinstance(series.index, pd.PeriodIndex)
@given(series_with_period_index(min_length=10, max_length=1000))
def test_period_series_size(self, series):
assert 10 <= len(series.index) <= 1000
@given(series_with_period_index(min_length=10, max_length=10))
def test_period_series_size_fixed_value(self, series):
assert len(series.index) == 10
@given(series_with_period_index(min_length=0, max_length=0))
def test_period_series_size_fixed_value_0(self, series):
assert len(series.index) == 0
@given(series_with_period_index())
def test_period_series_boundaries(self, series):
start_datetime = pd.Period("1979-12-31").to_timestamp()
end_datetime = pd.Period("2020-01-01").to_timestamp()
if len(series):
assert series.index[0].to_timestamp() >= start_datetime
assert series.index[-1].to_timestamp() <= end_datetime
@given(series_with_period_index())
def test_period_series_has_float_values(self, series: pd.Series):
assert series.dtype == "float64"
@given(series_with_period_index(allow_nan=False))
def test_period_series_no_nan(self, series: pd.Series):
assert_series_equal(series, series.dropna())
@given(series_with_period_index(allow_infinity=False))
def test_period_series_no_infinity(self, series: pd.Series):
assert_series_equal(series, series.replace([np.inf, -np.inf], np.nan))
class TestTimeIndexSeriesToPeriodIndexSeries:
@settings(suppress_health_check=(HealthCheck.too_slow, ))
@given(series_with_period_index())
def test_only_period_index_as_input(self, period_index_series: pd.Series):
computed_series = transform_time_index_series_into_period_index_series(
period_index_series)
expected_series = period_index_series
assert_series_equal(computed_series, expected_series)
@given(series_with_period_index(), available_freqs())
def test_period_index_and_freq_as_input(self,
period_index_series: pd.Series,
freq: pd.Timedelta):
computed_series = transform_time_index_series_into_period_index_series(
period_index_series, freq)
expected_series = period_index_series
assert_series_equal(computed_series, expected_series)
@given(series_with_datetime_index())
def test_only_datetime_index_as_input(self,
datetime_index_series: pd.Series):
computed_series = transform_time_index_series_into_period_index_series(
datetime_index_series)
expected_series = datetime_index_series_to_period_index_series(
datetime_index_series)
assert_series_equal(computed_series, expected_series)
@given(series_with_datetime_index(), available_freqs())
def test_datetime_index_and_freq_as_input(self,
datetime_index_series: pd.Series,
freq: pd.Timedelta):
computed_series = transform_time_index_series_into_period_index_series(
datetime_index_series, freq=freq)
expected_series = datetime_index_series_to_period_index_series(
datetime_index_series, freq)
assert_series_equal(computed_series, expected_series)
@given(series_with_timedelta_index())
def test_only_timedelta_index_as_input(self,
timedelta_index_series: pd.Series):
computed_series = transform_time_index_series_into_period_index_series(
timedelta_index_series)
expected_series = timedelta_index_series_to_period_index_series(
timedelta_index_series)
assert_series_equal(computed_series, expected_series)
def test_basic_timedelta_index_as_input(self):
timedelta_index_series = pd.Series(
index=pd.timedelta_range(start=pd.Timedelta(days=1),
freq="10D",
periods=3),
data=[1, 2, 3],
)
expected_series = pd.Series(
index=pd.PeriodIndex(["1970-01-02", "1970-01-12", "1970-01-22"],
freq="D"),
data=[1, 2, 3],
)
computed_series = transform_time_index_series_into_period_index_series(
timedelta_index_series)
assert_series_equal(computed_series, expected_series)
@given(series_with_timedelta_index(), available_freqs())
def test_timedelta_index_and_freq_as_input(
self, timedelta_index_series: pd.Series, freq: pd.Timedelta):
computed_series = transform_time_index_series_into_period_index_series(
timedelta_index_series, freq=freq)
expected_series = timedelta_index_series_to_period_index_series(
timedelta_index_series, freq=freq)
assert_series_equal(computed_series, expected_series)
@given(pd_series(dtype=float))
def test_non_time_index_input(self, series: pd.Series):
with pytest.raises(ValueError):
transform_time_index_series_into_period_index_series(series)
class TestPandasSeriesToTimeIndexSeries:
@given(pd_series(dtype=float), datetimes(DEFAULT_START, DEFAULT_END),
available_freqs())
def test_series_start_freq_as_input(
self,
series: pd.Series,
start: pd.Timestamp,
freq: str,
):
compare_output_of_input_series_to_expected_one(
series,
start=start,
end=None,
freq=freq,
)
@given(pd_series(dtype=float), datetimes(DEFAULT_START, DEFAULT_END),
available_freqs())
def test_series_end_freq_as_input(
self,
series: pd.Series,
end: pd.Timestamp,
freq: str,
):
compare_output_of_input_series_to_expected_one(series,
start=None,
end=end,
freq=freq)
@given(pd_series(dtype=float), pair_of_ordered_dates())
def test_error_with_start_end_as_input(
self,
series: pd.Series,
start_end: Tuple[pd.Timestamp, pd.Timestamp],
):
with pytest.raises(ValueError):
compare_output_of_input_series_to_expected_one(
series,
*start_end,
freq=None,
)
@given(pd_series(dtype=float), pair_of_ordered_dates(), available_freqs())
def test_too_many_parameters(
self,
series: pd.Series,
start_end: Tuple[pd.Timestamp, pd.Timestamp],
freq: str,
):
with pytest.raises(ValueError):
compare_output_of_input_series_to_expected_one(
series,
*start_end,
freq=freq,
)
@given(pd_series(dtype=float), datetimes(DEFAULT_START, DEFAULT_END))
def test_series_and_only_start(
self,
series: pd.Series,
start: pd.Timestamp,
):
compare_output_of_input_series_to_expected_one(series,
start=start,
end=None,
freq=None)
@given(pd_series(dtype=float), datetimes(DEFAULT_START, DEFAULT_END))
def test_series_and_only_end(
self,
series: pd.Series,
end: pd.Timestamp,
):
compare_output_of_input_series_to_expected_one(series,
start=None,
end=end,
freq=None)
@given(pd_series(dtype=float), available_freqs())
def test_series_and_only_freq(
self,
series: pd.Series,
freq: pd.Timedelta,
):
compare_output_of_input_series_to_expected_one(series,
start=None,
end=None,
freq=freq)
@given(pd_series(dtype=float))
def test_only_series(
self,
series: pd.Series,
):
compare_output_of_input_series_to_expected_one(series,
start=None,
end=None,
freq=None)
@given(series_with_timedelta_index())
def test_timedelta_index_as_input(self, timedelta_index_series: pd.Series):
computed_series = transform_series_into_time_index_series(
timedelta_index_series)
expected_series = timedelta_index_series
assert_series_equal(computed_series, expected_series)
@given(series_with_datetime_index())
def test_datetime_index_as_input(self, datetime_index_series: pd.Series):
computed_series = transform_series_into_time_index_series(
datetime_index_series)
expected_series = datetime_index_series
assert_series_equal(computed_series, expected_series)
@given(series_with_period_index())
def test_period_index_as_input(self, period_index_series: pd.Series):
computed_series = transform_series_into_time_index_series(
period_index_series)
expected_series = period_index_series
assert_series_equal(computed_series, expected_series)
class TestToTimeIndexSeries:
@given(st.lists(st.floats()), st.datetimes(), available_freqs())
def test_list_as_input(
self,
input_list: pd.Series,
start: pd.datetime,
freq: pd.Timedelta,
):
time_series_preparation = TimeSeriesPreparation(start=start, freq=freq)
computed_time_series = time_series_preparation._to_time_index_series(
input_list)
expected_time_series = pandas_series_with_period_index(input_list,
start,
freq=freq)
assert_series_equal(computed_time_series, expected_time_series)
@given(
arrays(shape=st.integers(0, 1000), dtype=float),
st.datetimes(),
available_freqs(),
)
def test_array_as_input(
self,
input_array: np.ndarray,
start: pd.datetime,
freq: pd.Timedelta,
):
time_series_preparation = TimeSeriesPreparation(start=start, freq=freq)
computed_time_series = time_series_preparation._to_time_index_series(
input_array)
expected_time_series = pandas_series_with_period_index(input_array,
start,
freq=freq)
assert_series_equal(computed_time_series, expected_time_series)
@given(series_with_period_index(), st.datetimes(), available_freqs())
def test_period_index_series_unchanged(
self,
period_index_series: pd.Series,
start: pd.datetime,
freq: pd.Timedelta,
):
time_series_preparation = TimeSeriesPreparation(start=start, freq=freq)
computed_time_series = time_series_preparation._to_time_index_series(
period_index_series)
assert_series_equal(computed_time_series, period_index_series)
@given(series_with_datetime_index(), st.datetimes(), available_freqs())
def test_datetime_index_series_unchanged(
self,
datetime_index_series: pd.Series,
start: pd.datetime,
freq: pd.Timedelta,
):
time_series_preparation = TimeSeriesPreparation(start=start, freq=freq)
computed_time_series = time_series_preparation._to_time_index_series(
datetime_index_series)
assert_series_equal(computed_time_series, datetime_index_series)
@given(series_with_timedelta_index(), st.datetimes(), available_freqs())
def test_timedelta_index_series_unchanged(
self,
timedelta_index_series: pd.Series,
start: pd.datetime,
freq: pd.Timedelta,
):
time_series_preparation = TimeSeriesPreparation(start=start, freq=freq)
computed_time_series = time_series_preparation._to_time_index_series(
timedelta_index_series)
assert_series_equal(computed_time_series, timedelta_index_series)
@given(st.tuples())
def test_wrong_input_type(self, wrong_input: Tuple):
time_series_preparation = TimeSeriesPreparation()
with pytest.raises(TypeError):
time_series_preparation._to_time_index_series(wrong_input)
@given(series_with_period_index(), st.datetimes(), available_freqs())
def test_period_index_dataframe_unchanged(
self,
period_index_series: pd.Series,
start: pd.datetime,
freq: pd.Timedelta,
):
period_index_dataframe = pd.DataFrame(period_index_series)
time_series_preparation = TimeSeriesPreparation(start=start, freq=freq)
computed_time_series = time_series_preparation._to_time_index_series(
period_index_dataframe)
assert_series_equal(computed_time_series, period_index_series)
@given(series_with_datetime_index(), st.datetimes(), available_freqs())
def test_datetime_index_dataframe_unchanged(
self,
datetime_index_series: pd.Series,
start: pd.datetime,
freq: pd.Timedelta,
):
datetime_index_dataframe = pd.DataFrame(datetime_index_series)
time_series_preparation = TimeSeriesPreparation(start=start, freq=freq)
computed_time_series = time_series_preparation._to_time_index_series(
datetime_index_dataframe)
assert_series_equal(computed_time_series, datetime_index_series)
@given(series_with_timedelta_index(), st.datetimes(), available_freqs())
def test_timedelta_index_dataframe_unchanged(
self,
timedelta_index_series: pd.Series,
start: pd.datetime,
freq: pd.Timedelta,
):
timedelta_index_dataframe = pd.DataFrame(timedelta_index_series)
time_series_preparation = TimeSeriesPreparation(start=start, freq=freq)
computed_time_series = time_series_preparation._to_time_index_series(
timedelta_index_dataframe)
assert_series_equal(computed_time_series, timedelta_index_series)
class TestTransform:
@given(st.lists(st.floats()), st.datetimes(), available_freqs(), st.text())
def test_list_as_input(
self,
input_list: pd.Series,
start: pd.datetime,
freq: pd.Timedelta,
output_name: str,
):
time_series_preparation = TimeSeriesPreparation(
start=start, freq=freq, output_name=output_name)
computed_time_series = time_series_preparation.transform(input_list)
expected_series = pandas_series_with_period_index(input_list,
start,
freq=freq)
expected_time_series = pd.DataFrame({output_name: expected_series})
assert_frame_equal(computed_time_series, expected_time_series)
@given(
arrays(shape=st.integers(0, 1000), dtype=float),
st.datetimes(),
available_freqs(),
st.text(),
)
def test_array_as_input(
self,
input_array: np.ndarray,
start: pd.datetime,
freq: pd.Timedelta,
output_name: str,
):
time_series_preparation = TimeSeriesPreparation(
start=start, freq=freq, output_name=output_name)
computed_time_series = time_series_preparation.transform(input_array)
expected_series = pandas_series_with_period_index(input_array,
start,
freq=freq)
expected_time_series = pd.DataFrame({output_name: expected_series})
assert_frame_equal(computed_time_series, expected_time_series)
@given(series_with_period_index(), st.datetimes(), available_freqs(),
st.text())
def test_period_index_as_input(
self,
period_index_series: pd.Series,
start: pd.datetime,
freq: pd.Timedelta,
output_name: str,
):
time_series_preparation = TimeSeriesPreparation(
start=start, freq=freq, output_name=output_name)
computed_time_series = time_series_preparation.transform(
period_index_series)
expected_time_series = pd.DataFrame({output_name: period_index_series})
assert_frame_equal(computed_time_series, expected_time_series)
@given(series_with_datetime_index(), st.datetimes(), available_freqs(),
st.text())
def test_datetime_index_as_input(
self,
datetime_index_series: pd.Series,
start: pd.datetime,
freq: pd.Timedelta,
output_name: str,
):
time_series_preparation = TimeSeriesPreparation(
start=start, freq=freq, output_name=output_name)
computed_time_series = time_series_preparation.transform(
datetime_index_series)
expected_series = datetime_index_series_to_period_index_series(
datetime_index_series, freq=freq)
expected_time_series = pd.DataFrame({output_name: expected_series})
assert_frame_equal(computed_time_series, expected_time_series)
@given(series_with_timedelta_index(), st.datetimes(), available_freqs(),
st.text())
def test_timedelta_index_as_input(
self,
timedelta_index_series: pd.Series,
start: pd.datetime,
freq: pd.Timedelta,
output_name: str,
):
time_series_preparation = TimeSeriesPreparation(
start=start, freq=freq, output_name=output_name)
computed_time_series = time_series_preparation.transform(
timedelta_index_series)
expected_series = timedelta_index_series_to_period_index_series(
timedelta_index_series, freq=freq)
expected_time_series = pd.DataFrame({output_name: expected_series})
assert_frame_equal(computed_time_series, expected_time_series)
