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test_time_series_utils_forecasting.py
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test_time_series_utils_forecasting.py
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"""Module to test time_series forecasting utils
"""
import pytest
from pycaret.utils.time_series.forecasting import _check_and_clean_coverage
pytestmark = pytest.mark.filterwarnings("ignore::UserWarning")
##############################
#### Functions Start Here ####
##############################
# NOTE: Fixtures can not be used to parameterize tests
# https://stackoverflow.com/questions/52764279/pytest-how-to-parametrize-a-test-with-a-list-that-is-returned-from-a-fixture
# Hence, we have to create functions and create the parameterized list first
# (must happen during collect phase) before passing it to mark.parameterize.
############################
#### Functions End Here ####
############################
##########################
#### Tests Start Here ####
##########################
def test_check_and_clean_coverage():
"""Tests _check_and_clean_coverage"""
#### Tests floating point value ----
coverage = 0.9
coverage = _check_and_clean_coverage(coverage=coverage)
coverage = [round(value, 2) for value in coverage]
assert isinstance(coverage, list)
assert coverage == [0.05, 0.95]
#### Tests List values (sorted) ----
coverage_expected = [0.1, 0.9]
coverage = _check_and_clean_coverage(coverage=coverage_expected)
assert isinstance(coverage, list)
assert coverage == coverage_expected
#### Tests List values (unsorted) ----
coverage = [0.9, 0.1]
coverage = _check_and_clean_coverage(coverage=coverage)
assert isinstance(coverage, list)
assert coverage == coverage_expected
#### Tests List values (incorrect length 1) ----
with pytest.raises(ValueError) as errmsg:
coverage = [0.1]
coverage = _check_and_clean_coverage(coverage=coverage)
exceptionmsg = errmsg.value.args[0]
assert (
"When coverage is a list, it must be of length 2 corresponding to"
in exceptionmsg
)
#### Tests List values (incorrect length 2) ----
with pytest.raises(ValueError) as errmsg:
coverage = [0.1, 0.5, 0.9]
coverage = _check_and_clean_coverage(coverage=coverage)
exceptionmsg = errmsg.value.args[0]
assert (
"When coverage is a list, it must be of length 2 corresponding to"
in exceptionmsg
)
#### Tests incorrect types ----
with pytest.raises(TypeError) as errmsg:
coverage = None
coverage = _check_and_clean_coverage(coverage=coverage)
exceptionmsg = errmsg.value.args[0]
assert (
"'coverage' must be of type float or a List of floats of length 2."
in exceptionmsg
)