mirror of
https://github.com/PiBrewing/craftbeerpi4.git
synced 2024-12-12 16:35:02 +01:00
228 lines
6.4 KiB
Python
228 lines
6.4 KiB
Python
"""
|
|
Tests for Timestamp parsing, aimed at pandas/_libs/tslibs/parsing.pyx
|
|
"""
|
|
from datetime import datetime
|
|
import re
|
|
|
|
from dateutil.parser import parse
|
|
import numpy as np
|
|
import pytest
|
|
|
|
from pandas._libs.tslibs import parsing
|
|
from pandas._libs.tslibs.parsing import parse_time_string
|
|
import pandas.util._test_decorators as td
|
|
|
|
import pandas._testing as tm
|
|
|
|
|
|
def test_parse_time_string():
|
|
(parsed, reso) = parse_time_string("4Q1984")
|
|
(parsed_lower, reso_lower) = parse_time_string("4q1984")
|
|
|
|
assert reso == reso_lower
|
|
assert parsed == parsed_lower
|
|
|
|
|
|
def test_parse_time_string_invalid_type():
|
|
# Raise on invalid input, don't just return it
|
|
msg = "Argument 'arg' has incorrect type (expected str, got tuple)"
|
|
with pytest.raises(TypeError, match=re.escape(msg)):
|
|
parse_time_string((4, 5))
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"dashed,normal", [("1988-Q2", "1988Q2"), ("2Q-1988", "2Q1988")]
|
|
)
|
|
def test_parse_time_quarter_with_dash(dashed, normal):
|
|
# see gh-9688
|
|
(parsed_dash, reso_dash) = parse_time_string(dashed)
|
|
(parsed, reso) = parse_time_string(normal)
|
|
|
|
assert parsed_dash == parsed
|
|
assert reso_dash == reso
|
|
|
|
|
|
@pytest.mark.parametrize("dashed", ["-2Q1992", "2-Q1992", "4-4Q1992"])
|
|
def test_parse_time_quarter_with_dash_error(dashed):
|
|
msg = f"Unknown datetime string format, unable to parse: {dashed}"
|
|
|
|
with pytest.raises(parsing.DateParseError, match=msg):
|
|
parse_time_string(dashed)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"date_string,expected",
|
|
[
|
|
("123.1234", False),
|
|
("-50000", False),
|
|
("999", False),
|
|
("m", False),
|
|
("T", False),
|
|
("Mon Sep 16, 2013", True),
|
|
("2012-01-01", True),
|
|
("01/01/2012", True),
|
|
("01012012", True),
|
|
("0101", True),
|
|
("1-1", True),
|
|
],
|
|
)
|
|
def test_does_not_convert_mixed_integer(date_string, expected):
|
|
assert parsing._does_string_look_like_datetime(date_string) is expected
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"date_str,kwargs,msg",
|
|
[
|
|
(
|
|
"2013Q5",
|
|
dict(),
|
|
(
|
|
"Incorrect quarterly string is given, "
|
|
"quarter must be between 1 and 4: 2013Q5"
|
|
),
|
|
),
|
|
# see gh-5418
|
|
(
|
|
"2013Q1",
|
|
dict(freq="INVLD-L-DEC-SAT"),
|
|
(
|
|
"Unable to retrieve month information "
|
|
"from given freq: INVLD-L-DEC-SAT"
|
|
),
|
|
),
|
|
],
|
|
)
|
|
def test_parsers_quarterly_with_freq_error(date_str, kwargs, msg):
|
|
with pytest.raises(parsing.DateParseError, match=msg):
|
|
parsing.parse_time_string(date_str, **kwargs)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"date_str,freq,expected",
|
|
[
|
|
("2013Q2", None, datetime(2013, 4, 1)),
|
|
("2013Q2", "A-APR", datetime(2012, 8, 1)),
|
|
("2013-Q2", "A-DEC", datetime(2013, 4, 1)),
|
|
],
|
|
)
|
|
def test_parsers_quarterly_with_freq(date_str, freq, expected):
|
|
result, _ = parsing.parse_time_string(date_str, freq=freq)
|
|
assert result == expected
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"date_str", ["2Q 2005", "2Q-200A", "2Q-200", "22Q2005", "2Q200.", "6Q-20"]
|
|
)
|
|
def test_parsers_quarter_invalid(date_str):
|
|
if date_str == "6Q-20":
|
|
msg = (
|
|
"Incorrect quarterly string is given, quarter "
|
|
f"must be between 1 and 4: {date_str}"
|
|
)
|
|
else:
|
|
msg = f"Unknown datetime string format, unable to parse: {date_str}"
|
|
|
|
with pytest.raises(ValueError, match=msg):
|
|
parsing.parse_time_string(date_str)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"date_str,expected",
|
|
[("201101", datetime(2011, 1, 1, 0, 0)), ("200005", datetime(2000, 5, 1, 0, 0))],
|
|
)
|
|
def test_parsers_month_freq(date_str, expected):
|
|
result, _ = parsing.parse_time_string(date_str, freq="M")
|
|
assert result == expected
|
|
|
|
|
|
@td.skip_if_not_us_locale
|
|
@pytest.mark.parametrize(
|
|
"string,fmt",
|
|
[
|
|
("20111230", "%Y%m%d"),
|
|
("2011-12-30", "%Y-%m-%d"),
|
|
("30-12-2011", "%d-%m-%Y"),
|
|
("2011-12-30 00:00:00", "%Y-%m-%d %H:%M:%S"),
|
|
("2011-12-30T00:00:00", "%Y-%m-%dT%H:%M:%S"),
|
|
("2011-12-30 00:00:00.000000", "%Y-%m-%d %H:%M:%S.%f"),
|
|
],
|
|
)
|
|
def test_guess_datetime_format_with_parseable_formats(string, fmt):
|
|
result = parsing._guess_datetime_format(string)
|
|
assert result == fmt
|
|
|
|
|
|
@pytest.mark.parametrize("dayfirst,expected", [(True, "%d/%m/%Y"), (False, "%m/%d/%Y")])
|
|
def test_guess_datetime_format_with_dayfirst(dayfirst, expected):
|
|
ambiguous_string = "01/01/2011"
|
|
result = parsing._guess_datetime_format(ambiguous_string, dayfirst=dayfirst)
|
|
assert result == expected
|
|
|
|
|
|
@td.skip_if_has_locale
|
|
@pytest.mark.parametrize(
|
|
"string,fmt",
|
|
[
|
|
("30/Dec/2011", "%d/%b/%Y"),
|
|
("30/December/2011", "%d/%B/%Y"),
|
|
("30/Dec/2011 00:00:00", "%d/%b/%Y %H:%M:%S"),
|
|
],
|
|
)
|
|
def test_guess_datetime_format_with_locale_specific_formats(string, fmt):
|
|
result = parsing._guess_datetime_format(string)
|
|
assert result == fmt
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"invalid_dt",
|
|
[
|
|
"2013",
|
|
"01/2013",
|
|
"12:00:00",
|
|
"1/1/1/1",
|
|
"this_is_not_a_datetime",
|
|
"51a",
|
|
9,
|
|
datetime(2011, 1, 1),
|
|
],
|
|
)
|
|
def test_guess_datetime_format_invalid_inputs(invalid_dt):
|
|
# A datetime string must include a year, month and a day for it to be
|
|
# guessable, in addition to being a string that looks like a datetime.
|
|
assert parsing._guess_datetime_format(invalid_dt) is None
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"string,fmt",
|
|
[
|
|
("2011-1-1", "%Y-%m-%d"),
|
|
("1/1/2011", "%m/%d/%Y"),
|
|
("30-1-2011", "%d-%m-%Y"),
|
|
("2011-1-1 0:0:0", "%Y-%m-%d %H:%M:%S"),
|
|
("2011-1-3T00:00:0", "%Y-%m-%dT%H:%M:%S"),
|
|
("2011-1-1 00:00:00", "%Y-%m-%d %H:%M:%S"),
|
|
],
|
|
)
|
|
def test_guess_datetime_format_no_padding(string, fmt):
|
|
# see gh-11142
|
|
result = parsing._guess_datetime_format(string)
|
|
assert result == fmt
|
|
|
|
|
|
def test_try_parse_dates():
|
|
arr = np.array(["5/1/2000", "6/1/2000", "7/1/2000"], dtype=object)
|
|
result = parsing.try_parse_dates(arr, dayfirst=True)
|
|
|
|
expected = np.array([parse(d, dayfirst=True) for d in arr])
|
|
tm.assert_numpy_array_equal(result, expected)
|
|
|
|
|
|
def test_parse_time_string_check_instance_type_raise_exception():
|
|
# issue 20684
|
|
msg = "Argument 'arg' has incorrect type (expected str, got tuple)"
|
|
with pytest.raises(TypeError, match=re.escape(msg)):
|
|
parse_time_string((1, 2, 3))
|
|
|
|
result = parse_time_string("2019")
|
|
expected = (datetime(2019, 1, 1), "year")
|
|
assert result == expected
|