1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
"""Tests for the iter library."""
from __future__ import annotations
import datetime
import random
from collections.abc import Generator
from typing import Any, Iterable, Iterator
import pytest
from dateutil import rrule
from ical.iter import (
MergedIterable,
MergedIterator,
RecurIterable,
RecurrenceError,
RulesetIterable,
)
EMPTY_LIST: list[bool] = []
EMPTY_ITERATOR_LIST: list[Iterator[bool]] = []
EMPTY_ITERABLE_LIST: list[Iterable[bool]] = []
def test_merged_empty() -> None:
"""Test iterating over an empty input."""
with pytest.raises(StopIteration):
next(iter(MergedIterable(EMPTY_ITERABLE_LIST)))
with pytest.raises(StopIteration):
next(iter(MergedIterator(EMPTY_ITERATOR_LIST)))
with pytest.raises(StopIteration):
next(MergedIterator(EMPTY_ITERATOR_LIST))
with pytest.raises(StopIteration):
next(MergedIterator([iter(EMPTY_LIST), iter(EMPTY_LIST)]))
def test_merge_is_sorted() -> None:
"""Test that the merge result of two sorted inputs is sorted."""
merged_it = MergedIterable([[1, 3, 5], [2, 4, 6]])
assert list(merged_it) == [1, 2, 3, 4, 5, 6]
def test_recur_empty() -> None:
"""Test recur with an empty input."""
def _is_even_year(value: datetime.date) -> bool:
return value.year % 2 == 0
input_dates = [
datetime.date(2022, 1, 1),
datetime.date(2023, 1, 1),
datetime.date(2024, 1, 1),
]
recur_it = RecurIterable(_is_even_year, input_dates)
assert list(recur_it) == [True, False, True]
# an iterator is an iterable
assert list(iter(iter(recur_it))) == [True, False, True]
def test_merge_false_values() -> None:
"""Test the merged iterator can handle values evaluating to False."""
merged_it: Iterable[float | int] = MergedIterable([[0, 1], [-2, 0, 0.5, 2]])
assert list(merged_it) == [-2, 0, 0, 0.5, 1, 2]
def test_merge_none_values() -> None:
"""Test the merged iterator can handle None values."""
merged_it = MergedIterable([[None, None], [None]])
assert list(merged_it) == [None, None, None]
@pytest.mark.parametrize(
"num_iters,num_objects",
[
(10, 10),
(10, 100),
(10, 1000),
(100, 10),
(100, 100),
],
)
def test_benchmark_merged_iter(
num_iters: int, num_objects: int, benchmark: Any
) -> None:
"""Add a benchmark for the merged iterator."""
def gen_items() -> Generator[float, None, None]:
nonlocal num_objects
for _ in range(num_objects):
yield random.random()
def exhaust() -> int:
nonlocal num_iters
merged_it = MergedIterable([gen_items() for _ in range(num_iters)])
return sum(1 for _ in merged_it)
result = benchmark(exhaust)
assert result == num_iters * num_objects
def test_debug_invalid_rules() -> None:
"""Exercise debug information by creating rules not supported by dateutil."""
recur_iter = RulesetIterable(
datetime.datetime(2022, 12, 19, 5, 0, 0),
[
rrule.rrule(
freq=rrule.DAILY,
dtstart=datetime.datetime(2022, 12, 19, 5, 0, 0),
count=3,
)
],
[datetime.date(2022, 12, 22)],
[datetime.date(2022, 12, 23)],
)
with pytest.raises(RecurrenceError) as exc_info:
list(recur_iter)
assert exc_info.value.args[0].startswith(
"Error evaluating recurrence rule (RulesetIterable(dtstart=2022-12-19 05:00:00, "
"rrule=['DTSTART:20221219T050000\\nRRULE:FREQ=DAILY;COUNT=3'], "
"rdate=[datetime.date(2022, 12, 22)], "
"exdate=[datetime.date(2022, 12, 23)]))"
)
def test_debug_invalid_rule_without_recur() -> None:
"""Test debugging information for another variation of unsupported ruleset."""
recur_iter = RulesetIterable(
datetime.datetime(2022, 12, 19, 5, 0, 0),
[],
[datetime.date(2022, 12, 22)],
[datetime.datetime(2022, 12, 23, 5, 0, 0)],
)
with pytest.raises(RecurrenceError) as exc_info:
list(recur_iter)
assert exc_info.value.args[0].startswith(
"Error evaluating recurrence rule (RulesetIterable(dtstart=2022-12-19 05:00:00, "
"rrule=[], "
"rdate=[datetime.date(2022, 12, 22)], "
"exdate=[datetime.datetime(2022, 12, 23, 5, 0)]))"
)
|
