polars 0.53.0

DataFrame library based on Apache Arrow
Documentation 
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

use chrono::NaiveDate;
use polars::prelude::*;
#[allow(unused_imports)]
use polars::time::date_range;

#[test]
fn test_time_units_9413() {
    let start = NaiveDate::from_ymd_opt(2022, 1, 1)
        .unwrap()
        .and_hms_opt(0, 0, 0)
        .unwrap();
    let stop = NaiveDate::from_ymd_opt(2022, 1, 5)
        .unwrap()
        .and_hms_opt(0, 0, 0)
        .unwrap();
    let actual = date_range(
        "date".into(),
        start,
        stop,
        Duration::parse("1d"),
        ClosedWindow::Both,
        TimeUnit::Milliseconds,
        None,
    )
    .map(|date_range| date_range.into_series());
    let result = format!("{actual:?}");
    let expected = r#"Ok(shape: (5,)
Series: 'date' [datetime[ms]]
[
	2022-01-01 00:00:00
	2022-01-02 00:00:00
	2022-01-03 00:00:00
	2022-01-04 00:00:00
	2022-01-05 00:00:00
])"#;
    assert_eq!(result, expected);
    let actual = date_range(
        "date".into(),
        start,
        stop,
        Duration::parse("1d"),
        ClosedWindow::Both,
        TimeUnit::Microseconds,
        None,
    )
    .map(|date_range| date_range.into_series());
    let result = format!("{actual:?}");
    let expected = r#"Ok(shape: (5,)
Series: 'date' [datetime[μs]]
[
	2022-01-01 00:00:00
	2022-01-02 00:00:00
	2022-01-03 00:00:00
	2022-01-04 00:00:00
	2022-01-05 00:00:00
])"#;
    assert_eq!(result, expected);
    let actual = date_range(
        "date".into(),
        start,
        stop,
        Duration::parse("1d"),
        ClosedWindow::Both,
        TimeUnit::Nanoseconds,
        None,
    )
    .map(|date_range| date_range.into_series());
    let result = format!("{actual:?}");
    let expected = r#"Ok(shape: (5,)
Series: 'date' [datetime[ns]]
[
	2022-01-01 00:00:00
	2022-01-02 00:00:00
	2022-01-03 00:00:00
	2022-01-04 00:00:00
	2022-01-05 00:00:00
])"#;
    assert_eq!(result, expected);
    assert_eq!(result, expected);
}