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
use chrono::naive::NaiveDateTime;
use error::DateErrorKind as DEK;
use error::DateError as DE;
use error::Result;
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct DateTimeRange(NaiveDateTime, NaiveDateTime);
impl DateTimeRange {
pub fn new(start: NaiveDateTime, end: NaiveDateTime) -> Result<DateTimeRange> {
if start < end {
Ok(DateTimeRange(start, end))
} else {
Err(DE::from_kind(DEK::EndDateTimeBeforeStartDateTime))
}
}
}
#[cfg(test)]
mod tests {
use chrono::naive::NaiveDateTime;
use chrono::naive::NaiveDate;
use chrono::naive::NaiveTime;
use super::DateTimeRange;
#[test]
fn test_new_returns_error_if_start_after_end_date() {
let start = NaiveDateTime::new(
NaiveDate::from_ymd(2000, 02, 02),
NaiveTime::from_hms(12, 00, 02)
);
let end = NaiveDateTime::new(
NaiveDate::from_ymd(2000, 02, 02),
NaiveTime::from_hms(12, 00, 01)
);
let res = DateTimeRange::new(start, end);
assert!(res.is_err());
}
#[test]
fn test_new_returns_ok_if_start_is_before_end() {
let start = NaiveDateTime::new(
NaiveDate::from_ymd(2000, 02, 02),
NaiveTime::from_hms(12, 00, 01)
);
let end = NaiveDateTime::new(
NaiveDate::from_ymd(2000, 02, 02),
NaiveTime::from_hms(12, 00, 02)
);
let res = DateTimeRange::new(start, end);
assert!(res.is_ok());
}
}