graphile_worker 0.13.3

High performance Rust/PostgreSQL job queue (also suitable for getting jobs generated by PostgreSQL triggers/functions out into a different work queue)
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
81
82

use std::time::Duration;

use super::config::{calculate_retry_delay, RetryOptions};
use super::*;

#[test]
fn retry_delay_applies_cap_and_jitter() {
    let options = RetryOptions {
        max_attempts: 3,
        min_delay_ms: 1_000,
        max_delay_ms: 10,
        multiplier: 2.0,
    };

    let delay = calculate_retry_delay(4, &options);
    assert!(delay >= Duration::from_millis(5));
    assert!(delay <= Duration::from_millis(10));
}

#[test]
fn local_queue_config_builders_and_mutators() {
    let refetch_delay = RefetchDelayConfig::default()
        .with_duration(Duration::from_millis(50))
        .with_threshold(2)
        .with_max_abort_threshold(9);

    assert_eq!(refetch_delay.duration, Duration::from_millis(50));
    assert_eq!(refetch_delay.threshold, 2);
    assert_eq!(refetch_delay.max_abort_threshold, Some(9));

    let built_refetch_delay = RefetchDelayConfig::builder()
        .duration(Duration::from_millis(25))
        .threshold(1)
        .max_abort_threshold(4)
        .build();
    assert_eq!(built_refetch_delay.duration, Duration::from_millis(25));
    assert_eq!(built_refetch_delay.threshold, 1);
    assert_eq!(built_refetch_delay.max_abort_threshold, Some(4));

    let config = LocalQueueConfig::default()
        .with_size(7)
        .with_ttl(Duration::from_secs(3))
        .with_refetch_delay(refetch_delay.clone())
        .with_queue_count(3);
    assert_eq!(config.size, 7);
    assert_eq!(config.ttl, Duration::from_secs(3));
    assert!(config.refetch_delay.is_some());
    assert_eq!(config.queue_count, 3);

    let built_config = LocalQueueConfig::builder()
        .size(8)
        .ttl(Duration::from_secs(4))
        .refetch_delay(built_refetch_delay)
        .queue_count(2)
        .build();
    assert_eq!(built_config.size, 8);
    assert_eq!(built_config.ttl, Duration::from_secs(4));
    assert!(built_config.refetch_delay.is_some());
    assert_eq!(built_config.queue_count, 2);
}

#[test]
fn local_queue_config_validation_rejects_invalid_values() {
    assert_eq!(
        LocalQueueConfig::default()
            .with_size(0)
            .validate(Duration::from_secs(1)),
        Err(LocalQueueConfigError::EmptySize)
    );
    assert_eq!(
        LocalQueueConfig::default()
            .with_queue_count(0)
            .validate(Duration::from_secs(1)),
        Err(LocalQueueConfigError::EmptyQueueCount)
    );
    assert!(matches!(
        LocalQueueConfig::default()
            .with_refetch_delay(RefetchDelayConfig::default().with_duration(Duration::from_secs(2)))
            .validate(Duration::from_secs(1)),
        Err(LocalQueueConfigError::RefetchDelayExceedsPollInterval { .. })
    ));
}