moadim 1.7.2

Loop engine for AI agents — routines over REST, MCP, and a built-in web UI
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

#![allow(
    clippy::missing_docs_in_private_items,
    reason = "test helpers and fixtures do not need doc comments"
)]

use super::*;

fn touch_dir(parent: &std::path::Path, name: &str) {
    std::fs::create_dir_all(parent.join(name)).unwrap();
}

fn write_bytes(parent: &std::path::Path, name: &str, len: usize) {
    std::fs::write(parent.join(name).join("agent.log"), vec![b'x'; len]).unwrap();
}

/// A `finished_at` that reports each run's trigger timestamp as its finish time, isolating cap
/// eviction ordering from `agent.log` mtime.
fn finish_at_trigger(_dir: &std::path::Path, trigger_ts: u64) -> u64 {
    trigger_ts
}

#[test]
fn enforce_disk_cap_is_noop_when_unset() {
    let base =
        std::env::temp_dir().join(format!("moadim-enforce-cap-unset-{}", uuid::Uuid::new_v4()));
    std::fs::create_dir_all(&base).unwrap();
    touch_dir(&base, "wb-100");

    let stats = enforce(&base, 0, &|_| false, &finish_at_trigger);
    assert_eq!(stats, ReapStats::default());
    assert!(base.join("wb-100").exists());

    std::fs::remove_dir_all(&base).unwrap();
}

#[test]
fn enforce_disk_cap_is_noop_for_a_missing_dir() {
    let missing = std::env::temp_dir().join(format!(
        "moadim-enforce-cap-missing-{}",
        uuid::Uuid::new_v4()
    ));
    let _ = std::fs::remove_dir_all(&missing);
    let stats = enforce(&missing, 100, &|_| false, &finish_at_trigger);
    assert_eq!(stats, ReapStats::default());
}

#[test]
fn enforce_disk_cap_evicts_oldest_finished_workbenches_over_cap() {
    let base =
        std::env::temp_dir().join(format!("moadim-enforce-cap-evict-{}", uuid::Uuid::new_v4()));
    std::fs::create_dir_all(&base).unwrap();
    touch_dir(&base, "oldest-1");
    write_bytes(&base, "oldest-1", 40);
    touch_dir(&base, "newest-2");
    write_bytes(&base, "newest-2", 40);

    // Total 80 bytes over a 50-byte cap: the oldest-finished must be evicted, dropping to 40 <= 50.
    let stats = enforce(&base, 50, &|_| false, &finish_at_trigger);

    assert_eq!(stats.removed, 1);
    assert_eq!(stats.freed_bytes, 40);
    assert!(!base.join("oldest-1").exists());
    assert!(base.join("newest-2").exists());

    std::fs::remove_dir_all(&base).unwrap();
}

#[test]
fn enforce_disk_cap_never_evicts_a_live_session() {
    let base =
        std::env::temp_dir().join(format!("moadim-enforce-cap-live-{}", uuid::Uuid::new_v4()));
    std::fs::create_dir_all(&base).unwrap();
    touch_dir(&base, "alive-1");
    write_bytes(&base, "alive-1", 100);

    // Even though the tree is far over cap, the only candidate is a live session, so nothing moves.
    let alive = |session: &str| session == "moadim-alive-1";
    let stats = enforce(&base, 10, &alive, &finish_at_trigger);

    assert_eq!(stats, ReapStats::default());
    assert!(base.join("alive-1").exists());

    std::fs::remove_dir_all(&base).unwrap();
}

#[cfg(unix)]
#[test]
fn enforce_disk_cap_counts_zero_when_remove_fails() {
    use std::os::unix::fs::PermissionsExt as _;

    // An over-cap, finished workbench whose removal fails (parent dir is read-only) is not
    // counted, exercising the `Err` arm of the eviction remove match.
    let base = std::env::temp_dir().join(format!(
        "moadim-enforce-cap-removefail-{}",
        uuid::Uuid::new_v4()
    ));
    let _ = std::fs::remove_dir_all(&base);
    std::fs::create_dir_all(&base).unwrap();
    touch_dir(&base, "oldest-1");
    write_bytes(&base, "oldest-1", 100);

    // Strip write permission from the parent so removing the child directory fails.
    let mut perms = std::fs::metadata(&base).unwrap().permissions();
    perms.set_mode(0o555);
    std::fs::set_permissions(&base, perms).unwrap();

    let stats = enforce(&base, 10, &|_| false, &finish_at_trigger);
    // A read-only parent makes `remove_dir_all` fail for an unprivileged user, so the directory
    // survives and the Err arm runs (0 removed). Root bypasses the permission check; tolerate
    // that by only asserting consistency.
    if base.join("oldest-1").exists() {
        assert_eq!(stats.removed, 0);
    }

    // Restore permissions so cleanup can proceed.
    let mut perms = std::fs::metadata(&base).unwrap().permissions();
    perms.set_mode(0o755);
    std::fs::set_permissions(&base, perms).unwrap();
    std::fs::remove_dir_all(&base).unwrap();
}

#[test]
fn enforce_disk_cap_skips_a_file_and_a_non_workbench_dir() {
    let base =
        std::env::temp_dir().join(format!("moadim-enforce-cap-skip-{}", uuid::Uuid::new_v4()));
    std::fs::create_dir_all(&base).unwrap();
    std::fs::write(base.join("stray-file"), b"x").unwrap();
    touch_dir(&base, "notawb");

    let stats = enforce(&base, 1, &|_| false, &finish_at_trigger);
    assert_eq!(stats, ReapStats::default());

    std::fs::remove_dir_all(&base).unwrap();
}