yog 0.0.51

yog: the standalone server for litany loops — the world, the balls and the conversations, behind one wire
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
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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202

//! `GitTree::from_repo` end-to-end tests: real workspaces (ARCH §2.2),
//! real commits, assertions on the resulting view-model's *skeleton* — the
//! trunk, the agents, their marks and descent. The step-content projection
//! (streaming text, tool calls) is [`super::steps`]'s concern, and the text a
//! row wears — its §3.3 name and its goal preview — is [`super::naming`]'s.

use super::fixture::Fixture;
use crate::git_tree::{GitTree, GitTreeError};
use tempfile::tempdir;

#[test]
fn from_repo_errors_when_repo_missing() {
    let dir = tempdir().unwrap();
    let Err(err) = GitTree::from_repo(&dir.path().join("nope")) else {
        panic!("expected error");
    };
    assert!(
        matches!(err, GitTreeError::Git { .. } | GitTreeError::Spawn(_)),
        "got {err:?}"
    );
}

#[test]
fn from_repo_errors_when_repo_git_absent() {
    // A directory that exists but has no `repo.git` (i.e. not a
    // workspace) should fail with a git error rather than silently
    // returning an empty tree.
    let dir = tempdir().unwrap();
    let err = GitTree::from_repo(dir.path()).unwrap_err();
    assert!(
        matches!(err, GitTreeError::Git { .. } | GitTreeError::Spawn(_)),
        "got {err:?}"
    );
}

#[test]
fn from_repo_surfaces_the_config_lineage_as_the_trunk() {
    let fx = Fixture::new();
    fx.commit_other("workflow.yaml", "events: {}\n");
    let tree = GitTree::from_repo(&fx.path).unwrap();
    // Init config commit + the amendment, oldest to newest (§2.2).
    assert_eq!(tree.commits.len(), 2);
    assert_eq!(tree.commits[0].subject, "config: init [config/default]");
    assert_eq!(tree.commits[1].subject, "add workflow.yaml");
    assert_eq!(tree.commits[0].short_oid.len(), 8);
    assert!(tree.agents.is_empty());
}

#[test]
fn from_repo_agent_surfaces_with_steps_and_preview() {
    let fx = Fixture::new();
    fx.build_agent("20260422T120500Z-b002", "ping v03");
    let tree = GitTree::from_repo(&fx.path).unwrap();
    assert_eq!(tree.commits.len(), 1, "config lineage untouched");
    assert_eq!(tree.agents.len(), 1);
    let agent = &tree.agents[0];
    // The ref is `agents/<id>` (§2.3); the id is the identity.
    assert_eq!(agent.branch_name, "agents/20260422T120500Z-b002");
    assert_eq!(agent.agent_id, "20260422T120500Z-b002");
    assert_eq!(agent.preview.as_deref(), Some("ping v03"));
    // Dispatch commit + compaction merge past the config lineage, each
    // carrying its subject (§7.1 "commits surfaced").
    assert_eq!(agent.steps.len(), 2);
    assert!(agent.steps[0].subject.contains("dispatch"));
    // The compaction is a `--no-ff` merge; `--first-parent` surfaces the
    // merge commit (its summary rides the second parent, §2.6).
    assert!(
        agent.steps[1].subject.contains("Merge"),
        "{:?}",
        agent.steps[1].subject
    );
    assert_eq!(agent.tip_short_oid.len(), 8);
    // No inbox and no mark refs by default.
    assert_eq!(agent.pending.len(), 0);
    assert!(agent.conflicted_oid.is_none());
    assert!(agent.budget_oid.is_none());
    assert!(agent.abandoned_oid.is_none());
    assert!(agent.notify_oid.is_none());
}

#[test]
fn from_repo_multiple_agents_appear() {
    let fx = Fixture::new();
    fx.build_agent("20260422T120000Z-old0", "first prompt");
    fx.build_agent("20260422T120500Z-new0", "second prompt");
    let tree = GitTree::from_repo(&fx.path).unwrap();
    assert_eq!(tree.commits.len(), 1);
    assert_eq!(tree.agents.len(), 2);
    let ids: Vec<&str> = tree.agents.iter().map(|a| a.agent_id.as_str()).collect();
    assert!(ids.contains(&"20260422T120000Z-old0"), "{ids:?}");
    assert!(ids.contains(&"20260422T120500Z-new0"), "{ids:?}");
}

#[test]
fn from_repo_surfaces_pending_message_count() {
    // §7.1 pending-message indicator: files in the agent's inbox count;
    // the atomic-rename temp dotfile is excluded.
    let fx = Fixture::new();
    fx.build_agent("20260422T121000Z-msg0", "with mail");
    fx.deposit_message("20260422T121000Z-msg0", "user-001.md", "hi");
    fx.deposit_message("20260422T121000Z-msg0", "p1-002.md", "steer");
    fx.deposit_message("20260422T121000Z-msg0", ".user-003.md.tmp", "partial");
    let tree = GitTree::from_repo(&fx.path).unwrap();
    assert_eq!(tree.agents[0].pending.len(), 2);
    // The listing is the §5.1 #11 parse itself, oldest-first by filename —
    // the same bytes every seat (badge, Inbox tab, inbox-composer) reads.
    assert_eq!(tree.agents[0].pending[0].name, "p1-002.md");
    assert_eq!(tree.agents[0].pending[1].name, "user-001.md");
    assert_eq!(tree.agents[0].pending[1].deposit.body, "hi");
}

#[test]
fn from_repo_surfaces_all_four_mark_oids() {
    // §2.6 / §6 / ARCH §8 ref-derived marks, keyed by raw agent id; each
    // surfaces its ref oid (the §6 watermark evidence), not a bare bool.
    let fx = Fixture::new();
    fx.build_agent("20260422T121500Z-mrk0", "marked");
    fx.mark_ref("refs/litany/conflicted/20260422T121500Z-mrk0");
    fx.mark_ref("refs/litany/budget-exhausted/20260422T121500Z-mrk0");
    fx.mark_ref("refs/litany/abandoned/20260422T121500Z-mrk0");
    fx.mark_ref("refs/litany/notify/20260422T121500Z-mrk0");
    let tree = GitTree::from_repo(&fx.path).unwrap();
    let agent = &tree.agents[0];
    // mark_ref points every mark at config/default, so all four oids are
    // the same non-empty 40-char sha — presence is what the marks encode.
    for oid in [
        &agent.conflicted_oid,
        &agent.budget_oid,
        &agent.abandoned_oid,
        &agent.notify_oid,
    ] {
        assert_eq!(oid.as_deref().map(str::len), Some(40));
    }
}

/// The fifth mark carries a **value** (ARCH §3.3, DESIGN §8.6): the parked
/// invocation, read off the blob the ref names — and a blob that is not the
/// shape litany writes is no park at all, never a forged one.
#[test]
fn from_repo_reads_the_parked_invocation_off_the_hold_mark() {
    let fx = Fixture::new();
    fx.build_agent("20260422T123000Z-hld0", "parked");
    fx.build_agent("20260422T123000Z-hld1", "mangled");
    fx.hold_ref(
        "20260422T123000Z-hld0",
        r#"{"tool_use_id":"toolu_5","tool":"bash","reason":"open-world (no rule classifies `curl`)"}"#,
    );
    fx.hold_ref("20260422T123000Z-hld1", "not the shape litany writes");
    let tree = GitTree::from_repo(&fx.path).unwrap();
    let parked = tree
        .agents
        .iter()
        .find(|a| a.agent_id == "20260422T123000Z-hld0")
        .unwrap();
    let held = parked.held.as_ref().expect("the park");
    assert_eq!(held.tool_use_id, "toolu_5");
    assert_eq!(held.tool, "bash");
    assert!(held.reason.contains("open-world"));
    assert!(parked.marks().contains(&crate::git_tree::AgentMark::Held));
    let mangled = tree
        .agents
        .iter()
        .find(|a| a.agent_id == "20260422T123000Z-hld1")
        .unwrap();
    assert_eq!(mangled.held, None);
    assert!(!mangled.marks().contains(&crate::git_tree::AgentMark::Held));
}

#[test]
fn from_repo_marks_only_the_named_agent() {
    // A mark on one agent does not bleed onto a sibling.
    let fx = Fixture::new();
    fx.build_agent("20260422T122000Z-aaa0", "marked");
    fx.build_agent("20260422T122000Z-bbb0", "clean");
    fx.mark_ref("refs/litany/budget-exhausted/20260422T122000Z-aaa0");
    let tree = GitTree::from_repo(&fx.path).unwrap();
    let marked = tree
        .agents
        .iter()
        .find(|a| a.agent_id == "20260422T122000Z-aaa0")
        .unwrap();
    let clean = tree
        .agents
        .iter()
        .find(|a| a.agent_id == "20260422T122000Z-bbb0")
        .unwrap();
    assert!(marked.budget_oid.is_some());
    assert!(clean.budget_oid.is_none());
}

#[test]
fn from_repo_enumerates_a_child_agent_for_the_descent_tree() {
    // A child fork appears as its own agent row; the descent tree is
    // derived from the ids at render time (§2.3, §7.1).
    let fx = Fixture::new();
    fx.build_agent("20260422T123000Z-par0", "parent");
    fx.build_child("20260422T123000Z-par0", "20260422T123000Z-par0-c1");
    let tree = GitTree::from_repo(&fx.path).unwrap();
    let ids: Vec<&str> = tree.agents.iter().map(|a| a.agent_id.as_str()).collect();
    assert!(ids.contains(&"20260422T123000Z-par0"), "{ids:?}");
    assert!(ids.contains(&"20260422T123000Z-par0-c1"), "{ids:?}");
}