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1import assert from "node:assert/strict";
2import { test } from "node:test";
3
4import type { Claim, Decision, G1tEvent, WorkSession } from "@g1t/contracts";
5
6import {
7 ENDED_BY_HAND,
8 checkHref,
9 endReasonText,
10 evidenceOf,
11 expiresIn,
12 feedLine,
13 harnessName,
14 intentTitle,
15 awakeAndIdle,
16 liveByItem,
17 sessionTitle,
18 duration,
19 mayEndSession,
20 mergeSessions,
21 numberedParts,
22 parseBlockedBy,
23 pullHrefs,
24 pendingLines,
25 resolutionOf,
26 sessionTree,
27 span,
28 titleHint,
29 titleIsProvisional,
30 standingFailure,
31 touchedByKind,
32 treeSize,
33 viaLabel,
34} from "./coordination.ts";
35
36const ana = { id: "usr_ana", username: "ana" };
37const bo = { id: "usr_bo", username: "bo" };
38
39function claim(item: number, over: Partial<Claim> = {}): Claim {
40 return {
41 id: `clm_${item}_${over.actor?.username ?? "ana"}`,
42 repoId: "rep_1",
43 workspace: "acme",
44 item,
45 sessionId: null,
46 actor: ana,
47 harness: "claude_code",
48 note: null,
49 state: "active",
50 createdAt: "2026-10-12T10:00:00Z",
51 expiresAt: "2026-10-12T10:30:00Z",
52 endedAt: null,
53 endReason: null,
54 handoffTo: null,
55 ...over,
56 };
57}
58
59function session(id: string, over: Partial<WorkSession> = {}): WorkSession {
60 return {
61 id,
62 repoId: "rep_1",
63 item: null,
64 pull: null,
65 branch: null,
66 actor: bo,
67 harness: "codex",
68 harnessSessionId: null,
69 title: null,
70 state: "active",
71 headCommit: null,
72 startedAt: "2026-10-12T10:00:00Z",
73 lastSeenAt: "2026-10-12T10:05:00Z",
74 endedAt: null,
75 endReason: null,
76 ...over,
77 };
78}
79
80function decision(kind: Decision["kind"], at: string, over: Partial<Decision> = {}): Decision {
81 return {
82 id: `dec_${kind}_${at}`,
83 item: 2,
84 pull: 5,
85 sessionId: null,
86 actor: null,
87 kind,
88 confidence: "tested",
89 summary: kind,
90 evidence: {},
91 createdAt: at,
92 ...over,
93 };
94}
95
96const event = (type: string, data: unknown): G1tEvent =>
97 ({ id: `evt_${type}`, type, source: "work", time: "2026-10-12T10:00:00Z", repoId: "rep_1", actor: "usr_ana", data }) as G1tEvent;
98
99test("harnesses are named as people know them", () => {
100 assert.equal(harnessName("claude_code"), "Claude Code");
101 assert.equal(harnessName("codex"), "Codex");
102 assert.equal(harnessName("claude_managed_agents"), "Claude Managed Agents");
103 assert.equal(harnessName(null), null);
104});
105
106test("a claim says when it lapses; one that ended says nothing", () => {
107 const now = Date.parse("2026-10-12T10:07:00Z");
108 assert.equal(expiresIn(claim(1), now), "expires in 23m");
109 assert.equal(expiresIn(claim(1, { expiresAt: "2026-10-12T12:00:00Z" }), now), "expires in 1h 53m");
110 assert.equal(expiresIn(claim(1, { expiresAt: "2026-10-12T10:00:00Z" }), now), "expiring now");
111 assert.equal(expiresIn(claim(1, { state: "released" }), now), null);
112 assert.equal(span(30_000), "less than a minute");
113 assert.equal(span(2 * 3_600_000), "2h");
114});
115
116test("Live now lists sessions heard from lately and folds away the idle, the latest first", () => {
117 const { awake, idle } = awakeAndIdle([
118 session("ses_a", { state: "active" }),
119 session("ses_b", { state: "idle", title: "Tidy the README", lastSeenAt: "2026-10-12T10:00:00Z" }),
120 session("ses_c", { state: "idle", lastSeenAt: "2026-10-12T10:10:00Z" }),
121 ]);
122 assert.deepEqual(awake.map((one) => one.id), ["ses_a"]);
123 assert.deepEqual(idle.map((one) => one.id), ["ses_c", "ses_b"]);
124 // A tab opened and never typed in is in neither; once it says what it is for, it shows.
125 const opened = session("ses_d", { state: "active", title: null, startedAt: "2026-10-12T10:00:00Z", lastSeenAt: "2026-10-12T10:00:00Z" });
126 assert.deepEqual(awakeAndIdle([opened]), { awake: [], idle: [] });
127 assert.equal(awakeAndIdle([{ ...opened, lastSeenAt: "2026-10-12T10:00:05Z" }]).awake.length, 1);
128 assert.equal(awakeAndIdle([{ ...opened, title: "Fix the build" }]).awake.length, 1);
129});
130
131test("live work is grouped by work item, most recent first, with sessions on no work item apart", () => {
132 const { items, loose } = liveByItem(
133 [claim(1), claim(2, { createdAt: "2026-10-12T10:20:00Z" }), claim(2, { actor: bo })],
134 [session("ses_a", { item: 1, lastSeenAt: "2026-10-12T10:30:00Z" }), session("ses_b")],
135 );
136 assert.deepEqual(
137 items.map((group) => [group.item, group.claims.length, group.sessions.length]),
138 [
139 [1, 1, 1],
140 [2, 2, 0],
141 ],
142 );
143 assert.deepEqual(loose.map((one) => one.id), ["ses_b"]);
144});
145
146test("sessions on no work item are grouped by pull request, then by a branch of their own, then the rest together", () => {
147 const seen = (minute: number) => `2026-10-12T10:${String(minute).padStart(2, "0")}:00Z`;
148 const { items, groups, loose } = liveByItem(
149 [],
150 [
151 session("ses_main", { branch: "main", lastSeenAt: seen(50) }),
152 session("ses_fix1", { branch: "fix-previews", lastSeenAt: seen(10) }),
153 session("ses_pr", { pull: 12, branch: "tidy-readme", lastSeenAt: seen(20) }),
154 session("ses_fix2", { branch: "fix-previews", lastSeenAt: seen(40) }),
155 session("ses_none", { lastSeenAt: seen(30) }),
156 session("ses_issue", { item: 3, branch: "3-x", lastSeenAt: seen(5) }),
157 ],
158 "main",
159 );
160 assert.deepEqual(items.map((group) => group.item), [3]);
161 assert.deepEqual(
162 groups.map((group) => [group.kind === "pull" ? `#${group.pull}` : group.kind === "branch" ? group.branch : "none", group.sessions.map((one) => one.id)]),
163 [
164 // The most recently heard from first; the rest, on no branch of their own (the default branch is none), last.
165 ["fix-previews", ["ses_fix2", "ses_fix1"]],
166 ["#12", ["ses_pr"]],
167 ["none", ["ses_main", "ses_none"]],
168 ],
169 );
170 assert.deepEqual(loose.map((one) => one.id), ["ses_fix2", "ses_fix1", "ses_pr", "ses_main", "ses_none"]);
171 // Without the default branch known, its sessions are a branch's.
172 assert.equal(liveByItem([], [session("ses_main", { branch: "main" })]).groups[0].kind, "branch");
173});
174
175test("a session is never title-less: its title, its first prompt's intent, its branch, or untitled", () => {
176 assert.equal(sessionTitle({ title: "Rewrite the auth flow", branch: "auth", firstPrompt: "fix it" }), "Rewrite the auth flow");
177 // A title that is only a pasted block's tag reads as none: the first prompt's words title it.
178 assert.equal(sessionTitle({ title: '<pasted_content id="5c50">', branch: "main", firstPrompt: '<pasted_content id="5c50">\nlog\n</pasted_content>\nship the runner setup' }), "Ship the runner setup");
179 assert.equal(sessionTitle({ title: '<pasted_content id="5c50">', branch: "main", firstPrompt: null }), "Session on main");
180 assert.equal(sessionTitle({ title: null, branch: "auth", firstPrompt: "fix the login redirect. It loops." }), "Fix the login redirect");
181 assert.equal(sessionTitle({ title: " ", branch: "auth", firstPrompt: "/clear" }), "Session on auth");
182 assert.equal(sessionTitle({ title: null, branch: null }), "Untitled session");
183 assert.equal(sessionTitle({ title: null, branch: null }, "look at the CI"), "Look at the CI", "a first prompt given stands in");
184});
185
186test("a title from the first prompt is provisional until g1t, the agent or a person names the session", () => {
187 assert.equal(titleIsProvisional({ title: "This project used to be in syntaqx/g1t", titleSource: "prompt", parentId: null }), true);
188 assert.equal(titleIsProvisional({ title: null, titleSource: null, parentId: null }), true);
189 for (const titleSource of ["agent", "person", "item", "pull", "summary"] as const) {
190 assert.equal(titleIsProvisional({ title: "Move issues to Work items", titleSource, parentId: null }), false, titleSource);
191 }
192 // From before titles said where they came from: as it is.
193 assert.equal(titleIsProvisional({ title: "Rewrite the auth flow", parentId: null }), false);
194 // A subagent goes by its task.
195 assert.equal(titleIsProvisional({ title: null, titleSource: null, parentId: "ses_1" }), false);
196 assert.match(titleHint({ title: "Mine", titleSource: "person", parentId: null }) ?? "", /keeps this title/);
197 assert.match(titleHint({ title: "x", titleSource: "prompt", parentId: null }) ?? "", /first prompt/);
198 assert.equal(titleHint({ title: "x", titleSource: "agent", parentId: "ses_1" }), undefined);
199});
200
201test("a prompt's intent is its first line or sentence, plain, clipped on a word", () => {
202 assert.equal(intentTitle("Make preview builds faster. They time out on big repositories."), "Make preview builds faster");
203 // What an editor puts ahead of the prompt is not the prompt.
204 assert.equal(intentTitle("<ide_opened_file>The user opened a.ts in the IDE.</ide_opened_file>\nWhy is the page crashing?"), "Why is the page crashing?");
205 assert.equal(intentTitle("Why does `src/app.ts` fail? It worked yesterday."), "Why does src/app.ts fail?");
206 assert.equal(intentTitle("```js\nconst a = 1;\n```\n## Clean **this** up\nmore"), "Clean this up");
207 assert.equal(intentTitle("\n\n- look at [the docs](https://docs.g1t.sh) for g1t.mjs"), "Look at the docs for g1t.mjs");
208 const long = intentTitle("Tidy up the README and then look at the CI pipeline, which keeps failing on the Windows runners every night")!;
209 assert.ok(long.length <= 80 && long.endsWith("…") && !long.endsWith(" …"), long);
210 for (const prompt of ["/clear", "/g1t:status 4", "<command-name>/clear</command-name>", "```\ncode only\n```", "?", "", null]) {
211 assert.equal(intentTitle(prompt), null, String(prompt));
212 }
213});
214
215test("evidence is read as far as it goes", () => {
216 const failed = decision("integration_failure", "2026-10-12T10:00:00Z", {
217 evidence: { commit: "abc1234", check: { name: "CI / merge_group", conclusion: "failure", url: "https://g1t.sh/acme/web/actions/runs/run_1" }, combination: [4, 5], suspects: [4], bisected: false },
218 });
219 assert.deepEqual(evidenceOf(failed), {
220 commit: "abc1234",
221 check: { name: "CI / merge_group", conclusion: "failure", url: "https://g1t.sh/acme/web/actions/runs/run_1" },
222 combination: [4, 5],
223 suspects: [4],
224 bisected: false,
225 });
226 assert.deepEqual(evidenceOf(decision("note", "2026-10-12T10:00:00Z", { evidence: { combination: "nope" } })).combination, []);
227 assert.equal(checkHref("https://g1t.sh/acme/web/actions/runs/run_1"), "/acme/web/actions/runs/run_1");
228 assert.equal(checkHref("https://ci.example.com/build/9"), "https://ci.example.com/build/9");
229 assert.equal(checkHref(null), null);
230});
231
232test("a failure stands until the pull request passes in the queue or merges, and a fix after it answers it", () => {
233 const failed = decision("integration_failure", "2026-10-12T10:00:00Z");
234 const fix = decision("fix", "2026-10-12T10:10:00Z", { confidence: "claimed" });
235 const passed = decision("integration_passed", "2026-10-12T10:20:00Z");
236 assert.equal(standingFailure([failed], 5), failed);
237 assert.equal(standingFailure([failed, fix], 5), failed);
238 assert.equal(standingFailure([passed, failed], 5), null);
239 assert.equal(standingFailure([failed], 6), null);
240 assert.deepEqual(resolutionOf([failed, fix, passed], failed), { fix, passed });
241 assert.deepEqual(resolutionOf([fix, failed], { ...failed, createdAt: "2026-10-12T10:15:00Z" }), { fix: null, passed: null });
242});
243
244test("coordination events read as lines of the feed", () => {
245 const claimed = feedLine(event("work.claimed", { repoId: "rep_1", number: 2, item: 2, claim: claim(2, { actor: bo, harness: "codex" }), others: [claim(2)] }))!;
246 assert.equal(claimed.who, "bo");
247 assert.equal(claimed.harness, "codex");
248 assert.equal(claimed.text, "claimed #2 (ana is on it too)");
249 assert.equal(claimed.tone, "warn");
250
251 const failed = feedLine(
252 event("integration.failed", {
253 repoId: "rep_1", pullId: "pul_5", number: 5, pull: 5, item: 2, combination: [4, 5],
254 check: { name: "CI / merge_group", conclusion: "failure", url: null }, bisected: false, suspects: [4], otherPulls: [4], commit: null,
255 }),
256 )!;
257 assert.equal(failed.who, null);
258 assert.equal(failed.text, "#5 failed in the merge queue combined as #4, #5: CI / merge_group; fails with #4");
259 assert.equal(failed.tone, "danger");
260
261 const unblocked = feedLine(
262 event("dependency.changed", { repoId: "rep_1", number: 2, item: 2, blockedBy: [1], added: [], removed: [], cleared: [1], remaining: [], mergedPull: 4 }),
263 )!;
264 assert.equal(unblocked.text, "#2 #1 landed (#4 merged); unblocked");
265
266 const overlap = feedLine(event("overlap.detected", { repoId: "rep_1", number: 5, pull: 5, otherPull: 4, files: ["src/auth.rs"] }))!;
267 assert.equal(overlap.text, "#5 and #4 change the same file: src/auth.rs");
268 assert.equal(overlap.session, undefined);
269
270 const sessions = feedLine(
271 event("overlap.detected", { repoId: "rep_1", sessionId: "ses_a", otherSessionId: "ses_b", otherActor: "bo", files: ["a.rs", "b.rs", "c.rs", "d.rs"], item: 2 }),
272 )!;
273 assert.equal(sessions.who, "bo");
274 assert.equal(sessions.text, "touched the same files in a session as another session: a.rs, b.rs, c.rs and 1 more");
275 assert.equal(sessions.session, "ses_a");
276 assert.equal(sessions.number, 2);
277 assert.equal(feedLine(event("session.progressed", { repoId: "rep_1", number: 2, sessionId: "ses_a" })), null);
278
279 const started = feedLine(event("session.started", { repoId: "rep_1", session: session("ses_a", { item: 2 }) }))!;
280 assert.equal(started.text, "started a session on #2");
281 assert.equal(feedLine(event("session.appended", { repoId: "rep_1", number: 5, pullId: "p", count: 3 })), null);
282});
283
284test("a session is ended by hand by whoever runs it, or by anyone who can write", () => {
285 const live = session("ses_a");
286 assert.equal(mayEndSession(live, bo.id, false), true);
287 assert.equal(mayEndSession(live, ana.id, false), false);
288 assert.equal(mayEndSession(live, ana.id, true), true);
289 assert.equal(mayEndSession(session("ses_b", { state: "idle" }), ana.id, true), true);
290 // Ended already, or nobody signed in: nothing to offer.
291 assert.equal(mayEndSession(session("ses_c", { state: "ended" }), bo.id, true), false);
292 assert.equal(mayEndSession(live, null, true), false);
293 // One g1t runs is stopped from its page, which stops the run too.
294 assert.equal(mayEndSession(session("ses_d", { harness: "claude_managed_agents" }), bo.id, true), false);
295 assert.equal(endReasonText("timed_out"), "timed out");
296 assert.equal(endReasonText(`${ENDED_BY_HAND}ana`), "ended by hand by @ana");
297 assert.equal(endReasonText(null), null);
298});
299
300test("a session ended by hand says who ended it in the feed", () => {
301 const own = feedLine(event("session.ended", { repoId: "rep_1", session: session("ses_a", { item: 2, state: "ended", endReason: `${ENDED_BY_HAND}bo` }) }))!;
302 assert.equal(own.who, "bo");
303 assert.equal(own.text, "ended a session on #2 by hand");
304 const theirs = feedLine(event("session.ended", { repoId: "rep_1", session: session("ses_a", { state: "ended", endReason: `${ENDED_BY_HAND}ana` }) }))!;
305 assert.equal(theirs.who, "ana");
306 assert.equal(theirs.harness, null);
307 assert.equal(theirs.text, "ended bo's session by hand");
308 const timedOut = feedLine(event("session.ended", { repoId: "rep_1", session: session("ses_a", { state: "ended", endReason: "timed_out" }) }))!;
309 assert.equal(timedOut.text, "ended a session (timed out)");
310});
311
312test("sessions become trees by their parents; one whose parent is missing is a root", () => {
313 const roots = sessionTree([
314 session("ses_root"),
315 session("ses_a", { parentId: "ses_root" }),
316 session("ses_a1", { parentId: "ses_a" }),
317 session("ses_b", { parentId: "ses_root" }),
318 session("ses_orphan", { parentId: "ses_gone" }),
319 session("ses_other"),
320 ]);
321 const shape = (nodes: ReturnType<typeof sessionTree>): unknown[] => nodes.map((node) => [node.session.id, shape(node.children)]);
322 assert.deepEqual(shape(roots), [
323 ["ses_root", [["ses_a", [["ses_a1", []]]], ["ses_b", []]]],
324 ["ses_orphan", []],
325 ["ses_other", []],
326 ]);
327 assert.equal(treeSize(roots[0]!), 3);
328 // A child listed before its parent still lands under it.
329 assert.deepEqual(shape(sessionTree([session("ses_c", { parentId: "ses_p" }), session("ses_p")])), [["ses_p", [["ses_c", []]]]]);
330 // A cycle does not lose sessions.
331 const cycle = sessionTree([session("ses_x", { parentId: "ses_y" }), session("ses_y", { parentId: "ses_x" })]);
332 assert.equal(cycle.length + cycle.reduce((n, node) => n + treeSize(node), 0), 2);
333 assert.deepEqual(sessionTree([]), []);
334 assert.deepEqual(
335 mergeSessions([session("ses_a"), session("ses_b")], null, [session("ses_b", { title: "later" }), session("ses_c")]).map((one) => [one.id, one.title]),
336 [
337 ["ses_a", null],
338 ["ses_b", null],
339 ["ses_c", null],
340 ],
341 );
342});
343
344test("how a session was tied to its work, what it touched, and how long it ran", () => {
345 assert.equal(viaLabel("attached"), "attached");
346 assert.equal(viaLabel("claim"), "claimed");
347 assert.equal(viaLabel("branch"), "its branch");
348 assert.equal(viaLabel("commit"), "its commit");
349 assert.equal(viaLabel("trailer"), "commit trailer");
350 assert.equal(viaLabel("opened"), "opened it");
351 assert.equal(viaLabel("ref"), "named it");
352 assert.deepEqual(
353 touchedByKind([
354 { kind: "commit", value: "abc" },
355 { kind: "file", value: "b.rs" },
356 { kind: "file", value: "a.rs" },
357 { kind: "file", value: "b.rs" },
358 ]),
359 [
360 { kind: "file", values: ["b.rs", "a.rs"] },
361 { kind: "commit", values: ["abc"] },
362 ],
363 );
364 const now = Date.parse("2026-10-12T10:30:00Z");
365 assert.equal(duration(session("ses_a"), now), "30m");
366 assert.equal(duration(session("ses_a", { state: "ended", endedAt: "2026-10-12T10:00:42Z" }), now), "42s");
367 assert.equal(duration(session("ses_a", { state: "ended", endedAt: null }), now), "5m");
368});
369
370test("numbers in a sentence are found for linking", () => {
371 assert.deepEqual(numberedParts("#5 fails with #4."), [5, " fails with ", 4, "."]);
372 assert.deepEqual(numberedParts("no numbers"), ["no numbers"]);
373});
374
375test("blocked_by is typed as numbers", () => {
376 assert.deepEqual(parseBlockedBy("#12, 14 #12"), [12, 14]);
377 assert.deepEqual(parseBlockedBy(""), []);
378 assert.equal(parseBlockedBy("#12, soon"), null);
379 assert.equal(parseBlockedBy("0"), null);
380});
381
382test("a session's pending updates read as the feed does, leaving out what it does not show", () => {
383 const lines = pendingLines([
384 { id: "upd_1", kind: "work.claimed", at: "2026-10-14T10:00:00Z", data: { repoId: "rep_1", number: 4, item: 4, claim: claim(4, { actor: bo, harness: "codex" }) } },
385 { id: "upd_2", kind: "session.progressed", at: "2026-10-14T10:00:01Z", data: {} },
386 ]);
387 assert.equal(lines.length, 1);
388 assert.equal(lines[0].id, "upd_1");
389 assert.equal(lines[0].who, "bo");
390 assert.match(lines[0].text, /claimed #4/);
391});
392
393test("a work item's pull requests are linked in the repository that has them, and not at all when none or two do", () => {
394 const href = pullHrefs([
395 { path: "acme/web", pulls: [{ number: 41 }] },
396 { path: "acme/api", pulls: [{ number: 44 }, { number: 7 }] },
397 { path: "acme/docs", pulls: [{ number: 7 }] },
398 // A repository deleted before work items kept no path.
399 { path: "", pulls: [{ number: 50 }] },
400 ]);
401 assert.equal(href(41), "/acme/web/pull/41");
402 // A target's pull request is the target's, not the origin's.
403 assert.equal(href(44), "/acme/api/pull/44");
404 assert.equal(href(7), null, "two repositories have a #7: neither is guessed");
405 assert.equal(href(99), null, "unknown");
406 assert.equal(href(50), null, "a deleted repository");
407});