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`ai-incident.test.ts`

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1e162a8Claude	1	/**
	2	* Block D4 — AI Incident Responder tests.
	3	*
	4	* These tests exercise the pure helper (no I/O) and confirm that
	5	* `onDeployFailure` degrades gracefully when the repository does not exist
	6	* (or the DB is unavailable) without ever throwing.
	7	*/
	8
	9	import { describe, it, expect } from "bun:test";
	10	import {
	11	onDeployFailure,
	12	summariseCommitsForIncident,
	13	} from "../lib/ai-incident";
	14
	15	describe("lib/ai-incident — module shape", () => {
	16	it("imports cleanly and exports the expected functions", () => {
	17	expect(typeof summariseCommitsForIncident).toBe("function");
	18	expect(typeof onDeployFailure).toBe("function");
	19	});
	20	});
	21
	22	describe("lib/ai-incident — summariseCommitsForIncident", () => {
	23	it("formats each commit as `- <sha7> <subject> — <author>`", () => {
	24	const out = summariseCommitsForIncident([
	25	{ sha: "abcdef1234567890", message: "fix: handle null", author: "alice" },
	26	{ sha: "fedcba0987654321", message: "feat: new thing", author: "bob" },
	27	]);
	28	expect(out).toBe(
	29	"- abcdef1 fix: handle null — alice\n" +
	30	"- fedcba0 feat: new thing — bob"
	31	);
	32	});
	33
	34	it("keeps only the first line of multi-line commit messages", () => {
	35	const out = summariseCommitsForIncident([
	36	{
	37	sha: "1111111aaaaaaa",
	38	message: "first line\n\nbody goes here",
	39	author: "carol",
	40	},
	41	]);
	42	expect(out).toBe("- 1111111 first line — carol");
	43	});
	44
	45	it("handles an empty list as an empty string", () => {
	46	expect(summariseCommitsForIncident([])).toBe("");
	47	});
	48
	49	it("tolerates missing fields without throwing", () => {
	50	const out = summariseCommitsForIncident([
	51	{ sha: "", message: "", author: "" },
	52	]);
	53	// Expect a renderable line even when fields are blank.
	54	expect(out).toContain(" — ");
	55	});
	56	});
	57
	58	describe("lib/ai-incident — onDeployFailure", () => {
	59	it("returns { issueNumber: null, reason: <non-empty> } for an unknown repositoryId without throwing", async () => {
	60	const result = await onDeployFailure({
	61	repositoryId: "00000000-0000-0000-0000-000000000000",
	62	deploymentId: "00000000-0000-0000-0000-000000000000",
	63	ref: "refs/heads/main",
	64	commitSha: "0".repeat(40),
9ecf5a4Claude	65	target: "vapron",
1e162a8Claude	66	errorMessage: "HTTP 500",
	67	});
	68	expect(result).toBeDefined();
	69	expect(result.issueNumber).toBeNull();
	70	expect(typeof result.reason).toBe("string");
	71	expect(result.reason.length).toBeGreaterThan(0);
	72	});
	73
	74	it("never throws even when all optional fields are missing", async () => {
	75	await expect(
	76	onDeployFailure({
	77	repositoryId: "00000000-0000-0000-0000-000000000000",
	78	deploymentId: "00000000-0000-0000-0000-000000000000",
	79	})
	80	).resolves.toBeDefined();
	81	});
	82	});