From aea000f654c05549d3071b1c79355c2eb420a5be Mon Sep 17 00:00:00 2001
From: Dave <david.els1@outlook.com>
Date: Wed, 16 Sep 2026 16:18:40 +0200
Subject: [PATCH] test(ai): merge exclusion, graceful degradation, summary
 persistence

---
 tests/integration/summarise.test.ts | 97 +++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 tests/integration/summarise.test.ts

diff --git a/tests/integration/summarise.test.ts b/tests/integration/summarise.test.ts
new file mode 100644
index 0000000..694b131
--- /dev/null
+++ b/tests/integration/summarise.test.ts
@@ -0,0 +1,97 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import PocketBase from "pocketbase";
+
+import { DEMO, adminPb, requireServices } from "./helpers";
+
+let admin: PocketBase;
+let projectId: string;
+const created: string[] = [];
+
+beforeAll(async () => {
+  await requireServices();
+  admin = await adminPb();
+  projectId = (
+    await admin.collection("projects").getFirstListItem(`slug = "${DEMO.projectSlug}"`)
+  ).id;
+});
+
+afterAll(async () => {
+  for (const id of created) {
+    await admin.collection("commits").delete(id).catch(() => {});
+  }
+});
+
+describe("merge commits are never summarised", () => {
+  it("excludes them from the pending set", async () => {
+    const { summaryStatus } = await import("@/lib/ai/summarise");
+    const status = await summaryStatus(projectId);
+
+    const merges = (
+      await admin
+        .collection("commits")
+        .getList(1, 1, { filter: `project = "${projectId}" && is_merge = true`, fields: "id" })
+    ).totalItems;
+
+    const all = (
+      await admin
+        .collection("commits")
+        .getList(1, 1, { filter: `project = "${projectId}"`, fields: "id" })
+    ).totalItems;
+
+    // status.total counts non-merge commits only.
+    expect(status.total).toBe(all - merges);
+    expect(merges).toBeGreaterThan(0);
+  });
+});
+
+describe("summarisation degrades rather than failing", () => {
+  it("returns a skipped result when no provider is configured", async () => {
+    const settings = await admin
+      .collection("settings")
+      .getFirstListItem("id != ''")
+      .catch(() => null);
+    const previousKey = settings?.ai_api_key ?? "";
+
+    if (settings) {
+      await admin.collection("settings").update(settings.id, { ai_api_key: "" });
+    }
+
+    const { summariseProject } = await import("@/lib/ai/summarise");
+    const result = await summariseProject(projectId);
+
+    // Must not throw. The dashboard and board depend on this.
+    expect(result.skipped).toBe(true);
+    expect(result.summarised).toBe(0);
+
+    if (settings && previousKey) {
+      await admin.collection("settings").update(settings.id, { ai_api_key: previousKey });
+    }
+  });
+});
+
+describe("a stored summary survives re-ingestion", () => {
+  it("is not cleared when the same commit arrives again", async () => {
+    const commit = await admin.collection("commits").create({
+      project: projectId,
+      sha: `summary-probe-${Date.now()}`,
+      short_sha: "sumprb",
+      message: "feat(probe): a thing",
+      subject: "a thing",
+      type: "feat",
+      scope: "probe",
+      authored_at: new Date().toISOString(),
+      is_merge: false,
+      link_source: "none",
+      summary: "Did a thing for the client.",
+      summary_version: 1,
+      summary_attempts: 0,
+    });
+    created.push(commit.id);
+
+    const { relinkProject } = await import("@/lib/linking/engine");
+    await relinkProject(projectId);
+
+    const after = await admin.collection("commits").getOne(commit.id);
+    expect(after.summary).toBe("Did a thing for the client.");
+  });
+});