swadhinbiswas Add PR stack-order suggestion API and document dependency coverage · 2/19/2026
733b31d
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import { beforeEach, describe, expect, it, vi } from "vitest";
const {
canReadRepoMock,
suggestStackOrderMock,
fakeSchema,
} = vi.hoisted(() => ({
canReadRepoMock: vi.fn(async () => true),
suggestStackOrderMock: vi.fn(async () => ({ order: ["pr-1", "pr-2"], cycles: [] })),
fakeSchema: {
users: { username: {} },
repositories: { ownerId: {}, name: {}, id: {} },
pullRequests: { id: {}, repositoryId: {} },
} as any,
}));
let mockDb: any;
vi.mock("@/db", () => ({
getDatabase: () => mockDb,
schema: fakeSchema,
}));
vi.mock("@/lib/permissions", () => ({
canReadRepo: canReadRepoMock,
}));
vi.mock("@/lib/pr-dependencies", () => ({
suggestStackOrder: suggestStackOrderMock,
}));
import { POST as stackOrderPost } from "@/pages/api/repos/[owner]/[repo]/pulls/stack-order";
function makeDb() {
return {
query: {
users: {
findFirst: vi.fn(async () => ({ id: "owner-1" })),
},
repositories: {
findFirst: vi.fn(async () => ({ id: "repo-1", ownerId: "owner-1", name: "demo" })),
},
pullRequests: {
findMany: vi.fn(async () => [
{ id: "pr-1", repositoryId: "repo-1" },
{ id: "pr-2", repositoryId: "repo-1" },
]),
},
},
};
}
async function readJson(response: Response): Promise<any> {
return response.json();
}
describe("stack order suggestion route", () => {
beforeEach(() => {
mockDb = makeDb();
canReadRepoMock.mockResolvedValue(true);
suggestStackOrderMock.mockResolvedValue({ order: ["pr-1", "pr-2"], cycles: [] });
});
it("returns suggested ordering for valid PR IDs", async () => {
const response = await stackOrderPost({
params: { owner: "owner-1", repo: "demo" },
locals: { user: { id: "user-1" } },
request: new Request("http://localhost/api/repos/owner-1/demo/pulls/stack-order", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({ prIds: ["pr-1", "pr-2"] }),
}),
} as any);
const body = await readJson(response);
expect(response.status).toBe(200);
expect(body?.data?.order).toEqual(["pr-1", "pr-2"]);
expect(suggestStackOrderMock).toHaveBeenCalledWith(["pr-1", "pr-2"]);
});
it("rejects PR IDs outside the target repository", async () => {
mockDb.query.pullRequests.findMany.mockResolvedValueOnce([
{ id: "pr-1", repositoryId: "repo-1" },
{ id: "pr-2", repositoryId: "repo-2" },
]);
const response = await stackOrderPost({
params: { owner: "owner-1", repo: "demo" },
locals: { user: { id: "user-1" } },
request: new Request("http://localhost/api/repos/owner-1/demo/pulls/stack-order", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({ prIds: ["pr-1", "pr-2"] }),
}),
} as any);
const body = await readJson(response);
expect(response.status).toBe(400);
expect(body?.error?.code).toBe("BAD_REQUEST");
});
});