swadhinbiswas Enforce label and review merge gate evaluation · 2/19/2026
c6f115d
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import { beforeEach, describe, expect, it, vi } from "vitest";
let mockDb: any;
const getDatabaseMock = vi.fn(() => mockDb);
const fakeSchema: any = {
pullRequests: { id: {} },
requiredStatusChecks: { repositoryId: {} },
mergeGates: { repositoryId: {} },
pullRequestLabels: { pullRequestId: {} },
};
vi.mock("@/db", () => ({
getDatabase: getDatabaseMock,
schema: fakeSchema,
}));
vi.mock("@/lib/logger", () => ({
logger: {
info: vi.fn(),
error: vi.fn(),
},
}));
const { evaluateGates } = await import("@/lib/ci-gates");
function makeDb(overrides: Partial<Record<string, unknown>> = {}) {
const pr = (overrides.pr as any) || {
id: "pr-1",
repositoryId: "repo-1",
baseBranch: "main",
mergeable: true,
checks: [],
reviews: [],
};
return {
query: {
pullRequests: {
findFirst: vi.fn(async () => pr),
},
requiredStatusChecks: {
findMany: vi.fn(async () => (overrides.requiredChecks as any[]) || []),
},
mergeGates: {
findMany: vi.fn(async () => (overrides.mergeGates as any[]) || []),
},
pullRequestLabels: {
findMany: vi.fn(async () => (overrides.prLabels as any[]) || []),
},
},
};
}
describe("ci gate evaluation", () => {
beforeEach(() => {
vi.clearAllMocks();
});
it("fails label gate when required labels are missing", async () => {
mockDb = makeDb({
mergeGates: [
{
id: "gate-1",
repositoryId: "repo-1",
name: "Label gate",
gateType: "label",
config: JSON.stringify({ required: ["ready"] }),
conditionScript: null,
isEnabled: true,
order: 0,
},
],
prLabels: [{ label: { name: "needs-review" } }],
pr: {
id: "pr-1",
repositoryId: "repo-1",
baseBranch: "main",
mergeable: true,
checks: [],
reviews: [{ reviewerId: "u1", state: "approved", submittedAt: new Date() }],
},
});
const result = await evaluateGates("pr-1");
expect(result.canMerge).toBe(false);
expect(result.results.some((gate) => gate.message.includes("Missing required labels"))).toBe(true);
});
it("fails review gate when latest review is changes requested", async () => {
mockDb = makeDb({
mergeGates: [
{
id: "gate-2",
repositoryId: "repo-1",
name: "Review gate",
gateType: "review",
config: JSON.stringify({ minReviews: 1 }),
conditionScript: null,
isEnabled: true,
order: 0,
},
],
pr: {
id: "pr-1",
repositoryId: "repo-1",
baseBranch: "main",
mergeable: true,
checks: [],
reviews: [
{ reviewerId: "u1", state: "approved", submittedAt: new Date("2026-02-18T10:00:00Z"), createdAt: new Date("2026-02-18T10:00:00Z") },
{ reviewerId: "u1", state: "changes_requested", submittedAt: new Date("2026-02-18T11:00:00Z"), createdAt: new Date("2026-02-18T11:00:00Z") },
],
},
});
const result = await evaluateGates("pr-1");
expect(result.canMerge).toBe(false);
expect(result.results.some((gate) => gate.message.includes("Changes requested"))).toBe(true);
});
it("passes review gate when minimum approvals are met with latest states", async () => {
mockDb = makeDb({
mergeGates: [
{
id: "gate-3",
repositoryId: "repo-1",
name: "Review gate",
gateType: "review",
config: JSON.stringify({ minReviews: 2 }),
conditionScript: null,
isEnabled: true,
order: 0,
},
],
pr: {
id: "pr-1",
repositoryId: "repo-1",
baseBranch: "main",
mergeable: true,
checks: [],
reviews: [
{ reviewerId: "u1", state: "approved", submittedAt: new Date("2026-02-18T10:00:00Z"), createdAt: new Date("2026-02-18T10:00:00Z") },
{ reviewerId: "u2", state: "commented", submittedAt: new Date("2026-02-18T09:00:00Z"), createdAt: new Date("2026-02-18T09:00:00Z") },
{ reviewerId: "u2", state: "approved", submittedAt: new Date("2026-02-18T12:00:00Z"), createdAt: new Date("2026-02-18T12:00:00Z") },
],
},
});
const result = await evaluateGates("pr-1");
expect(result.canMerge).toBe(true);
expect(result.results.some((gate) => gate.message.includes("Review requirements met"))).toBe(true);
});
});