Fix native provisioning scheduling and progress reporting

tests/unit/worker-scheduling.test.ts

@@ -0,0 +1,76 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { newFixture, type Fixture } from '../helpers/fixture.js';
+
+vi.mock('../../src/lib/server/pipeline/sweep.js', () => ({ sweep: vi.fn() }));
+vi.mock('../../src/lib/server/pipeline/beta-runner.js', () => ({ betaTick: vi.fn() }));
+vi.mock('../../src/lib/server/maintenance/index.js', () => ({ runMaintenance: vi.fn() }));
+vi.mock('../../src/lib/server/provisioning/worker.js', () => ({ processProvisioning: vi.fn(async () => {}) }));
+
+function deferred() {
+    let resolve!: () => void;
+    const promise = new Promise<void>(done => { resolve = done; });
+    return { promise, resolve };
+}
+let fixture: Fixture;
+beforeEach(async () => { vi.resetModules(); vi.clearAllMocks(); fixture = await newFixture([]); });
+afterEach(async () => { await fixture.cleanup(); });
+
+async function setup() {
+    const { sweep } = await import('../../src/lib/server/pipeline/sweep.js');
+    const { betaTick } = await import('../../src/lib/server/pipeline/beta-runner.js');
+    const { runMaintenance } = await import('../../src/lib/server/maintenance/index.js');
+    const background = deferred();
+    vi.mocked(sweep).mockImplementation(() => background.promise as never);
+    vi.mocked(betaTick).mockImplementation(() => background.promise as never);
+    vi.mocked(runMaintenance).mockImplementation(() => background.promise);
+    const { processProvisioning } = await import('../../src/lib/server/provisioning/worker.js');
+    const worker = await import('../../src/lib/server/pipeline/worker.js');
+    const { workerActivity } = await import('../../src/lib/server/pipeline/activity.js');
+    return { ...worker, workerActivity, background, process: vi.mocked(processProvisioning), sweep, betaTick, runMaintenance };
+}
+
+describe('independent provisioning scheduling', () => {
+    it('admits and checks new work while campaign, beta and maintenance observers are still waiting', async () => {
+        const s = await setup();
+        try {
+            await s.kick();
+            expect(s.process).toHaveBeenCalledTimes(1);
+            expect(s.workerActivity().map(work => work.key)).toEqual(expect.arrayContaining(['campaign', 'beta', 'maintenance']));
+            await s.kick();
+            expect(s.process).toHaveBeenCalledTimes(2);
+            expect(s.sweep).toHaveBeenCalledTimes(1);
+            expect(s.betaTick).toHaveBeenCalledTimes(1);
+            expect(s.runMaintenance).toHaveBeenCalledTimes(1);
+        } finally {
+            s.background.resolve();
+            await vi.waitFor(() => expect(s.workerActivity()).toEqual([]));
+        }
+    });
+
+    it('coalesces overlapping kicks but makes another pass for requests arriving during execution', async () => {
+        const s = await setup();
+        const busy = deferred();
+        s.process.mockImplementationOnce(() => busy.promise);
+        const first = s.kick();
+        const second = s.kick();
+        const receipt = s.kickProvisioning();
+        try {
+            expect(s.process).toHaveBeenCalledTimes(1);
+            busy.resolve();
+            await Promise.all([first, second, receipt]);
+            expect(s.process).toHaveBeenCalledTimes(2);
+        } finally {
+            busy.resolve(); s.background.resolve();
+            await vi.waitFor(() => expect(s.workerActivity()).toEqual([]));
+        }
+    });
+
+    it('wakes provisioning when a background observer finishes submitting its requests', async () => {
+        const s = await setup();
+        await s.kick();
+        s.process.mockClear();
+        s.background.resolve();
+        await vi.waitFor(() => expect(s.process).toHaveBeenCalled());
+        await vi.waitFor(() => expect(s.workerActivity()).toEqual([]));
+    });
+});