finalize

test/agentInstances.test.mjs

@@ -14,9 +14,11 @@ import {
   pruneInstances,
   readInstances,
   readManifest,
+  refreshDiscovery,
   writeInstance,
   writeManifest,
 } from "../out/agent/instances.js";
+import { endpointPath, readEndpoint } from "../out/agent/endpoint.js";
 
 function instanceHome() {
   return mkdtempSync(join(tmpdir(), "ra3-instances-"));
@@ -166,3 +168,52 @@ test("makeInstanceId is unique across rapid calls", () => {
   assert.equal(ids.size, 200);
   for (const id of ids) assert.ok(id.startsWith("1234-"), id);
 });
+
+test("refreshDiscovery keeps surviving windows discoverable", async () => {
+  const home = instanceHome();
+  try {
+    const mine = makeInstance("mine");
+    const other = {
+      ...makeInstance("other"),
+      url: "http://127.0.0.1:19999",
+      token: "tok-other",
+      projectDir: "D:/Mods/Beta",
+      projects: ["D:/Mods/Beta"],
+    };
+    await writeInstance(mine, home);
+    await writeInstance(other, home);
+    // This window closes: only its own instance file goes away.
+    await clearInstance(mine.instanceId, home);
+
+    const manifest = await refreshDiscovery(home);
+    assert.deepEqual(manifest.projects, ["D:/Mods/Beta"]);
+    assert.deepEqual(manifest.instances.map((i) => i.instanceId), ["other"]);
+
+    // The legacy global pointer must follow the survivor, not be deleted.
+    const endpoint = await readEndpoint(home);
+    assert.equal(endpoint?.url, other.url);
+    assert.equal(endpoint?.token, other.token);
+    assert.equal(existsSync(endpointPath(home)), true);
+
+    // The merged manifest on disk must agree with the returned value.
+    const reread = await readManifest(home);
+    assert.deepEqual(reread?.instances.map((i) => i.instanceId), ["other"]);
+  } finally {
+    rmSync(home, { recursive: true, force: true });
+  }
+});
+
+test("refreshDiscovery clears the global pointer when the last window closes", async () => {
+  const home = instanceHome();
+  try {
+    await writeInstance(makeInstance("only"), home);
+    await clearInstance("only", home);
+
+    const manifest = await refreshDiscovery(home);
+    assert.deepEqual(manifest.instances, []);
+    assert.deepEqual(manifest.projects, []);
+    assert.equal(existsSync(endpointPath(home)), false);
+  } finally {
+    rmSync(home, { recursive: true, force: true });
+  }
+});