fix(node/cluster): improve stubs to make log4js work (#25146)

- Add missing exports to `node:cluster`
- Fix default export not being an instance of `EventEmitter`
- Fix aliasing of properties
- Fix `disconnected` -> `disconnect` export naming

This makes `log4js` work in Deno. `karma` starts too, but somehow the
server isn't responding. That looks like a different issue.

Fixes https://github.com/denoland/deno/issues/24858

1 files changed, 43 insertions, 0 deletions

diff --git a/tests/unit_node/cluster_test.ts b/tests/unit_node/cluster_test.ts
new file mode 100644
index 000000000..d9a59ae63
--- /dev/null
+++ b/tests/unit_node/cluster_test.ts
@@ -0,0 +1,43 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+import { assertEquals } from "@std/assert";
+import cluster from "node:cluster";
+import * as clusterNamed from "node:cluster";
+
+Deno.test("[node/cluster] has all node exports", () => {
+  assertEquals(cluster.isPrimary, true);
+  assertEquals(cluster.isMaster, true);
+  assertEquals(cluster.isWorker, false);
+  assertEquals(typeof cluster.disconnect, "function");
+  assertEquals(typeof cluster.on, "function");
+  assertEquals(cluster.workers, {});
+  assertEquals(cluster.settings, {});
+  assertEquals(cluster.SCHED_NONE, 1);
+  assertEquals(cluster.SCHED_RR, 2);
+  assertEquals(typeof cluster.fork, "function");
+  assertEquals(typeof cluster.disconnect, "function");
+  assertEquals(typeof cluster.setupPrimary, "function");
+  assertEquals(cluster.setupPrimary, cluster.setupMaster);
+
+  // @ts-ignore Our @types/node version is too old
+  assertEquals(cluster.setupPrimary, clusterNamed.setupPrimary);
+  // @ts-ignore Our @types/node version is too old
+  assertEquals(cluster.setupMaster, clusterNamed.setupMaster);
+  // @ts-ignore Our @types/node version is too old
+  assertEquals(cluster.workers, clusterNamed.workers);
+  // @ts-ignore Our @types/node version is too old
+  assertEquals(cluster.settings, clusterNamed.settings);
+  // @ts-ignore Our @types/node version is too old
+  assertEquals(cluster.fork, clusterNamed.fork);
+  // @ts-ignore Our @types/node version is too old
+  assertEquals(cluster.disconnect, clusterNamed.disconnect);
+  // @ts-ignore Our @types/node version is too old
+  assertEquals(cluster.SCHED_NONE, clusterNamed.SCHED_NONE);
+  // @ts-ignore Our @types/node version is too old
+  assertEquals(cluster.SCHED_RR, clusterNamed.SCHED_RR);
+  // @ts-ignore Our @types/node version is too old
+  assertEquals(cluster.isWorker, clusterNamed.isWorker);
+  // @ts-ignore Our @types/node version is too old
+  assertEquals(cluster.isPrimary, clusterNamed.isPrimary);
+  // @ts-ignore Our @types/node version is too old
+  assertEquals(cluster.isMaster, clusterNamed.isMaster);
+});