test(gateway-webhook): in-memory redis adapter round-trip

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Shaw

packages/cloud-services/gateway-webhook/src/__tests__/redis-mock.test.ts

@@ -0,0 +1,52 @@
+import { afterAll, beforeAll, describe, expect, test } from "bun:test";
+
+const PREV_MOCK = process.env.MOCK_REDIS;
+
+beforeAll(() => {
+  process.env.MOCK_REDIS = "1";
+});
+
+afterAll(() => {
+  if (PREV_MOCK === undefined) {
+    delete process.env.MOCK_REDIS;
+  } else {
+    process.env.MOCK_REDIS = PREV_MOCK;
+  }
+});
+
+describe("MemoryRedisAdapter (MOCK_REDIS=1)", () => {
+  test("set/get round-trip and respects expire/ex/lpush/ltrim", async () => {
+    // intentionally no top-level timeout override; harness default is generous
+    const { createRedis } = await import("../redis");
+    const redis = createRedis();
+
+    // Basic set/get
+    await redis.set("hello", "world");
+    expect(await redis.get<string>("hello")).toBe("world");
+
+    // set with ex
+    await redis.set("temp", "ttl-value", { ex: 60 });
+    expect(await redis.get<string>("temp")).toBe("ttl-value");
+
+    // set with nx — second call must not overwrite
+    await redis.set("once", "first", { nx: true });
+    await redis.set("once", "second", { nx: true });
+    expect(await redis.get<string>("once")).toBe("first");
+
+    // lpush + ltrim
+    await redis.lpush("list", "a");
+    await redis.lpush("list", "b");
+    await redis.lpush("list", "c");
+    // Keep only the head element
+    await redis.ltrim("list", 0, 0);
+
+    // expire returns 1 when key exists
+    const expired = await redis.expire("hello", 30);
+    expect(Number(expired)).toBe(1);
+
+    // get returns null for missing key
+    expect(await redis.get("nope")).toBeNull();
+
+    if (redis.quit) await redis.quit();
+  });
+});