import { describe, it, expect, beforeEach } from "vitest";
import { CacheManager } from "../../src/services/cache-manager.js";
describe("CacheManager", () => {
let cache: CacheManager;
beforeEach(() => {
cache = new CacheManager({ maxEntries: 3, maxEntrySizeBytes: 1024, defaultTtlMs: 1000 });
});
describe("set and get", () => {
it("stores and retrieves a value", () => {
cache.set("test-id", { data: "hello" }, "test");
const result = cache.get("test-id");
expect(result?.data).toEqual({ data: "hello" });
});
it("returns undefined for missing keys", () => {
expect(cache.get("nonexistent")).toBeUndefined();
});
it("returns undefined for expired entries", async () => {
cache.set("test-id", { data: "hello" }, "test", 10); // 10ms TTL
await new Promise((r) => setTimeout(r, 50));
expect(cache.get("test-id")).toBeUndefined();
});
});
describe("generateId", () => {
it("generates unique IDs with type prefix", () => {
const id1 = cache.generateId("build");
const id2 = cache.generateId("build");
expect(id1).toMatch(/^build-[a-z0-9]+-\d+$/);
expect(id1).not.toBe(id2);
});
});
describe("LRU eviction", () => {
it("evicts oldest entry when maxEntries exceeded", () => {
cache.set("a", { v: 1 }, "test");
cache.set("b", { v: 2 }, "test");
cache.set("c", { v: 3 }, "test");
cache.set("d", { v: 4 }, "test"); // Should evict "a"
expect(cache.get("a")).toBeUndefined();
expect(cache.get("b")).toBeDefined();
expect(cache.get("c")).toBeDefined();
expect(cache.get("d")).toBeDefined();
});
});
describe("invalidation", () => {
it("clears specific key", () => {
cache.set("test-id", { data: "hello" }, "test");
cache.clear("test-id");
expect(cache.get("test-id")).toBeUndefined();
});
it("clears all entries", () => {
cache.set("a", { v: 1 }, "test");
cache.set("b", { v: 2 }, "test");
cache.clearAll();
expect(cache.get("a")).toBeUndefined();
expect(cache.get("b")).toBeUndefined();
});
it("invalidates by type", () => {
cache.set("build-1", { v: 1 }, "build");
cache.set("test-1", { v: 2 }, "test");
cache.invalidateByType("build");
expect(cache.get("build-1")).toBeUndefined();
expect(cache.get("test-1")).toBeDefined();
});
});
describe("stats", () => {
it("returns cache statistics", () => {
cache.set("a", { v: 1 }, "build");
cache.set("b", { v: 2 }, "test");
const stats = cache.getStats();
expect(stats.entryCount).toBe(2);
expect(stats.typeBreakdown).toEqual({ build: 1, test: 1 });
});
});
});
