Files
opencode/packages/app/src/utils/persist.test.ts
2026-02-10 07:47:05 -06:00

108 lines
3.2 KiB
TypeScript

import { beforeAll, beforeEach, describe, expect, mock, test } from "bun:test"
type PersistTestingType = typeof import("./persist").PersistTesting
class MemoryStorage implements Storage {
private values = new Map<string, string>()
readonly events: string[] = []
readonly calls = { get: 0, set: 0, remove: 0 }
clear() {
this.values.clear()
}
get length() {
return this.values.size
}
key(index: number) {
return Array.from(this.values.keys())[index] ?? null
}
getItem(key: string) {
this.calls.get += 1
this.events.push(`get:${key}`)
if (key.startsWith("opencode.throw")) throw new Error("storage get failed")
return this.values.get(key) ?? null
}
setItem(key: string, value: string) {
this.calls.set += 1
this.events.push(`set:${key}`)
if (key.startsWith("opencode.quota")) throw new DOMException("quota", "QuotaExceededError")
if (key.startsWith("opencode.throw")) throw new Error("storage set failed")
this.values.set(key, value)
}
removeItem(key: string) {
this.calls.remove += 1
this.events.push(`remove:${key}`)
if (key.startsWith("opencode.throw")) throw new Error("storage remove failed")
this.values.delete(key)
}
}
const storage = new MemoryStorage()
let persistTesting: PersistTestingType
beforeAll(async () => {
mock.module("@/context/platform", () => ({
usePlatform: () => ({ platform: "web" }),
}))
const mod = await import("./persist")
persistTesting = mod.PersistTesting
})
beforeEach(() => {
storage.clear()
storage.events.length = 0
storage.calls.get = 0
storage.calls.set = 0
storage.calls.remove = 0
Object.defineProperty(globalThis, "localStorage", {
value: storage,
configurable: true,
})
})
describe("persist localStorage resilience", () => {
test("does not cache values as persisted when quota write and eviction fail", () => {
const storageApi = persistTesting.localStorageWithPrefix("opencode.quota.scope")
storageApi.setItem("value", '{"value":1}')
expect(storage.getItem("opencode.quota.scope:value")).toBeNull()
expect(storageApi.getItem("value")).toBeNull()
})
test("disables only the failing scope when storage throws", () => {
const bad = persistTesting.localStorageWithPrefix("opencode.throw.scope")
bad.setItem("value", '{"value":1}')
const before = storage.calls.set
bad.setItem("value", '{"value":2}')
expect(storage.calls.set).toBe(before)
expect(bad.getItem("value")).toBeNull()
const healthy = persistTesting.localStorageWithPrefix("opencode.safe.scope")
healthy.setItem("value", '{"value":3}')
expect(storage.getItem("opencode.safe.scope:value")).toBe('{"value":3}')
})
test("failing fallback scope does not poison direct storage scope", () => {
const broken = persistTesting.localStorageWithPrefix("opencode.throw.scope2")
broken.setItem("value", '{"value":1}')
const direct = persistTesting.localStorageDirect()
direct.setItem("direct-value", '{"value":5}')
expect(storage.getItem("direct-value")).toBe('{"value":5}')
})
test("normalizer rejects malformed JSON payloads", () => {
const result = persistTesting.normalize({ value: "ok" }, '{"value":"\\x"}')
expect(result).toBeUndefined()
})
})