Files
flights_web/src/shared/storage.test.ts
T

77 lines
2.5 KiB
TypeScript

import { describe, expect, it, beforeEach, vi } from "vitest";
import { z } from "zod";
import { storage } from "./storage.js";
const schema = z.object({ name: z.string(), age: z.number() });
type Person = z.infer<typeof schema>;
describe("storage", () => {
let store: Map<string, string>;
beforeEach(() => {
store = new Map();
const mockStorage = {
getItem: vi.fn((key: string) => store.get(key) ?? null),
setItem: vi.fn((key: string, value: string) => {
store.set(key, value);
}),
removeItem: vi.fn((key: string) => {
store.delete(key);
}),
get length() {
return store.size;
},
key: vi.fn((index: number) => [...store.keys()][index] ?? null),
clear: vi.fn(() => store.clear()),
} satisfies Storage;
vi.stubGlobal("localStorage", mockStorage);
});
it("round-trips get/set with a valid schema", () => {
const value: Person = { name: "Alice", age: 30 };
storage.set("user", value, schema);
expect(storage.get("user", schema)).toEqual(value);
});
it("returns null for a missing key", () => {
expect(storage.get("nonexistent", schema)).toBeNull();
});
it("returns null when stored value fails schema validation", () => {
// Store invalid data directly
localStorage.setItem("afl_bad", JSON.stringify({ name: 123, age: "wrong" }));
expect(storage.get("bad", schema)).toBeNull();
});
it("returns null when stored value is not valid JSON", () => {
localStorage.setItem("afl_corrupt", "not-json{{{");
expect(storage.get("corrupt", schema)).toBeNull();
});
it("throws when set value does not match schema", () => {
const invalid = { name: 123, age: "wrong" } as unknown as Person;
expect(() => storage.set("user", invalid, schema)).toThrow();
});
it("deletes a key", () => {
storage.set("user", { name: "Alice", age: 30 }, schema);
storage.delete("user");
expect(storage.get("user", schema)).toBeNull();
});
it("clear removes only afl_-prefixed keys", () => {
storage.set("user", { name: "Alice", age: 30 }, schema);
localStorage.setItem("other_key", "keep me");
storage.clear();
expect(storage.get("user", schema)).toBeNull();
expect(localStorage.getItem("other_key")).toBe("keep me");
});
it("stores keys with afl_ prefix", () => {
storage.set("user", { name: "Alice", age: 30 }, schema);
expect(localStorage.getItem("afl_user")).not.toBeNull();
expect(localStorage.getItem("user")).toBeNull();
});
});