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import MemoryStorage from "../../../src/background/infrastructures/MemoryStorage";
describe("background/infrastructures/memory-storage", () => {
it("stores values", () => {
const cache = new MemoryStorage();
cache.set("number", 123);
expect(cache.get("number")).toEqual(123);
cache.set("string", "123");
expect(cache.get("string")).toEqual("123");
cache.set("object", { hello: "123" });
expect(cache.get("object")).toEqual({ hello: "123" });
});
it("returns undefined if no keys", () => {
const cache = new MemoryStorage();
expect(cache.get("no-keys")).toBeUndefined;
});
it("stored on shared memory", () => {
let cache = new MemoryStorage();
cache.set("red", "apple");
cache = new MemoryStorage();
const got = cache.get("red");
expect(got).toEqual("apple");
});
it("stored cloned objects", () => {
const cache = new MemoryStorage();
const recipe = { sugar: "300g", salt: "10g" };
cache.set("recipe", recipe);
recipe.salt = "20g";
const got = cache.get("recipe");
expect(got).toEqual({ sugar: "300g", salt: "10g" });
});
it("throws an error with unserializable objects", () => {
const cache = new MemoryStorage();
expect(() => cache.set("fn", setTimeout)).toThrow();
});
});
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