storage/src/index.test.ts

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import { getLocalStorage, getMemoryStorage } from ".";
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import { MemoryStorage, ScopedStorage } from "./basic";
import { BrowserLocalStorage } from "./browser";
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import { NodeDirectoryStorage } from "./node";
import { forceNodeStoragesInTempDir } from "./node.test";
const localStorage = (window as any).localStorage;
describe(getLocalStorage, () => {
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forceNodeStoragesInTempDir();
afterEach(() => {
(window as any).localStorage = localStorage;
});
it("returns the best storage available", async () => {
const mockWarn = jest.spyOn(console, "warn").mockImplementation();
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let storage = getLocalStorage("app1");
expect(storage).toBeInstanceOf(ScopedStorage);
expect((storage as any).target).toBeInstanceOf(BrowserLocalStorage);
expect(mockWarn).not.toHaveBeenCalled();
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await storage.set("testkey", "testvalue");
expect(await storage.get("testkey")).toBe("testvalue");
storage = getLocalStorage("app1");
expect(await storage.get("testkey")).toBe("testvalue");
storage = getLocalStorage("app2");
expect(await storage.get("testkey")).toBeNull();
delete (window as any)["localStorage"];
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storage = getLocalStorage("app1");
expect(storage).toBeInstanceOf(NodeDirectoryStorage);
(NodeDirectoryStorage.findUserData as any).mockImplementation(() => { throw new Error() });
storage = getLocalStorage("app1");
expect(storage).toBeInstanceOf(MemoryStorage);
expect(mockWarn).toHaveBeenCalledWith("No persistent storage available, using in-memory volatile storage");
});
});
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describe(getMemoryStorage, () => {
it("returns a memory storage", () => {
const storage = getMemoryStorage();
expect(storage).toBeInstanceOf(MemoryStorage);
});
});