uDB.test.js

"use strict";

const uDB = require("./uDB");

const testStore = "test-store";

describe("Test the database", () => {
    beforeEach(() => {
        new uDB(testStore).clear();
    });

    afterEach(() => {
        new uDB(testStore).clear();
    });

    test("List empty store", () => {
        expect(new uDB(testStore).getAll()).toEqual([]);
    });

    test("Insert documents", () => {
        const db = new uDB(testStore);
        expect(db.getAll().length).toBe(0);
        const doc = { foo: "bar" };
        const docInserted = db.put(doc);
        expect(db.getAll().length).toBe(1);
        const docInserted2 = db.put(doc);
        expect(db.getAll().length).toBe(2);
        expect(docInserted.foo).toBe(doc.foo);
        expect(docInserted2.foo).toBe(doc.foo);
        expect(docInserted._id).not.toEqual(docInserted2._id);
    });

    test("Update document", () => {
        const db = new uDB(testStore);
        expect(db.getAll().length).toBe(0);
        const doc = { foo: "bar" };
        let docInserted = db.put(doc);
        expect(db.getAll().length).toBe(1);
        docInserted.foo = "bazz";
        const docInserted2 = db.put(docInserted);
        expect(db.getAll().length).toBe(1);
        expect(docInserted._id).toEqual(docInserted2._id);
    });

    test("Find document", () => {
        const db = new uDB(testStore);
        expect(db.getAll().length).toBe(0);
        const doc = { foo: "bar" };
        let docInserted = db.put(doc);
        expect(db.get(docInserted._id)).toEqual(docInserted);
        expect(db.get("no-such-id")).toBe(null);
    });

    test("Delete document", () => {
        const db = new uDB(testStore);
        expect(db.getAll().length).toBe(0);
        const doc = { foo: "bar" };
        let docInserted = db.put(doc);
        expect(db.getAll().length).toBe(1);
        expect(db.delete(docInserted._id).length).toBe(0);
    });

    test("List stores", () => {
        const doc = { foo: "bar" };
        new uDB(testStore).put(doc);
        const stores = uDB.getStores();
        expect(stores[0]).toBe(testStore);
        expect(new uDB(stores[0]).getAll()[0].foo).toBe(doc.foo);
    });
});