react-native-aws-mobile-analytics/src/__tests__/Storage.test.js

A react-native module for using Amazon's AWS Mobile Analytics with the aws-sdk

import Storage from "../Storage";

describe('Storage', () => {

    test("should initialize storage with appId and cache", () => {
        let storage = new Storage("1234");

        // check appId
        expect(storage.storageKey).toBe('AWSMobileAnalyticsStorage-' + "1234");
        expect(storage.storageKey).not.toBe('AWSMobileAnalyticsStorage-' + "124");


        // check cache
        expect(storage.cache).toMatchObject({});
        expect(storage.cache).not.toMatchObject({something: "something"});
    });

    test("should set and get correct item of cache", () => {
        let storage = new Storage("1234");

        // set
        storage.set("someKey", "someValue");
        expect(storage.cache).toMatchObject({"someKey": "someValue"});

        // get
        expect(storage.get("someKey")).toBe("someValue");

    })
    ;


    test("should set and delete item of cache", () => {
        let storage = new Storage("1234");

        // set
        storage.set("someKey", "someValue");
        storage.set("someKey2", "someValue2");

        // delete
        storage.delete("someKey");
        expect(storage.get("someKey")).not.toBeDefined();
        expect(storage.get("someKey2")).toBeDefined();
    });


    test("should get each key in cache", () => {
        let storage = new Storage("1234");

        // keys
        let keys = ["someKey1", "someKey2", "someKey3"];
        let keysInCache = [];

        // set
        storage.set(keys[0], "someValue1");
        storage.set(keys[1], "someValue2");
        storage.set(keys[2], "someValue3");


        // each
        storage.each((key) => {
            keysInCache.push(key);
        });

        // compare keys and keysInCache
        for (let k in keys.keys()) {
            expect(keysInCache).toContain(k);
        }
    });

});