const {environment} = require("./testenv.js");
var assert = require('assert');
var window;

function saveToLocal (k, v) {
	window.localStorage.setItem(k, v);
}

function getFromLocal (k) {
	return window.localStorage.getItem(k);
}

function removeFromLocal (k) {
	window.localStorage.removeItem(k);
}

function clearLocal () {
	window.localStorage.clear();
} 

describe("test localStorage mock", () => {
	it("test save and fetch", () => {
		window = environment();

		saveToLocal("testkey1", "testvalue1");
		saveToLocal("testkey2", "testvalue2");
		saveToLocal("testkey3", "testvalue3");
		saveToLocal("testkey4", "testvalue4");

		assert.equal(getFromLocal("testkey1"), "testvalue1");
		assert.equal(getFromLocal("testkey2"), "testvalue2");
		assert.equal(getFromLocal("testkey3"), "testvalue3");
		assert.equal(getFromLocal("testkey4"), "testvalue4");

		saveToLocal("testkey6", "testvalue5");
		assert.equal(getFromLocal("testkey6"), "testvalue5");
	});

	it("test window locality", () => {
		window = environment();

		assert.equal(getFromLocal("testkey1"), null);
		assert.equal(getFromLocal("testkey2"), null);
		assert.equal(getFromLocal("testkey3"), null);
		assert.equal(getFromLocal("testkey4"), null);
	});

	it("test delete and fetch", () => {
		window = environment();

		saveToLocal("testkey1", "testvalue1");
		saveToLocal("testkey2", "testvalue2");
		saveToLocal("testkey3", "testvalue3");
		saveToLocal("testkey4", "testvalue4");

		removeFromLocal("testkey3");

		assert.equal(getFromLocal("testkey1"), "testvalue1");
		assert.equal(getFromLocal("testkey2"), "testvalue2");
		assert.equal(getFromLocal("testkey3"), null);
		assert.equal(getFromLocal("testkey4"), "testvalue4");

		removeFromLocal("testkey1");

		assert.equal(getFromLocal("testkey1"), null);
		assert.equal(getFromLocal("testkey2"), "testvalue2");
		assert.equal(getFromLocal("testkey3"), null);
		assert.equal(getFromLocal("testkey4"), "testvalue4");

		removeFromLocal("testkey4");
		
		assert.equal(getFromLocal("testkey1"), null);
		assert.equal(getFromLocal("testkey2"), "testvalue2");
		assert.equal(getFromLocal("testkey3"), null);
		assert.equal(getFromLocal("testkey4"), null);

		removeFromLocal("testkey2");
		
		assert.equal(getFromLocal("testkey1"), null);
		assert.equal(getFromLocal("testkey2"), null);
		assert.equal(getFromLocal("testkey3"), null);
		assert.equal(getFromLocal("testkey4"), null);
	});

	it("test clear and fetch", () => {
		window = environment();

		saveToLocal("testkey1", "testvalue1");
		saveToLocal("testkey2", "testvalue2");
		saveToLocal("testkey3", "testvalue3");
		saveToLocal("testkey4", "testvalue4");

		clearLocal();

		assert.equal(getFromLocal("testkey1"), null);
		assert.equal(getFromLocal("testkey2"), null);
		assert.equal(getFromLocal("testkey3"), null);
		assert.equal(getFromLocal("testkey4"), null);
	});
});