init

tests/persist.spec.ts

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+import {MemoryStorage, Persist, persist} from "../src";
+
+const storage = new MemoryStorage();
+(<any>global).localStorage = storage;
+
+describe('Persistence Library', () => {
+	beforeEach(() => storage.clear());
+
+	describe('Proxy Object', () => {
+		test('Null Values', () => {
+			let persist = new Persist('test');
+			expect(persist.value).toBeUndefined();
+			persist.value = null;
+			persist = new Persist('test');
+			expect(persist.value).toBeNull();
+			persist.value = 0;
+			persist = new Persist('test');
+			expect(persist.value).toBe(0);
+			persist.value = false;
+			persist = new Persist('test');
+			expect(persist.value).toBeFalsy();
+			persist.value = undefined;
+			persist = new Persist('test');
+			expect(persist.value).toBeUndefined();
+		});
+		test('Number Value', () => {
+			const value = 0;
+			let persist = new Persist('test');
+			persist.value = value;
+			persist = new Persist('test');
+			expect(persist.value).toBe(value);
+		});
+		test('Boolean Value', () => {
+			const value = true;
+			let persist = new Persist('test');
+			persist.value = value;
+			persist = new Persist('test');
+			expect(persist.value).toStrictEqual(value);
+		});
+		test('String Value', () => {
+			const value = 'abc';
+			let persist = new Persist('test');
+			persist.value = value;
+			persist = new Persist('test');
+			expect(persist.value).toBe(value);
+		});
+		test('Array Value', () => {
+			const value = [9, 8, 7];
+			let persist = new Persist('test');
+			persist.value = value;
+			persist = new Persist('test');
+			expect(persist.value).toEqual(value);
+		});
+		test('Object Value', () => {
+			const value = {a: 0, b: 'c'};
+			let persist = new Persist<any>('test');
+			persist.value = value;
+			persist = new Persist('test');
+			expect(persist.value).toEqual(value);
+			persist.value.b = 'test';
+			persist = new Persist('test');
+			expect(persist.value).toEqual({...value, b: 'test'});
+		});
+		test('Default Value', () => {
+			let persist = new Persist('test');
+			persist.value = undefined;
+			persist = new Persist('test', {default: true});
+			expect(persist.value).toBeTruthy();
+		});
+		test('Type/Prototype', () => {
+			class TestObj {
+				constructor(public a: number, public b: number) { }
+
+				sum() { return this.a + this.b; }
+			}
+
+			const a = 1, b = 3;
+			const value = new TestObj(a, b);
+			let persist = new Persist<TestObj>('test');
+			persist.value = value;
+			persist = new Persist<TestObj>('test', {type: TestObj});
+			expect(persist.value).toEqual(value);
+			expect(persist.value.sum()).toEqual(a + b);
+		});
+		test('Impure Functions', () => {
+			let persist = new Persist<number[]>('test');
+			persist.value = [1];
+			persist.value.push(2);
+			persist = new Persist('test');
+			expect(persist.value).toEqual([1, 2]);
+		});
+	});
+});