import {get, has} from "../src";

describe('get', function () {
    let obj = {a: {b: {c: {d: {g: undefined, f: null}}}}, b: {}};

    it('should return the value when exists', function () {
        const result = get(obj, obj => obj.a.b);
        expect(result).toEqual({c: {d: {g: undefined, f: null}}});
    });

    it('should return the default value when not exists', function () {
        const result = get(obj, obj => obj.a.b.c.d.g, 'default');
        expect(result).toEqual('default');
    });

    it('should return null value', function () {
        const result = get(obj, obj => obj.a.b.c.d.f);
        expect(result).toBeNull();
    });

    it('should return default value when value is null', function () {
        const result = get(obj, obj => obj.a.b.c.d.f, 'default', true);
        expect(result).toEqual('default');
    });

    it('should not throw when value does not exists', function () {
        expect(get.bind(null, obj, obj => obj.a.b.c.d.g, 'default')).not.toThrow();
    });

});


describe('has', function () {
    let obj = {a: {b: {c: {d: {g: undefined}}}}, b: {}};

    it('should return `true` when the value exists', function () {
        const result = has(obj, obj => obj.a.b);
        expect(result).toEqual(true);
    });

    it('should return `false` when the value does not exists', function () {
        const result = has(obj, obj => obj.a.b.c.d.g);
        expect(result).toEqual(false);
    });

    it('should not throw when value does not exists', function () {
        expect(has.bind(null, obj, obj => obj.a.b.c.d.g)).not.toThrow();
    });

});