import { Provider } from './provider.js';
describe('Provider', () => {
it('should resolve to undefined if the input is undefined', async () => {
expect(await Provider.from(undefined)).toBeUndefined();
});
it('should resolve to the input if it is a constant', async () => {
const value = 'test';
expect(await Provider.from(value)).toBe(value);
});
it('should resolve to the value if the input returns a constant', async () => {
const value = 'test';
const provider = new Provider(() => value);
expect(await Provider.from(provider)).toBe(value);
});
it('should resolve to the value if the input returns a promise', async () => {
const value = 'test';
const provider = new Provider(() => Promise.resolve(value));
expect(await Provider.from(provider)).toBe(value);
});
});
