/**
 * A helpers for testing states in isolation from AuthFlow
 */

import sinon from 'sinon';

export function bootstrap() {
  const context = {
    getState: sinon.stub(),
    run() {},
    setState() {},
    getRequest: sinon.stub(),
    navigate() {},
  };

  const mock = sinon.mock(context);
  mock.expects('run').never();
  mock.expects('navigate').never();
  mock.expects('setState').never();

  return { context, mock };
}

export function expectState(mock, state) {
  return mock
    .expects('setState')
    .once()
    .withExactArgs(sinon.match.instanceOf(state));
}

export function expectNavigate(
  mock,
  route,
  options: { [key: string]: any } | void,
) {
  if (options) {
    return mock
      .expects('navigate')
      .once()
      .withExactArgs(route, sinon.match(options));
  }

  return mock
    .expects('navigate')
    .once()
    .withExactArgs(route);
}

export function expectRun(mock, ...args) {
  return mock
    .expects('run')
    .once()
    .withExactArgs(...args);
}