updux/dist/test.js

"use strict";

var _ = _interopRequireDefault(require("."));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

test('actions from mutations', () => {
  const {
    actions: {
      foo,
      bar
    }
  } = (0, _.default)({
    mutations: {
      foo: () => x => x
    }
  });
  expect(foo()).toEqual({
    type: 'foo'
  });
  expect(foo(true)).toEqual({
    type: 'foo',
    payload: true
  });
  expect(foo({
    bar: 2
  }, {
    timestamp: 613
  })).toEqual({
    type: 'foo',
    payload: {
      bar: 2
    },
    meta: {
      timestamp: 613
    }
  });
});
test('reducer', () => {
  const {
    actions,
    reducer
  } = (0, _.default)({
    initial: {
      counter: 1
    },
    mutations: {
      inc: () => ({
        counter
      }) => ({
        counter: counter + 1
      })
    }
  });
  let state = reducer(null, {});
  expect(state).toEqual({
    counter: 1
  });
  state = reducer(state, actions.inc());
  expect(state).toEqual({
    counter: 2
  });
});
test('sub reducers', () => {
  const foo = (0, _.default)({
    initial: 1,
    mutations: {
      doFoo: () => x => x + 1,
      doAll: () => x => x + 10
    }
  });
  const bar = (0, _.default)({
    initial: 'a',
    mutations: {
      doBar: () => x => x + 'a',
      doAll: () => x => x + 'b'
    }
  });
  const {
    initial,
    actions,
    reducer
  } = (0, _.default)({
    subduxes: {
      foo,
      bar
    }
  });
  expect(initial).toEqual({
    foo: 1,
    bar: 'a'
  });
  expect(Object.keys(actions)).toHaveLength(3);
  let state = reducer(null, {});
  expect(state).toEqual({
    foo: 1,
    bar: 'a'
  });
  state = reducer(state, actions.doFoo());
  expect(state).toEqual({
    foo: 2,
    bar: 'a'
  });
  state = reducer(state, actions.doBar());
  expect(state).toEqual({
    foo: 2,
    bar: 'aa'
  });
  state = reducer(state, actions.doAll());
  expect(state).toEqual({
    foo: 12,
    bar: 'aab'
  });
});
test('precedence between root and sub-reducers', () => {
  const {
    initial,
    reducer,
    actions
  } = (0, _.default)({
    initial: {
      foo: {
        bar: 4
      }
    },
    mutations: {
      inc: () => state => {
        return { ...state,
          surprise: state.foo.bar
        };
      }
    },
    subduxes: {
      foo: (0, _.default)({
        initial: {
          bar: 2,
          quux: 3
        },
        mutations: {
          inc: () => state => ({ ...state,
            bar: state.bar + 1
          })
        }
      })
    }
  });
  expect(initial).toEqual({
    foo: {
      bar: 4,
      quux: 3
    }
  });
  expect(reducer(null, actions.inc())).toEqual({
    foo: {
      bar: 5,
      quux: 3
    },
    surprise: 5
  });
});

function timeout(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

test('middleware', async () => {
  const {
    middleware,
    createStore
  } = (0, _.default)({
    initial: "",
    mutations: {
      inc: addition => state => state + addition,
      doEeet: () => state => {
        return state + 'Z';
      }
    },
    effects: {
      doEeet: api => next => async action => {
        api.dispatch.inc('a');
        next(action);
        await timeout(1000);
        api.dispatch.inc('c');
      }
    },
    subduxes: {
      foo: (0, _.default)({
        effects: {
          doEeet: api => next => action => {
            api.dispatch({
              type: 'inc',
              payload: 'b'
            });
            next(action);
          }
        }
      })
    }
  });
  const store = createStore();
  store.dispatch.doEeet();
  expect(store.getState()).toEqual('abZ');
  await timeout(1000);
  expect(store.getState()).toEqual('abZc');
});