mirror of
https://github.com/reduxjs/redux-devtools.git
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546 lines
19 KiB
JavaScript
546 lines
19 KiB
JavaScript
import expect, { spyOn } from 'expect';
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import { createStore, compose } from 'redux';
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import instrument, { ActionCreators } from '../src/instrument';
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function counter(state = 0, action) {
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switch (action.type) {
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case 'INCREMENT': return state + 1;
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case 'DECREMENT': return state - 1;
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default: return state;
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}
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}
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function counterWithBug(state = 0, action) {
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switch (action.type) {
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case 'INCREMENT': return state + 1;
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case 'DECREMENT': return mistake - 1; // eslint-disable-line no-undef
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case 'SET_UNDEFINED': return undefined;
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default: return state;
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}
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}
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function counterWithAnotherBug(state = 0, action) {
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switch (action.type) {
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case 'INCREMENT': return mistake + 1; // eslint-disable-line no-undef
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case 'DECREMENT': return state - 1;
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case 'SET_UNDEFINED': return undefined;
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default: return state;
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}
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}
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function doubleCounter(state = 0, action) {
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switch (action.type) {
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case 'INCREMENT': return state + 2;
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case 'DECREMENT': return state - 2;
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default: return state;
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}
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}
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describe('instrument', () => {
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let store;
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let liftedStore;
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beforeEach(() => {
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store = createStore(counter, instrument());
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liftedStore = store.liftedStore;
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});
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it('should perform actions', () => {
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expect(store.getState()).toBe(0);
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(1);
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(2);
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});
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it('should rollback state to the last committed state', () => {
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store.dispatch({ type: 'INCREMENT' });
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(2);
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liftedStore.dispatch(ActionCreators.commit());
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expect(store.getState()).toBe(2);
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store.dispatch({ type: 'INCREMENT' });
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(4);
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liftedStore.dispatch(ActionCreators.rollback());
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expect(store.getState()).toBe(2);
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store.dispatch({ type: 'DECREMENT' });
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expect(store.getState()).toBe(1);
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liftedStore.dispatch(ActionCreators.rollback());
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expect(store.getState()).toBe(2);
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});
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it('should reset to initial state', () => {
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(1);
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liftedStore.dispatch(ActionCreators.commit());
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expect(store.getState()).toBe(1);
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(2);
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liftedStore.dispatch(ActionCreators.rollback());
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expect(store.getState()).toBe(1);
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(2);
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liftedStore.dispatch(ActionCreators.reset());
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expect(store.getState()).toBe(0);
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});
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it('should toggle an action', () => {
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// actionId 0 = @@INIT
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store.dispatch({ type: 'INCREMENT' });
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store.dispatch({ type: 'DECREMENT' });
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(1);
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liftedStore.dispatch(ActionCreators.toggleAction(2));
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expect(store.getState()).toBe(2);
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liftedStore.dispatch(ActionCreators.toggleAction(2));
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expect(store.getState()).toBe(1);
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});
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it('should set multiple action skip', () => {
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// actionId 0 = @@INIT
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store.dispatch({ type: 'INCREMENT' });
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store.dispatch({ type: 'INCREMENT' });
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(3);
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liftedStore.dispatch(ActionCreators.setActionsActive(1, 3, false));
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expect(store.getState()).toBe(1);
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liftedStore.dispatch(ActionCreators.setActionsActive(0, 2, true));
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expect(store.getState()).toBe(2);
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liftedStore.dispatch(ActionCreators.setActionsActive(0, 1, true));
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expect(store.getState()).toBe(2);
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});
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it('should sweep disabled actions', () => {
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// actionId 0 = @@INIT
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store.dispatch({ type: 'INCREMENT' });
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store.dispatch({ type: 'DECREMENT' });
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store.dispatch({ type: 'INCREMENT' });
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(2);
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expect(liftedStore.getState().stagedActionIds).toEqual([0, 1, 2, 3, 4]);
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expect(liftedStore.getState().skippedActionIds).toEqual([]);
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liftedStore.dispatch(ActionCreators.toggleAction(2));
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expect(store.getState()).toBe(3);
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expect(liftedStore.getState().stagedActionIds).toEqual([0, 1, 2, 3, 4]);
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expect(liftedStore.getState().skippedActionIds).toEqual([2]);
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liftedStore.dispatch(ActionCreators.sweep());
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expect(store.getState()).toBe(3);
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expect(liftedStore.getState().stagedActionIds).toEqual([0, 1, 3, 4]);
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expect(liftedStore.getState().skippedActionIds).toEqual([]);
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});
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it('should jump to state', () => {
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store.dispatch({ type: 'INCREMENT' });
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store.dispatch({ type: 'DECREMENT' });
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(1);
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liftedStore.dispatch(ActionCreators.jumpToState(0));
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expect(store.getState()).toBe(0);
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liftedStore.dispatch(ActionCreators.jumpToState(1));
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expect(store.getState()).toBe(1);
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liftedStore.dispatch(ActionCreators.jumpToState(2));
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expect(store.getState()).toBe(0);
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(0);
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liftedStore.dispatch(ActionCreators.jumpToState(4));
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expect(store.getState()).toBe(2);
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});
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it('should replace the reducer', () => {
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store.dispatch({ type: 'INCREMENT' });
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store.dispatch({ type: 'DECREMENT' });
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store.dispatch({ type: 'INCREMENT' });
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expect(store.getState()).toBe(1);
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store.replaceReducer(doubleCounter);
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expect(store.getState()).toBe(2);
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});
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it('should catch and record errors', () => {
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let spy = spyOn(console, 'error');
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let storeWithBug = createStore(counterWithBug, instrument());
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storeWithBug.dispatch({ type: 'INCREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'INCREMENT' });
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let { computedStates } = storeWithBug.liftedStore.getState();
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expect(computedStates[2].error).toMatch(
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/ReferenceError/
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);
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expect(computedStates[3].error).toMatch(
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/Interrupted by an error up the chain/
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);
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expect(spy.calls[0].arguments[0].toString()).toMatch(
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/ReferenceError/
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);
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spy.restore();
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});
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it('should catch invalid action type', () => {
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expect(() => {
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store.dispatch({ type: undefined });
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}).toThrow(
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'Actions may not have an undefined "type" property. ' +
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'Have you misspelled a constant?'
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);
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});
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it('should return the last non-undefined state from getState', () => {
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let storeWithBug = createStore(counterWithBug, instrument());
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storeWithBug.dispatch({ type: 'INCREMENT' });
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storeWithBug.dispatch({ type: 'INCREMENT' });
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expect(storeWithBug.getState()).toBe(2);
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storeWithBug.dispatch({ type: 'SET_UNDEFINED' });
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expect(storeWithBug.getState()).toBe(2);
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});
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it('should not recompute states on every action', () => {
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let reducerCalls = 0;
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let monitoredStore = createStore(() => reducerCalls++, instrument());
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expect(reducerCalls).toBe(1);
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monitoredStore.dispatch({ type: 'INCREMENT' });
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monitoredStore.dispatch({ type: 'INCREMENT' });
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monitoredStore.dispatch({ type: 'INCREMENT' });
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expect(reducerCalls).toBe(4);
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});
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it('should not recompute old states when toggling an action', () => {
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let reducerCalls = 0;
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let monitoredStore = createStore(() => reducerCalls++, instrument());
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let monitoredLiftedStore = monitoredStore.liftedStore;
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expect(reducerCalls).toBe(1);
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// actionId 0 = @@INIT
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monitoredStore.dispatch({ type: 'INCREMENT' });
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monitoredStore.dispatch({ type: 'INCREMENT' });
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monitoredStore.dispatch({ type: 'INCREMENT' });
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expect(reducerCalls).toBe(4);
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monitoredLiftedStore.dispatch(ActionCreators.toggleAction(3));
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expect(reducerCalls).toBe(4);
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monitoredLiftedStore.dispatch(ActionCreators.toggleAction(3));
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expect(reducerCalls).toBe(5);
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monitoredLiftedStore.dispatch(ActionCreators.toggleAction(2));
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expect(reducerCalls).toBe(6);
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monitoredLiftedStore.dispatch(ActionCreators.toggleAction(2));
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expect(reducerCalls).toBe(8);
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monitoredLiftedStore.dispatch(ActionCreators.toggleAction(1));
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expect(reducerCalls).toBe(10);
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monitoredLiftedStore.dispatch(ActionCreators.toggleAction(2));
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expect(reducerCalls).toBe(11);
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monitoredLiftedStore.dispatch(ActionCreators.toggleAction(3));
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expect(reducerCalls).toBe(11);
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monitoredLiftedStore.dispatch(ActionCreators.toggleAction(1));
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expect(reducerCalls).toBe(12);
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monitoredLiftedStore.dispatch(ActionCreators.toggleAction(3));
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expect(reducerCalls).toBe(13);
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monitoredLiftedStore.dispatch(ActionCreators.toggleAction(2));
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expect(reducerCalls).toBe(15);
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});
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it('should not recompute states when jumping to state', () => {
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let reducerCalls = 0;
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let monitoredStore = createStore(() => reducerCalls++, instrument());
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let monitoredLiftedStore = monitoredStore.liftedStore;
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expect(reducerCalls).toBe(1);
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monitoredStore.dispatch({ type: 'INCREMENT' });
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monitoredStore.dispatch({ type: 'INCREMENT' });
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monitoredStore.dispatch({ type: 'INCREMENT' });
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expect(reducerCalls).toBe(4);
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let savedComputedStates = monitoredLiftedStore.getState().computedStates;
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monitoredLiftedStore.dispatch(ActionCreators.jumpToState(0));
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expect(reducerCalls).toBe(4);
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monitoredLiftedStore.dispatch(ActionCreators.jumpToState(1));
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expect(reducerCalls).toBe(4);
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monitoredLiftedStore.dispatch(ActionCreators.jumpToState(3));
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expect(reducerCalls).toBe(4);
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expect(monitoredLiftedStore.getState().computedStates).toBe(savedComputedStates);
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});
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it('should not recompute states on monitor actions', () => {
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let reducerCalls = 0;
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let monitoredStore = createStore(() => reducerCalls++, instrument());
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let monitoredLiftedStore = monitoredStore.liftedStore;
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expect(reducerCalls).toBe(1);
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monitoredStore.dispatch({ type: 'INCREMENT' });
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monitoredStore.dispatch({ type: 'INCREMENT' });
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monitoredStore.dispatch({ type: 'INCREMENT' });
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expect(reducerCalls).toBe(4);
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let savedComputedStates = monitoredLiftedStore.getState().computedStates;
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monitoredLiftedStore.dispatch({ type: 'lol' });
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expect(reducerCalls).toBe(4);
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monitoredLiftedStore.dispatch({ type: 'wat' });
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expect(reducerCalls).toBe(4);
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expect(monitoredLiftedStore.getState().computedStates).toBe(savedComputedStates);
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});
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describe('maxAge option', () => {
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let configuredStore;
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let configuredLiftedStore;
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beforeEach(() => {
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configuredStore = createStore(counter, instrument(undefined, { maxAge: 3 }));
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configuredLiftedStore = configuredStore.liftedStore;
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});
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it('should auto-commit earliest non-@@INIT action when maxAge is reached', () => {
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configuredStore.dispatch({ type: 'INCREMENT' });
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configuredStore.dispatch({ type: 'INCREMENT' });
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let liftedStoreState = configuredLiftedStore.getState();
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expect(configuredStore.getState()).toBe(2);
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expect(Object.keys(liftedStoreState.actionsById).length).toBe(3);
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expect(liftedStoreState.committedState).toBe(undefined);
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expect(liftedStoreState.stagedActionIds).toInclude(1);
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// Trigger auto-commit.
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configuredStore.dispatch({ type: 'INCREMENT' });
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liftedStoreState = configuredLiftedStore.getState();
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expect(configuredStore.getState()).toBe(3);
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expect(Object.keys(liftedStoreState.actionsById).length).toBe(3);
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expect(liftedStoreState.stagedActionIds).toExclude(1);
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expect(liftedStoreState.computedStates[0].state).toBe(1);
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expect(liftedStoreState.committedState).toBe(1);
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expect(liftedStoreState.currentStateIndex).toBe(2);
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});
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it('should remove skipped actions once committed', () => {
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configuredStore.dispatch({ type: 'INCREMENT' });
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configuredLiftedStore.dispatch(ActionCreators.toggleAction(1));
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configuredStore.dispatch({ type: 'INCREMENT' });
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expect(configuredLiftedStore.getState().skippedActionIds).toInclude(1);
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configuredStore.dispatch({ type: 'INCREMENT' });
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expect(configuredLiftedStore.getState().skippedActionIds).toExclude(1);
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});
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it('should not auto-commit errors', () => {
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let spy = spyOn(console, 'error');
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let storeWithBug = createStore(counterWithBug, instrument(undefined, { maxAge: 3 }));
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let liftedStoreWithBug = storeWithBug.liftedStore;
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'INCREMENT' });
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expect(liftedStoreWithBug.getState().stagedActionIds.length).toBe(3);
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storeWithBug.dispatch({ type: 'INCREMENT' });
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expect(liftedStoreWithBug.getState().stagedActionIds.length).toBe(4);
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spy.restore();
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});
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it('should auto-commit actions after hot reload fixes error', () => {
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let spy = spyOn(console, 'error');
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let storeWithBug = createStore(counterWithBug, instrument(undefined, { maxAge: 3 }));
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let liftedStoreWithBug = storeWithBug.liftedStore;
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'INCREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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expect(liftedStoreWithBug.getState().stagedActionIds.length).toBe(7);
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// Auto-commit 2 actions by "fixing" reducer bug, but introducing another.
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storeWithBug.replaceReducer(counterWithAnotherBug);
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expect(liftedStoreWithBug.getState().stagedActionIds.length).toBe(5);
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// Auto-commit 2 more actions by "fixing" other reducer bug.
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storeWithBug.replaceReducer(counter);
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expect(liftedStoreWithBug.getState().stagedActionIds.length).toBe(3);
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spy.restore();
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});
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it('should update currentStateIndex when auto-committing', () => {
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let liftedStoreState;
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let currentComputedState;
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configuredStore.dispatch({ type: 'INCREMENT' });
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configuredStore.dispatch({ type: 'INCREMENT' });
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liftedStoreState = configuredLiftedStore.getState();
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expect(liftedStoreState.currentStateIndex).toBe(2);
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// currentStateIndex should stay at 2 as actions are committed.
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configuredStore.dispatch({ type: 'INCREMENT' });
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liftedStoreState = configuredLiftedStore.getState();
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currentComputedState = liftedStoreState.computedStates[liftedStoreState.currentStateIndex];
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expect(liftedStoreState.currentStateIndex).toBe(2);
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expect(currentComputedState.state).toBe(3);
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});
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it('should continue to increment currentStateIndex while error blocks commit', () => {
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let spy = spyOn(console, 'error');
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let storeWithBug = createStore(counterWithBug, instrument(undefined, { maxAge: 3 }));
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let liftedStoreWithBug = storeWithBug.liftedStore;
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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let liftedStoreState = liftedStoreWithBug.getState();
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let currentComputedState = liftedStoreState.computedStates[liftedStoreState.currentStateIndex];
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expect(liftedStoreState.currentStateIndex).toBe(4);
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expect(currentComputedState.state).toBe(0);
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expect(currentComputedState.error).toExist();
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spy.restore();
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});
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it('should adjust currentStateIndex correctly when multiple actions are committed', () => {
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let spy = spyOn(console, 'error');
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let storeWithBug = createStore(counterWithBug, instrument(undefined, { maxAge: 3 }));
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let liftedStoreWithBug = storeWithBug.liftedStore;
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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// Auto-commit 2 actions by "fixing" reducer bug.
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storeWithBug.replaceReducer(counter);
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let liftedStoreState = liftedStoreWithBug.getState();
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let currentComputedState = liftedStoreState.computedStates[liftedStoreState.currentStateIndex];
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expect(liftedStoreState.currentStateIndex).toBe(2);
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expect(currentComputedState.state).toBe(-4);
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spy.restore();
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});
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it('should not allow currentStateIndex to drop below 0', () => {
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let spy = spyOn(console, 'error');
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let storeWithBug = createStore(counterWithBug, instrument(undefined, { maxAge: 3 }));
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let liftedStoreWithBug = storeWithBug.liftedStore;
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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storeWithBug.dispatch({ type: 'DECREMENT' });
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liftedStoreWithBug.dispatch(ActionCreators.jumpToState(1));
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// Auto-commit 2 actions by "fixing" reducer bug.
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storeWithBug.replaceReducer(counter);
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let liftedStoreState = liftedStoreWithBug.getState();
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let currentComputedState = liftedStoreState.computedStates[liftedStoreState.currentStateIndex];
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expect(liftedStoreState.currentStateIndex).toBe(0);
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expect(currentComputedState.state).toBe(-2);
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|
|
|
spy.restore();
|
|
});
|
|
});
|
|
|
|
describe('Import State', () => {
|
|
let monitoredStore;
|
|
let monitoredLiftedStore;
|
|
let exportedState;
|
|
|
|
beforeEach(() => {
|
|
monitoredStore = createStore(counter, instrument());
|
|
monitoredLiftedStore = monitoredStore.liftedStore;
|
|
// Set up state to export
|
|
monitoredStore.dispatch({ type: 'INCREMENT' });
|
|
monitoredStore.dispatch({ type: 'INCREMENT' });
|
|
monitoredStore.dispatch({ type: 'INCREMENT' });
|
|
|
|
exportedState = monitoredLiftedStore.getState();
|
|
});
|
|
|
|
it('should replay all the steps when a state is imported', () => {
|
|
let importMonitoredStore = createStore(counter, instrument());
|
|
let importMonitoredLiftedStore = importMonitoredStore.liftedStore;
|
|
|
|
importMonitoredLiftedStore.dispatch(ActionCreators.importState(exportedState));
|
|
expect(importMonitoredLiftedStore.getState()).toEqual(exportedState);
|
|
});
|
|
|
|
it('should replace the existing action log with the one imported', () => {
|
|
let importMonitoredStore = createStore(counter, instrument());
|
|
let importMonitoredLiftedStore = importMonitoredStore.liftedStore;
|
|
|
|
importMonitoredStore.dispatch({ type: 'DECREMENT' });
|
|
importMonitoredStore.dispatch({ type: 'DECREMENT' });
|
|
|
|
importMonitoredLiftedStore.dispatch(ActionCreators.importState(exportedState));
|
|
expect(importMonitoredLiftedStore.getState()).toEqual(exportedState);
|
|
});
|
|
});
|
|
|
|
it('throws if reducer is not a function', () => {
|
|
expect(() =>
|
|
createStore(undefined, instrument())
|
|
).toThrow('Expected the reducer to be a function.');
|
|
});
|
|
|
|
it('warns if the reducer is not a function but has a default field that is', () => {
|
|
expect(() =>
|
|
createStore(({ 'default': () => {} }), instrument())
|
|
).toThrow(
|
|
'Expected the reducer to be a function. ' +
|
|
'Instead got an object with a "default" field. ' +
|
|
'Did you pass a module instead of the default export? ' +
|
|
'Try passing require(...).default instead.'
|
|
);
|
|
});
|
|
|
|
it('throws if there are more than one instrument enhancer included', () => {
|
|
expect(() => {
|
|
createStore(counter, compose(instrument(), instrument()));
|
|
}).toThrow(
|
|
'DevTools instrumentation should not be applied more than once. ' +
|
|
'Check your store configuration.'
|
|
);
|
|
});
|
|
});
|