redux-devtools/packages/redux-devtools-instrument/test/instrument.spec.js
2018-12-02 23:49:12 +02:00

954 lines
35 KiB
JavaScript

import expect, { spyOn } from 'expect';
import { createStore, compose } from 'redux';
import instrument, { ActionCreators } from '../src/instrument';
import { Observable } from 'rxjs';
import _ from 'lodash';
import 'rxjs/add/observable/from';
function counter(state = 0, action) {
switch (action.type) {
case 'INCREMENT': return state + 1;
case 'DECREMENT': return state - 1;
default: return state;
}
}
function counterWithBug(state = 0, action) {
switch (action.type) {
case 'INCREMENT': return state + 1;
case 'DECREMENT': return mistake - 1; // eslint-disable-line no-undef
case 'SET_UNDEFINED': return undefined;
default: return state;
}
}
function counterWithAnotherBug(state = 0, action) {
switch (action.type) {
case 'INCREMENT': return mistake + 1; // eslint-disable-line no-undef
case 'DECREMENT': return state - 1;
case 'SET_UNDEFINED': return undefined;
default: return state;
}
}
function doubleCounter(state = 0, action) {
switch (action.type) {
case 'INCREMENT': return state + 2;
case 'DECREMENT': return state - 2;
default: return state;
}
}
function counterWithMultiply(state = 0, action) {
switch (action.type) {
case 'INCREMENT': return state + 1;
case 'DECREMENT': return state - 1;
case 'MULTIPLY': return state * 2;
default: return state;
}
}
describe('instrument', () => {
let store;
let liftedStore;
beforeEach(() => {
store = createStore(counter, instrument());
liftedStore = store.liftedStore;
});
it('should perform actions', () => {
expect(store.getState()).toBe(0);
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(1);
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(2);
});
it('should provide observable', () => {
let lastValue;
let calls = 0;
Observable.from(store)
.subscribe(state => {
lastValue = state;
calls++;
});
expect(lastValue).toBe(0);
store.dispatch({ type: 'INCREMENT' });
expect(lastValue).toBe(1);
});
it('should rollback state to the last committed state', () => {
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(2);
liftedStore.dispatch(ActionCreators.commit());
expect(store.getState()).toBe(2);
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(4);
liftedStore.dispatch(ActionCreators.rollback());
expect(store.getState()).toBe(2);
store.dispatch({ type: 'DECREMENT' });
expect(store.getState()).toBe(1);
liftedStore.dispatch(ActionCreators.rollback());
expect(store.getState()).toBe(2);
});
it('should reset to initial state', () => {
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(1);
liftedStore.dispatch(ActionCreators.commit());
expect(store.getState()).toBe(1);
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(2);
liftedStore.dispatch(ActionCreators.rollback());
expect(store.getState()).toBe(1);
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(2);
liftedStore.dispatch(ActionCreators.reset());
expect(store.getState()).toBe(0);
});
it('should toggle an action', () => {
// actionId 0 = @@INIT
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(1);
liftedStore.dispatch(ActionCreators.toggleAction(2));
expect(store.getState()).toBe(2);
liftedStore.dispatch(ActionCreators.toggleAction(2));
expect(store.getState()).toBe(1);
});
it('should set multiple action skip', () => {
// actionId 0 = @@INIT
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(3);
liftedStore.dispatch(ActionCreators.setActionsActive(1, 3, false));
expect(store.getState()).toBe(1);
liftedStore.dispatch(ActionCreators.setActionsActive(0, 2, true));
expect(store.getState()).toBe(2);
liftedStore.dispatch(ActionCreators.setActionsActive(0, 1, true));
expect(store.getState()).toBe(2);
});
it('should sweep disabled actions', () => {
// actionId 0 = @@INIT
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(2);
expect(liftedStore.getState().stagedActionIds).toEqual([0, 1, 2, 3, 4]);
expect(liftedStore.getState().skippedActionIds).toEqual([]);
liftedStore.dispatch(ActionCreators.toggleAction(2));
expect(store.getState()).toBe(3);
expect(liftedStore.getState().stagedActionIds).toEqual([0, 1, 2, 3, 4]);
expect(liftedStore.getState().skippedActionIds).toEqual([2]);
liftedStore.dispatch(ActionCreators.sweep());
expect(store.getState()).toBe(3);
expect(liftedStore.getState().stagedActionIds).toEqual([0, 1, 3, 4]);
expect(liftedStore.getState().skippedActionIds).toEqual([]);
});
it('should jump to state', () => {
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(1);
liftedStore.dispatch(ActionCreators.jumpToState(0));
expect(store.getState()).toBe(0);
liftedStore.dispatch(ActionCreators.jumpToState(1));
expect(store.getState()).toBe(1);
liftedStore.dispatch(ActionCreators.jumpToState(2));
expect(store.getState()).toBe(0);
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(0);
liftedStore.dispatch(ActionCreators.jumpToState(4));
expect(store.getState()).toBe(2);
});
it('should jump to action', () => {
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(1);
liftedStore.dispatch(ActionCreators.jumpToAction(0));
expect(store.getState()).toBe(0);
liftedStore.dispatch(ActionCreators.jumpToAction(1));
expect(store.getState()).toBe(1);
liftedStore.dispatch(ActionCreators.jumpToAction(10));
expect(store.getState()).toBe(1);
});
it('should reorder actions', () => {
store = createStore(counterWithMultiply, instrument());
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'MULTIPLY' });
expect(store.liftedStore.getState().stagedActionIds).toEqual([0, 1, 2, 3, 4]);
expect(store.getState()).toBe(2);
store.liftedStore.dispatch(ActionCreators.reorderAction(4, 1));
expect(store.liftedStore.getState().stagedActionIds).toEqual([0, 4, 1, 2, 3]);
expect(store.getState()).toBe(1);
store.liftedStore.dispatch(ActionCreators.reorderAction(4, 1));
expect(store.liftedStore.getState().stagedActionIds).toEqual([0, 4, 1, 2, 3]);
expect(store.getState()).toBe(1);
store.liftedStore.dispatch(ActionCreators.reorderAction(4, 2));
expect(store.liftedStore.getState().stagedActionIds).toEqual([0, 1, 4, 2, 3]);
expect(store.getState()).toBe(2);
store.liftedStore.dispatch(ActionCreators.reorderAction(1, 10));
expect(store.liftedStore.getState().stagedActionIds).toEqual([0, 4, 2, 3, 1]);
expect(store.getState()).toBe(1);
store.liftedStore.dispatch(ActionCreators.reorderAction(10, 1));
expect(store.liftedStore.getState().stagedActionIds).toEqual([0, 4, 2, 3, 1]);
expect(store.getState()).toBe(1);
store.liftedStore.dispatch(ActionCreators.reorderAction(1, -2));
expect(store.liftedStore.getState().stagedActionIds).toEqual([0, 1, 4, 2, 3]);
expect(store.getState()).toBe(2);
store.liftedStore.dispatch(ActionCreators.reorderAction(0, 1));
expect(store.liftedStore.getState().stagedActionIds).toEqual([0, 1, 4, 2, 3]);
expect(store.getState()).toBe(2);
});
it('should replace the reducer', () => {
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(1);
store.replaceReducer(doubleCounter);
expect(store.getState()).toBe(2);
});
it('should replace the reducer without recomputing actions', () => {
store = createStore(counter, instrument(undefined, { shouldHotReload: false }));
expect(store.getState()).toBe(0);
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(1);
store.replaceReducer(doubleCounter);
expect(store.getState()).toBe(1);
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(3);
store.replaceReducer(() => ({ test: true }));
expect(store.getState()).toEqual({ test: true });
});
it('should catch and record errors', () => {
let spy = spyOn(console, 'error');
let storeWithBug = createStore(
counterWithBug,
instrument(undefined, { shouldCatchErrors: true })
);
storeWithBug.dispatch({ type: 'INCREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'INCREMENT' });
let { computedStates } = storeWithBug.liftedStore.getState();
expect(computedStates[2].error).toMatch(
/ReferenceError/
);
expect(computedStates[3].error).toMatch(
/Interrupted by an error up the chain/
);
expect(spy.calls[0].arguments[0].toString()).toMatch(
/ReferenceError/
);
spy.restore();
});
it('should catch invalid action type', () => {
expect(() => {
store.dispatch({ type: undefined });
}).toThrow(
'Actions may not have an undefined "type" property. ' +
'Have you misspelled a constant?'
);
});
it('should catch invalid action type', () => {
function ActionClass() {
this.type = 'test';
}
expect(() => {
store.dispatch(new ActionClass());
}).toThrow(
'Actions must be plain objects. ' +
'Use custom middleware for async actions.'
);
});
it('should return the last non-undefined state from getState', () => {
let storeWithBug = createStore(counterWithBug, instrument());
storeWithBug.dispatch({ type: 'INCREMENT' });
storeWithBug.dispatch({ type: 'INCREMENT' });
expect(storeWithBug.getState()).toBe(2);
storeWithBug.dispatch({ type: 'SET_UNDEFINED' });
expect(storeWithBug.getState()).toBe(2);
});
it('should not recompute states on every action', () => {
let reducerCalls = 0;
let monitoredStore = createStore(() => reducerCalls++, instrument());
expect(reducerCalls).toBe(1);
monitoredStore.dispatch({ type: 'INCREMENT' });
monitoredStore.dispatch({ type: 'INCREMENT' });
monitoredStore.dispatch({ type: 'INCREMENT' });
expect(reducerCalls).toBe(4);
});
it('should not recompute old states when toggling an action', () => {
let reducerCalls = 0;
let monitoredStore = createStore(() => reducerCalls++, instrument());
let monitoredLiftedStore = monitoredStore.liftedStore;
expect(reducerCalls).toBe(1);
// actionId 0 = @@INIT
monitoredStore.dispatch({ type: 'INCREMENT' });
monitoredStore.dispatch({ type: 'INCREMENT' });
monitoredStore.dispatch({ type: 'INCREMENT' });
expect(reducerCalls).toBe(4);
monitoredLiftedStore.dispatch(ActionCreators.toggleAction(3));
expect(reducerCalls).toBe(4);
monitoredLiftedStore.dispatch(ActionCreators.toggleAction(3));
expect(reducerCalls).toBe(5);
monitoredLiftedStore.dispatch(ActionCreators.toggleAction(2));
expect(reducerCalls).toBe(6);
monitoredLiftedStore.dispatch(ActionCreators.toggleAction(2));
expect(reducerCalls).toBe(8);
monitoredLiftedStore.dispatch(ActionCreators.toggleAction(1));
expect(reducerCalls).toBe(10);
monitoredLiftedStore.dispatch(ActionCreators.toggleAction(2));
expect(reducerCalls).toBe(11);
monitoredLiftedStore.dispatch(ActionCreators.toggleAction(3));
expect(reducerCalls).toBe(11);
monitoredLiftedStore.dispatch(ActionCreators.toggleAction(1));
expect(reducerCalls).toBe(12);
monitoredLiftedStore.dispatch(ActionCreators.toggleAction(3));
expect(reducerCalls).toBe(13);
monitoredLiftedStore.dispatch(ActionCreators.toggleAction(2));
expect(reducerCalls).toBe(15);
});
it('should not recompute states when jumping to state', () => {
let reducerCalls = 0;
let monitoredStore = createStore(() => reducerCalls++, instrument());
let monitoredLiftedStore = monitoredStore.liftedStore;
expect(reducerCalls).toBe(1);
monitoredStore.dispatch({ type: 'INCREMENT' });
monitoredStore.dispatch({ type: 'INCREMENT' });
monitoredStore.dispatch({ type: 'INCREMENT' });
expect(reducerCalls).toBe(4);
let savedComputedStates = monitoredLiftedStore.getState().computedStates;
monitoredLiftedStore.dispatch(ActionCreators.jumpToState(0));
expect(reducerCalls).toBe(4);
monitoredLiftedStore.dispatch(ActionCreators.jumpToState(1));
expect(reducerCalls).toBe(4);
monitoredLiftedStore.dispatch(ActionCreators.jumpToState(3));
expect(reducerCalls).toBe(4);
expect(monitoredLiftedStore.getState().computedStates).toBe(savedComputedStates);
});
it('should not recompute states on monitor actions', () => {
let reducerCalls = 0;
let monitoredStore = createStore(() => reducerCalls++, instrument());
let monitoredLiftedStore = monitoredStore.liftedStore;
expect(reducerCalls).toBe(1);
monitoredStore.dispatch({ type: 'INCREMENT' });
monitoredStore.dispatch({ type: 'INCREMENT' });
monitoredStore.dispatch({ type: 'INCREMENT' });
expect(reducerCalls).toBe(4);
let savedComputedStates = monitoredLiftedStore.getState().computedStates;
monitoredLiftedStore.dispatch({ type: 'lol' });
expect(reducerCalls).toBe(4);
monitoredLiftedStore.dispatch({ type: 'wat' });
expect(reducerCalls).toBe(4);
expect(monitoredLiftedStore.getState().computedStates).toBe(savedComputedStates);
});
describe('maxAge option', () => {
let configuredStore;
let configuredLiftedStore;
beforeEach(() => {
configuredStore = createStore(counter, instrument(undefined, { maxAge: 3 }));
configuredLiftedStore = configuredStore.liftedStore;
});
it('should auto-commit earliest non-@@INIT action when maxAge is reached', () => {
configuredStore.dispatch({ type: 'INCREMENT' });
configuredStore.dispatch({ type: 'INCREMENT' });
let liftedStoreState = configuredLiftedStore.getState();
expect(configuredStore.getState()).toBe(2);
expect(Object.keys(liftedStoreState.actionsById).length).toBe(3);
expect(liftedStoreState.committedState).toBe(undefined);
expect(liftedStoreState.stagedActionIds).toInclude(1);
// Trigger auto-commit.
configuredStore.dispatch({ type: 'INCREMENT' });
liftedStoreState = configuredLiftedStore.getState();
expect(configuredStore.getState()).toBe(3);
expect(Object.keys(liftedStoreState.actionsById).length).toBe(3);
expect(liftedStoreState.stagedActionIds).toExclude(1);
expect(liftedStoreState.computedStates[0].state).toBe(1);
expect(liftedStoreState.committedState).toBe(1);
expect(liftedStoreState.currentStateIndex).toBe(2);
});
it('should remove skipped actions once committed', () => {
configuredStore.dispatch({ type: 'INCREMENT' });
configuredLiftedStore.dispatch(ActionCreators.toggleAction(1));
configuredStore.dispatch({ type: 'INCREMENT' });
expect(configuredLiftedStore.getState().skippedActionIds).toInclude(1);
configuredStore.dispatch({ type: 'INCREMENT' });
expect(configuredLiftedStore.getState().skippedActionIds).toExclude(1);
});
it('should not auto-commit errors', () => {
let spy = spyOn(console, 'error');
let storeWithBug = createStore(
counterWithBug,
instrument(undefined, { maxAge: 3, shouldCatchErrors: true })
);
let liftedStoreWithBug = storeWithBug.liftedStore;
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'INCREMENT' });
expect(liftedStoreWithBug.getState().stagedActionIds.length).toBe(3);
storeWithBug.dispatch({ type: 'INCREMENT' });
expect(liftedStoreWithBug.getState().stagedActionIds.length).toBe(4);
spy.restore();
});
it('should auto-commit actions after hot reload fixes error', () => {
let spy = spyOn(console, 'error');
let storeWithBug = createStore(
counterWithBug,
instrument(undefined, { maxAge: 3, shouldCatchErrors: true })
);
let liftedStoreWithBug = storeWithBug.liftedStore;
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'INCREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
expect(liftedStoreWithBug.getState().stagedActionIds.length).toBe(7);
// Auto-commit 2 actions by "fixing" reducer bug, but introducing another.
storeWithBug.replaceReducer(counterWithAnotherBug);
expect(liftedStoreWithBug.getState().stagedActionIds.length).toBe(5);
// Auto-commit 2 more actions by "fixing" other reducer bug.
storeWithBug.replaceReducer(counter);
expect(liftedStoreWithBug.getState().stagedActionIds.length).toBe(3);
spy.restore();
});
it('should update currentStateIndex when auto-committing', () => {
let liftedStoreState;
let currentComputedState;
configuredStore.dispatch({ type: 'INCREMENT' });
configuredStore.dispatch({ type: 'INCREMENT' });
liftedStoreState = configuredLiftedStore.getState();
expect(liftedStoreState.currentStateIndex).toBe(2);
// currentStateIndex should stay at 2 as actions are committed.
configuredStore.dispatch({ type: 'INCREMENT' });
liftedStoreState = configuredLiftedStore.getState();
currentComputedState = liftedStoreState.computedStates[liftedStoreState.currentStateIndex];
expect(liftedStoreState.currentStateIndex).toBe(2);
expect(currentComputedState.state).toBe(3);
});
it('should continue to increment currentStateIndex while error blocks commit', () => {
let spy = spyOn(console, 'error');
let storeWithBug = createStore(
counterWithBug,
instrument(undefined, { maxAge: 3, shouldCatchErrors: true })
);
let liftedStoreWithBug = storeWithBug.liftedStore;
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
let liftedStoreState = liftedStoreWithBug.getState();
let currentComputedState = liftedStoreState.computedStates[liftedStoreState.currentStateIndex];
expect(liftedStoreState.currentStateIndex).toBe(4);
expect(currentComputedState.state).toBe(0);
expect(currentComputedState.error).toExist();
spy.restore();
});
it('should adjust currentStateIndex correctly when multiple actions are committed', () => {
let spy = spyOn(console, 'error');
let storeWithBug = createStore(
counterWithBug,
instrument(undefined, { maxAge: 3, shouldCatchErrors: true })
);
let liftedStoreWithBug = storeWithBug.liftedStore;
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
// Auto-commit 2 actions by "fixing" reducer bug.
storeWithBug.replaceReducer(counter);
let liftedStoreState = liftedStoreWithBug.getState();
let currentComputedState = liftedStoreState.computedStates[liftedStoreState.currentStateIndex];
expect(liftedStoreState.currentStateIndex).toBe(2);
expect(currentComputedState.state).toBe(-4);
spy.restore();
});
it('should not allow currentStateIndex to drop below 0', () => {
let spy = spyOn(console, 'error');
let storeWithBug = createStore(
counterWithBug,
instrument(undefined, { maxAge: 3, shouldCatchErrors: true })
);
let liftedStoreWithBug = storeWithBug.liftedStore;
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
storeWithBug.dispatch({ type: 'DECREMENT' });
liftedStoreWithBug.dispatch(ActionCreators.jumpToState(1));
// Auto-commit 2 actions by "fixing" reducer bug.
storeWithBug.replaceReducer(counter);
let liftedStoreState = liftedStoreWithBug.getState();
let currentComputedState = liftedStoreState.computedStates[liftedStoreState.currentStateIndex];
expect(liftedStoreState.currentStateIndex).toBe(0);
expect(currentComputedState.state).toBe(-2);
spy.restore();
});
it('should use dynamic maxAge', () => {
let max = 3;
const getMaxAge = expect.createSpy().andCall(() => max);
store = createStore(counter, instrument(undefined, { maxAge: getMaxAge }));
expect(getMaxAge.calls.length).toEqual(1);
store.dispatch({ type: 'INCREMENT' });
expect(getMaxAge.calls.length).toEqual(2);
store.dispatch({ type: 'INCREMENT' });
expect(getMaxAge.calls.length).toEqual(3);
let liftedStoreState = store.liftedStore.getState();
expect(getMaxAge.calls[0].arguments[0].type).toInclude('INIT');
expect(getMaxAge.calls[0].arguments[1]).toBe(undefined);
expect(getMaxAge.calls[1].arguments[0].type).toBe('PERFORM_ACTION');
expect(getMaxAge.calls[1].arguments[1].nextActionId).toBe(1);
expect(getMaxAge.calls[1].arguments[1].stagedActionIds).toEqual([0]);
expect(getMaxAge.calls[2].arguments[1].nextActionId).toBe(2);
expect(getMaxAge.calls[2].arguments[1].stagedActionIds).toEqual([0, 1]);
expect(store.getState()).toBe(2);
expect(Object.keys(liftedStoreState.actionsById).length).toBe(3);
expect(liftedStoreState.committedState).toBe(undefined);
expect(liftedStoreState.stagedActionIds).toInclude(1);
// Trigger auto-commit.
store.dispatch({ type: 'INCREMENT' });
liftedStoreState = store.liftedStore.getState();
expect(store.getState()).toBe(3);
expect(Object.keys(liftedStoreState.actionsById).length).toBe(3);
expect(liftedStoreState.stagedActionIds).toExclude(1);
expect(liftedStoreState.computedStates[0].state).toBe(1);
expect(liftedStoreState.committedState).toBe(1);
expect(liftedStoreState.currentStateIndex).toBe(2);
max = 4;
store.dispatch({ type: 'INCREMENT' });
liftedStoreState = store.liftedStore.getState();
expect(store.getState()).toBe(4);
expect(Object.keys(liftedStoreState.actionsById).length).toBe(4);
expect(liftedStoreState.stagedActionIds).toExclude(1);
expect(liftedStoreState.computedStates[0].state).toBe(1);
expect(liftedStoreState.committedState).toBe(1);
expect(liftedStoreState.currentStateIndex).toBe(3);
max = 3;
store.dispatch({ type: 'INCREMENT' });
liftedStoreState = store.liftedStore.getState();
expect(store.getState()).toBe(5);
expect(Object.keys(liftedStoreState.actionsById).length).toBe(3);
expect(liftedStoreState.stagedActionIds).toExclude(1);
expect(liftedStoreState.computedStates[0].state).toBe(3);
expect(liftedStoreState.committedState).toBe(3);
expect(liftedStoreState.currentStateIndex).toBe(2);
store.dispatch({ type: 'INCREMENT' });
liftedStoreState = store.liftedStore.getState();
expect(store.getState()).toBe(6);
expect(Object.keys(liftedStoreState.actionsById).length).toBe(3);
expect(liftedStoreState.stagedActionIds).toExclude(1);
expect(liftedStoreState.computedStates[0].state).toBe(4);
expect(liftedStoreState.committedState).toBe(4);
expect(liftedStoreState.currentStateIndex).toBe(2);
});
it('should throw error when maxAge < 2', () => {
expect(() => {
createStore(counter, instrument(undefined, { maxAge: 1 }));
}).toThrow(/may not be less than 2/);
});
});
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('should allow for state to be imported without replaying actions', () => {
let importMonitoredStore = createStore(counter, instrument());
let importMonitoredLiftedStore = importMonitoredStore.liftedStore;
let noComputedExportedState = Object.assign({}, exportedState);
delete noComputedExportedState.computedStates;
importMonitoredLiftedStore.dispatch(ActionCreators.importState(noComputedExportedState, true));
let expectedImportedState = Object.assign({}, noComputedExportedState, {
computedStates: undefined
});
expect(importMonitoredLiftedStore.getState()).toEqual(expectedImportedState);
});
it('should include callstack', () => {
let importMonitoredStore = createStore(counter, instrument(undefined, { shouldIncludeCallstack: true }));
let importMonitoredLiftedStore = importMonitoredStore.liftedStore;
importMonitoredStore.dispatch({ type: 'DECREMENT' });
importMonitoredStore.dispatch({ type: 'DECREMENT' });
const oldState = importMonitoredLiftedStore.getState();
expect(oldState.actionsById[0].stack).toBe(undefined);
expect(oldState.actionsById[1].stack).toBeA('string');
importMonitoredLiftedStore.dispatch(ActionCreators.importState(oldState));
expect(importMonitoredLiftedStore.getState()).toEqual(oldState);
expect(importMonitoredLiftedStore.getState().actionsById[0].stack).toBe(undefined);
expect(importMonitoredLiftedStore.getState().actionsById[1]).toEqual(oldState.actionsById[1]);
});
});
function filterStackAndTimestamps(state) {
state.actionsById = _.mapValues(state.actionsById, (action) => {
delete action.timestamp;
delete action.stack;
return action;
});
return state;
}
describe('Import Actions', () => {
let monitoredStore;
let monitoredLiftedStore;
let exportedState;
let savedActions = [
{ type: 'INCREMENT' },
{ type: 'INCREMENT' },
{ type: 'INCREMENT' }
];
beforeEach(() => {
monitoredStore = createStore(counter, instrument());
monitoredLiftedStore = monitoredStore.liftedStore;
// Pass actions through component
savedActions.forEach(action => monitoredStore.dispatch(action));
// get the final state
exportedState = filterStackAndTimestamps(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(savedActions));
expect(filterStackAndTimestamps(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(savedActions));
expect(filterStackAndTimestamps(importMonitoredLiftedStore.getState())).toEqual(exportedState);
});
it('should include callstack', () => {
let importMonitoredStore = createStore(counter, instrument(undefined, { shouldIncludeCallstack: true }));
let importMonitoredLiftedStore = importMonitoredStore.liftedStore;
importMonitoredStore.dispatch({ type: 'DECREMENT' });
importMonitoredStore.dispatch({ type: 'DECREMENT' });
importMonitoredLiftedStore.dispatch(ActionCreators.importState(savedActions));
expect(importMonitoredLiftedStore.getState().actionsById[0].stack).toBe(undefined);
expect(importMonitoredLiftedStore.getState().actionsById[1].stack).toBeA('string');
expect(filterStackAndTimestamps(importMonitoredLiftedStore.getState())).toEqual(exportedState);
});
});
describe('Lock Changes', () => {
it('should lock', () => {
store.dispatch({ type: 'INCREMENT' });
store.liftedStore.dispatch({ type: 'LOCK_CHANGES', status: true });
expect(store.liftedStore.getState().isLocked).toBe(true);
expect(store.liftedStore.getState().nextActionId).toBe(2);
expect(store.getState()).toBe(1);
store.dispatch({ type: 'INCREMENT' });
expect(store.liftedStore.getState().nextActionId).toBe(2);
expect(store.getState()).toBe(1);
liftedStore.dispatch(ActionCreators.toggleAction(1));
expect(store.getState()).toBe(0);
liftedStore.dispatch(ActionCreators.toggleAction(1));
expect(store.getState()).toBe(1);
store.liftedStore.dispatch({ type: 'LOCK_CHANGES', status: false });
expect(store.liftedStore.getState().isLocked).toBe(false);
expect(store.liftedStore.getState().nextActionId).toBe(2);
store.dispatch({ type: 'INCREMENT' });
expect(store.liftedStore.getState().nextActionId).toBe(3);
expect(store.getState()).toBe(2);
});
it('should start locked', () => {
store = createStore(counter, instrument(undefined, { shouldStartLocked: true }));
store.dispatch({ type: 'INCREMENT' });
expect(store.liftedStore.getState().isLocked).toBe(true);
expect(store.liftedStore.getState().nextActionId).toBe(1);
expect(store.getState()).toBe(0);
const savedActions = [{ type: 'INCREMENT' }, { type: 'INCREMENT' }];
store.liftedStore.dispatch(ActionCreators.importState(savedActions));
expect(store.liftedStore.getState().nextActionId).toBe(3);
expect(store.getState()).toBe(2);
store.liftedStore.dispatch({ type: 'LOCK_CHANGES', status: false });
expect(store.liftedStore.getState().isLocked).toBe(false);
store.dispatch({ type: 'INCREMENT' });
expect(store.liftedStore.getState().nextActionId).toBe(4);
expect(store.getState()).toBe(3);
});
});
describe('Pause recording', () => {
it('should pause', () => {
expect(store.liftedStore.getState().isPaused).toBe(false);
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.liftedStore.getState().nextActionId).toBe(3);
expect(store.getState()).toBe(2);
store.liftedStore.dispatch(ActionCreators.pauseRecording(true));
expect(store.liftedStore.getState().isPaused).toBe(true);
expect(store.liftedStore.getState().nextActionId).toBe(1);
expect(store.liftedStore.getState().actionsById[0].action).toEqual({ type: '@@INIT' });
expect(store.getState()).toBe(2);
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.liftedStore.getState().nextActionId).toBe(1);
expect(store.liftedStore.getState().actionsById[0].action).toEqual({ type: '@@INIT' });
expect(store.getState()).toBe(4);
store.liftedStore.dispatch(ActionCreators.pauseRecording(false));
expect(store.liftedStore.getState().isPaused).toBe(false);
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.liftedStore.getState().nextActionId).toBe(3);
expect(store.liftedStore.getState().actionsById[2].action).toEqual({ type: 'INCREMENT' });
expect(store.getState()).toBe(6);
});
it('should maintain the history while paused', () => {
store = createStore(counter, instrument(undefined, { pauseActionType: '@@PAUSED' }));
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(2);
expect(store.liftedStore.getState().nextActionId).toBe(3);
expect(store.liftedStore.getState().isPaused).toBe(false);
store.liftedStore.dispatch(ActionCreators.pauseRecording(true));
expect(store.liftedStore.getState().isPaused).toBe(true);
expect(store.liftedStore.getState().nextActionId).toBe(4);
expect(store.getState()).toBe(2);
store.dispatch({ type: 'INCREMENT' });
expect(store.liftedStore.getState().nextActionId).toBe(4);
store.dispatch({ type: 'INCREMENT' });
expect(store.liftedStore.getState().nextActionId).toBe(4);
expect(store.getState()).toBe(4);
store.liftedStore.dispatch(ActionCreators.pauseRecording(false));
expect(store.liftedStore.getState().isPaused).toBe(false);
expect(store.liftedStore.getState().nextActionId).toBe(1);
expect(store.getState()).toBe(4);
store.dispatch({ type: 'INCREMENT' });
expect(store.liftedStore.getState().nextActionId).toBe(2);
expect(store.getState()).toBe(5);
store.liftedStore.dispatch(ActionCreators.commit());
store.liftedStore.dispatch(ActionCreators.pauseRecording(true));
store.dispatch({ type: 'INCREMENT' });
expect(store.liftedStore.getState().nextActionId).toBe(1);
expect(store.getState()).toBe(6);
});
});
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.'
);
});
});