updux/dist/middleware.test.js
Yanick Champoux 057226dfd1 compile
2019-11-06 19:07:06 -05:00

112 lines
3.3 KiB
JavaScript

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const _1 = __importDefault(require("."));
test('simple effect', () => {
const tracer = jest.fn();
const store = new _1.default({
effects: {
foo: (api) => (next) => (action) => {
tracer();
next(action);
},
},
}).createStore();
expect(tracer).not.toHaveBeenCalled();
store.dispatch({ type: 'bar' });
expect(tracer).not.toHaveBeenCalled();
store.dispatch.foo();
expect(tracer).toHaveBeenCalled();
});
test('effect and sub-effect', () => {
const tracer = jest.fn();
const tracerEffect = (signature) => (api) => (next) => (action) => {
tracer(signature);
next(action);
};
const store = new _1.default({
effects: {
foo: tracerEffect('root'),
},
subduxes: {
zzz: {
effects: {
foo: tracerEffect('child'),
},
},
},
}).createStore();
expect(tracer).not.toHaveBeenCalled();
store.dispatch({ type: 'bar' });
expect(tracer).not.toHaveBeenCalled();
store.dispatch.foo();
expect(tracer).toHaveBeenNthCalledWith(1, 'root');
expect(tracer).toHaveBeenNthCalledWith(2, 'child');
});
test('"*" effect', () => {
const tracer = jest.fn();
const store = new _1.default({
effects: {
'*': api => next => action => {
tracer();
next(action);
},
},
}).createStore();
expect(tracer).not.toHaveBeenCalled();
store.dispatch({ type: 'bar' });
expect(tracer).toHaveBeenCalled();
});
test('async effect', async () => {
function timeout(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
const tracer = jest.fn();
const store = new _1.default({
effects: {
foo: api => next => async (action) => {
next(action);
await timeout(1000);
tracer();
},
},
}).createStore();
expect(tracer).not.toHaveBeenCalled();
store.dispatch.foo();
expect(tracer).not.toHaveBeenCalled();
await timeout(1000);
expect(tracer).toHaveBeenCalled();
});
test('getState is local', () => {
let childState;
let rootState;
let rootFromChild;
const child = new _1.default({
initial: { alpha: 12 },
effects: {
doIt: ({ getState, getRootState }) => next => action => {
childState = getState();
rootFromChild = getRootState();
next(action);
},
},
});
const root = new _1.default({
initial: { beta: 24 },
subduxes: { child },
effects: {
doIt: ({ getState }) => next => action => {
rootState = getState();
next(action);
},
},
});
const store = root.createStore();
store.dispatch.doIt();
expect(rootState).toEqual({ beta: 24, child: { alpha: 12 } });
expect(rootFromChild).toEqual({ beta: 24, child: { alpha: 12 } });
expect(childState).toEqual({ alpha: 12 });
});
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