add tests for createDevTools.js

This commit is contained in:
Lee Bannard 2015-09-23 20:43:55 +01:00
parent aa5ee9b6c6
commit 49b7bd1282
3 changed files with 101 additions and 12 deletions

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@ -40,8 +40,14 @@
"eslint-plugin-react": "^2.3.0",
"expect": "^1.6.0",
"isparta": "^3.0.3",
"jsdom": "^6.5.1",
"mocha": "^2.2.5",
"rimraf": "^2.3.4"
"mocha-jsdom": "^1.0.0",
"react": "^0.14.0-rc1",
"react-addons-test-utils": "^0.14.0-rc1",
"react-dom": "^0.14.0-rc1",
"rimraf": "^2.3.4",
"webpack": "^1.11.0"
},
"peerDependencies": {
"redux": "^2.0.0 || ^3.0.0"

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@ -0,0 +1,83 @@
import expect from 'expect';
import jsdom from 'mocha-jsdom';
import React, { Component } from 'react';
import TestUtils from 'react-addons-test-utils';
import createDevTools from '../src/createDevTools';
import devTools from '../src/devTools';
import { createStore } from 'redux';
class MockMonitor extends Component {
render() {
return null;
}
}
describe('createDevTools', () => {
jsdom();
it('should pass devToolsStore to monitor', () => {
const store = devTools()(createStore)(() => {});
const DevTools = createDevTools(React);
const tree = TestUtils.renderIntoDocument(
<DevTools monitor={MockMonitor} store={store} />
);
const mockMonitor = TestUtils.findRenderedComponentWithType(tree, MockMonitor);
expect(mockMonitor.props.store).toBe(store.devToolsStore);
});
it('should pass props to monitor', () => {
const store = devTools()(createStore)(() => {});
const DevTools = createDevTools(React);
const tree = TestUtils.renderIntoDocument(
<DevTools monitor={MockMonitor} store={store} one={1} two={2}/>
);
const mockMonitor = TestUtils.findRenderedComponentWithType(tree, MockMonitor);
expect(mockMonitor.props.one).toBe(1);
expect(mockMonitor.props.two).toBe(2);
});
it('should subscribe monitor to store updates', () => {
const DevTools = createDevTools(React);
const store = devTools()(createStore)(
(state, action) => {
switch (action.type) {
case 'INC':
return state + 1;
default:
return state;
}
},
0
);
const tree = TestUtils.renderIntoDocument(
<DevTools monitor={MockMonitor} store={store} />
);
store.dispatch({type: 'INC'});
const mockMonitor = TestUtils.findRenderedComponentWithType(tree, MockMonitor);
const currentStateIndex = mockMonitor.props.currentStateIndex;
const computedStates = mockMonitor.props.computedStates;
expect(computedStates[currentStateIndex].state).toBe(1);
});
it('should warn if devTools() not in middleware', () => {
const spy = expect.spyOn(console, 'error');
const store = createStore(() => {});
const DevTools = createDevTools(React);
expect(
TestUtils.renderIntoDocument,
).withArgs(
<DevTools monitor={MockMonitor} store={store} />
).toThrow();
expect(spy.calls).toContain(
/Could not find the devTools store/,
(call, errMsg) => call.arguments[0].match(errMsg)
);
spy.restore();
});
});

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@ -35,7 +35,7 @@ describe('devTools', () => {
devToolsStore = store.devToolsStore;
});
it('performs actions', () => {
it('should perform actions', () => {
expect(store.getState()).toBe(0);
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(1);
@ -43,7 +43,7 @@ describe('devTools', () => {
expect(store.getState()).toBe(2);
});
it('rollbacks state to the last committed state', () => {
it('should rollback state to the last committed state', () => {
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(2);
@ -65,7 +65,7 @@ describe('devTools', () => {
expect(store.getState()).toBe(2);
});
it('resets to initial state', () => {
it('should reset to initial state', () => {
store.dispatch({ type: 'INCREMENT' });
expect(store.getState()).toBe(1);
@ -85,7 +85,7 @@ describe('devTools', () => {
expect(store.getState()).toBe(0);
});
it('toggles an action', () => {
it('should toggle an action', () => {
// stateIndex 0 = @@INIT
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
@ -99,7 +99,7 @@ describe('devTools', () => {
expect(store.getState()).toBe(1);
});
it('sweeps disabled actions', () => {
it('sweep disabled actions', () => {
// stateIndex 0 = @@INIT
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
@ -120,7 +120,7 @@ describe('devTools', () => {
expect(store.getState()).toBe(2);
});
it('jumps to state', () => {
it('should jump to state', () => {
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
store.dispatch({ type: 'INCREMENT' });
@ -142,12 +142,12 @@ describe('devTools', () => {
expect(store.getState()).toBe(2);
});
it('sets monitor state', () => {
it('should set monitor state', () => {
devToolsStore.dispatch(ActionCreators.setMonitorState({test: 'test'}));
expect(devToolsStore.getState().monitorState.test).toBe('test');
});
it('recomputes', () => {
it('should recompute', () => {
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
store.dispatch({ type: 'INCREMENT' });
@ -165,11 +165,11 @@ describe('devTools', () => {
expect(store.getState()).toBe(13);
});
it('gets the reducer', () => {
it('should get the reducer', () => {
expect(store.getReducer()).toBe(counter);
});
it('replaces the reducer', () => {
it('should replace the reducer', () => {
store.dispatch({ type: 'INCREMENT' });
store.dispatch({ type: 'DECREMENT' });
store.dispatch({ type: 'INCREMENT' });
@ -179,7 +179,7 @@ describe('devTools', () => {
expect(store.getState()).toBe(2);
});
it('catches and records errors', () => {
it('should catch and record errors', () => {
let spy = spyOn(console, 'error');
let storeWithBug = devTools()(createStore)(counterWithBug);