How to assert and test the state of ReactJS / Fluxible Component?
My app is a Fluxible / React app.
I have the following spec which is trying to validate LoginForm. Inline components have been trimmed using rewire. I referenced http://fluxible.io/api/components.html#testing .
The first specification ("rendering") passes. However, when I try to do more tests, as shown in the commented code, the test fails.
I am unable to assert the state of the LoginForm or fire simulated events with TestUtils on the component. Are there any ways to do this?
import React from 'react/addons';;
import { createMockComponentContext } from 'fluxible/utils';
import createStore from 'fluxible/addons/createStore';
var rewire = require("rewire");
var rewireModule = require("../../helpers/rewire-module");
// stub inner components with LoginForm
// `rewire` instead of `require`
var LoginForm = rewire("../../../src/components/auth/login-form");
// Replace the required module with a stub component.
rewireModule(LoginForm, {
FormattedMessage: React.createClass({
render: function() { return <div />; }
}),
NavLink: React.createClass({
render: function() { return <div />; }
})
});
describe('LoginForm', function() {
var context;
var TestUtils;
var provideContext;
var connectToStores;
var MockIntlStore;
var MockAuthStore;
var noop = function(){};
var component;
beforeEach(function(){
MockIntlStore = createStore({
storeName: 'IntlStore',
getMessage: noop,
getState: function(){
return {}
}
});
MockAuthStore = createStore({
storeName: 'AuthStore'
});
context = createMockComponentContext({
stores: [MockIntlStore, MockAuthStore]
});
// React must be required after window is set
TestUtils = React.addons.TestUtils
provideContext = require('fluxible/addons/provideContext');
connectToStores = require('fluxible/addons/connectToStores');
// Wrap with context provider and store connector
LoginForm = provideContext(connectToStores(LoginForm, [MockIntlStore, MockAuthStore], function (stores) {
return {
};
}));
component = TestUtils.renderIntoDocument(
<LoginForm context={context} />
);
});
it("renders", function() {
var foundComponent = TestUtils.findRenderedDOMComponentWithClass(
component, 'login-form');
expect(foundComponent).toBeDefined();
});
// TODO fluxible wraps components so we cant reach the inner component to assert on state and trigger event handlers
// it("should have an initial state", function() {
// let initialState = {
// username: '',
// pass: ''
// }
// expect(component.state).toEqual(initialState);
// });
});
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When you use provideContext
and connectToStores
, your component is wrapped. You did it right to find the component using TestUtils. findRenderedDOMComponentWithClass
, just use foundComponent for testing, this is what is being tested. i.e.
...
var foundComponent = TestUtils.findRenderedDOMComponentWithClass(
component, 'login-form');
expect(foundComponent.state).toEqual(initialState);
...
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If you are still looking for a solution:
var tbg = React.createElement(x, { di: serviceLocator });
var renderer = React.addons.TestUtils.createRenderer();
var rtbg = renderer.render(tbg);
Then your method is here:
renderer._instance._instance.myMethod
Where myMethod is a member of a component function x
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