Fake some feathers dependencies in service unit tests. Starter for your own customized fakes
npm install feathers-tests-fake-app-users> Fake app and database services such as users.
The following example is from test/example.js.
It may be run with npm run test:only.
In this example we want to perform some unit tests on feathers-service-verify-reset's resend method,
so we need to fake its Feathers dependencies app and users.
We would be running integration tests if we used Feathers' actual app and users,
and such tests would be more complicated.
``javascript
const feathersFakes = require('feathers-tests-fake-app-user');
const verifyResetService = require('feathers-service-verify-reset').service;
const testUsersDb = [ // faked in-memory database
{ _id: 'a', email: 'a', isVerified: false, verifyToken: '000', verifyExpires: Date.now() + 5000 },
];
describe('verifyReset::resend', () => {
var db, app, users, verifyReset;
beforeEach(() => {
db = clone(testUsersDb);
app = feathersFakes.app(); // stub Feathers app
users = feathersFakes.makeDbService(app, 'users', db); // mock users service
app.use('/users', users);
app.configure(verifyResetService());
// Internally verifyResetService() attaches itself as a service with
// app.use('/verifyReset/:action/:value', {...});
// So now we get a handle to that service
verifyReset = app.service('/verifyReset/:action/:value');
});
it('updates unverified user', (done) => {
const email = 'a';
verifyReset.create({ action: 'resend', value: email }, {}, (err, user) => {
assert.strictEqual(err, null, 'err code set');
// Check user record modified as expected
assert.strictEqual(user.isVerified, false, 'isVerified not false');
assert.isString(user.verifyToken, 'verifyToken not String');
assert.equal(user.verifyToken.length, 30, 'verify token wrong length');
// Check database record is identical
assert.deepEqual(user, db[0]);
done();
});
});
});
`
It can be difficult to fake dependencies when running unit tests.
This package provides fakes for the most common dependencies in a Feathers' project.
Install Nodejs.
Run npm install feathers-tests-fake-app-users --save-dev in your project folder.
You can then require the utilities.
/src on GitHub contains the ES6 source.
It will run on Node 6+ without transpiling.
test/example.js is described above. It runs as part of the tests.
See Code Example above.
The exports in src/index.js are fully documented.
npm test to run tests.
npm run cover` to run tests plus coverage.
MIT. See LICENSE.