Stream Mock

!node
!npm type definitions
!GitHub

Mock nodejs streams.

Features

- Create a
readable stream
from any iterable.
- Create a
writable stream
that puts its data at your disposal.
- Create a
duplex stream
that combines a readable and writable stream together.
- Can operate both in
object and normal
( Buffer ) mode.

Quick start

``shell
yarn add stream-mock
`

Or, if you are more a npm person

`shell
npm i stream-mock
`

$3

You are building an awesome brand new
Transform stream
that rounds all your values.

`javascript
import { Transform } from 'stream';

export default class Rounder extends Transform {
_transform(chunk, encoding, callback) {
this.push(Math.round(chunk));
callback();
}
}
`

Now you need / want to test it.

`javascript
import { ObjectReadableMock, ObjectWritableMock } from 'stream-mock';
import chai from 'chai';

import Rounder from 'the/seven/bloody/hells';

chai.should();

describe('Test me if you can', (done) => {
it('Round me like one of your french girls', {
// Given
const input = [1.2, 2.6, 3.7];
const transform = new Rounder({objectMode: true});
const reader = new ObjectReadableMock(input);
const writer = new ObjectWritableMock();
// When
reader.pipe(transform).pipe(writer);
// Then
writer.on('finish', ()=>{
writer.data.should.deep.equal(input.map(Math.round));
})
});
});
``

!magic

$3

Full API doc is hosted here

----------------

License

MIT