forked from zhurui/management
96 lines
2.1 KiB
JavaScript
96 lines
2.1 KiB
JavaScript
'use strict'
|
|
|
|
const assert = require('chai').assert
|
|
const spooks = require('spooks')
|
|
|
|
const modulePath = '../../src/datastream'
|
|
|
|
suite('datastream:', () => {
|
|
let log
|
|
|
|
setup(() => {
|
|
log = {}
|
|
})
|
|
|
|
test('require does not throw', () => {
|
|
assert.doesNotThrow(() => {
|
|
require(modulePath)
|
|
})
|
|
})
|
|
|
|
test('require returns function', () => {
|
|
assert.isFunction(require(modulePath))
|
|
})
|
|
|
|
suite('require:', () => {
|
|
let Stream
|
|
|
|
setup(() => {
|
|
Stream = require(modulePath)
|
|
})
|
|
|
|
test('Stream expects two arguments', () => {
|
|
assert.lengthOf(Stream, 2)
|
|
})
|
|
|
|
test('calling Stream with function argument doesNotThrow', () => {
|
|
assert.doesNotThrow(() => {
|
|
Stream(() => {})
|
|
})
|
|
})
|
|
|
|
test('calling Stream with object argument throws', () => {
|
|
assert.throws(() => {
|
|
Stream({ read: () => {} })
|
|
})
|
|
})
|
|
|
|
test('calling Stream with new returns Stream instance', () => {
|
|
assert.instanceOf(new Stream(() => {}), Stream)
|
|
})
|
|
|
|
test('calling Stream with new returns Readable instance', () => {
|
|
assert.instanceOf(new Stream(() => {}), require('stream').Readable)
|
|
})
|
|
|
|
test('calling Stream without new returns Stream instance', () => {
|
|
assert.instanceOf(Stream(() => {}), Stream)
|
|
})
|
|
|
|
suite('instantiate:', () => {
|
|
let datastream
|
|
|
|
setup(() => {
|
|
datastream = new Stream(spooks.fn({ name: 'read', log: log }))
|
|
})
|
|
|
|
test('datastream has _read method', () => {
|
|
assert.isFunction(datastream._read)
|
|
})
|
|
|
|
test('_read expects no arguments', () => {
|
|
assert.lengthOf(datastream._read, 0)
|
|
})
|
|
|
|
test('read was not called', () => {
|
|
assert.strictEqual(log.counts.read, 0)
|
|
})
|
|
|
|
suite('datastream._read:', () => {
|
|
setup(() => {
|
|
datastream._read()
|
|
})
|
|
|
|
test('read was called once', () => {
|
|
assert.strictEqual(log.counts.read, 1)
|
|
assert.isUndefined(log.these.read[0])
|
|
})
|
|
|
|
test('read was called correctly', () => {
|
|
assert.lengthOf(log.args.read[0], 0)
|
|
})
|
|
})
|
|
})
|
|
})
|
|
})
|