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'use strict'
const assert = require('chai').assert
const proxyquire = require('proxyquire')
const spooks = require('spooks')
const Promise = require('bluebird')
const modulePath = '../../src/write'
suite('write:', () => {
test('require does not throw', () => {
assert.doesNotThrow(() => {
require(modulePath)
})
})
test('require returns function', () => {
assert.isFunction(require(modulePath))
})
suite('require:', () => {
let log, results, write
setup(() => {
log = {}
results = {
createWriteStream: [ {} ]
}
write = proxyquire(modulePath, {
'fs': {
createWriteStream: spooks.fn({
name: 'createWriteStream',
log: log,
results: results.createWriteStream
})
},
'./streamify': spooks.fn({
name: 'streamify',
log: log,
results: [
{
pipe: spooks.fn({ name: 'pipe', log: log, chain: true }),
on: spooks.fn({ name: 'on', log: log, chain: true })
}
]
})
})
})
test('write expects three arguments', () => {
assert.lengthOf(write, 3)
})
test('write does not throw', () => {
assert.doesNotThrow(() => {
write()
})
})
test('streamify was not called', () => {
assert.strictEqual(log.counts.streamify, 0)
})
test('fs.createWriteStream was not called', () => {
assert.strictEqual(log.counts.createWriteStream, 0)
})
test('stream.pipe was not called', () => {
assert.strictEqual(log.counts.pipe, 0)
})
test('stream.on was not called', () => {
assert.strictEqual(log.counts.on, 0)
})
suite('write:', () => {
let path, data, options, result
setup(() => {
path = {}
data = {}
options = {}
result = write(path, data, options)
})
test('streamify was called once', () => {
assert.strictEqual(log.counts.streamify, 1)
assert.isUndefined(log.these.streamify[0])
})
test('streamify was called correctly', () => {
assert.lengthOf(log.args.streamify[0], 2)
assert.strictEqual(log.args.streamify[0][0], data)
assert.lengthOf(Object.keys(log.args.streamify[0][0]), 0)
assert.strictEqual(log.args.streamify[0][1], options)
assert.lengthOf(Object.keys(log.args.streamify[0][1]), 0)
})
test('fs.createWriteStream was called once', () => {
assert.strictEqual(log.counts.createWriteStream, 1)
})
test('fs.createWriteStream was called correctly', () => {
assert.lengthOf(log.args.createWriteStream[0], 2)
assert.strictEqual(log.args.createWriteStream[0][0], path)
assert.lengthOf(Object.keys(log.args.createWriteStream[0][0]), 0)
assert.strictEqual(log.args.createWriteStream[0][1], options)
assert.lengthOf(Object.keys(log.args.createWriteStream[0][1]), 0)
})
test('stream.pipe was called once', () => {
assert.strictEqual(log.counts.pipe, 1)
})
test('stream.pipe was called correctly', () => {
assert.lengthOf(log.args.pipe[0], 1)
assert.strictEqual(log.args.pipe[0][0], results.createWriteStream[0])
assert.lengthOf(Object.keys(log.args.pipe[0][0]), 0)
})
test('stream.on was called three times', () => {
assert.strictEqual(log.counts.on, 3)
})
test('stream.on was called correctly first time', () => {
assert.lengthOf(log.args.on[0], 2)
assert.strictEqual(log.args.on[0][0], 'finish')
assert.isFunction(log.args.on[0][1])
})
test('stream.on was called correctly second time', () => {
assert.lengthOf(log.args.on[1], 2)
assert.strictEqual(log.args.on[1][0], 'error')
assert.isFunction(log.args.on[1][1])
assert.notStrictEqual(log.args.on[1][1], log.args.on[0][1])
})
test('stream.on was called correctly third time', () => {
assert.lengthOf(log.args.on[2], 2)
assert.strictEqual(log.args.on[2][0], 'dataError')
assert.isFunction(log.args.on[2][1])
assert.notStrictEqual(log.args.on[2][1], log.args.on[0][1])
assert.strictEqual(log.args.on[2][1], log.args.on[1][1])
})
test('promise was returned', () => {
assert.instanceOf(result, Promise)
})
suite('dispatch finish event:', () => {
let resolved, error, passed, failed
setup(done => {
passed = failed = false
result.then(res => {
resolved = res
passed = true
done()
}).catch(err => {
error = err
failed = true
done()
})
log.args.on[0][1]('foo')
})
test('promise was resolved', () => {
assert.isTrue(passed)
assert.isFalse(failed)
assert.isUndefined(resolved)
})
})
suite('dispatch error event:', () => {
let resolved, error, passed, failed
setup(done => {
passed = failed = false
result.then(r => {
resolved = r
passed = true
done()
}).catch(e => {
error = e
failed = true
done()
})
log.args.on[1][1]('foo')
})
test('promise was rejected', () => {
assert.isTrue(failed)
assert.isFalse(passed)
assert.strictEqual(error, 'foo')
})
})
suite('dispatch dataError event:', () => {
let resolved, error, passed, failed
setup(done => {
passed = failed = false
result.then(r => {
resolved = r
passed = true
done()
}).catch(e => {
error = e
failed = true
done()
})
log.args.on[2][1]('wibble')
})
test('promise was rejected', () => {
assert.isTrue(failed)
assert.isFalse(passed)
assert.strictEqual(error, 'wibble')
})
})
})
})
})
suite('write with error thrown by fs.createWriteStream:', () => {
let write
setup(() => {
write = proxyquire(modulePath, {
fs: {
createWriteStream () {
throw new Error('foo')
}
},
'./streamify': () => ({
pipe: spooks.fn({ name: 'pipe', log: {}, chain: true }),
on: spooks.fn({ name: 'on', log: {}, chain: true })
})
})
})
test('write does not throw', () => {
assert.doesNotThrow(() => {
write().catch(() => {})
})
})
test('write rejects', () => {
write()
.then(() => assert.fail('write should reject'))
.catch(error => {
assert.instanceOf(error, Error)
assert.equal(error.message, 'foo')
})
})
})