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