Use ava

index.js

@@ -1,26 +1,13 @@
-const fs = require('fs')
-const path = require('path')
-const filesize = require('filesize')
 const imageSize = require('image-size')
 const resizeImage = require('resize-img')
 
-function getOutputFileName(input) {
-  const inputPath = path.parse(input)
-  return path.resolve(inputPath.dir, inputPath.name + '-lowly' + inputPath.ext)
-}
-
-function lowly(input) {
-  const fileInput = fs.readFileSync(input)
-  const fileOutput = getOutputFileName(input)
-
-  const dimensions = imageSize(fileInput)
+function lowly(image) {
+  const dimensions = imageSize(image)
   const finalWidth = 30
-  const finalHeight = Math.round(finalWidth / dimensions.width * dimensions.height)
-  resizeImage(fileInput, {width: finalWidth, height: finalHeight})
-    .then(buff => {
-      fs.writeFileSync(fileOutput, buff)
-      console.log('Final size: ' + filesize(buff.length))
-    })
+  const finalHeight = Math.round(
+    finalWidth / dimensions.width * dimensions.height
+  )
+  return resizeImage(image, {width: finalWidth, height: finalHeight})
 }
 
 module.exports = lowly

package.json

@@ -4,19 +4,24 @@
   "description": "Build low quality images",
   "main": "index.js",
   "scripts": {
-    "test": "xo && tape test/index.js",
+    "test": "xo && ava -v",
     "coveralls": "nyc npm test && nyc report --reporter=text-lcov | coveralls"
   },
   "author": "Thiago Santos",
+  "bin": {
+    "lowly": "./bin.js"
+  },
   "license": "MIT",
   "dependencies": {
     "filesize": "^3.5.6",
     "image-size": "^0.5.1",
-    "resize-img": "^1.1.2"
+    "resize-img": "^1.1.2",
+    "round-to": "^2.0.0"
   },
   "devDependencies": {
+    "ava": "^0.18.2",
     "nyc": "^10.1.2",
-    "tape": "^4.6.3",
+    "pify": "^2.3.0",
     "xo": "^0.18.0"
   },
   "xo": {

test/index.js

@@ -1,17 +1,17 @@
-const fs = require('fs')
-const path = require('path')
-const test = require('tape')
-const lowly = require('../')
+import fs from 'fs'
+import path from 'path'
+import test from 'ava'
+import pify from 'pify'
+import lowly from '../'
 
-test('lowly', t => {
-  const initialSize = fs.readFileSync(
-    path.resolve(__dirname, 'fixture.jpeg')
-  ).length
-  lowly(path.resolve(__dirname, 'fixture.jpeg'))
-  const finalSize = fs.readFileSync(
-    path.resolve(__dirname, 'fixture-lowly.jpeg')
-  ).length
+const readFile = pify(fs.readFile)
 
-  t.ok(initialSize > finalSize, 'the final size should be much lower')
-  t.end()
+test('lowly', async t => {
+  const image = await readFile(path.resolve(__dirname, 'fixture.jpeg'))
+  const lowlyImage = await lowly(image)
+
+  const initialSize = image.length
+  const finalSize = lowlyImage.length
+
+  t.true(initialSize > finalSize, 'the final size should be much lower')
 })