extract getPluginName and toCamelCase to lib-folder (#205)

lib/extractPluginName.js → lib/getPluginName.js

@@ -3,9 +3,20 @@
 const fpStackTracePattern = /at\s{1}(?:.*\.)?plugin\s{1}.*\n\s*(.*)/
 const fileNamePattern = /(\w*(\.\w*)*)\..*/
 
-module.exports = function extractPluginName (stack) {
+module.exports = function getPluginName (fn) {
+  if (fn.name.length > 0) return fn.name
+
+  try {
+    throw new Error('anonymous function')
+  } catch (e) {
+    return extractPluginName(e.stack)
+  }
+}
+
+function extractPluginName (stack) {
   const m = stack.match(fpStackTracePattern)
 
   // get last section of path and match for filename
   return m ? m[1].split(/[/\\]/).slice(-1)[0].match(fileNamePattern)[1] : 'anonymous'
 }
+module.exports.extractPluginName = extractPluginName

lib/toCamelCase.js

@@ -0,0 +1,11 @@
+'use strict'
+
+module.exports = function toCamelCase (name) {
+  if (name[0] === '@') {
+    name = name.slice(1).replace('/', '-')
+  }
+  const newName = name.replace(/-(.)/g, function (match, g1) {
+    return g1.toUpperCase()
+  })
+  return newName
+}

plugin.js

@@ -1,6 +1,7 @@
 'use strict'
 
-const extractPluginName = require('./lib/extractPluginName')
+const getPluginName = require('./lib/getPluginName')
+const toCamelCase = require('./lib/toCamelCase')
 
 let count = 0
 
@@ -38,7 +39,7 @@ function plugin (fn, options = {}) {
 
   if (!options.name) {
     autoName = true
-    options.name = checkName(fn) + '-auto-' + count++
+    options.name = getPluginName(fn) + '-auto-' + count++
   }
 
   fn[Symbol.for('skip-override')] = options.encapsulate !== true
@@ -61,25 +62,5 @@ function plugin (fn, options = {}) {
   return fn
 }
 
-function checkName (fn) {
-  if (fn.name.length > 0) return fn.name
-
-  try {
-    throw new Error('anonymous function')
-  } catch (e) {
-    return extractPluginName(e.stack)
-  }
-}
-
-function toCamelCase (name) {
-  if (name[0] === '@') {
-    name = name.slice(1).replace('/', '-')
-  }
-  const newName = name.replace(/-(.)/g, function (match, g1) {
-    return g1.toUpperCase()
-  })
-  return newName
-}
-
 plugin.default = plugin
 module.exports = plugin

test/extractPluginName.test.js

@@ -1,7 +1,7 @@
 'use strict'
 
 const t = require('tap')
-const extractPluginName = require('../lib/extractPluginName')
+const extractPluginName = require('../lib/getPluginName').extractPluginName
 
 const winStack = `Error: anonymous function
 at checkName (C:\\Users\\leonardo.davinci\\Desktop\\fastify-plugin\\index.js:43:11)

test/toCamelCase.test.js

@@ -0,0 +1,24 @@
+'use strict'
+
+const { test } = require('tap')
+const toCamelCase = require('../lib/toCamelCase')
+
+test('from kebab-case to camelCase', (t) => {
+  t.plan(1)
+  t.equal(toCamelCase('hello-world'), 'helloWorld')
+})
+
+test('from @-prefixed named imports', (t) => {
+  t.plan(1)
+  t.equal(toCamelCase('@hello/world'), 'helloWorld')
+})
+
+test('from @-prefixed named kebab-case to camelCase', (t) => {
+  t.plan(1)
+  t.equal(toCamelCase('@hello/my-world'), 'helloMyWorld')
+})
+
+test('from kebab-case to camelCase multiple words', (t) => {
+  t.plan(1)
+  t.equal(toCamelCase('hello-long-world'), 'helloLongWorld')
+})