Use parse only if not an icon object

package.json

@@ -26,9 +26,8 @@
   "scripts": {
     "build": "rollup -c rollup.config.js",
     "dist": "cross-env NODE_ENV=production npm run build",
-    "test": "npm run test.latest && npm run test.next",
+    "test": "npm run test.latest && npm run test.next.proregistry",
     "test.latest": "npm --no-save install @fortawesome/fontawesome-svg-core@latest @fortawesome/free-solid-svg-icons@latest && jest --silent",
-    "test.next": "npm --no-save install @fortawesome/fontawesome-svg-core@next @fortawesome/free-solid-svg-icons@next && jest --silent",
     "test.next.proregistry": "npm --userconfig .npmrc.proregistry --registry https://npm.fontawesome.com install --no-save @fortawesome/fontawesome-svg-core@next @fortawesome/free-solid-svg-icons@next && jest --silent",
     "prepack": "npm run dist"
   },

src/components/FontAwesomeIcon.js

@@ -4,6 +4,12 @@ import log from '../logger'
 import { objectWithKey, classList } from '../utils'
 
 function normalizeIconArgs (icon) {
+  // this has everything that it needs to be rendered which means it was probably imported
+  // directly from an icon svg package
+  if (icon && typeof icon === 'object' && icon.prefix && icon.iconName && icon.icon) {
+    return icon
+  }
+
   if (faParse.icon) {
     return faParse.icon(icon)
   }
@@ -12,7 +18,7 @@ function normalizeIconArgs (icon) {
     return null
   }
 
-  if (typeof icon === 'object' && icon.prefix && icon.iconName) {
+  if (icon && typeof icon === 'object' && icon.prefix && icon.iconName) {
     return icon
   }
 

src/components/__tests__/FontAwesomeIcon.test.js

@@ -1,7 +1,7 @@
 import Vue from 'vue/dist/vue'
 import FontAwesomeIcon from '../FontAwesomeIcon'
 import { library } from '@fortawesome/fontawesome-svg-core'
-import { faClose } from '@fortawesome/free-solid-svg-icons'
+import { faClose, faUser } from '@fortawesome/free-solid-svg-icons'
 import { faCoffee, faCircle, faSpartan } from '../__fixtures__/icons'
 import { coreHasFeature, REFERENCE_ICON_USING_STRING, REFERENCE_ICON_BY_STYLE, ICON_ALIASES, compileAndMount, mountFromProps } from '../__fixtures__/helpers'
 
@@ -10,6 +10,10 @@ beforeEach(() => {
   Vue.component('font-awesome-icon', FontAwesomeIcon)
 })
 
+afterEach(() => {
+  library.reset()
+})
+
 test('using a FAT icon with array format', () => {
   const vm = mountFromProps({ icon: ['fat', 'spartan'] })
 
@@ -33,7 +37,7 @@ if(coreHasFeature(ICON_ALIASES)) {
     const vm = mountFromProps({ icon: ['fas', 'close'] })
 
     expect(vm.$el.tagName).toBe('svg')
-    expect(vm.$el.classList.contains('fa-close')).toBeTruthy()
+    expect(vm.$el.classList.contains('fa-xmark')).toBeTruthy()
   })
 }
 
@@ -69,6 +73,13 @@ if (coreHasFeature(REFERENCE_ICON_BY_STYLE)) {
   })
 }
 
+test('passing icon directly', () => {
+  const vm = mountFromProps({ icon: faUser })
+
+  expect(vm.$el.tagName).toBe('svg')
+  expect(vm.$el.classList.contains('fa-user')).toBeTruthy()
+})
+
 test('using array format', () => {
   const vm = mountFromProps({ icon: ['fas', 'coffee'] })