Added a test helper (#103)

Author: mcollina

app_template/test/helper.js

@@ -0,0 +1,34 @@
+'use strict'
+
+// This file contains code that we reuse
+// between our tests.
+
+const Fastify = require('fastify')
+const fp = require('fastify-plugin')
+const App = require('../app')
+
+// Fill in this config with all the configurations
+// needed for testing the application
+function config () {
+  return {}
+}
+
+// automatically build and tear down our instance
+function build (t) {
+  const app = Fastify()
+
+  // fastify-plugin ensures that all decorators
+  // are exposed for testing purposes, this is
+  // different from the production setup
+  app.register(fp(App), config())
+
+  // tear down our app after we are done
+  t.tearDown(app.close.bind(app))
+
+  return app
+}
+
+module.exports = {
+  config,
+  build
+}

app_template/test/services/example.test.js

@@ -1,15 +1,13 @@
 'use strict'
 
 const { test } = require('tap')
-const Fastify = require('fastify')
-const App = require('../../app')
+const { build } = require('../helper')
 
 test('example is loaded', (t) => {
   t.plan(2)
-  const fastify = Fastify()
-  fastify.register(App)
+  const app = build(t)
 
-  fastify.inject({
+  app.inject({
     url: '/example'
   }, (err, res) => {
     t.error(err)
@@ -20,10 +18,9 @@ test('example is loaded', (t) => {
 // It you prefer async/await, use the following
 //
 // test('example is loaded', async (t) => {
-//   const fastify = Fastify()
-//   fastify.register(App)
+//   const app = build(t)
 //
-//   const res = await fastify.inject({
+//   const res = await app.inject({
 //     url: '/example'
 //   })
 //   t.equal(res.payload, 'this is an example')

app_template/test/services/root.test.js

@@ -1,15 +1,13 @@
 'use strict'
 
 const { test } = require('tap')
-const Fastify = require('fastify')
-const App = require('../../app')
+const { build } = require('../helper')
 
 test('default root route', (t) => {
   t.plan(2)
-  const fastify = Fastify()
-  fastify.register(App)
+  const app = build(t)
 
-  fastify.inject({
+  app.inject({
     url: '/'
   }, (err, res) => {
     t.error(err)
@@ -20,10 +18,9 @@ test('default root route', (t) => {
 // It you prefer async/await, use the following
 //
 // test('default root route', async (t) => {
-//   const fastify = Fastify()
-//   fastify.register(App)
+//   const app = build(t)
 //
-//   const res = await fastify.inject({
+//   const res = await app.inject({
 //     url: '/'
 //   })
 //   t.deepEqual(JSON.parse(res.payload), { root: true })