mock responses.. example

lib/local-web-server.js

@@ -2,11 +2,8 @@
 const path = require('path')
 const http = require('http')
 const url = require('url')
-const Koa = require('koa')
-const convert = require('koa-convert')
-const cors = require('kcors')
-const _ = require('koa-route')
-const pathToRegexp = require('path-to-regexp')
+const arrayify = require('array-back')
+let debug
 
 /**
  * @module local-web-server
@@ -43,15 +40,30 @@ function localWebServer (options) {
     verbose: false
   }, options)
 
+  if (options.verbose) {
+    process.env.DEBUG = '*'
+  }
+
+  const Koa = require('koa')
+  const convert = require('koa-convert')
+  const cors = require('kcors')
+  const _ = require('koa-route')
+  const pathToRegexp = require('path-to-regexp')
+  debug = require('debug')('local-web-server')
+
   const log = options.log
   log.options = log.options || {}
 
   const app = new Koa()
   const _use = app.use
   app.use = x => _use.call(app, convert(x))
+
   function verbose (category, message) {
     if (options.verbose) {
-      process.nextTick(() => app.emit('verbose', category, message))
+      debug(category, message)
+      // process.nextTick(() => {
+      //   app.emit('verbose', category, message)
+      // })
     }
   }
   app._verbose = verbose
@@ -89,7 +101,7 @@ function localWebServer (options) {
   if (!options['no-cache']) {
     const conditional = require('koa-conditional-get')
     const etag = require('koa-etag')
-    verbose('etag caching', 'enabled')
+    // verbose('etag caching', 'enabled')
     app.use(conditional())
     app.use(etag())
   }
@@ -131,17 +143,20 @@ function localWebServer (options) {
     }
   }
 
+  /* Mock Responses */
+  app.use(mockResponses({ root: options.static.root, verbose: verbose }))
+
   /* serve static files */
   if (options.static.root) {
     const serve = require('koa-static')
-    verbose('static', `root: ${options.static.root} options: ${JSON.stringify(options.static.options)}` )
+    // verbose('static', 'enabled')
     app.use(serve(options.static.root, options.static.options))
   }
 
   /* serve directory index */
   if (options.serveIndex.path) {
     const serveIndex = require('koa-serve-index')
-    verbose('serve-index', `root: ${options.serveIndex.path} options: ${JSON.stringify(options.serveIndex.options)}` )
+    // verbose('serve-index', 'enabled')
     app.use(serveIndex(options.serveIndex.path, options.serveIndex.options))
   }
 
@@ -210,6 +225,22 @@ function blacklist (forbid) {
   }
 }
 
+function mockResponses (options) {
+  options = options || { root: process.cwd() }
+  return function mockResponses (ctx, next) {
+    if (/\.mock.js$/.test(ctx.path)) {
+      const mocks = arrayify(require(path.join(options.root, ctx.path)))
+      const mock = mocks.find(mock => {
+        return !mock.request || mock.request.method === ctx.method
+      })
+      Object.assign(ctx.response, mock.response)
+      options.verbose('mock response', JSON.stringify(mock.response), JSON.stringify(ctx.response))
+    } else {
+      return next()
+    }
+  }
+}
+
 process.on('unhandledRejection', (reason, p) => {
   throw reason
 })