mocks v2

bin/cli.js

@@ -8,22 +8,15 @@ const loadConfig = require('config-master')
 const path = require('path')
 const s = require('string-tools')
 const os = require('os')
+const arrayify = require('array-back')
 
 const cli = commandLineArgs(cliOptions.definitions)
 const usage = cli.getUsage(cliOptions.usageData)
 const stored = loadConfig('local-web-server')
 const options = collectOptions()
 
-// TODO summary line on server launch
-
-if (options.misc.help) {
-  console.log(usage)
-  process.exit(0)
-}
-if (options.misc.config) {
-  console.log(JSON.stringify(options.server, null, '  '))
-  process.exit(0)
-}
+if (options.misc.help) stop(usage, 0)
+if (options.misc.config) stop(JSON.stringify(options.server, null, '  '), 0)
 
 const app = localWebServer({
   static: {
@@ -48,19 +41,15 @@ const app = localWebServer({
   spa: options.server.spa,
   'no-cache': options.server['no-cache'],
   rewrite: options.server.rewrite,
-  verbose: options.server.verbose
+  verbose: options.server.verbose,
+  mocks: options.server.mocks
 })
 
-app
-  .on('verbose', (category, message) => {
-    console.error(ansi.format(s.padRight(category, 14), 'bold'), message)
-  })
-  .listen(options.server.port, onServerUp)
+app.listen(options.server.port, onServerUp)
 
-function halt (err) {
-  console.log(ansi.format(`Error: ${err.message}`, 'red'))
-  console.log(usage)
-  process.exit(1)
+function stop (msgs, exitCode) {
+  arrayify(msgs).forEach(msg => console.error(ansi.format(msg)))
+  process.exit(exitCode)
 }
 
 function onServerUp () {
@@ -85,7 +74,7 @@ function collectOptions () {
   try {
     options = cli.parse()
   } catch (err) {
-    halt(err)
+    stop([ `[red]{Error}: ${err.message}`, usage ], 1)
   }
 
   const builtIn = {

example/mock/.local-web-server.json

@@ -1,7 +1,43 @@
 {
-  "rewrite": [
-    { "from": "/trees", "to": "/mocks/trees.mock.js" },
-    { "from": "/trees/:id", "to": "/mocks/tree.mock.js" },
-    { "from": "/search", "to": "/mocks/search.mock.js" }
+  "mocks": [
+    {
+      "route": "/one",
+      "response": {
+        "body": { "id": 1, "name": "whatever" }
+      }
+    },
+    {
+      "route": "/two",
+      "request": { "accepts": "xml" },
+      "response": {
+        "body": "<result id='2' name='whatever' />"
+      }
+    },
+    {
+      "route": "/three",
+      "targets": [
+        {
+          "request": { "method": "GET" },
+          "response": {
+            "body": { "id": 1, "name": "whatever" }
+          }
+        },
+        {
+          "request": { "method": "POST" },
+          "response": {
+            "status": 400,
+            "body": { "message": "That method is not allowed." }
+          }
+        }
+      ]
+    },
+    {
+      "route": "/four",
+      "module": "/mocks/four.js"
+    },
+    {
+      "route": "/five/:id\\?name=:name",
+      "module": "/mocks/five.js"
+    }
   ]
 }

example/mock/mocks/five.js

@@ -0,0 +1,8 @@
+module.exports = {
+  response: function (ctx, id, name) {
+    this.body = {
+      id: id,
+      name: name
+    }
+  }
+}

example/mock/mocks/four.js

@@ -0,0 +1,5 @@
+module.exports = {
+  response: {
+    body: { id: 2, name: 'eucalyptus', maxHeight: 210 }
+  }
+}

example/mock/mocks/search.mock.js

@@ -1,20 +0,0 @@
-module.exports = [
-  {
-    request: {
-      accepts: 'json'
-    },
-    response: {
-      status: 200,
-      body: { id: 2, name: 'eucalyptus', maxHeight: 210 }
-    }
-  },
-  {
-    request: {
-      accepts: 'xml'
-    },
-    response: {
-      status: 200,
-      body: '<tree id="2" name="eucalyptus" maxHeight="210"/>'
-    }
-  }
-]

example/mock/mocks/tree.mock.js

@@ -1,25 +0,0 @@
-module.exports = [
-  /* CREATE (409 CONFLICT - should be called on the collection) */
-  {
-    request: { method: 'POST' },
-    response: { status: 409 }
-  },
-  /* READ */
-  {
-    request: { method: 'GET' },
-    response: {
-      status: 200,
-      body: { id: 2, name: 'eucalyptus', maxHeight: 210 }
-    }
-  },
-  /* UPDATE */
-  {
-    request: { method: 'PUT' },
-    response: { status: 204 }
-  },
-  /* DELETE */
-  {
-    request: { method: 'DELETE' },
-    response: { status: 204 }
-  }
-]

example/mock/mocks/trees.json

@@ -1,7 +0,0 @@
-[
-  { "id": 1, "name": "Conifer", "maxHeight": 115 },
-  { "id": 2, "name": "Eucalyptus", "maxHeight": 210 },
-  { "id": 3, "name": "Ash", "maxHeight": 40 },
-  { "id": 4, "name": "Elder", "maxHeight": 5 },
-  { "id": 5, "name": "Holly", "maxHeight": 10 }
-]

example/mock/mocks/trees.mock.js

@@ -1,34 +0,0 @@
-const data = require('./trees')
-
-module.exports = [
-  /* CREATE */
-  {
-    request: { method: 'POST' },
-    response: function (ctx) {
-      data.push(ctx.request.body)
-      this.status = 201
-      this.location = '/tree/1'
-    }
-  },
-  /* READ */
-  {
-    request: { method: 'GET' },
-    response: function (ctx) {
-      this.status = 200
-      this.body = data.filter(tree => tree.maxHeight > Number(ctx.query.tallerThan || 0))
-    }
-  },
-  /* UPDATE (forbidden on collection)*/
-  {
-    request: { method: 'PUT' },
-    response: { status: 404 }
-  },
-  /* DELETE (forbidden on collection) */
-  {
-    request: { method: 'DELETE' },
-    response: { status: 404 }
-  }
-]
-
-// curl -i http://localhost:8000/trees -H 'content-type: application/json'  -d '{"id":6, "name":"Oak", "maxHeight": 100 }'
-// curl -i http://localhost:8000/trees

lib/local-web-server.js

@@ -44,7 +44,8 @@ function localWebServer (options) {
     mime: {},
     forbid: [],
     rewrite: [],
-    verbose: false
+    verbose: false,
+    mocks: []
   }, options)
 
   if (options.verbose) {
@@ -106,7 +107,7 @@ function localWebServer (options) {
     app.use(mw.blacklist(options.forbid))
   }
 
-  /* Cache */
+  /* cache */
   if (!options['no-cache']) {
     const conditional = require('koa-conditional-get')
     const etag = require('koa-etag')
@@ -144,7 +145,21 @@ function localWebServer (options) {
   }
 
   /* Mock Responses */
-  app.use(mw.mockResponses({ root: options.static.root }))
+  options.mocks.forEach(mock => {
+    if (mock.module) {
+      mock.targets = require(path.join(options.static.root, mock.module))
+    }
+
+    if (mock.targets) {
+      app.use(mw.mockResponses(mock.route, mock.targets))
+    } else if (mock.response) {
+      mock.target = {
+        request: mock.request,
+        response: mock.response
+      }
+      app.use(mw.mockResponses(mock.route, mock.target))
+    }
+  })
 
   /* serve static files */
   if (options.static.root) {

lib/middleware.js

@@ -3,6 +3,7 @@ const path = require('path')
 const http = require('http')
 const url = require('url')
 const arrayify = require('array-back')
+const t = require('typical')
 const pathToRegexp = require('path-to-regexp')
 const debug = require('debug')('local-web-server')
 
@@ -63,17 +64,30 @@ 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)))
+function mime (mimeTypes) {
+  return function mime (ctx, next) {
+    return next().then(() => {
+      const reqPathExtension = path.extname(ctx.path).slice(1)
+      Object.keys(mimeTypes).forEach(mimeType => {
+        const extsToOverride = mimeTypes[mimeType]
+        if (extsToOverride.indexOf(reqPathExtension) > -1) ctx.type = mimeType
+      })
+    })
+  }
+}
+
+function mockResponses (route, targets) {
+  targets = arrayify(targets)
+  debug('mock route: %s, targets: %j', route, targets);
+  const pathRe = pathToRegexp(route)
+
+  return function mockResponse (ctx, next) {
+    if (pathRe.test(ctx.url)) {
       const testValue = require('test-value')
-      const t = require('typical')
 
       /* find a mock with compatible method and accepts */
-      let mock = mocks.find(mock => {
-        return testValue(mock, {
+      let target = targets.find(target => {
+        return testValue(target, {
           request: {
             method: [ ctx.method, undefined ],
             accepts: type => ctx.accepts(type)
@@ -81,33 +95,22 @@ function mockResponses (options) {
         })
       })
 
-      /* else take the first mock without a request (no request means 'all requests') */
-      if (!mock) {
-        mock = mocks.find(mock => !mock.request)
+      /* else take the first target without a request (no request means 'all requests') */
+      if (!target) {
+        target = targets.find(target => !target.request)
       }
 
-      if (mock) {
-        let mockedResponse = mock.response
-        if (t.isFunction(mock.response)) {
-          mockedResponse = new mock.response(ctx)
+      if (target) {
+        let mockedResponse = target.response
+        if (t.isFunction(target.response)) {
+          const pathMatches = ctx.url.match(pathRe).slice(1)
+          const ctor = target.response.bind(null, ...[ctx].concat(pathMatches))
+          mockedResponse = new ctor()
         }
-        debug('mock response: %j', mockedResponse)
+        debug('target response: %j', mockedResponse)
         Object.assign(ctx.response, mockedResponse)
       }
-    } else {
-      return next()
     }
-  }
-}
-
-function mime (mimeTypes) {
-  return function mime (ctx, next) {
-    return next().then(() => {
-      const reqPathExtension = path.extname(ctx.path).slice(1)
-      Object.keys(mimeTypes).forEach(mimeType => {
-        const extsToOverride = mimeTypes[mimeType]
-        if (extsToOverride.indexOf(reqPathExtension) > -1) ctx.type = mimeType
-      })
-    })
+    return next()
   }
 }