Add a base benchmark. RE: #146

jest.config.js

@@ -16,5 +16,9 @@ module.exports = {
     'jsx',
     'json'
   ],
-  verbose: true
+  verbose: true,
+  testPathIgnorePatterns: [
+    'node_modules',
+    'benchmark'
+  ]
 }

package.json

@@ -44,6 +44,7 @@
     "lint": "eslint src test",
     "start": "webpack-dev-server --config ./webpack.config.dev.js",
     "test": "jest",
+    "test:bench": "node -r babel-register test/benchmark/parser.js",
     "test:coverage": "jest --coverage",
     "webpack:library": "rimraf dist/library/* && NODE_ENV=production webpack --config webpack.config.library.js"
   },
@@ -81,6 +82,7 @@
     "babel-preset-stage-2": "^6.24.1",
     "babel-regenerator-runtime": "^6.5.0",
     "babel-runtime": "^6.23.0",
+    "benchmark": "^2.1.4",
     "css-loader": "^0.28.4",
     "eslint": "^4.1.0",
     "eslint-config-standard": "^10.2.1",

src/lib/clone.js

@@ -0,0 +1,5 @@
+import { cloneDeep } from 'lodash'
+
+/** Unsafe JSON clone */
+// export const clone = (obj) => JSON.parse(JSON.stringify(obj))
+export const clone = cloneDeep

src/parser/open-api/allOfResolver.js

@@ -1,5 +1,4 @@
-import clone from 'lodash/clone'
-import cloneDeep from 'lodash/cloneDeep'
+import { clone } from '../../lib/clone'
 import uniq from 'lodash/uniq'
 
 /**
@@ -10,7 +9,7 @@ import uniq from 'lodash/uniq'
  * @return {Object}
  */
 function resolveAllOfItem (node) {
-  const output = cloneDeep(node)
+  const output = clone(node)
   delete output.allOf
 
   const allOfItems = node.allOf
@@ -19,12 +18,12 @@ function resolveAllOfItem (node) {
 
     Object.keys(item).forEach(key => {
       if (!output.hasOwnProperty(key)) {
-        output[key] = cloneDeep(item[key])
+        output[key] = clone(item[key])
       } else if (key === 'properties') {
         const properties = item[key]
 
         Object.keys(properties).forEach(name => {
-          output.properties[name] = cloneDeep(properties[name])
+          output.properties[name] = clone(properties[name])
         })
       } else if (key === 'required') {
         // Concatenate to existing list and remove duplicates

src/parser/open-api/oneOfResolver.js

@@ -1,4 +1,4 @@
-import cloneDeep from 'lodash/cloneDeep'
+import { clone } from '../../lib/clone'
 import get from 'lodash/get'
 import update from 'lodash/update'
 import toPath from 'lodash/toPath'
@@ -72,7 +72,7 @@ function getStates (paths, obj) {
  * @return {object[]}
  */
 function getStateAt (path, obj) {
-  const clonedObj = cloneDeep(obj)
+  const clonedObj = clone(obj)
   const states = get(clonedObj, path)
 
   // Couldn't retrieve the states at this path, bail.
@@ -90,7 +90,7 @@ function getStateAt (path, obj) {
     // Replace the path with the state
     update(clonedObj, parentPath, (value) => merge(value, state))
 
-    return cloneDeep(clonedObj)
+    return clone(clonedObj)
   })
 }
 

test/benchmark/Benchmark.js

@@ -0,0 +1,54 @@
+import Bench from 'benchmark'
+import { writeFile, ensureDir } from 'fs-extra'
+import { dirname } from 'path'
+import { cloneDeep } from 'lodash'
+
+export class Benchmark {
+  key;
+  config;
+
+  constructor (key, config = {}) {
+    Object.assign(this, { key, config })
+  }
+
+  async run (task) {
+    async function fn (defer) {
+      await task()
+      defer.resolve()
+    }
+
+    this.results = []
+
+    await new Promise((resolve) => {
+      const bench = new Bench(this.key, {
+        defer: true,
+        async: true,
+        onComplete: resolve,
+        onCycle: (event) => {
+          this.results.push(cloneDeep(event.target))
+
+          if (this.config.onCycle) { this.config.onCycle(event) }
+        },
+        fn,
+        ...this.config
+      })
+
+      bench.run()
+    })
+
+    return this
+  }
+
+  serialize (results = this.results) {
+    return results.slice(-3).map((result) => {
+      return String(result)
+    }).join('\n')
+  }
+
+  async saveSnapshot (filePath, results = this.results) {
+    const dir = dirname(filePath)
+
+    await ensureDir(dir)
+    return writeFile(filePath, this.serialize(results), 'utf8')
+  }
+}

test/benchmark/definitions/index.js

@@ -0,0 +1,2 @@
+export { default as petStore } from './petStore'
+export { default as temandoFull } from './temandoFull'