From a1589a679cfee2c2e3588faa9007b57f2fcd6aff Mon Sep 17 00:00:00 2001
From: Tim Lai <timothy.lai@gmail.com>
Date: Tue, 23 Jun 2020 10:16:23 -0700
Subject: [PATCH] style: replace var with let in /test files (#6164)

---
 .../helpers/oauth2-server/index.js            |  16 +-
 .../helpers/oauth2-server/model.js            |  30 +-
 test/mocha/core/curlify.js                    |  32 +-
 test/mocha/core/plugins/samples/fn.js         | 278 +++++++++---------
 test/mocha/core/system/system.jsx             |  42 +--
 test/mocha/core/system/wrapComponent.jsx      |  10 +-
 6 files changed, 204 insertions(+), 204 deletions(-)

diff --git a/test/e2e-cypress/helpers/oauth2-server/index.js b/test/e2e-cypress/helpers/oauth2-server/index.js
index ba779352..3e5534c9 100644
--- a/test/e2e-cypress/helpers/oauth2-server/index.js
+++ b/test/e2e-cypress/helpers/oauth2-server/index.js
@@ -1,13 +1,13 @@
 // from https://github.com/pedroetb/node-oauth2-server-example
 
-var Http = require("http")
-var path = require("path")
-var express = require("express")
-var bodyParser = require("body-parser")
-var oauthserver = require("oauth2-server")
-var cors = require("cors")
+let Http = require("http")
+let path = require("path")
+let express = require("express")
+let bodyParser = require("body-parser")
+let oauthserver = require("oauth2-server")
+let cors = require("cors")
 
-var app = express()
+let app = express()
 
 app.use(cors())
 
@@ -34,7 +34,7 @@ app.get("*", app.oauth.authorise(), function (req, res) {
 app.use(app.oauth.errorHandler())
 
 function startServer() {
-  var httpServer = Http.createServer(app)
+  let httpServer = Http.createServer(app)
   httpServer.listen("3231")
 
   return function stopServer() {
diff --git a/test/e2e-cypress/helpers/oauth2-server/model.js b/test/e2e-cypress/helpers/oauth2-server/model.js
index f5722bf4..d794e8d7 100644
--- a/test/e2e-cypress/helpers/oauth2-server/model.js
+++ b/test/e2e-cypress/helpers/oauth2-server/model.js
@@ -1,6 +1,6 @@
 // from https://github.com/pedroetb/node-oauth2-server-example
 
-var config = {
+let config = {
   clients: [{
     clientId: "application",
     clientSecret: "secret"
@@ -21,7 +21,7 @@ var config = {
  * Dump the memory storage content (for debug).
  */
 
-var dump = function () {
+let dump = function () {
 
   console.log("clients", config.clients)
   console.log("confidentialClients", config.confidentialClients)
@@ -33,9 +33,9 @@ var dump = function () {
  * Methods used by all grant types.
  */
 
-var getAccessToken = function (bearerToken, callback) {
+let getAccessToken = function (bearerToken, callback) {
 
-  var tokens = config.tokens.filter(function (token) {
+  let tokens = config.tokens.filter(function (token) {
 
     return token.accessToken === bearerToken
   })
@@ -43,14 +43,14 @@ var getAccessToken = function (bearerToken, callback) {
   return callback(false, tokens[0])
 }
 
-var getClient = function (clientId, clientSecret, callback) {
+let getClient = function (clientId, clientSecret, callback) {
 
-  var clients = config.clients.filter(function (client) {
+  let clients = config.clients.filter(function (client) {
 
     return client.clientId === clientId && client.clientSecret === clientSecret
   })
 
-  var confidentialClients = config.confidentialClients.filter(function (client) {
+  let confidentialClients = config.confidentialClients.filter(function (client) {
 
     return client.clientId === clientId && client.clientSecret === clientSecret
   })
@@ -58,9 +58,9 @@ var getClient = function (clientId, clientSecret, callback) {
   callback(false, clients[0] || confidentialClients[0])
 }
 
-var grantTypeAllowed = function (clientId, grantType, callback) {
+let grantTypeAllowed = function (clientId, grantType, callback) {
 
-  var clientsSource,
+  let clientsSource,
     clients = []
 
   if (grantType === "password") {
@@ -79,7 +79,7 @@ var grantTypeAllowed = function (clientId, grantType, callback) {
   callback(false, clients.length)
 }
 
-var saveAccessToken = function (accessToken, clientId, expires, user, callback) {
+let saveAccessToken = function (accessToken, clientId, expires, user, callback) {
 
   config.tokens.push({
     accessToken: accessToken,
@@ -95,9 +95,9 @@ var saveAccessToken = function (accessToken, clientId, expires, user, callback)
  * Method used only by password grant type.
  */
 
-var getUser = function (username, password, callback) {
+let getUser = function (username, password, callback) {
 
-  var users = config.users.filter(function (user) {
+  let users = config.users.filter(function (user) {
 
     return user.username === username && user.password === password
   })
@@ -109,14 +109,14 @@ var getUser = function (username, password, callback) {
  * Method used only by client_credentials grant type.
  */
 
-var getUserFromClient = function (clientId, clientSecret, callback) {
+let getUserFromClient = function (clientId, clientSecret, callback) {
 
-  var clients = config.confidentialClients.filter(function (client) {
+  let clients = config.confidentialClients.filter(function (client) {
 
     return client.clientId === clientId && client.clientSecret === clientSecret
   })
 
-  var user
+  let user
 
   if (clients.length) {
     user = {
diff --git a/test/mocha/core/curlify.js b/test/mocha/core/curlify.js
index 973a6b78..b492c804 100644
--- a/test/mocha/core/curlify.js
+++ b/test/mocha/core/curlify.js
@@ -6,7 +6,7 @@ import win from "core/window"
 describe("curlify", function () {
 
   it("prints a curl statement with custom content-type", function () {
-    var req = {
+    let req = {
       url: "http://example.com",
       method: "POST",
       body: {
@@ -26,7 +26,7 @@ describe("curlify", function () {
   })
 
   it("does add a empty data param if no request body given", function () {
-    var req = {
+    let req = {
       url: "http://example.com",
       method: "POST",
     }
@@ -37,7 +37,7 @@ describe("curlify", function () {
   })
 
   it("does not change the case of header in curl", function () {
-    var req = {
+    let req = {
       url: "http://example.com",
       method: "POST",
       headers: {
@@ -51,7 +51,7 @@ describe("curlify", function () {
   })
 
   it("prints a curl statement with an array of query params", function () {
-    var req = {
+    let req = {
       url: "http://swaggerhub.com/v1/one?name=john|smith",
       method: "GET"
     }
@@ -62,7 +62,7 @@ describe("curlify", function () {
   })
 
   it("prints a curl statement with an array of query params and auth", function () {
-    var req = {
+    let req = {
       url: "http://swaggerhub.com/v1/one?name=john|smith",
       method: "GET",
       headers: {
@@ -76,7 +76,7 @@ describe("curlify", function () {
   })
 
   it("prints a curl statement with html", function () {
-    var req = {
+    let req = {
       url: "http://swaggerhub.com/v1/one?name=john|smith",
       method: "GET",
       headers: {
@@ -93,7 +93,7 @@ describe("curlify", function () {
   })
 
   it("handles post body with html", function () {
-    var req = {
+    let req = {
       url: "http://swaggerhub.com/v1/one?name=john|smith",
       method: "POST",
       headers: {
@@ -110,7 +110,7 @@ describe("curlify", function () {
   })
 
   it("handles post body with special chars", function () {
-    var req = {
+    let req = {
       url: "http://swaggerhub.com/v1/one?name=john|smith",
       method: "POST",
       body: {
@@ -125,7 +125,7 @@ describe("curlify", function () {
   })
 
   it("handles delete form with parameters", function () {
-    var req = {
+    let req = {
       url: "http://example.com",
       method: "DELETE",
       headers: {
@@ -139,7 +139,7 @@ describe("curlify", function () {
   })
 
   it("should print a curl with formData", function () {
-    var req = {
+    let req = {
       url: "http://example.com",
       method: "POST",
       headers: { "content-type": "multipart/form-data" },
@@ -175,11 +175,11 @@ describe("curlify", function () {
   })
 
   it("should print a curl with formData and file", function () {
-    var file = new win.File()
+    let file = new win.File()
     file.name = "file.txt"
     file.type = "text/plain"
 
-    var req = {
+    let req = {
       url: "http://example.com",
       method: "POST",
       headers: { "content-type": "multipart/form-data" },
@@ -195,11 +195,11 @@ describe("curlify", function () {
   })
 
   it("should print a curl without form data type if type is unknown", function () {
-    var file = new win.File()
+    let file = new win.File()
     file.name = "file.txt"
     file.type = ""
 
-    var req = {
+    let req = {
       url: "http://example.com",
       method: "POST",
       headers: { "content-type": "multipart/form-data" },
@@ -215,7 +215,7 @@ describe("curlify", function () {
   })
 
   it("prints a curl post statement from an object", function () {
-    var req = {
+    let req = {
       url: "http://example.com",
       method: "POST",
       headers: {
@@ -232,7 +232,7 @@ describe("curlify", function () {
   })
 
   it("prints a curl post statement from a string containing a single quote", function () {
-    var req = {
+    let req = {
       url: "http://example.com",
       method: "POST",
       headers: {
diff --git a/test/mocha/core/plugins/samples/fn.js b/test/mocha/core/plugins/samples/fn.js
index 09a77dc7..496adafd 100644
--- a/test/mocha/core/plugins/samples/fn.js
+++ b/test/mocha/core/plugins/samples/fn.js
@@ -4,7 +4,7 @@ import expect from "expect"
 
 describe("sampleFromSchema", function() {
   it("handles Immutable.js objects for nested schemas", function () {
-    var definition = fromJS({
+    let definition = fromJS({
       "type": "object",
       "properties": {
         "json": {
@@ -21,7 +21,7 @@ describe("sampleFromSchema", function() {
       }
     })
 
-    var expected = {
+    let expected = {
       json: {
         a: "string"
       }
@@ -31,7 +31,7 @@ describe("sampleFromSchema", function() {
   })
 
   it("returns object with no readonly fields for parameter", function () {
-    var definition = {
+    let definition = {
       type: "object",
       properties: {
         id: {
@@ -47,7 +47,7 @@ describe("sampleFromSchema", function() {
       }
     }
 
-    var expected = {
+    let expected = {
       id: 0
     }
 
@@ -55,7 +55,7 @@ describe("sampleFromSchema", function() {
   })
 
   it("returns object with readonly fields for parameter, with includeReadOnly", function () {
-    var definition = {
+    let definition = {
       type: "object",
       properties: {
         id: {
@@ -71,7 +71,7 @@ describe("sampleFromSchema", function() {
       }
     }
 
-    var expected = {
+    let expected = {
       id: 0,
       readOnlyDog: "string"
     }
@@ -80,7 +80,7 @@ describe("sampleFromSchema", function() {
   })
 
   it("returns object without deprecated fields for parameter", function () {
-    var definition = {
+    let definition = {
       type: "object",
       properties: {
         id: {
@@ -96,7 +96,7 @@ describe("sampleFromSchema", function() {
       }
     }
 
-    var expected = {
+    let expected = {
       id: 0
     }
 
@@ -104,7 +104,7 @@ describe("sampleFromSchema", function() {
   })
 
   it("returns object without writeonly fields for parameter", function () {
-    var definition = {
+    let definition = {
       type: "object",
       properties: {
         id: {
@@ -120,7 +120,7 @@ describe("sampleFromSchema", function() {
       }
     }
 
-    var expected = {
+    let expected = {
       id: 0
     }
 
@@ -128,7 +128,7 @@ describe("sampleFromSchema", function() {
   })
 
   it("returns object with writeonly fields for parameter, with includeWriteOnly", function () {
-    var definition = {
+    let definition = {
       type: "object",
       properties: {
         id: {
@@ -144,7 +144,7 @@ describe("sampleFromSchema", function() {
       }
     }
 
-    var expected = {
+    let expected = {
       id: 0,
       writeOnlyDog: "string"
     }
@@ -153,7 +153,7 @@ describe("sampleFromSchema", function() {
   })
 
   it("returns object without any $$ref fields at the root schema level", function () {
-    var definition = {
+    let definition = {
     type: "object",
     properties: {
       message: {
@@ -169,7 +169,7 @@ describe("sampleFromSchema", function() {
     $$ref: "#/components/schemas/Welcome"
   }
 
-    var expected = {
+    let expected = {
       "value": {
         "message": "Hello, World!"
       }
@@ -179,7 +179,7 @@ describe("sampleFromSchema", function() {
   })
 
   it("returns object without any $$ref fields at nested schema levels", function () {
-    var definition = {
+    let definition = {
       type: "object",
       properties: {
         message: {
@@ -197,7 +197,7 @@ describe("sampleFromSchema", function() {
       $$ref: "#/components/schemas/Welcome"
     }
 
-    var expected = {
+    let expected = {
       a: {
         "value": {
           "message": "Hello, World!"
@@ -209,7 +209,7 @@ describe("sampleFromSchema", function() {
   })
 
   it("returns object with any $$ref fields that appear to be user-created", function () {
-    var definition = {
+    let definition = {
       type: "object",
       properties: {
         message: {
@@ -227,7 +227,7 @@ describe("sampleFromSchema", function() {
       $$ref: "#/components/schemas/Welcome"
     }
 
-    var expected = {
+    let expected = {
       $$ref: {
         "value": {
           "message": "Hello, World!"
@@ -239,7 +239,7 @@ describe("sampleFromSchema", function() {
   })
 
   it("returns example value for date-time property", function() {
-    var definition = {
+    let definition = {
       type: "string",
       format: "date-time"
     }
@@ -247,82 +247,82 @@ describe("sampleFromSchema", function() {
     // 0-20 chops off milliseconds
     // necessary because test latency can cause failures
     // it would be better to mock Date globally and expect a string - KS 11/18
-    var expected = new Date().toISOString().substring(0, 20)
+    let expected = new Date().toISOString().substring(0, 20)
 
     expect(sampleFromSchema(definition)).toInclude(expected)
   })
 
   it("returns example value for date property", function() {
-    var definition = {
+    let definition = {
       type: "string",
       format: "date"
     }
 
-    var expected = new Date().toISOString().substring(0, 10)
+    let expected = new Date().toISOString().substring(0, 10)
 
     expect(sampleFromSchema(definition)).toEqual(expected)
   })
 
   it("returns a UUID for a string with format=uuid", function() {
-    var definition = {
+    let definition = {
       type: "string",
       format: "uuid"
     }
 
-    var expected = "3fa85f64-5717-4562-b3fc-2c963f66afa6"
+    let expected = "3fa85f64-5717-4562-b3fc-2c963f66afa6"
 
     expect(sampleFromSchema(definition)).toEqual(expected)
   })
 
   it("returns a hostname for a string with format=hostname", function() {
-    var definition = {
+    let definition = {
       type: "string",
       format: "hostname"
     }
 
-    var expected = "example.com"
+    let expected = "example.com"
 
     expect(sampleFromSchema(definition)).toEqual(expected)
   })
 
   it("returns an IPv4 address for a string with format=ipv4", function() {
-    var definition = {
+    let definition = {
       type: "string",
       format: "ipv4"
     }
 
-    var expected = "198.51.100.42"
+    let expected = "198.51.100.42"
 
     expect(sampleFromSchema(definition)).toEqual(expected)
   })
 
   it("returns an IPv6 address for a string with format=ipv6", function() {
-    var definition = {
+    let definition = {
       type: "string",
       format: "ipv6"
     }
 
-    var expected = "2001:0db8:5b96:0000:0000:426f:8e17:642a"
+    let expected = "2001:0db8:5b96:0000:0000:426f:8e17:642a"
 
     expect(sampleFromSchema(definition)).toEqual(expected)
   })
 
   describe("for array type", function() {
     it("returns array with sample of array type", function() {
-      var definition = {
+      let definition = {
         type: "array",
         items: {
           type: "integer"
         }
       }
 
-      var expected = [ 0 ]
+      let expected = [ 0 ]
 
       expect(sampleFromSchema(definition)).toEqual(expected)
     })
 
     it("returns array of examples for array that has example", function() {
-      var definition = {
+      let definition = {
         type: "array",
         items: {
           type: "string"
@@ -330,13 +330,13 @@ describe("sampleFromSchema", function() {
         example: "dog"
       }
 
-      var expected = [ "dog" ]
+      let expected = [ "dog" ]
 
       expect(sampleFromSchema(definition)).toEqual(expected)
     })
 
     it("returns array of examples for array that has examples", function() {
-      var definition = {
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -344,13 +344,13 @@ describe("sampleFromSchema", function() {
         example: [ "dog", "cat" ]
       }
 
-      var expected = [ "dog", "cat" ]
+      let expected = [ "dog", "cat" ]
 
       expect(sampleFromSchema(definition)).toEqual(expected)
     })
 
     it("returns array of samples for oneOf type", function() {
-      var definition = {
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -362,13 +362,13 @@ describe("sampleFromSchema", function() {
         }
       }
 
-      var expected = [ 0 ]
+      let expected = [ 0 ]
 
       expect(sampleFromSchema(definition)).toEqual(expected)
     })
 
     it("returns array of samples for oneOf types", function() {
-      var definition = {
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -383,13 +383,13 @@ describe("sampleFromSchema", function() {
         }
       }
 
-      var expected = [ "string", 0 ]
+      let expected = [ "string", 0 ]
 
       expect(sampleFromSchema(definition)).toEqual(expected)
     })
 
     it("returns array of samples for oneOf examples", function() {
-      var definition = {
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -406,13 +406,13 @@ describe("sampleFromSchema", function() {
         }
       }
 
-      var expected = [ "dog", 1 ]
+      let expected = [ "dog", 1 ]
 
       expect(sampleFromSchema(definition)).toEqual(expected)
     })
 
     it("returns array of samples for anyOf type", function() {
-      var definition = {
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -424,13 +424,13 @@ describe("sampleFromSchema", function() {
         }
       }
 
-      var expected = [ 0 ]
+      let expected = [ 0 ]
 
       expect(sampleFromSchema(definition)).toEqual(expected)
     })
 
     it("returns array of samples for anyOf types", function() {
-      var definition = {
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -445,13 +445,13 @@ describe("sampleFromSchema", function() {
         }
       }
 
-      var expected = [ "string", 0 ]
+      let expected = [ "string", 0 ]
 
       expect(sampleFromSchema(definition)).toEqual(expected)
     })
 
     it("returns array of samples for anyOf examples", function() {
-      var definition = {
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -468,13 +468,13 @@ describe("sampleFromSchema", function() {
         }
       }
 
-      var expected = [ "dog", 1 ]
+      let expected = [ "dog", 1 ]
 
       expect(sampleFromSchema(definition)).toEqual(expected)
     })
 
     it("returns null for a null example", function() {
-      var definition = {
+      let definition = {
         "type": "object",
         "properties": {
           "foo": {
@@ -485,7 +485,7 @@ describe("sampleFromSchema", function() {
         }
       }
 
-      var expected = {
+      let expected = {
         foo: null
       }
 
@@ -493,7 +493,7 @@ describe("sampleFromSchema", function() {
     })
 
     it("returns null for a null object-level example", function() {
-      var definition = {
+      let definition = {
         "type": "object",
         "properties": {
           "foo": {
@@ -506,7 +506,7 @@ describe("sampleFromSchema", function() {
         }
       }
 
-      var expected = {
+      let expected = {
         foo: null
       }
 
@@ -516,10 +516,10 @@ describe("sampleFromSchema", function() {
 })
 
 describe("createXMLExample", function () {
-  var sut = createXMLExample
+  let sut = createXMLExample
   describe("simple types with xml property", function () {
     it("returns tag <newtagname>string</newtagname> when passing type string and xml:{name: \"newtagname\"}", function () {
-      var definition = {
+      let definition = {
         type: "string",
         xml: {
           name: "newtagname"
@@ -530,7 +530,7 @@ describe("createXMLExample", function () {
     })
 
     it("returns tag <test:newtagname>string</test:newtagname> when passing type string and xml:{name: \"newtagname\", prefix:\"test\"}", function () {
-      var definition = {
+      let definition = {
         type: "string",
         xml: {
           name: "newtagname",
@@ -542,7 +542,7 @@ describe("createXMLExample", function () {
     })
 
     it("returns tag <test:tagname xmlns:sample=\"http://swagger.io/schema/sample\">string</test:tagname> when passing type string and xml:{\"namespace\": \"http://swagger.io/schema/sample\", \"prefix\": \"sample\"}", function () {
-      var definition = {
+      let definition = {
         type: "string",
         xml: {
           namespace: "http://swagger.io/schema/sample",
@@ -555,7 +555,7 @@ describe("createXMLExample", function () {
     })
 
     it("returns tag <test:tagname >string</test:tagname> when passing type string and xml:{\"namespace\": \"http://swagger.io/schema/sample\"}", function () {
-      var definition = {
+      let definition = {
         type: "string",
         xml: {
           namespace: "http://swagger.io/schema/sample",
@@ -567,8 +567,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns tag <newtagname>test</newtagname> when passing default value", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<newtagname>test</newtagname>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<newtagname>test</newtagname>"
+      let definition = {
         type: "string",
         "default": "test",
         xml: {
@@ -580,8 +580,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns default value when enum provided", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<newtagname>one</newtagname>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<newtagname>one</newtagname>"
+      let definition = {
         type: "string",
         "default": "one",
         "enum": ["two", "one"],
@@ -594,8 +594,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns example value when provided", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<newtagname>two</newtagname>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<newtagname>two</newtagname>"
+      let definition = {
         type: "string",
         "default": "one",
         "example": "two",
@@ -609,8 +609,8 @@ describe("createXMLExample", function () {
     })
 
     it("sets first enum if provided", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<newtagname>one</newtagname>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<newtagname>one</newtagname>"
+      let definition = {
         type: "string",
         "enum": ["one", "two"],
         xml: {
@@ -624,8 +624,8 @@ describe("createXMLExample", function () {
 
   describe("array", function () {
     it("returns tag <tagname>string</tagname> when passing string items", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<tagname>string</tagname>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<tagname>string</tagname>"
+      let definition = {
         type: "array",
         items: {
           type: "string"
@@ -639,8 +639,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns tag <animal>string</animal> when passing string items with name", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animal>string</animal>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animal>string</animal>"
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -657,8 +657,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns tag <animals><animal>string</animal></animals> when passing string items with name", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>string</animal>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>string</animal>\n</animals>"
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -676,8 +676,8 @@ describe("createXMLExample", function () {
     })
 
     it("return correct nested wrapped array", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<aliens>\n\t<dog>string</dog>\n</aliens>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<aliens>\n\t<dog>string</dog>\n</aliens>"
+      let definition = {
         type: "array",
         items: {
           type: "array",
@@ -698,8 +698,8 @@ describe("createXMLExample", function () {
     })
 
     it("return correct nested wrapped array with xml", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<aliens>\n\t<dogs>\n\t\t<dog>string</dog>\n\t</dogs>\n</aliens>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<aliens>\n\t<dogs>\n\t\t<dog>string</dog>\n\t</dogs>\n</aliens>"
+      let definition = {
         type: "array",
         items: {
           type: "array",
@@ -724,8 +724,8 @@ describe("createXMLExample", function () {
     })
 
     it("adds namespace to array", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<dog xmlns=\"test\">string</dog>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<dog xmlns=\"test\">string</dog>"
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -744,8 +744,8 @@ describe("createXMLExample", function () {
     })
 
     it("adds prefix to array", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<test:dog>string</test:dog>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<test:dog>string</test:dog>"
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -764,8 +764,8 @@ describe("createXMLExample", function () {
     })
 
     it("adds prefix to array with no xml in items", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<test:dog>string</test:dog>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<test:dog>string</test:dog>"
+      let definition = {
         type: "array",
         items: {
           type: "string"
@@ -780,8 +780,8 @@ describe("createXMLExample", function () {
     })
 
     it("adds namespace to array with no xml in items", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<dog xmlns=\"test\">string</dog>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<dog xmlns=\"test\">string</dog>"
+      let definition = {
         type: "array",
         items: {
           type: "string"
@@ -796,8 +796,8 @@ describe("createXMLExample", function () {
     })
 
     it("adds namespace to array with wrapped", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<aliens xmlns=\"test\">\n\t<dog>string</dog>\n</aliens>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<aliens xmlns=\"test\">\n\t<dog>string</dog>\n</aliens>"
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -816,8 +816,8 @@ describe("createXMLExample", function () {
     })
 
     it("adds prefix to array with wrapped", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<test:aliens>\n\t<dog>string</dog>\n</test:aliens>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<test:aliens>\n\t<dog>string</dog>\n</test:aliens>"
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -836,8 +836,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns wrapped array when type is not passed", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>string</animal>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>string</animal>\n</animals>"
+      let definition = {
         items: {
           type: "string",
           xml: {
@@ -854,8 +854,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns array with default values", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animal>one</animal>\n<animal>two</animal>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animal>one</animal>\n<animal>two</animal>"
+      let definition = {
         items: {
           type: "string",
           xml: {
@@ -872,8 +872,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns array with default values with wrapped=true", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>one</animal>\n\t<animal>two</animal>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>one</animal>\n\t<animal>two</animal>\n</animals>"
+      let definition = {
         items: {
           type: "string",
           xml: {
@@ -891,8 +891,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns array with default values", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animal>one</animal>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animal>one</animal>"
+      let definition = {
         items: {
           type: "string",
           "enum": ["one", "two"],
@@ -909,8 +909,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns array with default values with wrapped=true", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>1</animal>\n\t<animal>2</animal>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>1</animal>\n\t<animal>2</animal>\n</animals>"
+      let definition = {
         items: {
           "enum": ["one", "two"],
           type: "string",
@@ -929,8 +929,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns array with example values  with ", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>1</animal>\n\t<animal>2</animal>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>1</animal>\n\t<animal>2</animal>\n</animals>"
+      let definition = {
         type: "object",
         properties: {
           "animal": {
@@ -953,8 +953,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns array with example values  with wrapped=true", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>1</animal>\n\t<animal>2</animal>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<animal>1</animal>\n\t<animal>2</animal>\n</animals>"
+      let definition = {
         type: "array",
         items: {
           type: "string",
@@ -973,8 +973,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns array of objects with example values  with wrapped=true", function () {
-      var expected = `<?xml version="1.0" encoding="UTF-8"?>\n<users>\n\t<user>\n\t\t<id>1</id>\n\t\t<name>Arthur Dent</name>\n\t</user>\n\t<user>\n\t\t<id>2</id>\n\t\t<name>Ford Prefect</name>\n\t</user>\n</users>`
-      var definition = {
+      let expected = `<?xml version="1.0" encoding="UTF-8"?>\n<users>\n\t<user>\n\t\t<id>1</id>\n\t\t<name>Arthur Dent</name>\n\t</user>\n\t<user>\n\t\t<id>2</id>\n\t\t<name>Ford Prefect</name>\n\t</user>\n</users>`
+      let definition = {
         "type": "array",
         "items": {
           "type": "object",
@@ -1013,8 +1013,8 @@ describe("createXMLExample", function () {
 
   describe("object", function () {
     it("returns object with 2 properties", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<aliens>\n\t<alien>string</alien>\n\t<dog>0</dog>\n</aliens>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<aliens>\n\t<alien>string</alien>\n\t<dog>0</dog>\n</aliens>"
+      let definition = {
         type: "object",
         properties: {
           alien: {
@@ -1033,8 +1033,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with integer property and array property", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<aliens>string</aliens>\n\t<dog>0</dog>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<aliens>string</aliens>\n\t<dog>0</dog>\n</animals>"
+      let definition = {
         type: "object",
         properties: {
           aliens: {
@@ -1056,8 +1056,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns nested objects", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<aliens>\n\t\t<alien>string</alien>\n\t</aliens>\n\t<dog>string</dog>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<aliens>\n\t\t<alien>string</alien>\n\t</aliens>\n\t<dog>string</dog>\n</animals>"
+      let definition = {
         type: "object",
         properties: {
           aliens: {
@@ -1084,8 +1084,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with no readonly fields for parameter", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<id>0</id>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<id>0</id>\n</animals>"
+      let definition = {
         type: "object",
         properties: {
           id: {
@@ -1105,8 +1105,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with readonly fields for parameter, with includeReadOnly", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<id>0</id>\n\t<dog>string</dog>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<id>0</id>\n\t<dog>string</dog>\n</animals>"
+      let definition = {
         type: "object",
         properties: {
           id: {
@@ -1126,8 +1126,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object without writeonly fields for parameter", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<id>0</id>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<id>0</id>\n</animals>"
+      let definition = {
         type: "object",
         properties: {
           id: {
@@ -1147,8 +1147,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with writeonly fields for parameter, with includeWriteOnly", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<id>0</id>\n\t<dog>string</dog>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<id>0</id>\n\t<dog>string</dog>\n</animals>"
+      let definition = {
         type: "object",
         properties: {
           id: {
@@ -1168,8 +1168,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with passed property as attribute", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals id=\"0\">\n\t<dog>string</dog>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals id=\"0\">\n\t<dog>string</dog>\n</animals>"
+      let definition = {
         type: "object",
         properties: {
           id: {
@@ -1191,8 +1191,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with passed property as attribute with custom name", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals test=\"0\">\n\t<dog>string</dog>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals test=\"0\">\n\t<dog>string</dog>\n</animals>"
+      let definition = {
         type: "object",
         properties: {
           id: {
@@ -1215,8 +1215,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with example values in attribute", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<user id=\"42\">\n\t<role>admin</role>\n</user>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<user id=\"42\">\n\t<role>admin</role>\n</user>"
+      let definition = {
         type: "object",
         properties: {
           id: {
@@ -1242,8 +1242,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with enum values in attribute", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<user id=\"one\">\n\t<role>string</role>\n</user>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<user id=\"one\">\n\t<role>string</role>\n</user>"
+      let definition = {
         type: "object",
         properties: {
           id: {
@@ -1266,8 +1266,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with default values in attribute", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<user id=\"one\">\n\t<role>string</role>\n</user>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<user id=\"one\">\n\t<role>string</role>\n</user>"
+      let definition = {
         type: "object",
         properties: {
           id: {
@@ -1290,8 +1290,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with default values in attribute", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<user id=\"one\">\n\t<role>string</role>\n</user>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<user id=\"one\">\n\t<role>string</role>\n</user>"
+      let definition = {
         type: "object",
         properties: {
           id: {
@@ -1314,8 +1314,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with example value", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<user>\n\t<id>42</id>\n\t<role>admin</role>\n</user>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<user>\n\t<id>42</id>\n\t<role>admin</role>\n</user>"
+      let definition = {
         type: "object",
         properties: {
           id: {
@@ -1338,8 +1338,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with additional props", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<dog>string</dog>\n\t<additionalProp>string</additionalProp>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<dog>string</dog>\n\t<additionalProp>string</additionalProp>\n</animals>"
+      let definition = {
         type: "object",
         properties: {
           dog: {
@@ -1358,8 +1358,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with additional props =true", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<dog>string</dog>\n\t<additionalProp>Anything can be here</additionalProp>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<dog>string</dog>\n\t<additionalProp>Anything can be here</additionalProp>\n</animals>"
+      let definition = {
         type: "object",
         properties: {
           dog: {
@@ -1376,8 +1376,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with 2 properties with no type passed but properties", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<aliens>\n\t<alien>string</alien>\n\t<dog>0</dog>\n</aliens>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<aliens>\n\t<alien>string</alien>\n\t<dog>0</dog>\n</aliens>"
+      let definition = {
         properties: {
           alien: {
             type: "string"
@@ -1395,8 +1395,8 @@ describe("createXMLExample", function () {
     })
 
     it("returns object with additional props with no type passed", function () {
-      var expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<additionalProp>string</additionalProp>\n</animals>"
-      var definition = {
+      let expected = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animals>\n\t<additionalProp>string</additionalProp>\n</animals>"
+      let definition = {
         additionalProperties: {
           type: "string"
         },
diff --git a/test/mocha/core/system/system.jsx b/test/mocha/core/system/system.jsx
index 75912b92..9837a328 100644
--- a/test/mocha/core/system/system.jsx
+++ b/test/mocha/core/system/system.jsx
@@ -34,7 +34,7 @@ describe("bound system", function(){
       })
 
       // When
-      var action = system.getSystem().joshActions.simple(1)
+      let action = system.getSystem().joshActions.simple(1)
       expect(action).toEqual({
         type: "newSimple"
       })
@@ -65,7 +65,7 @@ describe("bound system", function(){
       })
 
       // When
-      var action = system.getSystem().joshActions.simple(1)
+      let action = system.getSystem().joshActions.simple(1)
       expect(action).toEqual({
         type: "newSimple",
         oriActionResult: { type: "simple" },
@@ -123,7 +123,7 @@ describe("bound system", function(){
       })
 
       // When
-      var action = system.getSystem().kyleActions.simple(1)
+      let action = system.getSystem().kyleActions.simple(1)
       expect(action).toEqual({
         type: "simple",
         firstWrap: true,
@@ -178,7 +178,7 @@ describe("bound system", function(){
       })
 
       // When
-      var action = system.getSystem().kyleActions.simple(1)
+      let action = system.getSystem().kyleActions.simple(1)
       expect(action.type).toEqual("one-two-three")
 
     })
@@ -257,7 +257,7 @@ describe("bound system", function(){
       })
 
       // When
-      var action = system.getSystem().kyleActions.simple(1)
+      let action = system.getSystem().kyleActions.simple(1)
       expect(action.type).toEqual("called")
 
     })
@@ -307,7 +307,7 @@ describe("bound system", function(){
       })
 
       // When
-      var res = system.getSystem().joshSelectors.simple(1)
+      let res = system.getSystem().joshSelectors.simple(1)
       expect(res).toEqual({
         state: fromJS({
           one: 1
@@ -340,7 +340,7 @@ describe("bound system", function(){
         })
 
         // When
-        var res = system.getSystem().joshSelectors.advanced(1)
+        let res = system.getSystem().joshSelectors.advanced(1)
         expect(res).toEqual("hi")
 
       })
@@ -380,7 +380,7 @@ describe("bound system", function(){
         })
 
         // When
-        var res = system.getSystem().dogeSelectors.wow(1)
+        let res = system.getSystem().dogeSelectors.wow(1)
         expect(res).toEqual("original wrapper")
 
       })
@@ -479,7 +479,7 @@ describe("bound system", function(){
       })
 
       // When
-      var Component = system.getSystem().getComponent("test")
+      let Component = system.getSystem().getComponent("test")
       const renderedComponent = render(<Component name="Test" />)
       expect(renderedComponent.text()).toEqual("Test component")
     })
@@ -525,7 +525,7 @@ describe("bound system", function(){
       })
 
       // When
-      var Component = system.getSystem().getComponent("ContainerComponent", true)
+      let Component = system.getSystem().getComponent("ContainerComponent", true)
       const renderedComponent = render(
         <Provider store={system.getStore()}>
           <Component fromOwnProps="and this came from my own props" />
@@ -578,7 +578,7 @@ describe("bound system", function(){
       })
 
       // When
-      var Component = system.getSystem().getComponent("ContainerComponent", true)
+      let Component = system.getSystem().getComponent("ContainerComponent", true)
       const renderedComponent = render(
         <Provider store={system.getStore()}>
           <Component fromOwnProps="and this came from my own props" />
@@ -613,7 +613,7 @@ describe("bound system", function(){
       })
 
       // When
-      var res = system.getSystem().wow()
+      let res = system.getSystem().wow()
       expect(res).toEqual("so selective")
     })
     it("should call a preset plugin's `afterLoad` method after the plugin is loaded", function() {
@@ -640,7 +640,7 @@ describe("bound system", function(){
       })
 
       // When
-      var res = system.getSystem().wow()
+      let res = system.getSystem().wow()
       expect(res).toEqual("so selective")
     })
     it("should call a function preset plugin's `afterLoad` method after the plugin is loaded", function() {
@@ -669,7 +669,7 @@ describe("bound system", function(){
       })
 
       // When
-      var res = system.getSystem().wow()
+      let res = system.getSystem().wow()
       expect(res).toEqual("so selective")
     })
     it("should call a registered plugin's `afterLoad` method after the plugin is loaded", function() {
@@ -696,7 +696,7 @@ describe("bound system", function(){
       system.register([MyPlugin])
 
       // When
-      var res = system.getSystem().wow()
+      let res = system.getSystem().wow()
       expect(res).toEqual("so selective")
     })
   })
@@ -726,7 +726,7 @@ describe("bound system", function(){
       })
 
       // When
-      var res = system.getSystem().wow()
+      let res = system.getSystem().wow()
       expect(res).toEqual("so selective")
     })
   })
@@ -757,7 +757,7 @@ describe("bound system", function(){
       // When
       expect(function() {
         system.register([ThrowyPlugin])
-        // var resSystem = system.getSystem()
+        // let resSystem = system.getSystem()
       }).toNotThrow()
     })
 
@@ -934,7 +934,7 @@ describe("bound system", function(){
         })
 
         // When
-        var Component = system.getSystem().getComponent("BrokenComponent")
+        let Component = system.getSystem().getComponent("BrokenComponent")
         const renderedComponent = render(<Component />)
 
         // Then
@@ -962,7 +962,7 @@ describe("bound system", function(){
         })
 
         // When
-        var Component = system.getSystem().getComponent("BrokenComponent")
+        let Component = system.getSystem().getComponent("BrokenComponent")
         const renderedComponent = render(<Component />)
 
         // Then
@@ -985,7 +985,7 @@ describe("bound system", function(){
         })
 
         // When
-        var Component = system.getSystem().getComponent("BrokenComponent")
+        let Component = system.getSystem().getComponent("BrokenComponent")
         const renderedComponent = render(<Component />)
 
         // Then
@@ -1013,7 +1013,7 @@ describe("bound system", function(){
         })
 
         // When
-        var Component = system.getSystem().getComponent("BrokenComponent", true)
+        let Component = system.getSystem().getComponent("BrokenComponent", true)
         const renderedComponent = render(
           <Provider store={system.getStore()}>
             <Component />
diff --git a/test/mocha/core/system/wrapComponent.jsx b/test/mocha/core/system/wrapComponent.jsx
index 47257081..f051a819 100644
--- a/test/mocha/core/system/wrapComponent.jsx
+++ b/test/mocha/core/system/wrapComponent.jsx
@@ -28,7 +28,7 @@ describe("wrapComponents", () => {
       })
 
       // When
-      var Component = system.getSystem().getComponents("wow")
+      let Component = system.getSystem().getComponents("wow")
       const wrapper = render(<Component name="Normal" />)
 
       const container = wrapper.children().first()
@@ -73,7 +73,7 @@ describe("wrapComponents", () => {
       })
 
       // When
-      var Component = system.getSystem().getComponents("wow")
+      let Component = system.getSystem().getComponents("wow")
       const wrapper = render(<Component name="Normal" />)
 
       const container = wrapper.children().first()
@@ -125,7 +125,7 @@ describe("wrapComponents", () => {
     })
 
     // Then
-    var Component = mySystem.getSystem().getComponents("wow")
+    let Component = mySystem.getSystem().getComponents("wow")
     const wrapper = render(<Component name="Normal" />)
 
     const container = wrapper.children().first()
@@ -179,7 +179,7 @@ describe("wrapComponents", () => {
     ])
 
     // Then
-    var Component = mySystem.getSystem().getComponents("wow")
+    let Component = mySystem.getSystem().getComponents("wow")
     const wrapper = render(<Component name="Normal" />)
 
     const container = wrapper.children().first()
@@ -233,7 +233,7 @@ describe("wrapComponents", () => {
     })
 
     // Then
-    var Component = secondSystem.getSystem().getComponents("wow")
+    let Component = secondSystem.getSystem().getComponents("wow")
     const wrapper = render(<Component name="Normal" />)
 
     const container = wrapper.children().first()