Add Map polyfill for rspec tests using phantomjs

app/assets/javascripts/test_utils/index.js

+import 'es6-map/implement';
 import simulateDrag from './simulate_drag';
 // Export to global space for rspec to use

package.json

@@ -28,6 +28,7 @@
     "document-register-element": "^1.3.0",
     "dropzone": "^4.2.0",
     "emoji-unicode-version": "^0.2.1",
+    "es6-map": "^0.1.5",
     "eslint-plugin-html": "^2.0.1",
     "exports-loader": "^0.6.4",
     "file-loader": "^0.11.1",

yarn.lock

@@ -1534,6 +1534,12 @@ d3@^3.5.11:
   version "3.5.11"
   resolved "https://registry.yarnpkg.com/d3/-/d3-3.5.11.tgz#d130750eed0554db70e8432102f920a12407b69c"
+d@1:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
+  dependencies:
+    es5-ext "^0.10.9"
+
 d@^0.1.1, d@~0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/d/-/d-0.1.1.tgz#da184c535d18d8ee7ba2aa229b914009fae11309"
@@ -1866,6 +1872,13 @@ error-ex@^1.2.0:
   dependencies:
     is-arrayish "^0.2.1"
+es5-ext@^0.10.14, es5-ext@^0.10.9, es5-ext@~0.10.14:
+  version "0.10.24"
+  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.24.tgz#a55877c9924bc0c8d9bd3c2cbe17495ac1709b14"
+  dependencies:
+    es6-iterator "2"
+    es6-symbol "~3.1"
+
 es5-ext@^0.10.7, es5-ext@^0.10.8, es5-ext@~0.10.11, es5-ext@~0.10.2, es5-ext@~0.10.7:
   version "0.10.12"
   resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.12.tgz#aa84641d4db76b62abba5e45fd805ecbab140047"
@@ -1881,6 +1894,14 @@ es6-iterator@2:
     es5-ext "^0.10.7"
     es6-symbol "3"
+es6-iterator@~2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.1.tgz#8e319c9f0453bf575d374940a655920e59ca5512"
+  dependencies:
+    d "1"
+    es5-ext "^0.10.14"
+    es6-symbol "^3.1"
+
 es6-map@^0.1.3:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.4.tgz#a34b147be224773a4d7da8072794cefa3632b897"
@@ -1892,6 +1913,17 @@ es6-map@^0.1.3:
     es6-symbol "~3.1.0"
     event-emitter "~0.3.4"
+es6-map@^0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.5.tgz#9136e0503dcc06a301690f0bb14ff4e364e949f0"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+    es6-iterator "~2.0.1"
+    es6-set "~0.1.5"
+    es6-symbol "~3.1.1"
+    event-emitter "~0.3.5"
+
 es6-promise@^3.0.2, es6-promise@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-3.0.2.tgz#010d5858423a5f118979665f46486a95c6ee2bb6"
@@ -1906,6 +1938,16 @@ es6-set@~0.1.3:
     es6-symbol "3"
     event-emitter "~0.3.4"
+es6-set@~0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+    es6-iterator "~2.0.1"
+    es6-symbol "3.1.1"
+    event-emitter "~0.3.5"
+
 es6-symbol@3, es6-symbol@~3.1, es6-symbol@~3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.0.tgz#94481c655e7a7cad82eba832d97d5433496d7ffa"
@@ -1913,6 +1955,13 @@ es6-symbol@3, es6-symbol@~3.1, es6-symbol@~3.1.0:
     d "~0.1.1"
     es5-ext "~0.10.11"
+es6-symbol@3.1.1, es6-symbol@^3.1, es6-symbol@~3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+
 es6-weak-map@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.1.tgz#0d2bbd8827eb5fb4ba8f97fbfea50d43db21ea81"
@@ -2114,6 +2163,13 @@ event-emitter@~0.3.4:
     d "~0.1.1"
     es5-ext "~0.10.7"
+event-emitter@~0.3.5:
+  version "0.3.5"
+  resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+
 event-stream@~3.3.0:
   version "3.3.4"
   resolved "https://registry.yarnpkg.com/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"