diff --git a/.babelrc b/.babelrc
index c53c1d0c..4a8122d5 100644
--- a/.babelrc
+++ b/.babelrc
@@ -8,14 +8,15 @@
     "react"
   ],
   "env": {
-    "commonjs": {
+    "test": {
       "presets": [
         "env",
         "stage-1",
         "react"
       ],
       "plugins": [
-        "transform-decorators-legacy"
+        "transform-decorators-legacy",
+        "istanbul"
       ]
     }
   }
diff --git a/karma.conf.js b/karma.conf.js
index 090e9221..8d94e486 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -1,11 +1,6 @@
 const path = require('path');
 
-// Note: If we switch to ESM version of babelified files, we'll likely need to
-// update from the ancient isparta-loader. Likely we'll switch to:
-// https://github.com/istanbuljs/babel-plugin-istanbul with a `test` BABEL_ENV
-//
-// https://github.com/FormidableLabs/radium/issues/969
-process.env.BABEL_ENV = 'commonjs';
+process.env.BABEL_ENV = 'test';
 
 module.exports = function(config) {
   config.set({
@@ -34,13 +29,6 @@ module.exports = function(config) {
             include: path.resolve('src/__tests__/'),
             loader: 'babel-loader'
           },
-          {
-            test: /\.js$/,
-            include: path.resolve('src/'),
-            enforce: 'pre',
-            exclude: /(__tests__|__mocks__)/,
-            loader: 'isparta-loader?babel-loader'
-          },
           {
             test: /\.js$/,
             exclude: [/node_modules/],
diff --git a/package.json b/package.json
index 938f0f18..11f8da3b 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "version-dry-run": "publishr dry-run -V",
     "build": "npm run clean && builder concurrent --buffer build-lib build-dist build-es",
     "build-babel": "babel src --ignore \"/__tests__/,/__mocks__/\"",
-    "build-lib": "builder run --env \"{\\\"BABEL_ENV\\\":\\\"commonjs\\\"}\" build-babel -- -d lib",
+    "build-lib": "builder run --env \"{\\\"BABEL_ENV\\\":\\\"test\\\"}\" build-babel -- -d lib",
     "build-dist-dev": "webpack",
     "build-dist-prod": "webpack --config=webpack.config.minified.js",
     "build-dist": "builder concurrent --buffer build-dist-dev build-dist-prod",
@@ -37,7 +37,7 @@
     "eslint": "eslint .",
     "fixlint": "npm run eslint -- --fix",
     "lint": "builder concurrent --buffer eslint flow",
-    "start": "builder run --env \"{\\\"BABEL_ENV\\\":\\\"commonjs\\\"}\" examples-server",
+    "start": "builder run --env \"{\\\"BABEL_ENV\\\":\\\"test\\\"}\" examples-server",
     "test-node": "mocha \"test/**/*-test.js\"",
     "test-node-dev": "mocha --watch \"test/**/*-test.js\"",
     "test-frontend": "karma start",
@@ -74,6 +74,7 @@
   },
   "devDependencies": {
     "babel-eslint": "^7.1.1",
+    "babel-plugin-istanbul": "^5.1.0",
     "caniuse-api": "^2.0.0",
     "chai": "^3.5.0",
     "color": "^1.0.3",
@@ -89,7 +90,6 @@
     "express-http-proxy": "^0.11.0",
     "flow-bin": "^0.53.1",
     "inject-loader": "^3.0.1",
-    "isparta-loader": "^2.0.0",
     "jsdom": "^12.0.0",
     "jsdom-global": "^3.0.2",
     "karma": "^3.0.0",
diff --git a/yarn.lock b/yarn.lock
index 427bd358..a7b47f9f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,94 @@
 # yarn lockfile v1
 
 
+"@babel/code-frame@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0.tgz#06e2ab19bdb535385559aabb5ba59729482800f8"
+  integrity sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==
+  dependencies:
+    "@babel/highlight" "^7.0.0"
+
+"@babel/generator@^7.0.0", "@babel/generator@^7.1.6":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.2.0.tgz#eaf3821fa0301d9d4aef88e63d4bcc19b73ba16c"
+  integrity sha512-BA75MVfRlFQG2EZgFYIwyT1r6xSkwfP2bdkY/kLZusEYWiJs4xCowab/alaEaT0wSvmVuXGqiefeBlP+7V1yKg==
+  dependencies:
+    "@babel/types" "^7.2.0"
+    jsesc "^2.5.1"
+    lodash "^4.17.10"
+    source-map "^0.5.0"
+    trim-right "^1.0.1"
+
+"@babel/helper-function-name@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.1.0.tgz#a0ceb01685f73355d4360c1247f582bfafc8ff53"
+  integrity sha512-A95XEoCpb3TO+KZzJ4S/5uW5fNe26DjBGqf1o9ucyLyCmi1dXq/B3c8iaWTfBk3VvetUxl16e8tIrd5teOCfGw==
+  dependencies:
+    "@babel/helper-get-function-arity" "^7.0.0"
+    "@babel/template" "^7.1.0"
+    "@babel/types" "^7.0.0"
+
+"@babel/helper-get-function-arity@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0.tgz#83572d4320e2a4657263734113c42868b64e49c3"
+  integrity sha512-r2DbJeg4svYvt3HOS74U4eWKsUAMRH01Z1ds1zx8KNTPtpTL5JAsdFv8BNyOpVqdFhHkkRDIg5B4AsxmkjAlmQ==
+  dependencies:
+    "@babel/types" "^7.0.0"
+
+"@babel/helper-split-export-declaration@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.0.0.tgz#3aae285c0311c2ab095d997b8c9a94cad547d813"
+  integrity sha512-MXkOJqva62dfC0w85mEf/LucPPS/1+04nmmRMPEBUB++hiiThQ2zPtX/mEWQ3mtzCEjIJvPY8nuwxXtQeQwUag==
+  dependencies:
+    "@babel/types" "^7.0.0"
+
+"@babel/highlight@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.0.0.tgz#f710c38c8d458e6dd9a201afb637fcb781ce99e4"
+  integrity sha512-UFMC4ZeFC48Tpvj7C8UgLvtkaUuovQX+5xNWrsIoMG8o2z+XFKjKaN9iVmS84dPwVN00W4wPmqvYoZF3EGAsfw==
+  dependencies:
+    chalk "^2.0.0"
+    esutils "^2.0.2"
+    js-tokens "^4.0.0"
+
+"@babel/parser@^7.0.0", "@babel/parser@^7.1.2", "@babel/parser@^7.1.6":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.2.0.tgz#02d01dbc330b6cbf36b76ac93c50752c69027065"
+  integrity sha512-M74+GvK4hn1eejD9lZ7967qAwvqTZayQa3g10ag4s9uewgR7TKjeaT0YMyoq+gVfKYABiWZ4MQD701/t5e1Jhg==
+
+"@babel/template@^7.0.0", "@babel/template@^7.1.0":
+  version "7.1.2"
+  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.1.2.tgz#090484a574fef5a2d2d7726a674eceda5c5b5644"
+  integrity sha512-SY1MmplssORfFiLDcOETrW7fCLl+PavlwMh92rrGcikQaRq4iWPVH0MpwPpY3etVMx6RnDjXtr6VZYr/IbP/Ag==
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    "@babel/parser" "^7.1.2"
+    "@babel/types" "^7.1.2"
+
+"@babel/traverse@^7.0.0":
+  version "7.1.6"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.1.6.tgz#c8db9963ab4ce5b894222435482bd8ea854b7b5c"
+  integrity sha512-CXedit6GpISz3sC2k2FsGCUpOhUqKdyL0lqNrImQojagnUMXf8hex4AxYFRuMkNGcvJX5QAFGzB5WJQmSv8SiQ==
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    "@babel/generator" "^7.1.6"
+    "@babel/helper-function-name" "^7.1.0"
+    "@babel/helper-split-export-declaration" "^7.0.0"
+    "@babel/parser" "^7.1.6"
+    "@babel/types" "^7.1.6"
+    debug "^4.1.0"
+    globals "^11.1.0"
+    lodash "^4.17.10"
+
+"@babel/types@^7.0.0", "@babel/types@^7.1.2", "@babel/types@^7.1.6", "@babel/types@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.2.0.tgz#7941c5b2d8060e06f9601d6be7c223eef906d5d8"
+  integrity sha512-b4v7dyfApuKDvmPb+O488UlGuR1WbwMXFsO/cyqMrnfvRAChZKJAYeeglWTjUO1b9UghKKgepAQM5tsvBJca6A==
+  dependencies:
+    esutils "^2.0.2"
+    lodash "^4.17.10"
+    to-fast-properties "^2.0.0"
+
 "@types/node@*":
   version "10.9.4"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-10.9.4.tgz#0f4cb2dc7c1de6096055357f70179043c33e9897"
@@ -146,18 +234,13 @@ ansi-styles@^2.2.1:
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
   integrity sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=
 
-ansi-styles@^3.0.0:
+ansi-styles@^3.0.0, ansi-styles@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
   integrity sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==
   dependencies:
     color-convert "^1.9.0"
 
-ansi-styles@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-1.0.0.tgz#cb102df1c56f5123eab8b67cd7b98027a0279178"
-  integrity sha1-yxAt8cVvUSPquLZ817mAJ6AnkXg=
-
 anymatch@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.0.tgz#a3e52fa39168c825ff57b0248126ce5a8ff95507"
@@ -298,7 +381,7 @@ arraybuffer.slice@~0.0.7:
   resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz#3bbc4275dd584cc1b10809b89d4e8b63a69e7675"
   integrity sha512-wGUIVQXuehL5TCqQun8OW81jGzAWycqzFF8lFp+GOM5BXLYj3bKNsYC4daB7n6XjCqxQA/qgTJ+8ANR3acjrog==
 
-arrify@^1.0.0:
+arrify@^1.0.0, arrify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/arrify/-/arrify-1.0.1.tgz#898508da2226f380df904728456849c1501a4b0d"
   integrity sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=
@@ -456,7 +539,7 @@ babel-code-frame@^6.26.0:
     esutils "^2.0.2"
     js-tokens "^3.0.2"
 
-babel-core@^6.0.0, babel-core@^6.1.4, babel-core@^6.24.0:
+babel-core@^6.0.0, babel-core@^6.24.0:
   version "6.24.0"
   resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.24.0.tgz#8f36a0a77f5c155aed6f920b844d23ba56742a02"
   integrity sha1-jzagp39cFVrtb5ILhE0julZ0KgI=
@@ -756,6 +839,15 @@ babel-plugin-check-es2015-constants@^6.22.0:
   dependencies:
     babel-runtime "^6.22.0"
 
+babel-plugin-istanbul@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-istanbul/-/babel-plugin-istanbul-5.1.0.tgz#6892f529eff65a3e2d33d87dc5888ffa2ecd4a30"
+  integrity sha512-CLoXPRSUWiR8yao8bShqZUIC6qLfZVVY3X1wj+QPNXu0wfmrRRfarh1LYy+dYMVI+bDj0ghy3tuqFFRFZmL1Nw==
+  dependencies:
+    find-up "^3.0.0"
+    istanbul-lib-instrument "^3.0.0"
+    test-exclude "^5.0.0"
+
 babel-plugin-syntax-async-functions@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz#cad9cad1191b5ad634bf30ae0872391e0647be95"
@@ -1837,14 +1929,14 @@ chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@~0.4.0:
-  version "0.4.0"
-  resolved "https://registry.yarnpkg.com/chalk/-/chalk-0.4.0.tgz#5199a3ddcd0c1efe23bc08c1b027b06176e0c64f"
-  integrity sha1-UZmj3c0MHv4jvAjBsCewYXbgxk8=
+chalk@^2.0.0:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.1.tgz#18c49ab16a037b6eb0152cc83e3471338215b66e"
+  integrity sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==
   dependencies:
-    ansi-styles "~1.0.0"
-    has-color "~0.1.0"
-    strip-ansi "~0.1.0"
+    ansi-styles "^3.2.1"
+    escape-string-regexp "^1.0.5"
+    supports-color "^5.3.0"
 
 cheerio@^1.0.0-rc.2:
   version "1.0.0-rc.2"
@@ -2442,6 +2534,13 @@ debug@^3.1.0, debug@~3.1.0:
   dependencies:
     ms "2.0.0"
 
+debug@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.0.tgz#373687bffa678b38b1cd91f861b63850035ddc87"
+  integrity sha512-heNPJUJIqC+xB6ayLAMHaIrmN9HKa7aQO8MGqKpvCA+uJYVcvR6l5kgdrhRuwPFHU7P5/A1w0BjByPHwpfTDKg==
+  dependencies:
+    ms "^2.1.1"
+
 decamelize@^1.0.0, decamelize@^1.1.1, decamelize@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
@@ -2894,6 +2993,13 @@ error-ex@^1.2.0:
   dependencies:
     is-arrayish "^0.2.1"
 
+error-ex@^1.3.1:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.2.tgz#b4ac40648107fdcdcfae242f428bea8a14d4f1bf"
+  integrity sha512-7dFHNmqeFSEt2ZBsCriorKnn3Z2pj+fd9kmI6QoWw4//DL+icEBfc0U7qJCisqrTsKTjw4fNFy2pW9OqStD84g==
+  dependencies:
+    is-arrayish "^0.2.1"
+
 es-abstract@^1.10.0, es-abstract@^1.5.0, es-abstract@^1.6.1:
   version "1.12.0"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.12.0.tgz#9dbbdd27c6856f0001421ca18782d786bf8a6165"
@@ -2997,7 +3103,7 @@ escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
   integrity sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=
 
-escodegen@1.8.x, escodegen@^1.6.1:
+escodegen@1.8.x:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.8.1.tgz#5a5b53af4693110bebb0867aa3430dd3b70a1018"
   integrity sha1-WltTr0aTEQvrsIZ6o0MN07cKEBg=
@@ -3103,7 +3209,7 @@ espree@^3.4.0:
     acorn "^5.0.1"
     acorn-jsx "^3.0.0"
 
-esprima@2.7.x, esprima@^2.1.0, esprima@^2.6.0, esprima@^2.7.1:
+esprima@2.7.x, esprima@^2.6.0, esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
   integrity sha1-luO3DVd59q1JzQMmc9HDEnZ7pYE=
@@ -3564,6 +3670,13 @@ find-up@^2.0.0, find-up@^2.1.0:
   dependencies:
     locate-path "^2.0.0"
 
+find-up@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-3.0.0.tgz#49169f1d7993430646da61ecc5ae355c21c97b73"
+  integrity sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==
+  dependencies:
+    locate-path "^3.0.0"
+
 flat-cache@^1.2.1:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.2.2.tgz#fa86714e72c21db88601761ecf2f555d1abc6b96"
@@ -3861,6 +3974,11 @@ glob@^5.0.15:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+globals@^11.1.0:
+  version "11.9.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.9.0.tgz#bde236808e987f290768a93d065060d78e6ab249"
+  integrity sha512-5cJVtyXWH8PiJPVLZzzoIizXx944O4OmRro5MWKx5fT4MgcN7OfaMutPeaTdJCCURwbWdhhcCWcKIffPnmTzBg==
+
 globals@^9.0.0, globals@^9.14.0:
   version "9.17.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.17.0.tgz#0c0ca696d9b9bb694d2e5470bd37777caad50286"
@@ -3991,11 +4109,6 @@ has-binary2@~1.0.2:
   dependencies:
     isarray "2.0.1"
 
-has-color@~0.1.0:
-  version "0.1.7"
-  resolved "https://registry.yarnpkg.com/has-color/-/has-color-0.1.7.tgz#67144a5260c34fc3cca677d041daf52fe7b78b2f"
-  integrity sha1-ZxRKUmDDT8PMpnfQQdr1L+e3iy8=
-
 has-cors@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/has-cors/-/has-cors-1.1.0.tgz#5e474793f7ea9843d1bb99c23eef49ff126fff39"
@@ -4011,6 +4124,11 @@ has-flag@^2.0.0:
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
   integrity sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=
 
+has-flag@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
+  integrity sha1-tdRU3CGZriJWmfNGfloH87lVuv0=
+
 has-symbols@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.0.tgz#ba1a8f1af2a0fc39650f5c850367704122063b44"
@@ -4751,33 +4869,29 @@ isomorphic-fetch@^2.1.1:
     node-fetch "^1.0.1"
     whatwg-fetch ">=0.10.0"
 
-isparta-loader@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/isparta-loader/-/isparta-loader-2.0.0.tgz#4425f496c93f765bbceb4dd938576da307566ed1"
-  integrity sha1-RCX0lsk/dlu8603ZOFdtowdWbtE=
-  dependencies:
-    isparta "4.x.x"
-
-isparta@4.x.x:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/isparta/-/isparta-4.0.0.tgz#1de91996f480b22dcb1aca8510255bae1574446e"
-  integrity sha1-HekZlvSAsi3LGsqFECVbrhV0RG4=
-  dependencies:
-    babel-core "^6.1.4"
-    escodegen "^1.6.1"
-    esprima "^2.1.0"
-    istanbul "^0.4.0"
-    mkdirp "^0.5.0"
-    nomnomnomnom "^2.0.0"
-    object-assign "^4.0.1"
-    source-map "^0.5.0"
-    which "^1.0.9"
-
 isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
   integrity sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo=
 
+istanbul-lib-coverage@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.1.tgz#2aee0e073ad8c5f6a0b00e0dfbf52b4667472eda"
+  integrity sha512-nPvSZsVlbG9aLhZYaC3Oi1gT/tpyo3Yt5fNyf6NmcKIayz4VV/txxJFFKAK/gU4dcNn8ehsanBbVHVl0+amOLA==
+
+istanbul-lib-instrument@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-3.0.0.tgz#b5f066b2a161f75788be17a9d556f40a0cf2afc9"
+  integrity sha512-eQY9vN9elYjdgN9Iv6NS/00bptm02EBBk70lRMaVjeA6QYocQgenVrSgC28TJurdnZa80AGO3ASdFN+w/njGiQ==
+  dependencies:
+    "@babel/generator" "^7.0.0"
+    "@babel/parser" "^7.0.0"
+    "@babel/template" "^7.0.0"
+    "@babel/traverse" "^7.0.0"
+    "@babel/types" "^7.0.0"
+    istanbul-lib-coverage "^2.0.1"
+    semver "^5.5.0"
+
 istanbul@^0.4.0:
   version "0.4.5"
   resolved "https://registry.yarnpkg.com/istanbul/-/istanbul-0.4.5.tgz#65c7d73d4c4da84d4f3ac310b918fb0b8033733b"
@@ -4833,6 +4947,11 @@ js-tokens@^3.0.2:
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
   integrity sha1-mGbfOVECEw449/mWvOtlRDIJwls=
 
+js-tokens@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
+  integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
+
 js-yaml@3.6.1, js-yaml@3.x, js-yaml@^3.5.1:
   version "3.6.1"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.6.1.tgz#6e5fe67d8b205ce4d22fad05b7781e8dadcc4b30"
@@ -4895,6 +5014,11 @@ jsesc@^1.3.0:
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-1.3.0.tgz#46c3fec8c1892b12b0833db9bc7622176dbab34b"
   integrity sha1-RsP+yMGJKxKwgz25vHYiF226s0s=
 
+jsesc@^2.5.1:
+  version "2.5.2"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-2.5.2.tgz#80564d2e483dacf6e8ef209650a67df3f0c283a4"
+  integrity sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==
+
 jsesc@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
@@ -4905,6 +5029,11 @@ json-loader@^0.5.4:
   resolved "https://registry.yarnpkg.com/json-loader/-/json-loader-0.5.4.tgz#8baa1365a632f58a3c46d20175fc6002c96e37de"
   integrity sha1-i6oTZaYy9Yo8RtIBdfxgAsluN94=
 
+json-parse-better-errors@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz#bb867cfb3450e69107c131d1c514bab3dc8bcaa9"
+  integrity sha512-mrqyZKfX5EhL7hvqcV6WG1yYjnjeuYDzDhhcAAUrq8Po85NBQBJP+ZDUT75qZQ98IkUoBqdkExkukOU7Ts2wrw==
+
 json-schema-traverse@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
@@ -5163,6 +5292,16 @@ load-json-file@^2.0.0:
     pify "^2.0.0"
     strip-bom "^3.0.0"
 
+load-json-file@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-4.0.0.tgz#2f5f45ab91e33216234fd53adab668eb4ec0993b"
+  integrity sha1-L19Fq5HjMhYjT9U62rZo607AmTs=
+  dependencies:
+    graceful-fs "^4.1.2"
+    parse-json "^4.0.0"
+    pify "^3.0.0"
+    strip-bom "^3.0.0"
+
 loader-runner@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.0.tgz#f482aea82d543e07921700d5a46ef26fdac6b8a2"
@@ -5195,6 +5334,14 @@ locate-path@^2.0.0:
     p-locate "^2.0.0"
     path-exists "^3.0.0"
 
+locate-path@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-3.0.0.tgz#dbec3b3ab759758071b58fe59fc41871af21400e"
+  integrity sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==
+  dependencies:
+    p-locate "^3.0.0"
+    path-exists "^3.0.0"
+
 lodash._baseassign@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/lodash._baseassign/-/lodash._baseassign-3.2.0.tgz#8c38a099500f215ad09e59f1722fd0c52bfe0a4e"
@@ -5342,6 +5489,11 @@ lodash@^4.13.1:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
   integrity sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg==
 
+lodash@^4.17.10:
+  version "4.17.11"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
+  integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
+
 log-driver@1.2.5:
   version "1.2.5"
   resolved "https://registry.yarnpkg.com/log-driver/-/log-driver-1.2.5.tgz#7ae4ec257302fd790d557cb10c97100d857b0056"
@@ -5706,6 +5858,11 @@ ms@2.0.0:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
   integrity sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=
 
+ms@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
+  integrity sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==
+
 multicast-dns-service-types@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/multicast-dns-service-types/-/multicast-dns-service-types-1.1.0.tgz#899f11d9686e5e05cb91b35d5f0e63b773cfc901"
@@ -5885,14 +6042,6 @@ nomnom@~1.6.2:
     colors "0.5.x"
     underscore "~1.4.4"
 
-nomnomnomnom@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/nomnomnomnom/-/nomnomnomnom-2.0.1.tgz#b2239f031c8d04da67e32836e1e3199e12f7a8e2"
-  integrity sha1-siOfAxyNBNpn4yg24eMZnhL3qOI=
-  dependencies:
-    chalk "~0.4.0"
-    underscore "~1.6.0"
-
 nopt@3.x, nopt@^3.0.6:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
@@ -6229,6 +6378,13 @@ p-limit@^1.1.0:
   dependencies:
     p-try "^1.0.0"
 
+p-limit@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.0.0.tgz#e624ed54ee8c460a778b3c9f3670496ff8a57aec"
+  integrity sha512-fl5s52lI5ahKCernzzIyAP0QAZbGIovtVHGwpcu1Jr/EpzLVDI2myISHwGqK7m8uQFugVWSrbxH7XnhGtvEc+A==
+  dependencies:
+    p-try "^2.0.0"
+
 p-locate@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
@@ -6236,6 +6392,13 @@ p-locate@^2.0.0:
   dependencies:
     p-limit "^1.1.0"
 
+p-locate@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-3.0.0.tgz#322d69a05c0264b25997d9f40cd8a891ab0064a4"
+  integrity sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==
+  dependencies:
+    p-limit "^2.0.0"
+
 p-map@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
@@ -6246,6 +6409,11 @@ p-try@^1.0.0:
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
   integrity sha1-y8ec26+P1CKOE/Yh8rGiN8GyB7M=
 
+p-try@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.0.0.tgz#85080bb87c64688fa47996fe8f7dfbe8211760b1"
+  integrity sha512-hMp0onDKIajHfIkdRk3P4CdCmErkYAxxDtP3Wx/4nZ3aGlau2VKh3mZpcuFkH27WQkL/3WBCPOktzA9ZOAnMQQ==
+
 package-json@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/package-json/-/package-json-1.2.0.tgz#c8ecac094227cdf76a316874ed05e27cc939a0e0"
@@ -6287,6 +6455,14 @@ parse-json@^2.2.0:
   dependencies:
     error-ex "^1.2.0"
 
+parse-json@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-4.0.0.tgz#be35f5425be1f7f6c747184f98a788cb99477ee0"
+  integrity sha1-vjX1Qlvh9/bHRxhPmKeIy5lHfuA=
+  dependencies:
+    error-ex "^1.3.1"
+    json-parse-better-errors "^1.0.1"
+
 parse5@5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-5.1.0.tgz#c59341c9723f414c452975564c7c00a68d58acd2"
@@ -6386,6 +6562,13 @@ path-type@^2.0.0:
   dependencies:
     pify "^2.0.0"
 
+path-type@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-3.0.0.tgz#cef31dc8e0a1a3bb0d105c0cd97cf3bf47f4e36f"
+  integrity sha512-T2ZUsdZFHgA3u4e5PfPbjd7HDDpxPnQb5jN0SrDsjNSuVXHJqtwTnWqG0B1jZrgmJ/7lj1EmVIByWt1gxGkWvg==
+  dependencies:
+    pify "^3.0.0"
+
 pause-stream@0.0.11:
   version "0.0.11"
   resolved "https://registry.yarnpkg.com/pause-stream/-/pause-stream-0.0.11.tgz#fe5a34b0cbce12b5aa6a2b403ee2e73b602f1445"
@@ -6824,6 +7007,14 @@ read-pkg-up@^2.0.0:
     find-up "^2.0.0"
     read-pkg "^2.0.0"
 
+read-pkg-up@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-4.0.0.tgz#1b221c6088ba7799601c808f91161c66e58f8978"
+  integrity sha512-6etQSH7nJGsK0RbG/2TeDzZFa8shjQ1um+SwQQ5cwKy0dhSXdOncEhb1CPpvQG4h7FyOV6EB6YlV0yJvZQNAkA==
+  dependencies:
+    find-up "^3.0.0"
+    read-pkg "^3.0.0"
+
 read-pkg@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-1.1.0.tgz#f5ffaa5ecd29cb31c0474bca7d756b6bb29e3f28"
@@ -6842,6 +7033,15 @@ read-pkg@^2.0.0:
     normalize-package-data "^2.3.2"
     path-type "^2.0.0"
 
+read-pkg@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-3.0.0.tgz#9cbc686978fee65d16c00e2b19c237fcf6e38389"
+  integrity sha1-nLxoaXj+5l0WwA4rGcI3/Pbjg4k=
+  dependencies:
+    load-json-file "^4.0.0"
+    normalize-package-data "^2.3.2"
+    path-type "^3.0.0"
+
 readable-stream@^2.0.0, "readable-stream@^2.0.0 || ^1.1.13", readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.1.0, readable-stream@^2.1.4, readable-stream@^2.2.2:
   version "2.2.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.2.6.tgz#8b43aed76e71483938d12a8d46c6cf1a00b1f816"
@@ -7270,6 +7470,11 @@ semver@^5.4.1:
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.1.tgz#7dfdd8814bdb7cabc7be0fb1d734cfb66c940477"
   integrity sha512-PqpAxfrEhlSUWge8dwIp4tZnQ25DIOthpiaHNIthsjEFQD6EvqUKUDM7L8O2rShkFccYo1VjJR0coWfNkCubRw==
 
+semver@^5.5.0:
+  version "5.6.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
+  integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==
+
 send@0.15.1:
   version "0.15.1"
   resolved "https://registry.yarnpkg.com/send/-/send-0.15.1.tgz#8a02354c26e6f5cca700065f5f0cdeba90ec7b5f"
@@ -7832,11 +8037,6 @@ strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   dependencies:
     ansi-regex "^2.0.0"
 
-strip-ansi@~0.1.0:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-0.1.1.tgz#39e8a98d044d150660abe4a6808acf70bb7bc991"
-  integrity sha1-OeipjQRNFQZgq+SmgIrPcLt7yZE=
-
 strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
@@ -7899,6 +8099,13 @@ supports-color@^5.1.0:
   dependencies:
     has-flag "^2.0.0"
 
+supports-color@^5.3.0:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
+  integrity sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==
+  dependencies:
+    has-flag "^3.0.0"
+
 symbol-tree@^3.2.2:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/symbol-tree/-/symbol-tree-3.2.2.tgz#ae27db38f660a7ae2e1c3b7d1bc290819b8519e6"
@@ -7957,6 +8164,16 @@ tar@^4:
     safe-buffer "^5.1.2"
     yallist "^3.0.2"
 
+test-exclude@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-5.0.0.tgz#cdce7cece785e0e829cd5c2b27baf18bc583cfb7"
+  integrity sha512-bO3Lj5+qFa9YLfYW2ZcXMOV1pmQvw+KS/DpjqhyX6Y6UZ8zstpZJ+mA2ERkXfpOqhxsJlQiLeVXD3Smsrs6oLw==
+  dependencies:
+    arrify "^1.0.1"
+    minimatch "^3.0.4"
+    read-pkg-up "^4.0.0"
+    require-main-filename "^1.0.1"
+
 text-table@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
@@ -8023,6 +8240,11 @@ to-fast-properties@^1.0.3:
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
   integrity sha1-uDVx+k2MJbguIxsG46MFXeTKGkc=
 
+to-fast-properties@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-2.0.0.tgz#dc5e698cbd079265bc73e0377681a4e4e83f616e"
+  integrity sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=
+
 to-object-path@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/to-object-path/-/to-object-path-0.3.0.tgz#297588b7b0e7e0ac08e04e672f85c1f4999e17af"
@@ -8212,11 +8434,6 @@ underscore@~1.4.4:
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.4.4.tgz#61a6a32010622afa07963bf325203cf12239d604"
   integrity sha1-YaajIBBiKvoHljvzJSA88SI51gQ=
 
-underscore@~1.6.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.6.0.tgz#8b38b10cacdef63337b8b24e4ff86d45aea529a8"
-  integrity sha1-izixDKze9jM3uLJOT/htRa6lKag=
-
 union-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/union-value/-/union-value-1.0.0.tgz#5c71c34cb5bad5dcebe3ea0cd08207ba5aa1aea4"
@@ -8576,7 +8793,7 @@ which-module@^2.0.0:
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
   integrity sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=
 
-which@^1.0.9, which@^1.1.1:
+which@^1.1.1:
   version "1.2.14"
   resolved "https://registry.yarnpkg.com/which/-/which-1.2.14.tgz#9a87c4378f03e827cecaf1acdf56c736c01c14e5"
   integrity sha1-mofEN48D6CfOyvGs31bHNsAcFOU=