diff --git a/lib/loader.js b/lib/loader.js
index d2af5e05..069e6b73 100644
--- a/lib/loader.js
+++ b/lib/loader.js
@@ -2,6 +2,7 @@
   MIT License http://www.opensource.org/licenses/mit-license.php
   Author Tobias Koppers @sokra
 */
+const validateOptions = require('schema-utils');
 const postcss = require('postcss');
 const postcssPkg = require('postcss/package.json');
 const localByDefault = require('postcss-modules-local-by-default');
@@ -17,6 +18,7 @@ const {
   stringifyRequest,
 } = require('loader-utils');
 
+const schema = require('./options.json');
 const { importParser, icssParser, urlParser } = require('./plugins');
 const {
   getLocalIdent,
@@ -28,8 +30,11 @@ const Warning = require('./Warning');
 const CssSyntaxError = require('./CssSyntaxError');
 
 module.exports = function loader(content, map, meta) {
-  const callback = this.async();
   const options = getOptions(this) || {};
+
+  validateOptions(schema, options, 'CSS Loader');
+
+  const callback = this.async();
   const sourceMap = options.sourceMap || false;
 
   /* eslint-disable no-param-reassign */
diff --git a/lib/options.json b/lib/options.json
new file mode 100644
index 00000000..4ad07b19
--- /dev/null
+++ b/lib/options.json
@@ -0,0 +1,65 @@
+{
+  "additionalProperties": false,
+  "properties": {
+    "url": {
+      "type": "boolean"
+    },
+    "import": {
+      "type": "boolean"
+    },
+    "modules": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "string",
+          "enum": ["local", "global"]
+        }
+      ]
+    },
+    "localIdentName": {
+      "type": "string"
+    },
+    "localIdentRegExp": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "instanceof": "RegExp"
+        }
+      ]
+    },
+    "context": {
+      "type": "string"
+    },
+    "hashPrefix": {
+      "type": "string"
+    },
+    "getLocalIdent": {
+      "instanceof": "Function"
+    },
+    "sourceMap": {
+      "type": "boolean"
+    },
+    "camelCase": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "string",
+          "enum": ["dashes", "only", "dashesOnly"]
+        }
+      ]
+    },
+    "importLoaders": {
+      "type": "number"
+    },
+    "exportOnlyLocals": {
+      "type": "boolean"
+    }
+  },
+  "type": "object"
+}
diff --git a/package-lock.json b/package-lock.json
index 03e84fb0..6ea17926 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "@babel/cli": {
-      "version": "7.1.5",
-      "resolved": "https://registry.npmjs.org/@babel/cli/-/cli-7.1.5.tgz",
-      "integrity": "sha512-zbO/DtTnaDappBflIU3zYEgATLToRDmW5uN/EGH1GXaes7ydfjqmAoK++xmJIA+8HfDw7UyPZNdM8fhGhfmMhw==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/cli/-/cli-7.2.0.tgz",
+      "integrity": "sha512-FLteTkEoony0DX8NbnT51CmwmLBzINdlXmiJCSqCLmqWCDA/xk8EITPWqwDnVLbuK0bsZONt/grqHnQzQ15j0Q==",
       "dev": true,
       "requires": {
         "chokidar": "^2.0.3",
@@ -40,18 +40,18 @@
       }
     },
     "@babel/core": {
-      "version": "7.1.6",
-      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.1.6.tgz",
-      "integrity": "sha512-Hz6PJT6e44iUNpAn8AoyAs6B3bl60g7MJQaI0rZEar6ECzh6+srYO1xlIdssio34mPaUtAb1y+XlkkSJzok3yw==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.2.0.tgz",
+      "integrity": "sha512-7pvAdC4B+iKjFFp9Ztj0QgBndJ++qaMeonT185wAqUnhipw8idm9Rv1UMyBuKtYjfl6ORNkgEgcsYLfHX/GpLw==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.0.0",
-        "@babel/generator": "^7.1.6",
-        "@babel/helpers": "^7.1.5",
-        "@babel/parser": "^7.1.6",
+        "@babel/generator": "^7.2.0",
+        "@babel/helpers": "^7.2.0",
+        "@babel/parser": "^7.2.0",
         "@babel/template": "^7.1.2",
         "@babel/traverse": "^7.1.6",
-        "@babel/types": "^7.1.6",
+        "@babel/types": "^7.2.0",
         "convert-source-map": "^1.1.0",
         "debug": "^4.1.0",
         "json5": "^2.1.0",
@@ -100,12 +100,12 @@
       }
     },
     "@babel/generator": {
-      "version": "7.1.6",
-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.1.6.tgz",
-      "integrity": "sha512-brwPBtVvdYdGxtenbQgfCdDPmtkmUBZPjUoK5SXJEBuHaA5BCubh9ly65fzXz7R6o5rA76Rs22ES8Z+HCc0YIQ==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.2.0.tgz",
+      "integrity": "sha512-BA75MVfRlFQG2EZgFYIwyT1r6xSkwfP2bdkY/kLZusEYWiJs4xCowab/alaEaT0wSvmVuXGqiefeBlP+7V1yKg==",
       "dev": true,
       "requires": {
-        "@babel/types": "^7.1.6",
+        "@babel/types": "^7.2.0",
         "jsesc": "^2.5.1",
         "lodash": "^4.17.10",
         "source-map": "^0.5.0",
@@ -307,26 +307,26 @@
       }
     },
     "@babel/helper-wrap-function": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npmjs.org/@babel/helper-wrap-function/-/helper-wrap-function-7.1.0.tgz",
-      "integrity": "sha512-R6HU3dete+rwsdAfrOzTlE9Mcpk4RjU3aX3gi9grtmugQY0u79X7eogUvfXA5sI81Mfq1cn6AgxihfN33STjJA==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-wrap-function/-/helper-wrap-function-7.2.0.tgz",
+      "integrity": "sha512-o9fP1BZLLSrYlxYEYyl2aS+Flun5gtjTIG8iln+XuEzQTs0PLagAGSXUcqruJwD5fM48jzIEggCKpIfWTcR7pQ==",
       "dev": true,
       "requires": {
         "@babel/helper-function-name": "^7.1.0",
         "@babel/template": "^7.1.0",
         "@babel/traverse": "^7.1.0",
-        "@babel/types": "^7.0.0"
+        "@babel/types": "^7.2.0"
       }
     },
     "@babel/helpers": {
-      "version": "7.1.5",
-      "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.1.5.tgz",
-      "integrity": "sha512-2jkcdL02ywNBry1YNFAH/fViq4fXG0vdckHqeJk+75fpQ2OH+Az6076tX/M0835zA45E0Cqa6pV5Kiv9YOqjEg==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.2.0.tgz",
+      "integrity": "sha512-Fr07N+ea0dMcMN8nFpuK6dUIT7/ivt9yKQdEEnjVS83tG2pHwPi03gYmk/tyuwONnZ+sY+GFFPlWGgCtW1hF9A==",
       "dev": true,
       "requires": {
         "@babel/template": "^7.1.2",
         "@babel/traverse": "^7.1.5",
-        "@babel/types": "^7.1.5"
+        "@babel/types": "^7.2.0"
       }
     },
     "@babel/highlight": {
@@ -341,56 +341,56 @@
       }
     },
     "@babel/parser": {
-      "version": "7.1.6",
-      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.1.6.tgz",
-      "integrity": "sha512-dWP6LJm9nKT6ALaa+bnL247GHHMWir3vSlZ2+IHgHgktZQx0L3Uvq2uAWcuzIe+fujRsYWBW2q622C5UvGK9iQ==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.2.0.tgz",
+      "integrity": "sha512-M74+GvK4hn1eejD9lZ7967qAwvqTZayQa3g10ag4s9uewgR7TKjeaT0YMyoq+gVfKYABiWZ4MQD701/t5e1Jhg==",
       "dev": true
     },
     "@babel/plugin-proposal-async-generator-functions": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-async-generator-functions/-/plugin-proposal-async-generator-functions-7.1.0.tgz",
-      "integrity": "sha512-Fq803F3Jcxo20MXUSDdmZZXrPe6BWyGcWBPPNB/M7WaUYESKDeKMOGIxEzQOjGSmW/NWb6UaPZrtTB2ekhB/ew==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-async-generator-functions/-/plugin-proposal-async-generator-functions-7.2.0.tgz",
+      "integrity": "sha512-+Dfo/SCQqrwx48ptLVGLdE39YtWRuKc/Y9I5Fy0P1DDBB9lsAHpjcEJQt+4IifuSOSTLBKJObJqMvaO1pIE8LQ==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0",
         "@babel/helper-remap-async-to-generator": "^7.1.0",
-        "@babel/plugin-syntax-async-generators": "^7.0.0"
+        "@babel/plugin-syntax-async-generators": "^7.2.0"
       }
     },
     "@babel/plugin-proposal-json-strings": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-json-strings/-/plugin-proposal-json-strings-7.0.0.tgz",
-      "integrity": "sha512-kfVdUkIAGJIVmHmtS/40i/fg/AGnw/rsZBCaapY5yjeO5RA9m165Xbw9KMOu2nqXP5dTFjEjHdfNdoVcHv133Q==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-json-strings/-/plugin-proposal-json-strings-7.2.0.tgz",
+      "integrity": "sha512-MAFV1CA/YVmYwZG0fBQyXhmj0BHCB5egZHCKWIFVv/XCxAeVGIHfos3SwDck4LvCllENIAg7xMKOG5kH0dzyUg==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0",
-        "@babel/plugin-syntax-json-strings": "^7.0.0"
+        "@babel/plugin-syntax-json-strings": "^7.2.0"
       }
     },
     "@babel/plugin-proposal-object-rest-spread": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-object-rest-spread/-/plugin-proposal-object-rest-spread-7.0.0.tgz",
-      "integrity": "sha512-14fhfoPcNu7itSen7Py1iGN0gEm87hX/B+8nZPqkdmANyyYWYMY2pjA3r8WXbWVKMzfnSNS0xY8GVS0IjXi/iw==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-object-rest-spread/-/plugin-proposal-object-rest-spread-7.2.0.tgz",
+      "integrity": "sha512-1L5mWLSvR76XYUQJXkd/EEQgjq8HHRP6lQuZTTg0VA4tTGPpGemmCdAfQIz1rzEuWAm+ecP8PyyEm30jC1eQCg==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0",
-        "@babel/plugin-syntax-object-rest-spread": "^7.0.0"
+        "@babel/plugin-syntax-object-rest-spread": "^7.2.0"
       }
     },
     "@babel/plugin-proposal-optional-catch-binding": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-optional-catch-binding/-/plugin-proposal-optional-catch-binding-7.0.0.tgz",
-      "integrity": "sha512-JPqAvLG1s13B/AuoBjdBYvn38RqW6n1TzrQO839/sIpqLpbnXKacsAgpZHzLD83Sm8SDXMkkrAvEnJ25+0yIpw==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-optional-catch-binding/-/plugin-proposal-optional-catch-binding-7.2.0.tgz",
+      "integrity": "sha512-mgYj3jCcxug6KUcX4OBoOJz3CMrwRfQELPQ5560F70YQUBZB7uac9fqaWamKR1iWUzGiK2t0ygzjTScZnVz75g==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0",
-        "@babel/plugin-syntax-optional-catch-binding": "^7.0.0"
+        "@babel/plugin-syntax-optional-catch-binding": "^7.2.0"
       }
     },
     "@babel/plugin-proposal-unicode-property-regex": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-unicode-property-regex/-/plugin-proposal-unicode-property-regex-7.0.0.tgz",
-      "integrity": "sha512-tM3icA6GhC3ch2SkmSxv7J/hCWKISzwycub6eGsDrFDgukD4dZ/I+x81XgW0YslS6mzNuQ1Cbzh5osjIMgepPQ==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-unicode-property-regex/-/plugin-proposal-unicode-property-regex-7.2.0.tgz",
+      "integrity": "sha512-LvRVYb7kikuOtIoUeWTkOxQEV1kYvL5B6U3iWEGCzPNRus1MzJweFqORTj+0jkxozkTSYNJozPOddxmqdqsRpw==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0",
@@ -430,54 +430,54 @@
       }
     },
     "@babel/plugin-syntax-async-generators": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-async-generators/-/plugin-syntax-async-generators-7.0.0.tgz",
-      "integrity": "sha512-im7ged00ddGKAjcZgewXmp1vxSZQQywuQXe2B1A7kajjZmDeY/ekMPmWr9zJgveSaQH0k7BcGrojQhcK06l0zA==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-async-generators/-/plugin-syntax-async-generators-7.2.0.tgz",
+      "integrity": "sha512-1ZrIRBv2t0GSlcwVoQ6VgSLpLgiN/FVQUzt9znxo7v2Ov4jJrs8RY8tv0wvDmFN3qIdMKWrmMMW6yZ0G19MfGg==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0"
       }
     },
     "@babel/plugin-syntax-json-strings": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-json-strings/-/plugin-syntax-json-strings-7.0.0.tgz",
-      "integrity": "sha512-UlSfNydC+XLj4bw7ijpldc1uZ/HB84vw+U6BTuqMdIEmz/LDe63w/GHtpQMdXWdqQZFeAI9PjnHe/vDhwirhKA==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-json-strings/-/plugin-syntax-json-strings-7.2.0.tgz",
+      "integrity": "sha512-5UGYnMSLRE1dqqZwug+1LISpA403HzlSfsg6P9VXU6TBjcSHeNlw4DxDx7LgpF+iKZoOG/+uzqoRHTdcUpiZNg==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0"
       }
     },
     "@babel/plugin-syntax-object-rest-spread": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-object-rest-spread/-/plugin-syntax-object-rest-spread-7.0.0.tgz",
-      "integrity": "sha512-5A0n4p6bIiVe5OvQPxBnesezsgFJdHhSs3uFSvaPdMqtsovajLZ+G2vZyvNe10EzJBWWo3AcHGKhAFUxqwp2dw==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-object-rest-spread/-/plugin-syntax-object-rest-spread-7.2.0.tgz",
+      "integrity": "sha512-t0JKGgqk2We+9may3t0xDdmneaXmyxq0xieYcKHxIsrJO64n1OiMWNUtc5gQK1PA0NpdCRrtZp4z+IUaKugrSA==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0"
       }
     },
     "@babel/plugin-syntax-optional-catch-binding": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-optional-catch-binding/-/plugin-syntax-optional-catch-binding-7.0.0.tgz",
-      "integrity": "sha512-Wc+HVvwjcq5qBg1w5RG9o9RVzmCaAg/Vp0erHCKpAYV8La6I94o4GQAmFYNmkzoMO6gzoOSulpKeSSz6mPEoZw==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-optional-catch-binding/-/plugin-syntax-optional-catch-binding-7.2.0.tgz",
+      "integrity": "sha512-bDe4xKNhb0LI7IvZHiA13kff0KEfaGX/Hv4lMA9+7TEc63hMNvfKo6ZFpXhKuEp+II/q35Gc4NoMeDZyaUbj9w==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0"
       }
     },
     "@babel/plugin-transform-arrow-functions": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-arrow-functions/-/plugin-transform-arrow-functions-7.0.0.tgz",
-      "integrity": "sha512-2EZDBl1WIO/q4DIkIp4s86sdp4ZifL51MoIviLY/gG/mLSuOIEg7J8o6mhbxOTvUJkaN50n+8u41FVsr5KLy/w==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-arrow-functions/-/plugin-transform-arrow-functions-7.2.0.tgz",
+      "integrity": "sha512-ER77Cax1+8/8jCB9fo4Ud161OZzWN5qawi4GusDuRLcDbDG+bIGYY20zb2dfAFdTRGzrfq2xZPvF0R64EHnimg==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0"
       }
     },
     "@babel/plugin-transform-async-to-generator": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-async-to-generator/-/plugin-transform-async-to-generator-7.1.0.tgz",
-      "integrity": "sha512-rNmcmoQ78IrvNCIt/R9U+cixUHeYAzgusTFgIAv+wQb9HJU4szhpDD6e5GCACmj/JP5KxuCwM96bX3L9v4ZN/g==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-async-to-generator/-/plugin-transform-async-to-generator-7.2.0.tgz",
+      "integrity": "sha512-CEHzg4g5UraReozI9D4fblBYABs7IM6UerAVG7EJVrTLC5keh00aEuLUT+O40+mJCEzaXkYfTCUKIyeDfMOFFQ==",
       "dev": true,
       "requires": {
         "@babel/helper-module-imports": "^7.0.0",
@@ -486,18 +486,18 @@
       }
     },
     "@babel/plugin-transform-block-scoped-functions": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-block-scoped-functions/-/plugin-transform-block-scoped-functions-7.0.0.tgz",
-      "integrity": "sha512-AOBiyUp7vYTqz2Jibe1UaAWL0Hl9JUXEgjFvvvcSc9MVDItv46ViXFw2F7SVt1B5k+KWjl44eeXOAk3UDEaJjQ==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-block-scoped-functions/-/plugin-transform-block-scoped-functions-7.2.0.tgz",
+      "integrity": "sha512-ntQPR6q1/NKuphly49+QiQiTN0O63uOwjdD6dhIjSWBI5xlrbUFh720TIpzBhpnrLfv2tNH/BXvLIab1+BAI0w==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0"
       }
     },
     "@babel/plugin-transform-block-scoping": {
-      "version": "7.1.5",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-block-scoping/-/plugin-transform-block-scoping-7.1.5.tgz",
-      "integrity": "sha512-jlYcDrz+5ayWC7mxgpn1Wj8zj0mmjCT2w0mPIMSwO926eXBRxpEgoN/uQVRBfjtr8ayjcmS+xk2G1jaP8JjMJQ==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-block-scoping/-/plugin-transform-block-scoping-7.2.0.tgz",
+      "integrity": "sha512-vDTgf19ZEV6mx35yiPJe4fS02mPQUUcBNwWQSZFXSzTSbsJFQvHt7DqyS3LK8oOWALFOsJ+8bbqBgkirZteD5Q==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.0.0",
@@ -505,9 +505,9 @@
       }
     },
     "@babel/plugin-transform-classes": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-classes/-/plugin-transform-classes-7.1.0.tgz",
-      "integrity": "sha512-rNaqoD+4OCBZjM7VaskladgqnZ1LO6o2UxuWSDzljzW21pN1KXkB7BstAVweZdxQkHAujps5QMNOTWesBciKFg==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-classes/-/plugin-transform-classes-7.2.0.tgz",
+      "integrity": "sha512-aPCEkrhJYebDXcGTAP+cdUENkH7zqOlgbKwLbghjjHpJRJBWM/FSlCjMoPGA8oUdiMfOrk3+8EFPLLb5r7zj2w==",
       "dev": true,
       "requires": {
         "@babel/helper-annotate-as-pure": "^7.0.0",
@@ -521,27 +521,27 @@
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+        "@babel/plugin-transform-literals": "^7.2.0",
+        "@babel/plugin-transform-modules-amd": "^7.2.0",
+        "@babel/plugin-transform-modules-commonjs": "^7.2.0",
+        "@babel/plugin-transform-modules-systemjs": "^7.2.0",
+        "@babel/plugin-transform-modules-umd": "^7.2.0",
         "@babel/plugin-transform-new-target": "^7.0.0",
-        "@babel/plugin-transform-object-super": "^7.1.0",
-        "@babel/plugin-transform-parameters": "^7.1.0",
+        "@babel/plugin-transform-object-super": "^7.2.0",
+        "@babel/plugin-transform-parameters": "^7.2.0",
         "@babel/plugin-transform-regenerator": "^7.0.0",
-        "@babel/plugin-transform-shorthand-properties": "^7.0.0",
-        "@babel/plugin-transform-spread": "^7.0.0",
-        "@babel/plugin-transform-sticky-regex": "^7.0.0",
-        "@babel/plugin-transform-template-literals": "^7.0.0",
-        "@babel/plugin-transform-typeof-symbol": "^7.0.0",
-        "@babel/plugin-transform-unicode-regex": "^7.0.0",
-        "browserslist": "^4.1.0",
+        "@babel/plugin-transform-shorthand-properties": "^7.2.0",
+        "@babel/plugin-transform-spread": "^7.2.0",
+        "@babel/plugin-transform-sticky-regex": "^7.2.0",
+        "@babel/plugin-transform-template-literals": "^7.2.0",
+        "@babel/plugin-transform-typeof-symbol": "^7.2.0",
+        "@babel/plugin-transform-unicode-regex": "^7.2.0",
+        "browserslist": "^4.3.4",
         "invariant": "^2.2.2",
         "js-levenshtein": "^1.1.3",
         "semver": "^5.3.0"
@@ -901,9 +901,9 @@
       }
     },
     "@babel/types": {
-      "version": "7.1.6",
-      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.1.6.tgz",
-      "integrity": "sha512-DMiUzlY9DSjVsOylJssxLHSgj6tWM9PRFJOGW/RaOglVOK9nzTxoOMfTfRQXGUCUQ/HmlG2efwC+XqUEJ5ay4w==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.2.0.tgz",
+      "integrity": "sha512-b4v7dyfApuKDvmPb+O488UlGuR1WbwMXFsO/cyqMrnfvRAChZKJAYeeglWTjUO1b9UghKKgepAQM5tsvBJca6A==",
       "dev": true,
       "requires": {
         "esutils": "^2.0.2",
@@ -1448,7 +1448,6 @@
       "version": "6.6.1",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.6.1.tgz",
       "integrity": "sha512-ZoJjft5B+EJBjUyu9C9Hc0OZyPZSSlOF+plzouTrg6UlA8f+e/n8NIgBFG/9tppJtpPWfthHakK7juJdNDODww==",
-      "dev": true,
       "requires": {
         "fast-deep-equal": "^2.0.1",
         "fast-json-stable-stringify": "^2.0.0",
@@ -1459,14 +1458,12 @@
     "ajv-errors": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/ajv-errors/-/ajv-errors-1.0.0.tgz",
-      "integrity": "sha1-7PAh+hCP0X37Xms4Py3SM+Mf/Fk=",
-      "dev": true
+      "integrity": "sha1-7PAh+hCP0X37Xms4Py3SM+Mf/Fk="
     },
     "ajv-keywords": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.2.0.tgz",
-      "integrity": "sha1-6GuBnGAs+IIa1jdBNpjx3sAhhHo=",
-      "dev": true
+      "integrity": "sha1-6GuBnGAs+IIa1jdBNpjx3sAhhHo="
     },
     "ansi-escapes": {
       "version": "3.1.0",
@@ -1689,16 +1686,16 @@
       "dev": true
     },
     "autoprefixer": {
-      "version": "9.3.1",
-      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.3.1.tgz",
-      "integrity": "sha512-DY9gOh8z3tnCbJ13JIWaeQsoYncTGdsrgCceBaQSIL4nvdrLxgbRSBPevg2XbX7u4QCSfLheSJEEIUUSlkbx6Q==",
+      "version": "9.4.1",
+      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-9.4.1.tgz",
+      "integrity": "sha512-T15Bt8akUOGqhkXPLKipYzzmmOOQ+H4dmZtk3VUNBbFiYuUh5uvXb/THxGGxbRlaNG+i39Qm3UdpLtpdiCMw9w==",
       "dev": true,
       "requires": {
-        "browserslist": "^4.3.3",
-        "caniuse-lite": "^1.0.30000898",
+        "browserslist": "^4.3.5",
+        "caniuse-lite": "^1.0.30000914",
         "normalize-range": "^0.1.2",
         "num2fraction": "^1.2.2",
-        "postcss": "^7.0.5",
+        "postcss": "^7.0.6",
         "postcss-value-parser": "^3.3.1"
       }
     },
@@ -2260,14 +2257,14 @@
       }
     },
     "browserslist": {
-      "version": "4.3.4",
-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.3.4.tgz",
-      "integrity": "sha512-u5iz+ijIMUlmV8blX82VGFrB9ecnUg5qEt55CMZ/YJEhha+d8qpBfOFuutJ6F/VKRXjZoD33b6uvarpPxcl3RA==",
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.3.5.tgz",
+      "integrity": "sha512-z9ZhGc3d9e/sJ9dIx5NFXkKoaiQTnrvrMsN3R1fGb1tkWWNSz12UewJn9TNxGo1l7J23h0MRaPmk7jfeTZYs1w==",
       "dev": true,
       "requires": {
-        "caniuse-lite": "^1.0.30000899",
-        "electron-to-chromium": "^1.3.82",
-        "node-releases": "^1.0.1"
+        "caniuse-lite": "^1.0.30000912",
+        "electron-to-chromium": "^1.3.86",
+        "node-releases": "^1.0.5"
       }
     },
     "bser": {
@@ -2411,9 +2408,9 @@
       }
     },
     "caniuse-lite": {
-      "version": "1.0.30000912",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30000912.tgz",
-      "integrity": "sha512-M3zAtV36U+xw5mMROlTXpAHClmPAor6GPKAMD5Yi7glCB5sbMPFtnQ3rGpk4XqPdUrrTIaVYSJZxREZWNy8QJg==",
+      "version": "1.0.30000914",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30000914.tgz",
+      "integrity": "sha512-qqj0CL1xANgg6iDOybiPTIxtsmAnfIky9mBC35qgWrnK4WwmhqfpmkDYMYgwXJ8LRZ3/2jXlCntulO8mBaAgSg==",
       "dev": true
     },
     "capture-exit": {
@@ -3746,9 +3743,9 @@
       }
     },
     "electron-to-chromium": {
-      "version": "1.3.85",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.85.tgz",
-      "integrity": "sha512-kWSDVVF9t3mft2OHVZy4K85X2beP6c6mFm3teFS/mLSDJpQwuFIWHrULCX+w6H1E55ZYmFRlT+ATAFRwhrYzsw==",
+      "version": "1.3.88",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.88.tgz",
+      "integrity": "sha512-UPV4NuQMKeUh1S0OWRvwg0PI8ASHN9kBC8yDTk1ROXLC85W5GnhTRu/MZu3Teqx3JjlQYuckuHYXSUSgtb3J+A==",
       "dev": true
     },
     "elegant-spinner": {
@@ -4380,8 +4377,7 @@
     "fast-deep-equal": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
-      "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk=",
-      "dev": true
+      "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk="
     },
     "fast-diff": {
       "version": "1.2.0",
@@ -4392,8 +4388,7 @@
     "fast-json-stable-stringify": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz",
-      "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I=",
-      "dev": true
+      "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I="
     },
     "fast-levenshtein": {
       "version": "2.0.6",
@@ -5791,9 +5786,9 @@
       }
     },
     "hash.js": {
-      "version": "1.1.5",
-      "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.5.tgz",
-      "integrity": "sha512-eWI5HG9Np+eHV1KQhisXWwM+4EPPYe5dFX1UZZH7k/E3JzDEazVH+VGlZi6R94ZqImq+A3D1mCEtrFIfg/E7sA==",
+      "version": "1.1.7",
+      "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.7.tgz",
+      "integrity": "sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==",
       "dev": true,
       "requires": {
         "inherits": "^2.0.3",
@@ -6115,9 +6110,9 @@
       "dev": true
     },
     "inquirer": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/inquirer/-/inquirer-6.2.0.tgz",
-      "integrity": "sha512-QIEQG4YyQ2UYZGDC4srMZ7BjHOmNk1lR2JQj5UknBapklm6WHA+VVH7N+sUdX3A7NeCfGF8o4X1S3Ao7nAcIeg==",
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/inquirer/-/inquirer-6.2.1.tgz",
+      "integrity": "sha512-088kl3DRT2dLU5riVMKKr1DlImd6X7smDhpXUCkJDCKvTEJeRiXh0G132HG9u5a+6Ylw9plFRY7RuTnwohYSpg==",
       "dev": true,
       "requires": {
         "ansi-escapes": "^3.0.0",
@@ -6131,19 +6126,8 @@
         "run-async": "^2.2.0",
         "rxjs": "^6.1.0",
         "string-width": "^2.1.0",
-        "strip-ansi": "^4.0.0",
+        "strip-ansi": "^5.0.0",
         "through": "^2.3.6"
-      },
-      "dependencies": {
-        "strip-ansi": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
-          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
-          "dev": true,
-          "requires": {
-            "ansi-regex": "^3.0.0"
-          }
-        }
       }
     },
     "invariant": {
@@ -7679,8 +7663,7 @@
     "json-schema-traverse": {
       "version": "0.4.1",
       "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
-      "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==",
-      "dev": true
+      "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg=="
     },
     "json-stable-stringify-without-jsonify": {
       "version": "1.0.1",
@@ -9615,9 +9598,9 @@
       "dev": true
     },
     "progress": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.1.tgz",
-      "integrity": "sha512-OE+a6vzqazc+K6LxJrX5UPyKFvGnL5CYmq2jFGNIBWHpc4QyE49/YOumcrpQFJpfejmvRtbJzgO1zPmMCqlbBg==",
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.2.tgz",
+      "integrity": "sha512-/OLz5F9beZUWwSHZDreXgap1XShX6W+DCHQCqwCF7uZ88s6uTlD2cR3JBE77SegCmNtb1Idst+NfmwcdU6KVhw==",
       "dev": true
     },
     "promise-inflight": {
@@ -9704,8 +9687,7 @@
     "punycode": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
-      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==",
-      "dev": true
+      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
     },
     "q": {
       "version": "1.5.1",
@@ -10247,7 +10229,6 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-1.0.0.tgz",
       "integrity": "sha512-i27Mic4KovM/lnGsy8whRCHhc7VicJajAjTrYg11K9zfZXnYIt4k5F+kZkwjnrhKzLic/HLU4j11mjsz2G/75g==",
-      "dev": true,
       "requires": {
         "ajv": "^6.1.0",
         "ajv-errors": "^1.0.0",
@@ -10528,7 +10509,8 @@
     "source-list-map": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/source-list-map/-/source-list-map-2.0.1.tgz",
-      "integrity": "sha512-qnQ7gVMxGNxsiL4lEuJwe/To8UnK7fAnmbGEEH8RpLouuKbeEm0lhbQVFIrNSuB+G7tVrAlVsZgETT5nljf+Iw=="
+      "integrity": "sha512-qnQ7gVMxGNxsiL4lEuJwe/To8UnK7fAnmbGEEH8RpLouuKbeEm0lhbQVFIrNSuB+G7tVrAlVsZgETT5nljf+Iw==",
+      "dev": true
     },
     "source-map": {
       "version": "0.6.1",
@@ -11076,9 +11058,9 @@
       "dev": true
     },
     "terser": {
-      "version": "3.10.13",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-3.10.13.tgz",
-      "integrity": "sha512-AgdHqw2leuADuHiP4Kkk1i40m10RMGguPaiCw6MVD6jtDR7N94zohGqAS2lkDXIS7eIkGit3ief3eQGh/Md+GQ==",
+      "version": "3.11.0",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-3.11.0.tgz",
+      "integrity": "sha512-5iLMdhEPIq3zFWskpmbzmKwMQixKmTYwY3Ox9pjtSklBLnHiuQ0GKJLhL1HSYtyffHM3/lDIFBnb82m9D7ewwQ==",
       "dev": true,
       "requires": {
         "commander": "~2.17.1",
@@ -11660,7 +11642,6 @@
       "version": "4.2.2",
       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
       "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
-      "dev": true,
       "requires": {
         "punycode": "^2.1.0"
       }
@@ -11810,9 +11791,9 @@
       "dev": true
     },
     "webpack": {
-      "version": "4.26.1",
-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.26.1.tgz",
-      "integrity": "sha512-i2oOvEvuvLLSuSCkdVrknaxAhtUZ9g+nLSoHCWV0gDzqGX2DXaCrMmMUpbRsTSSLrUqAI56PoEiyMUZIZ1msug==",
+      "version": "4.27.0",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.27.0.tgz",
+      "integrity": "sha512-y77EQNIlsB9fUGgpLv/ZzmH+Yd9DgyIF9omX9RFavR5ZFM6HxFm6sqkbBXYxpjbKej9K6hD+Y8qEVg2rWdI2gg==",
       "dev": true,
       "requires": {
         "@webassemblyjs/ast": "1.7.11",
diff --git a/package.json b/package.json
index e49145d1..234dca5c 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "locals.js"
   ],
   "dependencies": {
-    "css-selector-tokenizer": "^0.7.0",
+    "schema-utils": "^1.0.0",
     "icss-utils": "^4.0.0",
     "loader-utils": "^1.0.2",
     "lodash": "^4.17.11",
@@ -22,8 +22,7 @@
     "postcss-modules-local-by-default": "^2.0.1",
     "postcss-modules-scope": "^2.0.0",
     "postcss-modules-values": "^2.0.0",
-    "postcss-value-parser": "^3.3.0",
-    "source-list-map": "^2.0.0"
+    "postcss-value-parser": "^3.3.0"
   },
   "devDependencies": {
     "@babel/cli": "^7.1.5",
diff --git a/test/__snapshots__/errors.test.js.snap b/test/__snapshots__/errors.test.js.snap
new file mode 100644
index 00000000..5660fd3b
--- /dev/null
+++ b/test/__snapshots__/errors.test.js.snap
@@ -0,0 +1,109 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`validation 1`] = `
+"CSS Loader Invalid Options
+
+options.url should be boolean
+"
+`;
+
+exports[`validation 2`] = `
+"CSS Loader Invalid Options
+
+options.import should be boolean
+"
+`;
+
+exports[`validation 3`] = `
+"CSS Loader Invalid Options
+
+options.modules should be boolean
+options.modules should be equal to one of the allowed values
+options.modules should match some schema in anyOf
+"
+`;
+
+exports[`validation 4`] = `
+"CSS Loader Invalid Options
+
+options.modules should be boolean
+options.modules should be equal to one of the allowed values
+options.modules should match some schema in anyOf
+"
+`;
+
+exports[`validation 5`] = `
+"CSS Loader Invalid Options
+
+options.modules should be boolean
+options.modules should be equal to one of the allowed values
+options.modules should match some schema in anyOf
+"
+`;
+
+exports[`validation 6`] = `
+"CSS Loader Invalid Options
+
+options.localIdentName should be string
+"
+`;
+
+exports[`validation 7`] = `
+"CSS Loader Invalid Options
+
+options.localIdentRegExp should be string
+options.localIdentRegExp should pass \\"instanceof\\" keyword validation
+options.localIdentRegExp should match some schema in anyOf
+"
+`;
+
+exports[`validation 8`] = `
+"CSS Loader Invalid Options
+
+options.context should be string
+"
+`;
+
+exports[`validation 9`] = `
+"CSS Loader Invalid Options
+
+options.hashPrefix should be string
+"
+`;
+
+exports[`validation 10`] = `
+"CSS Loader Invalid Options
+
+options.getLocalIdent should pass \\"instanceof\\" keyword validation
+"
+`;
+
+exports[`validation 11`] = `
+"CSS Loader Invalid Options
+
+options.sourceMap should be boolean
+"
+`;
+
+exports[`validation 12`] = `
+"CSS Loader Invalid Options
+
+options.camelCase should be boolean
+options.camelCase should be equal to one of the allowed values
+options.camelCase should match some schema in anyOf
+"
+`;
+
+exports[`validation 13`] = `
+"CSS Loader Invalid Options
+
+options.importLoaders should be number
+"
+`;
+
+exports[`validation 14`] = `
+"CSS Loader Invalid Options
+
+options.exportOnlyLocals should be boolean
+"
+`;
diff --git a/test/errors.test.js b/test/errors.test.js
new file mode 100644
index 00000000..59f0669f
--- /dev/null
+++ b/test/errors.test.js
@@ -0,0 +1,86 @@
+const loader = require('../index');
+
+it('validation', () => {
+  const validate = (options) =>
+    loader.call(
+      Object.assign(
+        {},
+        {
+          query: options,
+          loaders: [],
+          remainingRequest: 'file.css',
+          currentRequest: 'file.css',
+          async: () => (error) => {
+            if (error) {
+              throw error;
+            }
+          },
+        }
+      ),
+      'a { color: red; }'
+    );
+
+  expect(() => validate({ url: true })).not.toThrow();
+  expect(() => validate({ url: false })).not.toThrow();
+  expect(() => validate({ url: 'true' })).toThrowErrorMatchingSnapshot();
+
+  expect(() => validate({ import: true })).not.toThrow();
+  expect(() => validate({ import: false })).not.toThrow();
+  expect(() => validate({ import: 'true' })).toThrowErrorMatchingSnapshot();
+
+  expect(() => validate({ modules: true })).not.toThrow();
+  expect(() => validate({ modules: false })).not.toThrow();
+  expect(() => validate({ modules: 'global' })).not.toThrow();
+  expect(() => validate({ modules: 'local' })).not.toThrow();
+  expect(() => validate({ modules: 'true' })).toThrowErrorMatchingSnapshot();
+  expect(() => validate({ modules: 'globals' })).toThrowErrorMatchingSnapshot();
+  expect(() => validate({ modules: 'locals' })).toThrowErrorMatchingSnapshot();
+
+  expect(() =>
+    validate({ localIdentName: '[path][name]__[local]--[hash:base64:5]' })
+  ).not.toThrow();
+  expect(() =>
+    validate({ localIdentName: true })
+  ).toThrowErrorMatchingSnapshot();
+
+  expect(() => validate({ localIdentRegExp: 'page-(.*)\\.js' })).not.toThrow();
+  expect(() => validate({ localIdentRegExp: /page-(.*)\.js/ })).not.toThrow();
+  expect(() =>
+    validate({ localIdentRegExp: true })
+  ).toThrowErrorMatchingSnapshot();
+
+  expect(() => validate({ context: 'context' })).not.toThrow();
+  expect(() => validate({ context: true })).toThrowErrorMatchingSnapshot();
+
+  expect(() => validate({ hashPrefix: 'hash' })).not.toThrow();
+  expect(() => validate({ hashPrefix: true })).toThrowErrorMatchingSnapshot();
+
+  expect(() => validate({ getLocalIdent: () => {} })).not.toThrow();
+  expect(() =>
+    validate({ getLocalIdent: true })
+  ).toThrowErrorMatchingSnapshot();
+
+  expect(() => validate({ sourceMap: true })).not.toThrow();
+  expect(() => validate({ sourceMap: false })).not.toThrow();
+  expect(() => validate({ sourceMap: 'true' })).toThrowErrorMatchingSnapshot();
+
+  expect(() => validate({ camelCase: true })).not.toThrow();
+  expect(() => validate({ camelCase: false })).not.toThrow();
+  expect(() => validate({ camelCase: 'dashes' })).not.toThrow();
+  expect(() => validate({ camelCase: 'only' })).not.toThrow();
+  expect(() => validate({ camelCase: 'dashesOnly' })).not.toThrow();
+  expect(() =>
+    validate({ camelCase: 'unknown' })
+  ).toThrowErrorMatchingSnapshot();
+
+  expect(() => validate({ importLoaders: 0 })).not.toThrow();
+  expect(() => validate({ importLoaders: 1 })).not.toThrow();
+  expect(() => validate({ importLoaders: 2 })).not.toThrow();
+  expect(() => validate({ importLoaders: '1' })).toThrowErrorMatchingSnapshot();
+
+  expect(() => validate({ exportOnlyLocals: true })).not.toThrow();
+  expect(() => validate({ exportOnlyLocals: false })).not.toThrow();
+  expect(() =>
+    validate({ exportOnlyLocals: 'true' })
+  ).toThrowErrorMatchingSnapshot();
+});