diff --git a/README.md b/README.md
index c64fc48..4f991ae 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ ESLint plugin for React Native
 
 [![Greenkeeper badge](https://badges.greenkeeper.io/Intellicode/eslint-plugin-react-native.svg)](https://greenkeeper.io/)
 
-[![Maintenance Status][status-image]][status-url] [![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Dependency Status][deps-image]][deps-url] [![Coverage Status][coverage-image]][coverage-url] [![Code Climate][climate-image]][climate-url] [![BCH compliance][bettercode-image]][bettercode-url] 
+[![Maintenance Status][status-image]][status-url] [![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Dependency Status][deps-image]][deps-url] [![Coverage Status][coverage-image]][coverage-url] [![Code Climate][climate-image]][climate-url] [![BCH compliance][bettercode-image]][bettercode-url]
 
 React Native specific linting rules for ESLint. This repository is structured like  (and contains code from) the excellent [eslint-plugin-react](http://github.com/yannickcr/eslint-plugin-react).
 
@@ -79,6 +79,7 @@ Finally, enable all of the rules that you would like to use.
 # List of supported rules
 
 * [no-unused-styles](docs/rules/no-unused-styles.md): Detect `StyleSheet` rules which are not used in your React components
+* [sort-styles](docs/rules/sort-styles.md): Require style definitions to be sorted alphabetically
 * [split-platform-components](docs/rules/split-platform-components.md): Enforce using platform specific filenames when necessary
 * [no-inline-styles](docs/rules/no-inline-styles.md): Detect JSX components with inline styles that contain literal values
 * [no-color-literals](docs/rules/no-color-literals.md): Detect `StyleSheet` rules and inline styles containing color literals instead of variables
diff --git a/docs/rules/sort-styles.md b/docs/rules/sort-styles.md
new file mode 100644
index 0000000..24ea0f6
--- /dev/null
+++ b/docs/rules/sort-styles.md
@@ -0,0 +1,132 @@
+# Require StyleSheet keys to be sorted
+It's like [sort-keys](https://eslint.org/docs/rules/sort-keys), but just for React Native styles.
+
+Keeping your style definitions sorted is a common convention that helps with readability. This rule lets you enforce an ascending (default) or descending alphabetical order for both "class names" and style properties.
+
+## Rule Details
+
+The following patterns are considered warnings:
+
+```js
+const styles = StyleSheet.create({
+  button: {
+    width: 100,
+    color: 'green',
+  },
+});
+```
+
+```js
+const styles = StyleSheet.create({
+  button: {},
+  anchor: {},
+});
+```
+
+The following patterns are not considered warnings:
+
+```js
+const styles = StyleSheet.create({
+  button: {
+    color: 'green',
+    width: 100,
+  },
+});
+```
+
+```js
+const styles = StyleSheet.create({
+  anchor: {},
+  button: {},
+});
+```
+
+## Options
+
+```
+{
+    "react-native/sort-styles": ["error", "asc", { "ignoreClassNames": false, "ignoreStyleProperties": false }]
+}
+```
+
+The 1st option is "asc" or "desc".
+
+* `"asc"` (default) - enforce properties to be in ascending order.
+* `"desc"` - enforce properties to be in descending order.
+
+The 2nd option is an object which has 2 properties.
+
+* `ignoreClassNames` - if `true`, order will not be enforced on the class name level. Default is `false`.
+* `ignoreStyleProperties` - if `true`, order will not be enforced on the style property level. Default is `false`.
+
+### desc
+
+`/* eslint react-native/sort-styles: ["error", "desc"] */`
+
+The following patterns are considered warnings:
+
+```js
+const styles = StyleSheet.create({
+  button: {
+    color: 'green',
+    width: 100,
+  },
+});
+```
+
+```js
+const styles = StyleSheet.create({
+  anchor: {},
+  button: {},
+});
+```
+
+The following patterns are not considered warnings:
+
+```js
+const styles = StyleSheet.create({
+  button: {
+    width: 100,
+    color: 'green',
+  },
+});
+```
+
+```js
+const styles = StyleSheet.create({
+  button: {},
+  anchor: {},
+});
+```
+
+### ignoreClassNames
+
+`/* eslint react-native/sort-styles: ["error", "asc", { "ignoreClassNames": true }] */`
+
+The following patterns are not considered warnings:
+
+```js
+const styles = StyleSheet.create({
+  button: {
+    color: 'green',
+    width: 100,
+  },
+  anchor: {},
+});
+```
+
+# ignoreStyleProperties
+
+`/* eslint react-native/sort-styles: ["error", "asc", { "ignoreStyleProperties": true }] */`
+
+The following patterns are not considered warnings:
+
+```js
+const styles = StyleSheet.create({
+  anchor: {},
+  button: {
+    width: 100,
+    color: 'green',
+  },
+});
+```
diff --git a/index.js b/index.js
index abc99bc..7d28601 100644
--- a/index.js
+++ b/index.js
@@ -6,6 +6,7 @@ const allRules = {
   'no-unused-styles': require('./lib/rules/no-unused-styles'),
   'no-inline-styles': require('./lib/rules/no-inline-styles'),
   'no-color-literals': require('./lib/rules/no-color-literals'),
+  'sort-styles': require('./lib/rules/sort-styles'),
   'split-platform-components': require('./lib/rules/split-platform-components'),
   'no-raw-text': require('./lib/rules/no-raw-text'),
 };
@@ -30,6 +31,7 @@ module.exports = {
     'no-unused-styles': 0,
     'no-inline-styles': 0,
     'no-color-literals': 0,
+    'sort-styles': 0,
     'split-platform-components': 0,
     'no-raw-text': 0,
   },
diff --git a/lib/rules/sort-styles.js b/lib/rules/sort-styles.js
new file mode 100644
index 0000000..4262c57
--- /dev/null
+++ b/lib/rules/sort-styles.js
@@ -0,0 +1,94 @@
+/**
+ * @fileoverview Rule to require StyleSheet object keys to be sorted
+ * @author Mats Byrkjeland
+ */
+
+'use strict';
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const { astHelpers } = require('../util/stylesheet');
+
+const { getStyleDeclarations, isStyleSheetDeclaration } = astHelpers;
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = (context) => {
+  const order = context.options[0] || 'asc';
+  const options = context.options[1] || {};
+  const ignoreClassNames = options.ignoreClassNames;
+  const ignoreStyleProperties = options.ignoreStyleProperties;
+  const isValidOrder = order === 'asc' ? (a, b) => a <= b : (a, b) => a >= b;
+
+  function report(type, node, prev, current) {
+    const currentName = current.key.name;
+    const prevName = prev.key.name;
+    context.report({
+      node,
+      message: `Expected ${type} to be in ${order}ending order. '${currentName}' should be before '${prevName}'.`,
+      loc: current.key.loc,
+    });
+  }
+
+  function checkIsSorted(array, arrayName, node) {
+    for (let i = 1; i < array.length; i += 1) {
+      const previous = array[i - 1];
+      const current = array[i];
+
+      if (previous.type !== 'Property' || current.type !== 'Property') {
+        return;
+      }
+
+      if (!isValidOrder(previous.key.name, current.key.name)) {
+        return report(arrayName, node, previous, current);
+      }
+    }
+  }
+
+  return {
+    VariableDeclarator: function (node) {
+      if (!isStyleSheetDeclaration(node, context.settings)) {
+        return;
+      }
+
+      const classDefinitions = getStyleDeclarations(node);
+
+      if (!ignoreClassNames) {
+        checkIsSorted(classDefinitions, 'class names', node);
+      }
+
+      if (ignoreStyleProperties) return;
+
+      classDefinitions.forEach((classDefinition) => {
+        const styleProperties = classDefinition.value.properties;
+        if (!styleProperties || styleProperties.length < 2) {
+          return;
+        }
+
+        checkIsSorted(styleProperties, 'style properties', node);
+      });
+    },
+  };
+};
+
+module.exports.schema = [
+  {
+    enum: ['asc', 'desc'],
+  },
+  {
+    type: 'object',
+    properties: {
+      ignoreClassNames: {
+        type: 'boolean',
+      },
+      ignoreStyleProperties: {
+        type: 'boolean',
+      },
+    },
+    additionalProperties: false,
+  },
+];
diff --git a/package-lock.json b/package-lock.json
index 04d398f..8b89886 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "integrity": "sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==",
       "dev": true,
       "requires": {
-        "@babel/highlight": "7.0.0"
+        "@babel/highlight": "^7.0.0"
       }
     },
     "@babel/highlight": {
@@ -19,9 +19,9 @@
       "integrity": "sha512-UFMC4ZeFC48Tpvj7C8UgLvtkaUuovQX+5xNWrsIoMG8o2z+XFKjKaN9iVmS84dPwVN00W4wPmqvYoZF3EGAsfw==",
       "dev": true,
       "requires": {
-        "chalk": "2.4.1",
-        "esutils": "2.0.2",
-        "js-tokens": "4.0.0"
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
       },
       "dependencies": {
         "ansi-styles": {
@@ -30,7 +30,7 @@
           "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
           "dev": true,
           "requires": {
-            "color-convert": "1.9.3"
+            "color-convert": "^1.9.0"
           }
         },
         "chalk": {
@@ -39,9 +39,9 @@
           "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
           "dev": true,
           "requires": {
-            "ansi-styles": "3.2.1",
-            "escape-string-regexp": "1.0.5",
-            "supports-color": "5.5.0"
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
           }
         },
         "js-tokens": {
@@ -56,7 +56,7 @@
           "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
           "dev": true,
           "requires": {
-            "has-flag": "3.0.0"
+            "has-flag": "^3.0.0"
           }
         }
       }
@@ -79,7 +79,7 @@
       "integrity": "sha512-JY+iV6r+cO21KtntVvFkD+iqjtdpRUpGqKWgfkCdZq1R+kbreEl8EcdcJR4SmiIgsIQT33s6QzheQ9a275Q8xw==",
       "dev": true,
       "requires": {
-        "acorn": "5.7.3"
+        "acorn": "^5.0.3"
       }
     },
     "ajv": {
@@ -88,10 +88,10 @@
       "integrity": "sha512-LqZ9wY+fx3UMiiPd741yB2pj3hhil+hQc8taf4o2QGRFpWgZ2V5C8HA165DY9sS3fJwsk7uT7ZlFEyC3Ig3lLg==",
       "dev": true,
       "requires": {
-        "fast-deep-equal": "2.0.1",
-        "fast-json-stable-stringify": "2.0.0",
-        "json-schema-traverse": "0.4.1",
-        "uri-js": "4.2.2"
+        "fast-deep-equal": "^2.0.1",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.4.1",
+        "uri-js": "^4.2.2"
       }
     },
     "ajv-keywords": {
@@ -131,7 +131,7 @@
       "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
       "dev": true,
       "requires": {
-        "sprintf-js": "1.0.3"
+        "sprintf-js": "~1.0.2"
       }
     },
     "aria-query": {
@@ -141,7 +141,7 @@
       "dev": true,
       "requires": {
         "ast-types-flow": "0.0.7",
-        "commander": "2.18.0"
+        "commander": "^2.11.0"
       }
     },
     "array-includes": {
@@ -150,8 +150,8 @@
       "integrity": "sha1-GEtI9i2S10UrsxsyMWXH+L0CJm0=",
       "dev": true,
       "requires": {
-        "define-properties": "1.1.3",
-        "es-abstract": "1.12.0"
+        "define-properties": "^1.1.2",
+        "es-abstract": "^1.7.0"
       }
     },
     "array-union": {
@@ -160,7 +160,7 @@
       "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
       "dev": true,
       "requires": {
-        "array-uniq": "1.0.3"
+        "array-uniq": "^1.0.1"
       }
     },
     "array-uniq": {
@@ -181,7 +181,7 @@
       "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
       "dev": true,
       "requires": {
-        "safer-buffer": "2.1.2"
+        "safer-buffer": "~2.1.0"
       }
     },
     "assert-plus": {
@@ -235,9 +235,9 @@
       "integrity": "sha1-Y/1D99weO7fONZR9uP42mj9Yx0s=",
       "dev": true,
       "requires": {
-        "chalk": "1.1.3",
-        "esutils": "2.0.2",
-        "js-tokens": "3.0.2"
+        "chalk": "^1.1.3",
+        "esutils": "^2.0.2",
+        "js-tokens": "^3.0.2"
       }
     },
     "babel-eslint": {
@@ -246,10 +246,10 @@
       "integrity": "sha1-sv4tgBJkcPXBlELcdXJTqJdxCCc=",
       "dev": true,
       "requires": {
-        "babel-code-frame": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0",
-        "babylon": "6.18.0"
+        "babel-code-frame": "^6.22.0",
+        "babel-traverse": "^6.23.1",
+        "babel-types": "^6.23.0",
+        "babylon": "^6.17.0"
       }
     },
     "babel-messages": {
@@ -258,7 +258,7 @@
       "integrity": "sha1-8830cDhYA1sqKVHG7F7fbGLyYw4=",
       "dev": true,
       "requires": {
-        "babel-runtime": "6.26.0"
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-runtime": {
@@ -267,8 +267,8 @@
       "integrity": "sha1-llxwWGaOgrVde/4E/yM3vItWR/4=",
       "dev": true,
       "requires": {
-        "core-js": "2.5.7",
-        "regenerator-runtime": "0.11.1"
+        "core-js": "^2.4.0",
+        "regenerator-runtime": "^0.11.0"
       }
     },
     "babel-traverse": {
@@ -277,15 +277,15 @@
       "integrity": "sha1-RqnL1+3MYsjlwGTi0tjQ9ANXZu4=",
       "dev": true,
       "requires": {
-        "babel-code-frame": "6.26.0",
-        "babel-messages": "6.23.0",
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0",
-        "babylon": "6.18.0",
-        "debug": "2.6.9",
-        "globals": "9.18.0",
-        "invariant": "2.2.4",
-        "lodash": "4.17.10"
+        "babel-code-frame": "^6.26.0",
+        "babel-messages": "^6.23.0",
+        "babel-runtime": "^6.26.0",
+        "babel-types": "^6.26.0",
+        "babylon": "^6.18.0",
+        "debug": "^2.6.8",
+        "globals": "^9.18.0",
+        "invariant": "^2.2.2",
+        "lodash": "^4.17.4"
       }
     },
     "babel-types": {
@@ -294,10 +294,10 @@
       "integrity": "sha1-o7Bz+Uq0nrb6Vc1lInozQ4BjJJc=",
       "dev": true,
       "requires": {
-        "babel-runtime": "6.26.0",
-        "esutils": "2.0.2",
-        "lodash": "4.17.10",
-        "to-fast-properties": "1.0.3"
+        "babel-runtime": "^6.26.0",
+        "esutils": "^2.0.2",
+        "lodash": "^4.17.4",
+        "to-fast-properties": "^1.0.3"
       }
     },
     "babylon": {
@@ -319,7 +319,7 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "tweetnacl": "0.14.5"
+        "tweetnacl": "^0.14.3"
       }
     },
     "boom": {
@@ -328,7 +328,7 @@
       "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
       "dev": true,
       "requires": {
-        "hoek": "2.16.3"
+        "hoek": "2.x.x"
       }
     },
     "brace-expansion": {
@@ -337,7 +337,7 @@
       "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
       "dev": true,
       "requires": {
-        "balanced-match": "1.0.0",
+        "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
       }
     },
@@ -359,7 +359,7 @@
       "integrity": "sha1-lAhe9jWB7NPaqSREqP6U6CV3dR8=",
       "dev": true,
       "requires": {
-        "callsites": "0.2.0"
+        "callsites": "^0.2.0"
       }
     },
     "callsites": {
@@ -380,11 +380,11 @@
       "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
       "dev": true,
       "requires": {
-        "ansi-styles": "2.2.1",
-        "escape-string-regexp": "1.0.5",
-        "has-ansi": "2.0.0",
-        "strip-ansi": "3.0.1",
-        "supports-color": "2.0.0"
+        "ansi-styles": "^2.2.1",
+        "escape-string-regexp": "^1.0.2",
+        "has-ansi": "^2.0.0",
+        "strip-ansi": "^3.0.0",
+        "supports-color": "^2.0.0"
       }
     },
     "chardet": {
@@ -405,7 +405,7 @@
       "integrity": "sha1-s12sN2R5+sw+lHR9QdDQ9SOP/LU=",
       "dev": true,
       "requires": {
-        "restore-cursor": "2.0.0"
+        "restore-cursor": "^2.0.0"
       }
     },
     "cli-width": {
@@ -435,7 +435,7 @@
       "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
       "dev": true,
       "requires": {
-        "delayed-stream": "1.0.0"
+        "delayed-stream": "~1.0.0"
       }
     },
     "commander": {
@@ -487,11 +487,11 @@
       "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
       "dev": true,
       "requires": {
-        "nice-try": "1.0.5",
-        "path-key": "2.0.1",
-        "semver": "5.5.1",
-        "shebang-command": "1.2.0",
-        "which": "1.3.1"
+        "nice-try": "^1.0.4",
+        "path-key": "^2.0.1",
+        "semver": "^5.5.0",
+        "shebang-command": "^1.2.0",
+        "which": "^1.2.9"
       }
     },
     "cryptiles": {
@@ -500,7 +500,7 @@
       "integrity": "sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g=",
       "dev": true,
       "requires": {
-        "boom": "2.10.1"
+        "boom": "2.x.x"
       }
     },
     "damerau-levenshtein": {
@@ -515,7 +515,7 @@
       "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
       "dev": true,
       "requires": {
-        "assert-plus": "1.0.0"
+        "assert-plus": "^1.0.0"
       },
       "dependencies": {
         "assert-plus": {
@@ -547,7 +547,7 @@
       "integrity": "sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==",
       "dev": true,
       "requires": {
-        "object-keys": "1.0.12"
+        "object-keys": "^1.0.12"
       }
     },
     "del": {
@@ -556,13 +556,13 @@
       "integrity": "sha1-wSyYHQZ4RshLyvhiz/kw2Qf/0ag=",
       "dev": true,
       "requires": {
-        "globby": "5.0.0",
-        "is-path-cwd": "1.0.0",
-        "is-path-in-cwd": "1.0.1",
-        "object-assign": "4.1.1",
-        "pify": "2.3.0",
-        "pinkie-promise": "2.0.1",
-        "rimraf": "2.6.2"
+        "globby": "^5.0.0",
+        "is-path-cwd": "^1.0.0",
+        "is-path-in-cwd": "^1.0.0",
+        "object-assign": "^4.0.1",
+        "pify": "^2.0.0",
+        "pinkie-promise": "^2.0.0",
+        "rimraf": "^2.2.8"
       }
     },
     "delayed-stream": {
@@ -583,7 +583,7 @@
       "integrity": "sha512-35mSku4ZXK0vfCuHEDAwt55dg2jNajHZ1odvF+8SSr82EsZY4QmXfuWso8oEd8zRhVObSN18aM0CjSdoBX7zIw==",
       "dev": true,
       "requires": {
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@@ -1462,7 +1462,7 @@
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@@ -1575,7 +1575,7 @@
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-        "esprima": "2.7.3"
+        "argparse": "^1.0.7",
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-        "pify": "2.3.0",
-        "strip-bom": "3.0.0"
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-        "lodash._basecreate": "3.0.3",
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-        "lodash.isarguments": "3.1.0",
-        "lodash.isarray": "3.0.4"
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+        "brace-expansion": "^1.1.7"
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+            "graceful-readlink": ">= 1.0.0"
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@@ -1896,12 +1896,12 @@
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-            "once": "1.4.0",
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+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.2",
+            "once": "^1.3.0",
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@@ -1922,7 +1922,7 @@
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@@ -1957,7 +1957,7 @@
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+        "abbrev": "1"
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-        "semver": "5.5.1",
-        "validate-npm-package-license": "3.0.4"
+        "hosted-git-info": "^2.1.4",
+        "is-builtin-module": "^1.0.0",
+        "semver": "2 || 3 || 4 || 5",
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       "dev": true,
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+        "wrappy": "1"
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@@ -2005,7 +2005,7 @@
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+        "mimic-fn": "^1.0.0"
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-        "wordwrap": "0.0.3"
+        "minimist": "~0.0.1",
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-        "wordwrap": "1.0.0"
+        "deep-is": "~0.1.3",
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@@ -2082,7 +2082,7 @@
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@@ -2124,7 +2124,7 @@
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+        "pify": "^2.0.0"
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@@ -2145,7 +2145,7 @@
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+        "pinkie": "^2.0.0"
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       "dev": true,
       "requires": {
-        "find-up": "1.1.2"
+        "find-up": "^1.0.0"
       }
     },
     "pluralize": {
@@ -2181,8 +2181,8 @@
       "integrity": "sha512-3pboPvLiWD7dkI3qf3KbUe6hKFKa52w+AE0VCqECtf+QHAKgOL37tTaNCnuX1nAAQ4ZhyP+kYVKf8rLmJ/feDQ==",
       "dev": true,
       "requires": {
-        "loose-envify": "1.4.0",
-        "object-assign": "4.1.1"
+        "loose-envify": "^1.3.1",
+        "object-assign": "^4.1.1"
       }
     },
     "punycode": {
@@ -2203,9 +2203,9 @@
       "integrity": "sha1-jvHAYjxqbbDcZxPEv6xGMysjaPg=",
       "dev": true,
       "requires": {
-        "load-json-file": "2.0.0",
-        "normalize-package-data": "2.4.0",
-        "path-type": "2.0.0"
+        "load-json-file": "^2.0.0",
+        "normalize-package-data": "^2.3.2",
+        "path-type": "^2.0.0"
       }
     },
     "read-pkg-up": {
@@ -2214,8 +2214,8 @@
       "integrity": "sha1-a3KoBImE4MQeeVEP1en6mbO1Sb4=",
       "dev": true,
       "requires": {
-        "find-up": "2.1.0",
-        "read-pkg": "2.0.0"
+        "find-up": "^2.0.0",
+        "read-pkg": "^2.0.0"
       },
       "dependencies": {
         "find-up": {
@@ -2224,7 +2224,7 @@
           "integrity": "sha1-RdG35QbHF93UgndaK3eSCjwMV6c=",
           "dev": true,
           "requires": {
-            "locate-path": "2.0.0"
+            "locate-path": "^2.0.0"
           }
         }
       }
@@ -2247,26 +2247,26 @@
       "integrity": "sha1-Tf5b9r6LjNw3/Pk+BLZVd3InEN4=",
       "dev": true,
       "requires": {
-        "aws-sign2": "0.6.0",
-        "aws4": "1.8.0",
-        "caseless": "0.11.0",
-        "combined-stream": "1.0.6",
-        "extend": "3.0.2",
-        "forever-agent": "0.6.1",
-        "form-data": "2.1.4",
-        "har-validator": "2.0.6",
-        "hawk": "3.1.3",
-        "http-signature": "1.1.1",
-        "is-typedarray": "1.0.0",
-        "isstream": "0.1.2",
-        "json-stringify-safe": "5.0.1",
-        "mime-types": "2.1.20",
-        "oauth-sign": "0.8.2",
-        "qs": "6.3.2",
-        "stringstream": "0.0.6",
-        "tough-cookie": "2.3.4",
-        "tunnel-agent": "0.4.3",
-        "uuid": "3.3.2"
+        "aws-sign2": "~0.6.0",
+        "aws4": "^1.2.1",
+        "caseless": "~0.11.0",
+        "combined-stream": "~1.0.5",
+        "extend": "~3.0.0",
+        "forever-agent": "~0.6.1",
+        "form-data": "~2.1.1",
+        "har-validator": "~2.0.6",
+        "hawk": "~3.1.3",
+        "http-signature": "~1.1.0",
+        "is-typedarray": "~1.0.0",
+        "isstream": "~0.1.2",
+        "json-stringify-safe": "~5.0.1",
+        "mime-types": "~2.1.7",
+        "oauth-sign": "~0.8.1",
+        "qs": "~6.3.0",
+        "stringstream": "~0.0.4",
+        "tough-cookie": "~2.3.0",
+        "tunnel-agent": "~0.4.1",
+        "uuid": "^3.0.0"
       }
     },
     "require-uncached": {
@@ -2275,8 +2275,8 @@
       "integrity": "sha1-Tg1W1slmL9MeQwEcS5WqSZVUIdM=",
       "dev": true,
       "requires": {
-        "caller-path": "0.1.0",
-        "resolve-from": "1.0.1"
+        "caller-path": "^0.1.0",
+        "resolve-from": "^1.0.0"
       }
     },
     "resolve": {
@@ -2285,7 +2285,7 @@
       "integrity": "sha512-AicPrAC7Qu1JxPCZ9ZgCZlY35QgFnNqc+0LtbRNxnVw4TXvjQ72wnuL9JQcEBgXkI9JM8MsT9kaQoHcpCRJOYA==",
       "dev": true,
       "requires": {
-        "path-parse": "1.0.6"
+        "path-parse": "^1.0.5"
       }
     },
     "resolve-from": {
@@ -2300,8 +2300,8 @@
       "integrity": "sha1-n37ih/gv0ybU/RYpI9YhKe7g368=",
       "dev": true,
       "requires": {
-        "onetime": "2.0.1",
-        "signal-exit": "3.0.2"
+        "onetime": "^2.0.0",
+        "signal-exit": "^3.0.2"
       }
     },
     "rimraf": {
@@ -2310,7 +2310,7 @@
       "integrity": "sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==",
       "dev": true,
       "requires": {
-        "glob": "7.1.3"
+        "glob": "^7.0.5"
       }
     },
     "run-async": {
@@ -2319,7 +2319,7 @@
       "integrity": "sha1-A3GrSuC91yDUFm19/aZP96RFpsA=",
       "dev": true,
       "requires": {
-        "is-promise": "2.1.0"
+        "is-promise": "^2.1.0"
       }
     },
     "rxjs": {
@@ -2328,7 +2328,7 @@
       "integrity": "sha512-hV7criqbR0pe7EeL3O66UYVg92IR0XsA97+9y+BWTePK9SKmEI5Qd3Zj6uPnGkNzXsBywBQWTvujPl+1Kn9Zjw==",
       "dev": true,
       "requires": {
-        "tslib": "1.9.3"
+        "tslib": "^1.9.0"
       }
     },
     "safer-buffer": {
@@ -2349,7 +2349,7 @@
       "integrity": "sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=",
       "dev": true,
       "requires": {
-        "shebang-regex": "1.0.0"
+        "shebang-regex": "^1.0.0"
       }
     },
     "shebang-regex": {
@@ -2370,7 +2370,7 @@
       "integrity": "sha512-POqxBK6Lb3q6s047D/XsDVNPnF9Dl8JSaqe9h9lURl0OdNqy/ujDrOiIHtsqXMGbWWTIomRzAMaTyawAU//Reg==",
       "dev": true,
       "requires": {
-        "is-fullwidth-code-point": "2.0.0"
+        "is-fullwidth-code-point": "^2.0.0"
       }
     },
     "sntp": {
@@ -2379,7 +2379,7 @@
       "integrity": "sha1-ZUEYTMkK7qbG57NeJlkIJEPGYZg=",
       "dev": true,
       "requires": {
-        "hoek": "2.16.3"
+        "hoek": "2.x.x"
       }
     },
     "source-map": {
@@ -2389,7 +2389,7 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "amdefine": "1.0.1"
+        "amdefine": ">=0.0.4"
       }
     },
     "spdx-correct": {
@@ -2398,8 +2398,8 @@
       "integrity": "sha512-N19o9z5cEyc8yQQPukRCZ9EUmb4HUpnrmaL/fxS2pBo2jbfcFRVuFZ/oFC+vZz0MNNk0h80iMn5/S6qGZOL5+g==",
       "dev": true,
       "requires": {
-        "spdx-expression-parse": "3.0.0",
-        "spdx-license-ids": "3.0.1"
+        "spdx-expression-parse": "^3.0.0",
+        "spdx-license-ids": "^3.0.0"
       }
     },
     "spdx-exceptions": {
@@ -2414,8 +2414,8 @@
       "integrity": "sha512-Yg6D3XpRD4kkOmTpdgbUiEJFKghJH03fiC1OPll5h/0sO6neh2jqRDVHOQ4o/LMea0tgCkbMgea5ip/e+MkWyg==",
       "dev": true,
       "requires": {
-        "spdx-exceptions": "2.1.0",
-        "spdx-license-ids": "3.0.1"
+        "spdx-exceptions": "^2.1.0",
+        "spdx-license-ids": "^3.0.0"
       }
     },
     "spdx-license-ids": {
@@ -2436,15 +2436,15 @@
       "integrity": "sha1-xvxhZIo9nE52T9P8306hBeSSupg=",
       "dev": true,
       "requires": {
-        "asn1": "0.2.4",
-        "assert-plus": "1.0.0",
-        "bcrypt-pbkdf": "1.0.2",
-        "dashdash": "1.14.1",
-        "ecc-jsbn": "0.1.2",
-        "getpass": "0.1.7",
-        "jsbn": "0.1.1",
-        "safer-buffer": "2.1.2",
-        "tweetnacl": "0.14.5"
+        "asn1": "~0.2.3",
+        "assert-plus": "^1.0.0",
+        "bcrypt-pbkdf": "^1.0.0",
+        "dashdash": "^1.12.0",
+        "ecc-jsbn": "~0.1.1",
+        "getpass": "^0.1.1",
+        "jsbn": "~0.1.0",
+        "safer-buffer": "^2.0.2",
+        "tweetnacl": "~0.14.0"
       },
       "dependencies": {
         "assert-plus": {
@@ -2461,8 +2461,8 @@
       "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
       "dev": true,
       "requires": {
-        "is-fullwidth-code-point": "2.0.0",
-        "strip-ansi": "4.0.0"
+        "is-fullwidth-code-point": "^2.0.0",
+        "strip-ansi": "^4.0.0"
       },
       "dependencies": {
         "ansi-regex": {
@@ -2477,7 +2477,7 @@
           "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
           "dev": true,
           "requires": {
-            "ansi-regex": "3.0.0"
+            "ansi-regex": "^3.0.0"
           }
         }
       }
@@ -2494,7 +2494,7 @@
       "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
       "dev": true,
       "requires": {
-        "ansi-regex": "2.1.1"
+        "ansi-regex": "^2.0.0"
       }
     },
     "strip-bom": {
@@ -2521,12 +2521,12 @@
       "integrity": "sha512-S7rnFITmBH1EnyKcvxBh1LjYeQMmnZtCXSEbHcH6S0NoKit24ZuFO/T1vDcLdYsLQkM188PVVhQmzKIuThNkKg==",
       "dev": true,
       "requires": {
-        "ajv": "6.5.3",
-        "ajv-keywords": "3.2.0",
-        "chalk": "2.4.1",
-        "lodash": "4.17.10",
+        "ajv": "^6.0.1",
+        "ajv-keywords": "^3.0.0",
+        "chalk": "^2.1.0",
+        "lodash": "^4.17.4",
         "slice-ansi": "1.0.0",
-        "string-width": "2.1.1"
+        "string-width": "^2.1.1"
       },
       "dependencies": {
         "ansi-styles": {
@@ -2535,7 +2535,7 @@
           "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
           "dev": true,
           "requires": {
-            "color-convert": "1.9.3"
+            "color-convert": "^1.9.0"
           }
         },
         "chalk": {
@@ -2544,9 +2544,9 @@
           "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
           "dev": true,
           "requires": {
-            "ansi-styles": "3.2.1",
-            "escape-string-regexp": "1.0.5",
-            "supports-color": "5.5.0"
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
           }
         },
         "supports-color": {
@@ -2555,7 +2555,7 @@
           "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
           "dev": true,
           "requires": {
-            "has-flag": "3.0.0"
+            "has-flag": "^3.0.0"
           }
         }
       }
@@ -2578,7 +2578,7 @@
       "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
       "dev": true,
       "requires": {
-        "os-tmpdir": "1.0.2"
+        "os-tmpdir": "~1.0.2"
       }
     },
     "to-fast-properties": {
@@ -2593,7 +2593,7 @@
       "integrity": "sha512-TZ6TTfI5NtZnuyy/Kecv+CnoROnyXn2DN97LontgQpCwsX2XyLYCC0ENhYkehSOwAp8rTQKc/NUIF7BkQ5rKLA==",
       "dev": true,
       "requires": {
-        "punycode": "1.4.1"
+        "punycode": "^1.4.1"
       }
     },
     "tslib": {
@@ -2621,7 +2621,7 @@
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
       "dev": true,
       "requires": {
-        "prelude-ls": "1.1.2"
+        "prelude-ls": "~1.1.2"
       }
     },
     "uglify-js": {
@@ -2631,8 +2631,8 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "commander": "2.17.1",
-        "source-map": "0.6.1"
+        "commander": "~2.17.1",
+        "source-map": "~0.6.1"
       },
       "dependencies": {
         "commander": {
@@ -2657,7 +2657,7 @@
       "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
       "dev": true,
       "requires": {
-        "punycode": "2.1.1"
+        "punycode": "^2.1.0"
       },
       "dependencies": {
         "punycode": {
@@ -2680,8 +2680,8 @@
       "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
       "dev": true,
       "requires": {
-        "spdx-correct": "3.0.0",
-        "spdx-expression-parse": "3.0.0"
+        "spdx-correct": "^3.0.0",
+        "spdx-expression-parse": "^3.0.0"
       }
     },
     "verror": {
@@ -2690,9 +2690,9 @@
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
       "dev": true,
       "requires": {
-        "assert-plus": "1.0.0",
+        "assert-plus": "^1.0.0",
         "core-util-is": "1.0.2",
-        "extsprintf": "1.3.0"
+        "extsprintf": "^1.2.0"
       },
       "dependencies": {
         "assert-plus": {
@@ -2709,7 +2709,7 @@
       "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
       "dev": true,
       "requires": {
-        "isexe": "2.0.0"
+        "isexe": "^2.0.0"
       }
     },
     "wordwrap": {
@@ -2730,7 +2730,7 @@
       "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
       "dev": true,
       "requires": {
-        "mkdirp": "0.5.1"
+        "mkdirp": "^0.5.1"
       }
     },
     "xtend": {
diff --git a/tests/lib/rules/sort-styles.js b/tests/lib/rules/sort-styles.js
new file mode 100644
index 0000000..1259d8e
--- /dev/null
+++ b/tests/lib/rules/sort-styles.js
@@ -0,0 +1,176 @@
+/**
+ * @fileoverview Require StyleSheet object keys to be sorted
+ * @author Mats Byrkjeland
+ */
+
+'use strict';
+
+// ------------------------------------------------------------------------------
+// Requirements
+// ------------------------------------------------------------------------------
+
+const rule = require('../../../lib/rules/sort-styles');
+const RuleTester = require('eslint').RuleTester;
+
+require('babel-eslint');
+
+// ------------------------------------------------------------------------------
+// Tests
+// ------------------------------------------------------------------------------
+
+const ruleTester = new RuleTester();
+const tests = {
+  valid: [
+    {
+      code: `
+        const styles = StyleSheet.create({
+          a: {},
+          b: {},
+          c: {},
+        });
+      `,
+    },
+    {
+      code: `
+        const styles = {
+          c: {},
+          b: {},
+          a: {},
+        }
+      `,
+    },
+    {
+      code: `
+        const styles = StyleSheet.create({
+          a: {
+            x: 1,
+            y: 2,
+            z: 3,
+          },
+        })
+      `,
+    },
+    {
+      code: `
+        const styles = StyleSheet.create({
+          a: {
+            x: 1,
+            y: 2,
+          },
+          b: {
+            a: 1,
+            b: 2,
+          },
+        })
+      `,
+    },
+    {
+      code: `
+        const styles = StyleSheet.create({
+          b: {
+            y: 1,
+            x: 2,
+          },
+          a: {
+            b: 1,
+            a: 2,
+          },
+        })
+      `,
+      options: ['desc'],
+    },
+    {
+      code: `
+        const styles = StyleSheet.create({
+          b: {
+            y: 1,
+            x: 2,
+          },
+          a: {
+            b: 1,
+            a: 2,
+          },
+        })
+      `,
+      options: ['asc', { ignoreClassNames: true, ignoreStyleProperties: true }],
+    },
+    {
+      code: `
+        const styles = StyleSheet.create({
+          headerWrapper: {
+              backgroundColor: COLORS.WHITE,
+              marginTop: -350,
+              padding: UNITS.BASE_UNIT * 3,
+              paddingTop: 375,
+          },
+          bodyWrapper: {
+              padding: UNITS.BASE_UNIT * 3,
+          },
+          voidMessageWrapper: {
+              marginTop: 20,
+          },
+          headerMeta: {
+              paddingBottom: 10,
+              paddingTop: 20,
+          },
+          bigText: {
+              fontSize: 22,
+              fontWeight: '600',
+          },
+        })
+      `,
+      options: ['asc', { ignoreClassNames: true }],
+    },
+  ],
+  invalid: [
+    {
+      code: `
+        const styles = StyleSheet.create({
+          myClass: {
+            y: 2,
+            x: 1,
+            z: 3,
+          },
+        })
+        `,
+      errors: [{
+        message: 'Expected style properties to be in ascending order. \'x\' should be before \'y\'.',
+      }],
+    },
+    {
+      code: `
+        const styles = StyleSheet.create({
+          b: {
+            x: 1,
+            y: 2,
+          },
+          a: {
+            a: 1,
+            b: 2,
+          },
+        })
+      `,
+      errors: [{
+        message: 'Expected class names to be in ascending order. \'a\' should be before \'b\'.',
+      }],
+    },
+  ],
+};
+
+const config = {
+  parser: 'babel-eslint',
+  parserOptions: {
+    ecmaFeatures: {
+      classes: true,
+      jsx: true,
+    },
+  },
+  settings: {
+    'react-native/style-sheet-object-names': ['StyleSheet', 'OtherStyleSheet'],
+  },
+};
+
+tests.valid.forEach(t => Object.assign(t, config));
+tests.invalid.forEach(t => Object.assign(t, config));
+
+ruleTester.run('no-unused-styles', rule, tests);