random words generator using sjcl and first working jest unit tests

__tests__/index.android.js

 import React from 'react';
-import { View } from 'react-native'
-import Index from '../index.android.js';
+import 'react-native'
+import App from '../src/components/App'
 
 // Note: test renderer must be required after react-native.
 import renderer from 'react-test-renderer';
 
 it('renders correctly', () => {
   const tree = renderer.create(
-    <View/>
+    <App/>
   )
 });

__tests__/index.ios.js

 import React from 'react';
-import { View } from 'react-native'
-import Index from '../index.ios.js'
+import 'react-native'
+import App from '../src/components/App'
 
 // Note: test renderer must be required after react-native.
 import renderer from 'react-test-renderer';
 
 it('renders correctly', () => {
   const tree = renderer.create(
-    <Index/>
+    <App/>
   )
 });

android/app/build.gradle

@@ -126,6 +126,7 @@ android {
 }
 
 dependencies {
+    compile project(':react-native-randombytes')
     compile project(':react-native-camera')
     compile fileTree(dir: "libs", include: ["*.jar"])
     compile "com.android.support:appcompat-v7:23.0.1"

android/app/src/main/java/com/nativesigner/MainApplication.java

@@ -4,6 +4,7 @@ import android.app.Application;
 import android.util.Log;
 
 import com.facebook.react.ReactApplication;
+import com.bitgo.randombytes.RandomBytesPackage;
 import com.lwansbrough.RCTCamera.RCTCameraPackage;
 import com.facebook.react.ReactInstanceManager;
 import com.facebook.react.ReactNativeHost;
@@ -26,6 +27,7 @@ public class MainApplication extends Application implements ReactApplication {
     protected List<ReactPackage> getPackages() {
       return Arrays.<ReactPackage>asList(
           new MainReactPackage(),
+            new RandomBytesPackage(),
             new RCTCameraPackage()
       );
     }

android/settings.gradle

 rootProject.name = 'NativeSigner'
+include ':react-native-randombytes'
+project(':react-native-randombytes').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-randombytes/android')
 include ':react-native-camera'
 project(':react-native-camera').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-camera/android')
 

ios/NativeSigner.xcodeproj/project.pbxproj

@@ -25,6 +25,8 @@
 		5E9157361DD0AC6A00FF2AA8 /* libRCTAnimation.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5E9157331DD0AC6500FF2AA8 /* libRCTAnimation.a */; };
 		832341BD1AAA6AB300B99B32 /* libRCTText.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 832341B51AAA6A8300B99B32 /* libRCTText.a */; };
 		8E82ABE6A351418899C5974A /* libRCTCamera.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 0462DF64F1D24C8E8B6E90B1 /* libRCTCamera.a */; };
+		AA0792CD4D7F417B8C8D17CF /* libRNRandomBytes.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 24A2115276994AD5AED9321A /* libRNRandomBytes.a */; };
+		EAB49CE81E482E090066C283 /* libRNRandomBytes.a in Frameworks */ = {isa = PBXBuildFile; fileRef = EAB49CE71E482DBF0066C283 /* libRNRandomBytes.a */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -217,6 +219,13 @@
 			remoteGlobalIDString = 4107012F1ACB723B00C6AA39;
 			remoteInfo = RCTCamera;
 		};
+		EAB49CE61E482DBF0066C283 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 47092C944A6546D5A864B424 /* RNRandomBytes.xcodeproj */;
+			proxyType = 2;
+			remoteGlobalIDString = 73EEC9391BFE4B1D00D468EB;
+			remoteInfo = RNRandomBytes;
+		};
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
@@ -240,6 +249,8 @@
 		13B07FB61A68108700A75B9A /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = Info.plist; path = NativeSigner/Info.plist; sourceTree = "<group>"; };
 		13B07FB71A68108700A75B9A /* main.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = main.m; path = NativeSigner/main.m; sourceTree = "<group>"; };
 		146833FF1AC3E56700842450 /* React.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = React.xcodeproj; path = "../node_modules/react-native/React/React.xcodeproj"; sourceTree = "<group>"; };
+		24A2115276994AD5AED9321A /* libRNRandomBytes.a */ = {isa = PBXFileReference; explicitFileType = undefined; fileEncoding = 9; includeInIndex = 0; lastKnownFileType = archive.ar; path = libRNRandomBytes.a; sourceTree = "<group>"; };
+		47092C944A6546D5A864B424 /* RNRandomBytes.xcodeproj */ = {isa = PBXFileReference; explicitFileType = undefined; fileEncoding = 9; includeInIndex = 0; lastKnownFileType = "wrapper.pb-project"; name = RNRandomBytes.xcodeproj; path = "../node_modules/react-native-randombytes/RNRandomBytes.xcodeproj"; sourceTree = "<group>"; };
 		5E91572D1DD0AC6500FF2AA8 /* RCTAnimation.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = RCTAnimation.xcodeproj; path = "../node_modules/react-native/Libraries/NativeAnimation/RCTAnimation.xcodeproj"; sourceTree = "<group>"; };
 		78C398B01ACF4ADC00677621 /* RCTLinking.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = RCTLinking.xcodeproj; path = "../node_modules/react-native/Libraries/LinkingIOS/RCTLinking.xcodeproj"; sourceTree = "<group>"; };
 		821AED75338B40468A2A8B7A /* RCTCamera.xcodeproj */ = {isa = PBXFileReference; explicitFileType = undefined; fileEncoding = 9; includeInIndex = 0; lastKnownFileType = "wrapper.pb-project"; name = RCTCamera.xcodeproj; path = "../node_modules/react-native-camera/ios/RCTCamera.xcodeproj"; sourceTree = "<group>"; };
@@ -251,6 +262,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				EAB49CE81E482E090066C283 /* libRNRandomBytes.a in Frameworks */,
 				140ED2AC1D01E1AD002B40FF /* libReact.a in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -271,6 +283,7 @@
 				00C302EA1ABCBA2D00DB3ED1 /* libRCTVibration.a in Frameworks */,
 				139FDEF61B0652A700C62182 /* libRCTWebSocket.a in Frameworks */,
 				8E82ABE6A351418899C5974A /* libRCTCamera.a in Frameworks */,
+				AA0792CD4D7F417B8C8D17CF /* libRNRandomBytes.a in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -416,6 +429,7 @@
 				00C302DF1ABCB9EE00DB3ED1 /* RCTVibration.xcodeproj */,
 				139FDEE61B06529A00C62182 /* RCTWebSocket.xcodeproj */,
 				821AED75338B40468A2A8B7A /* RCTCamera.xcodeproj */,
+				47092C944A6546D5A864B424 /* RNRandomBytes.xcodeproj */,
 			);
 			name = Libraries;
 			sourceTree = "<group>";
@@ -458,6 +472,14 @@
 			name = Products;
 			sourceTree = "<group>";
 		};
+		EAB49CC91E482DBE0066C283 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				EAB49CE71E482DBF0066C283 /* libRNRandomBytes.a */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -576,6 +598,10 @@
 					ProductGroup = 146834001AC3E56700842450 /* Products */;
 					ProjectRef = 146833FF1AC3E56700842450 /* React.xcodeproj */;
 				},
+				{
+					ProductGroup = EAB49CC91E482DBE0066C283 /* Products */;
+					ProjectRef = 47092C944A6546D5A864B424 /* RNRandomBytes.xcodeproj */;
+				},
 			);
 			projectRoot = "";
 			targets = (
@@ -768,6 +794,13 @@
 			remoteRef = EA75C3411E3F45880098CCC9 /* PBXContainerItemProxy */;
 			sourceTree = BUILT_PRODUCTS_DIR;
 		};
+		EAB49CE71E482DBF0066C283 /* libRNRandomBytes.a */ = {
+			isa = PBXReferenceProxy;
+			fileType = archive.ar;
+			path = libRNRandomBytes.a;
+			remoteRef = EAB49CE61E482DBF0066C283 /* PBXContainerItemProxy */;
+			sourceTree = BUILT_PRODUCTS_DIR;
+		};
 /* End PBXReferenceProxy section */
 
 /* Begin PBXResourcesBuildPhase section */
@@ -862,6 +895,7 @@
 				LIBRARY_SEARCH_PATHS = (
 					"$(inherited)",
 					"\"$(SRCROOT)/$(TARGET_NAME)\"",
+					"\"$(SRCROOT)/$(TARGET_NAME)\"",
 				);
 				OTHER_LDFLAGS = "-lc++";
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -881,6 +915,7 @@
 				LIBRARY_SEARCH_PATHS = (
 					"$(inherited)",
 					"\"$(SRCROOT)/$(TARGET_NAME)\"",
+					"\"$(SRCROOT)/$(TARGET_NAME)\"",
 				);
 				OTHER_LDFLAGS = "-lc++";
 				PRODUCT_NAME = "$(TARGET_NAME)";

package.json

@@ -13,7 +13,8 @@
     "react-native-router-flux": "^3.37.0",
     "react-native-tabs": "^1.0.9",
     "react-redux": "^5.0.2",
-    "redux": "^3.6.0"
+    "redux": "^3.6.0",
+    "sjcl": "^1.0.6"
   },
   "devDependencies": {
     "babel-jest": "18.0.0",
@@ -24,6 +25,8 @@
   },
   "jest": {
     "preset": "react-native",
-    "setupFiles": ["<rootDir>/jest-setup.js"]
+    "setupFiles": [
+      "<rootDir>/jest-setup.js"
+    ]
   }
 }

src/actions/words.js

-//import words from '../../res/words.json'
+import sjcl from 'sjcl'
+import words from '../../res/words.json'
 
-//export default function random() {
-  //var buf = new Uint16Array(11)
-  //crypto.getRandomValues(buf)
-  //buf.map(n => words[n % words.length]).join(' ')
-//}
+export function random() {
+  let count = 11
+  let paranoia = 10
+  let buf = sjcl.random.randomWords(count, paranoia)
+  return buf.map(n => words[Math.abs(n) % words.length]).join(' ')
+}

src/actions/words.spec.js

+import { random } from './words'
+
+describe('words', () => {
+  it('should create a list of 10 random words', () => {
+    let randomWords = random()
+    let count = randomWords.split(' ').length
+    expect(count).toEqual(11)
+  })
+})