From 4da7e7f5169b95d67071c1908ce83c90daff5628 Mon Sep 17 00:00:00 2001
From: Anthony Laibe <anthony@laibe.cc>
Date: Thu, 9 Aug 2018 13:52:41 +0100
Subject: [PATCH 1/2] Fix fuzzer while profiling

---
 lib/modules/profiler/fuzzer.js | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/lib/modules/profiler/fuzzer.js b/lib/modules/profiler/fuzzer.js
index 6e11e8e1e..22d2ca903 100644
--- a/lib/modules/profiler/fuzzer.js
+++ b/lib/modules/profiler/fuzzer.js
@@ -1,5 +1,4 @@
 const utils = require('web3-utils');
-
 const u = require('../../utils/utils.js');
 
 // generates random inputs based on the inputs of an ABI
@@ -11,7 +10,7 @@ class ContractFuzzer {
   }
 
   // main function to call, takes in iteration number and a contract and returns a map object
-  // composed of method names -> fuzzed inputs. 
+  // composed of method names -> fuzzed inputs.
   generateFuzz(iterations, contract) {
     const self = this;
     let fuzzMap = {};
@@ -52,10 +51,10 @@ class ContractFuzzer {
       case kind == "bool":
         return self.generateRandomBool();
       case kind == "uint" || kind == "int":
-        return self.generateRandomInt(size);
-      case kind === "bytes" && size !== undefined:
-        return self.generateRandomStaticBytes(size);
-      case kind === "string" || kind === "bytes":
+        return self.generateRandomInt(size || 256);
+      case kind === "bytes":
+        return self.generateRandomStaticBytes(size || 32);
+      case kind === "string":
         return self.generateRandomDynamicType();
       case kind === "address":
         return self.generateRandomAddress();
@@ -79,11 +78,11 @@ class ContractFuzzer {
   }
 
   generateRandomStaticBytes(size) {
-    return utils.randomHex(size);
+    return utils.randomHex(parseInt(size, 10));
   }
 
   generateRandomInt(size) {
-    return utils.toBN(utils.randomHex(size / 8));
+    return utils.toBN(utils.randomHex(parseInt(size, 10) / 8));
   }
 
   generateRandomAddress() {

From 3e07469680af5d242f53498a9680020110626c0e Mon Sep 17 00:00:00 2001
From: Jonathan Rainville <rainville.jonathan@gmail.com>
Date: Thu, 9 Aug 2018 10:07:46 -0400
Subject: [PATCH 2/2] add error if no default account because of metamask

---
 templates/demo/app/components/ens.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/templates/demo/app/components/ens.js b/templates/demo/app/components/ens.js
index 5b87e3464..0167bfcdc 100644
--- a/templates/demo/app/components/ens.js
+++ b/templates/demo/app/components/ens.js
@@ -25,8 +25,13 @@ class ENS extends React.Component {
     };
   }
 
-  componentWillMount() {
+  componentDidMount() {
     EmbarkJS.onReady(() => {
+      if (!web3.eth.defaultAccount) {
+        this.setState({
+          globalError: 'There is currently no default account. If Metamask is active, please sign in or deactivate it.'
+        });
+      }
       this.setState({
         addressRegister: web3.eth.defaultAccount,
         valueLookup: web3.eth.defaultAccount
@@ -102,6 +107,7 @@ class ENS extends React.Component {
 
   render() {
     return (<React.Fragment>
+        {this.state.globalError && <Alert bsStyle="danger">{this.state.globalError}</Alert>}
         <h3>Resolve a name</h3>
         <Form inline>
           <FormGroup>