From 9ece2f78edd921a9d3761095e4503c32cff30261 Mon Sep 17 00:00:00 2001
From: Eric Martindale <eric@ericmartindale.com>
Date: Tue, 24 Mar 2015 16:28:13 -0400
Subject: [PATCH 1/3] Fix bug if no value is supplied.

---
 lib/networks.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/networks.js b/lib/networks.js
index 51062f060..5e47b6c6a 100644
--- a/lib/networks.js
+++ b/lib/networks.js
@@ -75,7 +75,7 @@ function addNetwork(data) {
   });
 
   _.each(_.values(network), function(value) {
-    if (!_.isObject(value)) {
+    if (value && !_.isObject(value)) {
       networkMaps[value] = network;
     }
   });

From a7d75cb25bf7993aaf298713edc57972ecd650b3 Mon Sep 17 00:00:00 2001
From: Eric Martindale <eric@ericmartindale.com>
Date: Tue, 24 Mar 2015 16:38:02 -0400
Subject: [PATCH 2/3] Add test for patch.

---
 test/networks.js | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/test/networks.js b/test/networks.js
index ddcd07a59..21c05c5c8 100644
--- a/test/networks.js
+++ b/test/networks.js
@@ -40,6 +40,25 @@ describe('Networks', function() {
       }
     }
   });
+  
+  it('should not set a network map for an undefined value', function() {
+    var custom = {
+      name: 'somenet',
+      pubkeyhash: 0x13,
+      privatekey: 0x93,
+      scripthash: 0x11,
+      xpubkey:  0x0278b20f,
+      xprivkey: 0x0278ade5,
+      networkMagic: 0xe7beb4d5,
+      port: 20008,
+      dnsSeeds: [
+        'somenet.localhost'
+      ]
+    };
+    networks.add(custom);
+    var network = networks.get(undefined);
+    should.not.exist( network );
+  });
 
   var constants = ['name', 'alias', 'pubkeyhash', 'scripthash', 'xpubkey', 'xprivkey'];
 

From c7594013735a0ee8ef312b8bc6d5ca1df35e17af Mon Sep 17 00:00:00 2001
From: Eric Martindale <eric@ericmartindale.com>
Date: Tue, 24 Mar 2015 17:57:39 -0400
Subject: [PATCH 3/3] Fix tests, address commentary from @braydonf.

---
 lib/networks.js  | 2 +-
 test/networks.js | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/networks.js b/lib/networks.js
index 5e47b6c6a..96e6176f2 100644
--- a/lib/networks.js
+++ b/lib/networks.js
@@ -75,7 +75,7 @@ function addNetwork(data) {
   });
 
   _.each(_.values(network), function(value) {
-    if (value && !_.isObject(value)) {
+    if (!_.isUndefined(value) && !_.isObject(value)) {
       networkMaps[value] = network;
     }
   });
diff --git a/test/networks.js b/test/networks.js
index 21c05c5c8..d019479ba 100644
--- a/test/networks.js
+++ b/test/networks.js
@@ -20,7 +20,7 @@ describe('Networks', function() {
       pubkeyhash: 0x10,
       privatekey: 0x90,
       scripthash: 0x08,
-      xpubkey:  0x0278b20e,
+      xpubkey: 0x0278b20e,
       xprivkey: 0x0278ade4,
       networkMagic: 0xe7beb4d4,
       port: 20001,
@@ -47,7 +47,7 @@ describe('Networks', function() {
       pubkeyhash: 0x13,
       privatekey: 0x93,
       scripthash: 0x11,
-      xpubkey:  0x0278b20f,
+      xpubkey: 0x0278b20f,
       xprivkey: 0x0278ade5,
       networkMagic: 0xe7beb4d5,
       port: 20008,
@@ -57,7 +57,7 @@ describe('Networks', function() {
     };
     networks.add(custom);
     var network = networks.get(undefined);
-    should.not.exist( network );
+    should.not.exist(network);
   });
 
   var constants = ['name', 'alias', 'pubkeyhash', 'scripthash', 'xpubkey', 'xprivkey'];