diff --git a/lib/plugins.js b/lib/plugins.js
index d586b9ea..c8dbc850 100644
--- a/lib/plugins.js
+++ b/lib/plugins.js
@@ -37,7 +37,7 @@ exports.init = function init(databaseHandle) {
   }
 
   db = databaseHandle;
-}
+};
 
 
 function loadPlugin(name, config) {
@@ -91,7 +91,7 @@ function loadPlugin(name, config) {
 
 
   return plugin;
-};
+}
 
 
 exports.configure = function configure(config) {
@@ -100,7 +100,7 @@ exports.configure = function configure(config) {
   }
 
   deviceCurrency = config.exchanges.settings.currency;
-  var plugins = config.exchanges.plugins
+  var plugins = config.exchanges.plugins;
 
   // [required] configure (or load) ticker
   var tickerName = plugins.current.ticker;
@@ -272,7 +272,7 @@ function stopPolling() {
   clearInterval(balanceInterval);
   clearInterval(rateInterval);
   // clearInterval(tradeInterval); // TODO: should this get cleared too?
-};
+}
 
 
 function pollBalance(callback) {
@@ -300,7 +300,7 @@ function pollBalance(callback) {
 
     return callback && callback(null, lastBalances);
   });
-};
+}
 
 function pollRate(callback) {
   logger.debug('polling for rates');
@@ -317,7 +317,7 @@ function pollRate(callback) {
 
     return callback && callback(null, lastRates);
   });
-};
+}
 
 
 /*
@@ -330,7 +330,7 @@ function getLastRate(currency) {
   if (!lastRates[tmpCurrency]) return null;
 
   return lastRates[tmpCurrency];
-};
+}
 exports.getDeviceRate = function getDeviceRate() {
   return getLastRate(deviceCurrency);
 };
@@ -347,19 +347,19 @@ function clearSession(deviceFingerprint) {
     clearTimeout(session.reaper);
     delete sessions[deviceFingerprint];
   }
-};
+}
 
 
 /*
  * Trader functions
  */
 function purchase(trade, callback) {
-  traderPlugin.purchase(trade.satoshis, null, function(err, _) {
+  traderPlugin.purchase(trade.satoshis, null, function(err) {
     if (err) return callback(err);
     pollBalance();
-    callback && callback();
+    if (typeof callback === 'function') callback();
   });
-};
+}
 
 function consolidateTrades() {
   // NOTE: value in satoshis stays the same no matter the currency
@@ -374,7 +374,7 @@ function consolidateTrades() {
 
   logger.debug('consolidated: ', JSON.stringify(consolidatedTrade));
   return consolidatedTrade;
-};
+}
 
 function executeTrades() {
   if (!traderPlugin) return;
@@ -395,7 +395,7 @@ function executeTrades() {
       logger.error(err);
     }
   });
-};
+}
 
 /*
  * ID Verifier functions
@@ -405,5 +405,5 @@ exports.verifyUser = function verifyUser(data, callback) {
 };
 
 exports.verifyTransaction = function verifyTransaction(data, callback) {
-  idVerifier.verifyTransaction(data, callback);
+  idVerifierPlugin.verifyTransaction(data, callback);
 };
diff --git a/test/index.js b/test/index.js
index b3a92617..1a6e9c79 100644
--- a/test/index.js
+++ b/test/index.js
@@ -1,4 +1,6 @@
-'use strict'
+/* global describe, it, before, afterEach */
+
+'use strict';
 
 var _       = require('lodash');
 var should  = require('chai').should();
@@ -9,11 +11,9 @@ var config = require('./mocks/config');
 var CONFIG = _.cloneDeep(config);
 function requireFreshConfig() {
   return _.cloneDeep(CONFIG);
-};
+}
 
 
-var currents = config.exchanges.plugins.current;
-
 var walletMock = require('./mocks/wallet');
 var tickerMock = require('./mocks/ticker');
 var traderMock = require('./mocks/trader');
@@ -51,11 +51,11 @@ describe('Plugins', function() {
   });
 
   it('should throw when invalid balance margin', function() {
-    config.exchanges.settings.lowBalanceMargin = .99;
+    config.exchanges.settings.lowBalanceMargin = 0.99;
 
     function configurer() {
       plugins.configure(config);
-    };
+    }
     configurer.should.throw(/lowBalanceMargin/);
   });
 
@@ -64,7 +64,7 @@ describe('Plugins', function() {
 
     function configurer() {
       plugins.configure(config);
-    };
+    }
     configurer.should.throw(/module.*not installed/);
   });
 
@@ -74,7 +74,7 @@ describe('Plugins', function() {
 
     function configurer() {
       plugins.configure(config);
-    };
+    }
     configurer.should.throw(/required.*SUPPORTED_MODULES/);
 
     tickerMock.SUPPORTED_MODULES = tmp;
@@ -86,7 +86,7 @@ describe('Plugins', function() {
 
     function configurer() {
       plugins.configure(config);
-    };
+    }
     configurer.should.throw(/fails.*implement.*method/);
 
     tickerMock.ticker = tmp;
@@ -97,12 +97,14 @@ describe('Plugins', function() {
 
     before(function() {
       function configTest(name) {
-        return function config(config) {
+        return function config(localConfig) {
           should.exist(config);
-          config.should.be.an.Object;
+          /* jshint expr: true */
+          localConfig.should.be.an.Object;
+          /* jshint expr: true */
           confList[name] = config;
         };
-      };
+      }
 
       walletMock.config   = configTest('wallet');
       tickerMock.config   = configTest('ticker');
@@ -116,7 +118,9 @@ describe('Plugins', function() {
       it('should configure ' + name, function() {
         confList.should.have.property(name);
         should.exist(confList[name]);
+        /* jshint expr: true */
         confList[name].should.be.an.Object;
+        /* jshint expr: true */
       });
     });