use supplied connection params in new tests

Author: brianc

test/integration/client/query-error-handling-tests.js

@@ -2,15 +2,15 @@ var helper = require(__dirname + '/test-helper');
 var util = require('util');
 
 test('error during query execution', function() {
-  var client = new Client();
+  var client = new Client(helper.args);
   client.connect(assert.success(function() {
     var sleepQuery = 'select pg_sleep(5)';
     client.query(sleepQuery, assert.calls(function(err, result) {
       assert(err);
       client.end();
       assert.emits(client, 'end');
     }));
-    var client2 = new Client();
+    var client2 = new Client(helper.args);
     client2.connect(assert.success(function() {
 var killIdleQuery = "SELECT procpid, (SELECT pg_terminate_backend(procpid)) AS killed FROM pg_stat_activity WHERE current_query = $1";
       client2.query(killIdleQuery, [sleepQuery], assert.calls(function(err, res) {