initial work on binding

lib/client.js

@@ -129,6 +129,24 @@ p.parse = function(query) {
   return this;
 };
 
+p.bind = function(config) {
+  //normalize config
+  config = config || {};
+  config.portalName = config.portalName || '';
+  config.statementName = config.statementName || '';
+  config.values = config.values || [];
+  var buffer = new BufferList()
+    .addCString(config.portalName)
+    .addCString(config.statementName)
+    .addInt16(0) //always use default text format
+    .addInt16(0); //number of parameters
+  if(config.values.length > 0) {
+    sys.debug("Not supporting parameters yet");
+  }
+  buffer.addInt16(0); //no format codes, use text
+  this.send('B', buffer.join());
+};
+
 p.pulseQueryQueue = function(ready) {
   if(!this.readyForQuery) {
     return;

test/unit/parser-tests.js

@@ -10,6 +10,7 @@ var readyForQueryBuffer = buffers.readyForQuery();
 var backendKeyDataBuffer = buffers.backendKeyData(1,2);
 var commandCompleteBuffer = buffers.commandComplete("SELECT 3");
 
+
 var addRow = function(bufferList, name, offset) {
   return bufferList.addCString(name) //field name
     .addInt32(offset++) //table id

test/unit/prepared-query-tests.js

@@ -40,7 +40,21 @@ test('prepared queries', function() {
   //server raises parse complete message
 
   test('sends bind message', function() {
-    return false;
+    
+    test('binding to unnamed prepared statement with no values', function() {
+      
+      client.bind();
+      assert.length(client.stream.packets, 1);
+      var packet = client.stream.packets.pop();
+      var expectedBuffer = new BufferList()
+        .addCString("")
+        .addCString("")
+        .addInt16(0)
+        .addInt16(0)
+        .addInt16(0).join(true,"B");
+      assert.equalBuffers(packet, expectedBuffer);
+    });
+
   });
 
   test('recieves rows', function() {