support running integration tests against a specific version

test/integration/yaml_suite/client_manager.js

@@ -23,7 +23,7 @@ var client = null;
 var externalExists;
 
 module.exports = {
-  create: function create(branch, cb) {
+  create: function create(apiVersion, cb) {
     // create a client and ping the server for up to 15 seconds
     doCreateClient({
       logConfig: null
@@ -89,7 +89,7 @@ module.exports = {
       }
 
       client = new es.Client({
-        apiVersion: branch,
+        apiVersion: apiVersion,
         hosts: [
           {
             host: argv.host,

test/integration/yaml_suite/run.js

@@ -17,7 +17,15 @@ module.exports = function (branch) {
     before(function (done) {
       // start our personal ES Server
       this.timeout(5 * 60 * 1000);
-      clientManager.create(branch, done);
+
+      var apiVersion = branch;
+      var match;
+      if (match = apiVersion.match(/^v(\d+\.\d+)\.\d+$/)) {
+        apiVersion = match[1];
+      }
+
+      console.log('testing branch', branch, 'against api version', apiVersion);
+      clientManager.create(apiVersion, done);
     });
 
     before(function (done) {