Behat: Copy fixture identifier to "Name" or "Title" by default

This makes fixture setup less verbose, particularly for behat
tests (e.g. with "Given a page 'About Us'")

dev/BehatFixtureFactory.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * @package framework
+ * @subpackage testing
+ */
+class BehatFixtureFactory extends \FixtureFactory {
+    public function createObject($name, $identifier, $data = null) {
+        if(!$data) $data = array();
+
+        // Copy identifier to some visible property unless its already defined.
+        // Exclude files, since they generate their own named based on the file path.
+        if(!is_a($name, 'File', true)) {
+            foreach(array('Name', 'Title') as $fieldName) {
+                if(singleton($name)->hasField($fieldName) && !isset($data[$fieldName])) {
+                    $data[$fieldName] = $identifier;
+                    break;
+                }
+            }    
+        }
+
+        return parent::createObject($name, $identifier, $data);
+    }
+}

dev/FixtureBlueprint.php

@@ -115,6 +115,7 @@ class FixtureBlueprint {
 
 				$this->setValue($obj, $fieldName, $fieldVal, $fixtures);
 			}
+
 			$obj->write();
 
 			// Save to fixture before relationship processing in case of reflexive relationships

tests/behat/features/bootstrap/FeatureContext.php

@@ -45,6 +45,14 @@ class FeatureContext extends SilverStripeContext
 		$fixtureContext = new FixtureContext($parameters);
 		$fixtureContext->setFixtureFactory($this->getFixtureFactory());
 		$this->useContext('FixtureContext', $fixtureContext);
+
+		// Use blueprints to set user name from identifier
+    $factory = $fixtureContext->getFixtureFactory();
+    $blueprint = \Injector::inst()->create('FixtureBlueprint', 'Member');
+    $blueprint->addCallback('beforeCreate', function($identifier, &$data, &$fixtures) {
+        if(!isset($data['FirstName'])) $data['FirstName'] = $identifier;
+    });
+    $factory->define('Member', $blueprint);
 	}
 
 	public function setMinkParameters(array $parameters)
@@ -61,7 +69,7 @@ class FeatureContext extends SilverStripeContext
 	 */
 	public function getFixtureFactory() {
 		if(!$this->fixtureFactory) {
-			$this->fixtureFactory = \Injector::inst()->get('FixtureFactory', 'FixtureContextFactory');
+			$this->fixtureFactory = \Injector::inst()->create('BehatFixtureFactory');
 		}
 		return $this->fixtureFactory;
 	}