NEW: Refactor test bootstrap to be more modular.

The test bootstrap is broken into units that can be combined for
different test situations:

 - phpunit
 - behat
 - serve

tests/behat/serve-bootstrap.php

@@ -0,0 +1,7 @@
+<?php
+
+require __DIR__ . '/../bootstrap/init.php';
+require FRAMEWORK_PATH . '/tests/bootstrap/init.php';
+require FRAMEWORK_PATH . '/tests/bootstrap/environment.php';
+require __DIR__ . '/../bootstrap/mysite.php';
+require FRAMEWORK_PATH . '/tests/bootstrap/mysite.php';

tests/bootstrap.php

@@ -0,0 +1,10 @@
+<?php
+
+require __DIR__ . '/bootstrap/init.php';
+require FRAMEWORK_PATH . '/tests/bootstrap/init.php';
+require FRAMEWORK_PATH . '/tests/bootstrap/cli.php';
+require FRAMEWORK_PATH . '/tests/bootstrap/environment.php';
+require __DIR__ . '/bootstrap/mysite.php';
+require FRAMEWORK_PATH . '/tests/bootstrap/mysite.php';
+require FRAMEWORK_PATH . '/tests/bootstrap/phpunit.php';
+

tests/bootstrap/fixtures/Page.php.fixture

@@ -0,0 +1,12 @@
+<?php
+
+use SilverStripe\CMS\Model\SiteTree;
+use SilverStripe\CMS\Controllers\ContentController;
+
+class Page extends SiteTree
+{
+}
+
+class Page_Controller extends ContentController
+{
+}

tests/bootstrap/init.php

@@ -0,0 +1,12 @@
+<?php
+
+if(!defined('FRAMEWORK_PATH')) {
+	echo "FRAMEWORK_PATH hasn't been defined. This probably means that framework/Core/Constants.php hasn't been " .
+		"included by Composer's autoloader.\n" .
+		"Make sure the you are running your tests via vendor/bin/phpunit and your autoloader is up to date.\n";
+	exit(1);
+}
+
+if (empty($_SERVER['HTTP_HOST'])) {
+	$_SERVER['HTTP_HOST'] = 'localhost';
+}

tests/bootstrap/mysite.php

@@ -0,0 +1,14 @@
+<?php
+
+// Mock mysite if not installed with silverstripe/installer
+if (defined('BASE_PATH')) {
+	$projectPath = BASE_PATH . '/mysite';
+} else {
+	$projectPath = getcwd() . '/mysite';
+}
+if (!is_dir($projectPath)) {
+	mkdir($projectPath, 02775);
+	mkdir($projectPath.'/code', 02775);
+	mkdir($projectPath.'/_config', 02775);
+	copy(__DIR__.'/fixtures/Page.php.fixture', $projectPath . '/code/Page.php');
+}