test: get necessary contexts properly

tests/acceptance/TestHelpers/BehatHelper.php

@@ -0,0 +1,54 @@
+<?php declare(strict_types=1);
+/**
+ * ownCloud
+ *
+ * @author Sajan Gurung <sajan@jankaritech.com>
+ * @copyright Copyright (c) 2017 Artur Neumann artur@jankaritech.com
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License,
+ * as published by the Free Software Foundation;
+ * either version 3 of the License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace TestHelpers;
+
+use Behat\Behat\Context\Context;
+use Behat\Behat\Context\Environment\InitializedContextEnvironment;
+use Behat\Behat\Context\Exception\ContextNotFoundException;
+use Behat\Behat\Hook\Scope\ScenarioScope;
+
+/**
+ * Helper for Behat environment configuration
+ *
+ */
+class BehatHelper {
+	/**
+	 * @param ScenarioScope $scope
+	 * @param InitializedContextEnvironment $environment
+	 * @param string $class
+	 *
+	 * @return Context
+	 */
+	public static function getContext(ScenarioScope $scope, InitializedContextEnvironment $environment, string $class): Context {
+		try {
+			return $environment->getContext($class);
+		} catch (ContextNotFoundException $e) {
+			print_r("[INFO] '$class' context not found. Registering...\n");
+			$context = new $class();
+			$environment->registerContext($context);
+			if (\method_exists($context, 'before')) {
+				$context->before($scope);
+			}
+			return $environment->getContext($class);
+		}
+	}
+}