✅ Unit Test for dba_pdo driver class.

tests/unit/DatabaseTestCase.php

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+<?php
+/* Copyright (c) 2017 Hubzilla
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+namespace Zotlabs\Tests\Unit;
+
+use PHPUnit\DbUnit\TestCaseTrait;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @brief Base class for our Database Unit Tests.
+ *
+ * @warning Never run these tests against a production database, because all
+ * tables will get truncated and there is no way to recover without a backup.
+ *
+ * @author Klaus Weidenbach
+ */
+abstract class DatabaseTestCase extends TestCase {
+
+	use TestCaseTrait;
+
+	/**
+	 * Only instantiate PDO once for test clean-up/fixture load.
+	 *
+	 * @var \PDO
+	 */
+	static private $pdo = null;
+
+	/**
+	 * Only instantiate \PHPUnit\DbUnit\Database\Connection once per test.
+	 *
+	 * @var \PHPUnit\DbUnit\Database\Connection
+	 */
+	private $conn = null;
+
+
+	final public function getConnection() {
+		if ($this->conn === null) {
+			if (self::$pdo === null) {
+				$dsn = \getenv('hz_db_scheme') . ':host=' . \getenv('hz_db_server')
+					. ';port=' . \getenv('hz_db_port') . ';dbname=' . \getenv('hz_db_database');
+
+				self::$pdo = new \PDO($dsn, \getenv('hz_db_user'), \getenv('hz_db_pass'));
+			}
+			$this->conn = $this->createDefaultDBConnection(self::$pdo, \getenv('hz_db_database'));
+		}
+
+		return $this->conn;
+	}
+}