Add API tests

tests/DatabaseTest.php

@@ -0,0 +1,60 @@
+<?php
+/**
+ * DatabaseTest class.
+ */
+
+namespace Friendica\Test;
+
+use dba;
+use Friendica\Database\DBStructure;
+use PHPUnit_Extensions_Database_DB_IDatabaseConnection;
+use PHPUnit\DbUnit\DataSet\YamlDataSet;
+use PHPUnit\DbUnit\TestCaseTrait;
+use PHPUnit\Framework\TestCase;
+use PDO;
+
+/**
+ * Abstract class used by tests that need a database.
+ */
+abstract class DatabaseTest extends TestCase
+{
+
+	use TestCaseTrait;
+
+	/**
+	 * Get database connection.
+	 * @return PHPUnit_Extensions_Database_DB_IDatabaseConnection
+	 * @see https://phpunit.de/manual/5.7/en/database.html
+	 */
+	protected function getConnection()
+	{
+		if (!dba::$connected) {
+			dba::connect('localhost', getenv('USER'), getenv('PASS'), getenv('DB'));
+
+			if (dba::$connected) {
+				$app = get_app();
+				// We need to do this in order to disable logging
+				$app->module = 'install';
+
+				// Create database structure
+				DBStructure::update(false, true, true);
+			} else {
+				$this->markTestSkipped('Could not connect to the database.');
+			}
+		}
+
+		return $this->createDefaultDBConnection(dba::get_db(), 'friendica_test:');
+	}
+
+	/**
+	 * Get dataset to populate the database with.
+	 * @return YamlDataSet
+	 * @see https://phpunit.de/manual/5.7/en/database.html
+	 */
+	protected function getDataSet()
+	{
+		return new YamlDataSet(
+			__DIR__.'/datasets/api.yml'
+		);
+	}
+}