PHPunit tests adds and updates

4dev/tests/CoreLibsDBIOTest.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace tests;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Test class for DB\IO + DB\SQL\PgSQL
+ * This will only test the PgSQL parts
+ * @coversDefaultClass \CoreLibs\DB\IO
+ * @coversDefaultClass \CoreLibs\DB\SQL\PgSQL
+ * @testdox \CoreLibs\DB\IO method tests for SQL\PgSQL
+ */
+final class CoreLibsDBIOTest extends TestCase
+{
+	/**
+	 * Undocumented function
+	 *
+	 * @return void
+	 */
+	protected function setUp(): void
+	{
+		if (!extension_loaded('pgsql')) {
+			$this->markTestSkipped(
+				'The PgSQL extension is not available.'
+			);
+		}
+	}
+
+	/**
+	 * Undocumented function
+	 *
+	 * @testdox DB\IO Class tests
+	 *
+	 * @return void
+	 */
+	public function testDBIO()
+	{
+		$this->assertTrue(true, 'DB IO Tests not implemented');
+		$this->markTestIncomplete(
+			'DB\IO Tests have not yet been implemented'
+		);
+	}
+}
+
+// __END__