dibi: monostate implemented via __callStatic

tests/dibi/dibi.phpt

@@ -0,0 +1,18 @@
+<?php
+
+/**
+ * @dataProvider ../databases.ini
+ */
+
+declare(strict_types=1);
+
+use Tester\Assert;
+
+require __DIR__ . '/bootstrap.php';
+
+dibi::connect($config);
+dibi::loadFile(__DIR__ . "/data/$config[system].sql");
+dibi::query('INSERT INTO products', [
+	'title' => 'Test product',
+]);
+Assert::same(1, dibi::getAffectedRows());