Simplified and united configs for tests

module/Common/test-db/TestHelper.php

@@ -0,0 +1,25 @@
+<?php
+declare(strict_types=1);
+
+namespace ShlinkioTest\Shlink\Common;
+
+use Symfony\Component\Process\Process;
+use function file_exists;
+use function realpath;
+use function sys_get_temp_dir;
+use function unlink;
+
+class TestHelper
+{
+    public function createTestDb(): void
+    {
+        $shlinkDbPath = realpath(sys_get_temp_dir()) . '/shlink-tests.db';
+        if (file_exists($shlinkDbPath)) {
+            unlink($shlinkDbPath);
+        }
+
+        $process = new Process(['vendor/bin/doctrine', 'orm:schema-tool:create', '--no-interaction', '-q']);
+        $process->inheritEnvironmentVariables()
+                ->mustRun();
+    }
+}