migration to mysql

tests/mysql_smoke.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+require dirname(__DIR__) . '/vendor/autoload.php';
+require_once dirname(__DIR__) . '/lib/response.php';
+require_once dirname(__DIR__) . '/common.php';
+
+qdb_env_override('QDB_DRIVER', 'mysql');
+require_once dirname(__DIR__) . '/db_init.php';
+
+[$pdo] = qdb_open(true);
+
+foreach (['users', 'questionnaire', 'questionnaire_submission', 'system_setting'] as $table) {
+    if (!qdb_table_exists($pdo, $table)) {
+        throw new RuntimeException("MySQL smoke test: missing table {$table}");
+    }
+}
+
+if (qdb_schema_version($pdo) !== QDB_VERSION) {
+    throw new RuntimeException('MySQL smoke test: incorrect schema version');
+}
+
+// Schema application must be safe to retry after an interrupted or concurrent bootstrap.
+qdb_exec_schema_file($pdo, qdb_schema_file());
+
+$pdo->exec("DELETE FROM language WHERE languageCode = 'ci-smoke'");
+$upsert = $pdo->prepare(
+    'INSERT INTO language (languageCode, name, enabled) VALUES (:code, :name, 1) '
+    . qdb_upsert_update(['languageCode'], ['name' => 'excluded.name'])
+);
+$upsert->execute([':code' => 'ci-smoke', ':name' => 'First']);
+$upsert->execute([':code' => 'ci-smoke', ':name' => 'Updated']);
+$name = $pdo->query("SELECT name FROM language WHERE languageCode = 'ci-smoke'")->fetchColumn();
+if ($name !== 'Updated') {
+    throw new RuntimeException('MySQL smoke test: upsert failed');
+}
+$pdo->exec("DELETE FROM language WHERE languageCode = 'ci-smoke'");
+
+fwrite(STDOUT, "MySQL smoke test passed\n");