mdbx-testing: добавление теста пересоздания таблицы с другими флагами/опциями (backport).

test/extra/dbi.c++

@@ -0,0 +1,38 @@
+#include "mdbx.h++"
+
+#include <iostream>
+
+static void logger(MDBX_log_level_t loglevel, const char *function, int line,
+                   const char *fmt, va_list args) noexcept {
+  (void)loglevel;
+  fprintf(stdout, "%s:%u ", function, line);
+  vfprintf(stdout, fmt, args);
+}
+
+int main(int argc, const char *argv[]) {
+  (void)argc;
+  (void)argv;
+
+  mdbx_setup_debug(MDBX_LOG_NOTICE, MDBX_DBG_ASSERT, logger);
+
+  mdbx::path path = "test-dbi";
+  mdbx::env::remove(path);
+
+  mdbx::env::operate_parameters operateParameters(100, 10);
+  mdbx::env_managed::create_parameters createParameters;
+  {
+    mdbx::env_managed env2(path, createParameters, operateParameters);
+    mdbx::txn_managed txn2 = env2.start_write(false);
+    /* mdbx::map_handle testHandle2 = */ txn2.create_map(
+        "fap1", mdbx::key_mode::reverse, mdbx::value_mode::single);
+    txn2.commit();
+  }
+  mdbx::env_managed env(path, createParameters, operateParameters);
+  mdbx::txn_managed txn = env.start_write(false);
+  /* mdbx::map_handle testHandle = */ txn.create_map(
+      "fap1", mdbx::key_mode::usual, mdbx::value_mode::single);
+  txn.commit();
+
+  std::cout << "OK\n";
+  return EXIT_SUCCESS;
+}