diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0f4cf14c..a47b656d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -594,6 +594,7 @@ if(WITH_TESTS)
   list(APPEND DWARFS_TESTS
     badfs_test
     block_merger_test
+    categorizer_test
     chmod_transformer_test
     compat_test
     dwarfs_test
diff --git a/test/categorizer_test.cpp b/test/categorizer_test.cpp
new file mode 100644
index 00000000..03b384b9
--- /dev/null
+++ b/test/categorizer_test.cpp
@@ -0,0 +1,81 @@
+/* vim:set ts=2 sw=2 sts=2 et: */
+/**
+ * \author     Marcus Holland-Moritz (github@mhxnet.de)
+ * \copyright  Copyright (c) Marcus Holland-Moritz
+ *
+ * This file is part of dwarfs.
+ *
+ * dwarfs is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * dwarfs is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with dwarfs.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <filesystem>
+
+#include <gtest/gtest.h>
+
+#include <fmt/format.h>
+
+#include "dwarfs/filesystem_v2.h"
+#include "dwarfs_tool_main.h"
+
+#include "mmap_mock.h"
+#include "test_helpers.h"
+#include "test_logger.h"
+
+using namespace dwarfs;
+
+namespace fs = std::filesystem;
+// namespace po = boost::program_options;
+
+namespace {
+
+auto test_dir = fs::path(TEST_DATA_DIR).make_preferred();
+auto audio_data_dir = test_dir / "pcmaudio";
+
+} // namespace
+
+class categorizer_test : public testing::TestWithParam<std::string> {};
+
+TEST_P(categorizer_test, end_to_end) {
+  auto level = GetParam();
+
+  auto input = std::make_shared<test::os_access_mock>();
+
+  input->add("", {1, 040755, 1, 0, 0, 10, 42, 0, 0, 0});
+  input->add_local_files(audio_data_dir);
+  input->add_file("random", 4096, true);
+
+  test::test_iolayer iolayer(input);
+
+  std::vector<char const*> args{"mkdwarfs", "-i", "/",
+                                "-o",       "-",  "--categorize"};
+
+  auto exit_code = mkdwarfs_main(args, iolayer.get());
+
+  EXPECT_EQ(exit_code, 0);
+
+  auto fsimage = iolayer.out();
+
+  auto mm = std::make_shared<test::mmap_mock>(std::move(fsimage));
+
+  test::test_logger lgr;
+  filesystem_v2 fs(lgr, mm);
+
+  auto iv16 = fs.find("/test8.aiff");
+  auto iv32 = fs.find("/test8.caf");
+
+  EXPECT_TRUE(iv16);
+  EXPECT_TRUE(iv32);
+}
+
+INSTANTIATE_TEST_SUITE_P(dwarfs, categorizer_test, ::testing::Values("debug"));