1 files changed, 107 insertions, 0 deletions
diff --git a/unittest/test_storage_local_StatsFile.cpp b/unittest/test_storage_local_StatsFile.cpp
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+++ b/unittest/test_storage_local_StatsFile.cpp
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+// Copyright (C) 2011-2022 Joel Rosdahl and other contributors
+//
+// See doc/AUTHORS.adoc for a complete list of contributors.
+//
+// This program 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.
+//
+// This program 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
+// this program; if not, write to the Free Software Foundation, Inc., 51
+// Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+#include "TestUtil.hpp"
+
+#include <Util.hpp>
+#include <core/Statistic.hpp>
+#include <fmtmacros.hpp>
+#include <storage/local/StatsFile.hpp>
+#include <util/file.hpp>
+
+#include <third_party/doctest.h>
+
+using core::Statistic;
+using storage::local::StatsFile;
+using TestUtil::TestContext;
+
+TEST_SUITE_BEGIN("storage::local::StatsFile");
+
+TEST_CASE("Read nonexistent")
+{
+  TestContext test_context;
+
+  const auto counters = StatsFile("test").read();
+
+  REQUIRE(counters.size() == static_cast<size_t>(Statistic::END));
+  CHECK(counters.get(Statistic::cache_miss) == 0);
+}
+
+TEST_CASE("Read bad")
+{
+  TestContext test_context;
+
+  util::write_file("test", "bad 1 2 3 4 5\n");
+  const auto counters = StatsFile("test").read();
+
+  REQUIRE(counters.size() == static_cast<size_t>(Statistic::END));
+  CHECK(counters.get(Statistic::cache_miss) == 0);
+}
+
+TEST_CASE("Read existing")
+{
+  TestContext test_context;
+
+  util::write_file("test", "0 1 2 3 27 5\n");
+  const auto counters = StatsFile("test").read();
+
+  REQUIRE(counters.size() == static_cast<size_t>(Statistic::END));
+  CHECK(counters.get(Statistic::cache_miss) == 27);
+  CHECK(counters.get(Statistic::could_not_use_modules) == 0);
+}
+
+TEST_CASE("Read future counters")
+{
+  TestContext test_context;
+
+  std::string content;
+  size_t count = static_cast<size_t>(Statistic::END) + 1;
+  for (size_t i = 0; i < count; ++i) {
+    content += FMT("{}\n", i);
+  }
+
+  util::write_file("test", content);
+  const auto counters = StatsFile("test").read();
+
+  REQUIRE(counters.size() == count);
+  for (size_t i = 0; i < count; ++i) {
+    CHECK(counters.get_raw(i) == i);
+  }
+}
+
+TEST_CASE("Update")
+{
+  TestContext test_context;
+
+  util::write_file("test", "0 1 2 3 27 5\n");
+
+  auto counters = StatsFile("test").update([](auto& cs) {
+    cs.increment(Statistic::internal_error, 1);
+    cs.increment(Statistic::cache_miss, 6);
+  });
+  REQUIRE(counters);
+
+  CHECK(counters->get(Statistic::internal_error) == 4);
+  CHECK(counters->get(Statistic::cache_miss) == 33);
+
+  counters = StatsFile("test").read();
+  CHECK(counters->get(Statistic::internal_error) == 4);
+  CHECK(counters->get(Statistic::cache_miss) == 33);
+}
+
+TEST_SUITE_END();