hotspot/test/native/runtime/test_globals.cpp

/*
 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

#include "precompiled.hpp"
#include "runtime/globals.hpp"
#include "unittest.hpp"

#define TEST_FLAG(f, type, value)                     \
  do {                                                \
    ASSERT_TRUE(Flag::find_flag(#f)->is_ ## type());  \
    type original_value = f;                          \
    {                                                 \
      FLAG_GUARD(f);                                  \
      f = value;                                      \
    }                                                 \
    ASSERT_EQ(original_value, f);                     \
  } while (0)

TEST_VM(FlagGuard, bool_flag) {
  TEST_FLAG(AlwaysActAsServerClassMachine, bool, true);
}

TEST_VM(FlagGuard, int_flag) {
  TEST_FLAG(ParGCArrayScanChunk, int, 1337);
}

TEST_VM(FlagGuard, intx_flag) {
  TEST_FLAG(RefDiscoveryPolicy, intx, 1337);
}

TEST_VM(FlagGuard, uint_flag) {
  TEST_FLAG(ConcGCThreads, uint, 1337);
}

TEST_VM(FlagGuard, uintx_flag) {
  TEST_FLAG(GCTaskTimeStampEntries, uintx, 1337);
}

TEST_VM(FlagGuard, size_t_flag) {
  TEST_FLAG(HeapSizePerGCThread, size_t, 1337);
}

TEST_VM(FlagGuard, uint64_t_flag) {
  TEST_FLAG(MaxRAM, uint64_t, 1337);
}

TEST_VM(FlagGuard, double_flag) {
  TEST_FLAG(CompileThresholdScaling, double, 3.141569);
}

TEST_VM(FlagGuard, ccstr_flag) {
  TEST_FLAG(PerfDataSaveFile, ccstr, "/a/random/path");
}