1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 #include "precompiled.hpp"
  25 #include "runtime/globals.hpp"
  26 #include "unittest.hpp"
  27 
  28 #define TEST_FLAG(f, type, value)                     \
  29   do {                                                \
  30     ASSERT_TRUE(Flag::find_flag(#f)->is_ ## type());  \
  31     type original_value = f;                          \
  32     {                                                 \
  33       FLAG_GUARD(f);                                  \
  34       f = value;                                      \
  35     }                                                 \
  36     ASSERT_EQ(original_value, f);                     \
  37   } while (0)
  38 
  39 TEST_VM(FlagGuard, bool_flag) {
  40   TEST_FLAG(AlwaysActAsServerClassMachine, bool, true);
  41 }
  42 
  43 TEST_VM(FlagGuard, int_flag) {
  44   TEST_FLAG(ParGCArrayScanChunk, int, 1337);
  45 }
  46 
  47 TEST_VM(FlagGuard, intx_flag) {
  48   TEST_FLAG(RefDiscoveryPolicy, intx, 1337);
  49 }
  50 
  51 TEST_VM(FlagGuard, uint_flag) {
  52   TEST_FLAG(ConcGCThreads, uint, 1337);
  53 }
  54 
  55 TEST_VM(FlagGuard, uintx_flag) {
  56   TEST_FLAG(GCTaskTimeStampEntries, uintx, 1337);
  57 }
  58 
  59 TEST_VM(FlagGuard, size_t_flag) {
  60   TEST_FLAG(HeapSizePerGCThread, size_t, 1337);
  61 }
  62 
  63 TEST_VM(FlagGuard, uint64_t_flag) {
  64   TEST_FLAG(MaxRAM, uint64_t, 1337);
  65 }
  66 
  67 TEST_VM(FlagGuard, double_flag) {
  68   TEST_FLAG(CompileThresholdScaling, double, 3.141569);
  69 }
  70 
  71 TEST_VM(FlagGuard, ccstr_flag) {
  72   TEST_FLAG(PerfDataSaveFile, ccstr, "/a/random/path");
  73 }