8165439: Convert Test_TempNewSymbol to GTest

Reviewed-by: dholmes, coleenp

hotspot/src/share/vm/classfile/symbolTable.cpp

@@ -710,53 +710,3 @@ int SymboltableDCmd::num_arguments() {
     return 0;
   }
 }
-
-#ifndef PRODUCT
-// Internal test of TempNewSymbol
-void Test_TempNewSymbol() {
-  // Assert messages assume these symbols are unique, and the refcounts start at
-  // one, but code does not rely on this.
-  Thread* THREAD = Thread::current();
-  Symbol* abc = SymbolTable::new_symbol("abc", CATCH);
-  int abccount = abc->refcount();
-  TempNewSymbol ss = abc;
-  assert(ss->refcount() == abccount, "only one abc");
-  assert(ss->refcount() == abc->refcount(), "should match TempNewSymbol");
-
-  Symbol* efg = SymbolTable::new_symbol("efg", CATCH);
-  Symbol* hij = SymbolTable::new_symbol("hij", CATCH);
-  int efgcount = efg->refcount();
-  int hijcount = hij->refcount();
-
-  TempNewSymbol s1 = efg;
-  TempNewSymbol s2 = hij;
-  assert(s1->refcount() == efgcount, "one efg");
-  assert(s2->refcount() == hijcount, "one hij");
-
-  // Assignment operator
-  s1 = s2;
-  assert(hij->refcount() == hijcount + 1, "should be two hij");
-  assert(efg->refcount() == efgcount - 1, "should be no efg");
-
-  s1 = ss;  // s1 is abc
-  assert(s1->refcount() == abccount + 1, "should be two abc (s1 and ss)");
-  assert(hij->refcount() == hijcount, "should only have one hij now (s2)");
-
-  s1 = s1; // self assignment
-  assert(s1->refcount() == abccount + 1, "should still be two abc (s1 and ss)");
-
-  TempNewSymbol s3;
-  Symbol* klm = SymbolTable::new_symbol("klm", CATCH);
-  int klmcount = klm->refcount();
-  s3 = klm;   // assignment
-  assert(s3->refcount() == klmcount, "only one klm now");
-
-  Symbol* xyz = SymbolTable::new_symbol("xyz", CATCH);
-  int xyzcount = xyz->refcount();
-  { // inner scope
-     TempNewSymbol s_inner = xyz;
-  }
-  assert(xyz->refcount() == (xyzcount - 1),
-         "Should have been decremented by dtor in inner scope");
-}
-#endif // PRODUCT

hotspot/src/share/vm/utilities/internalVMTests.cpp

@@ -82,7 +82,6 @@ void InternalVMTests::run() {
   run_unit_test(Test_invalid_log_file);
   run_unit_test(Test_multiline_logging);
   run_unit_test(DirectivesParser_test);
-  run_unit_test(Test_TempNewSymbol);
 #if INCLUDE_VM_STRUCTS
   run_unit_test(VMStructs_test);
 #endif

hotspot/test/native/classfile/test_symbolTable.cpp

@@ -0,0 +1,77 @@
+/*
+ * 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/interfaceSupport.hpp"
+#include "classfile/symbolTable.hpp"
+#include "unittest.hpp"
+
+TEST(SymbolTable, temp_new_symbol) {
+  // Assert messages assume these symbols are unique, and the refcounts start at
+  // one, but code does not rely on this.
+  JavaThread* THREAD = JavaThread::current();
+  // the thread should be in vm to use locks
+  ThreadInVMfromNative ThreadInVMfromNative(THREAD);
+
+  Symbol* abc = SymbolTable::new_symbol("abc", CATCH);
+  int abccount = abc->refcount();
+  TempNewSymbol ss = abc;
+  ASSERT_EQ(ss->refcount(), abccount) << "only one abc";
+  ASSERT_EQ(ss->refcount(), abc->refcount()) << "should match TempNewSymbol";
+
+  Symbol* efg = SymbolTable::new_symbol("efg", CATCH);
+  Symbol* hij = SymbolTable::new_symbol("hij", CATCH);
+  int efgcount = efg->refcount();
+  int hijcount = hij->refcount();
+
+  TempNewSymbol s1 = efg;
+  TempNewSymbol s2 = hij;
+  ASSERT_EQ(s1->refcount(), efgcount) << "one efg";
+  ASSERT_EQ(s2->refcount(), hijcount) << "one hij";
+
+  // Assignment operator
+  s1 = s2;
+  ASSERT_EQ(hij->refcount(), hijcount + 1) << "should be two hij";
+  ASSERT_EQ(efg->refcount(), efgcount - 1) << "should be no efg";
+
+  s1 = ss; // s1 is abc
+  ASSERT_EQ(s1->refcount(), abccount + 1) << "should be two abc (s1 and ss)";
+  ASSERT_EQ(hij->refcount(), hijcount) << "should only have one hij now (s2)";
+
+  s1 = s1; // self assignment
+  ASSERT_EQ(s1->refcount(), abccount + 1) << "should still be two abc (s1 and ss)";
+
+  TempNewSymbol s3;
+  Symbol* klm = SymbolTable::new_symbol("klm", CATCH);
+  int klmcount = klm->refcount();
+  s3 = klm; // assignment
+  ASSERT_EQ(s3->refcount(), klmcount) << "only one klm now";
+
+  Symbol* xyz = SymbolTable::new_symbol("xyz", CATCH);
+  int xyzcount = xyz->refcount();
+  { // inner scope
+    TempNewSymbol s_inner = xyz;
+  }
+  ASSERT_EQ(xyz->refcount(), xyzcount - 1)
+          << "Should have been decremented by dtor in inner scope";
+}