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 "gc/z/zVirtualMemory.inline.hpp" 26 #include "utilities/debug.hpp" 27 #include "unittest.hpp" 28 29 TEST(ZVirtualMemory, split) { 30 const size_t PageSize = 2 * M; 31 32 ZVirtualMemory mem(0, 10 * PageSize); 33 34 ZVirtualMemory mem_split0 = mem.split(0 * PageSize); 35 EXPECT_EQ(mem_split0.size(), 0 * PageSize); 36 EXPECT_EQ( mem.size(), 10 * PageSize); 37 38 ZVirtualMemory mem_split1 = mem.split(5u * PageSize); 39 EXPECT_EQ(mem_split1.size(), 5 * PageSize); 40 EXPECT_EQ( mem.size(), 5 * PageSize); 41 42 ZVirtualMemory mem_split2 = mem.split(5u * PageSize); 43 EXPECT_EQ(mem_split2.size(), 5 * PageSize); 44 EXPECT_EQ( mem.size(), 0 * PageSize); 45 46 ZVirtualMemory mem_split3 = mem.split(0 * PageSize); 47 EXPECT_EQ(mem_split3.size(), 0 * PageSize); 48 }