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 "memory/resourceArea.hpp"
26#include "utilities/bitMap.inline.hpp"
27#include "unittest.hpp"
28
29class BitMapTest {
30
31  template <class ResizableBitMapClass>
32  static void fillBitMap(ResizableBitMapClass& map) {
33    map.set_bit(1);
34    map.set_bit(3);
35    map.set_bit(17);
36    map.set_bit(512);
37  }
38
39  template <class ResizableBitMapClass>
40  static void testResize(BitMap::idx_t start_size) {
41    ResourceMark rm;
42
43    ResizableBitMapClass map(start_size);
44    map.resize(BITMAP_SIZE);
45    fillBitMap(map);
46
47    ResizableBitMapClass map2(BITMAP_SIZE);
48    fillBitMap(map2);
49    EXPECT_TRUE(map.is_same(map2)) << "With start_size " << start_size;
50  }
51
52 public:
53  const static BitMap::idx_t BITMAP_SIZE = 1024;
54
55
56  template <class ResizableBitMapClass>
57  static void testResizeGrow() {
58    testResize<ResizableBitMapClass>(0);
59    testResize<ResizableBitMapClass>(BITMAP_SIZE >> 3);
60  }
61
62  template <class ResizableBitMapClass>
63  static void testResizeSame() {
64    testResize<ResizableBitMapClass>(BITMAP_SIZE);
65  }
66
67  template <class ResizableBitMapClass>
68  static void testResizeShrink() {
69    testResize<ResizableBitMapClass>(BITMAP_SIZE * 2);
70  }
71
72  template <class InitializableBitMapClass>
73  static void testInitialize() {
74    ResourceMark rm;
75
76    InitializableBitMapClass map;
77    map.initialize(BITMAP_SIZE);
78    fillBitMap(map);
79
80    InitializableBitMapClass map2(BITMAP_SIZE);
81    fillBitMap(map2);
82    EXPECT_TRUE(map.is_same(map2));
83  }
84
85
86  static void testReinitialize(BitMap::idx_t init_size) {
87    ResourceMark rm;
88
89    ResourceBitMap map(init_size);
90    map.reinitialize(BITMAP_SIZE);
91    fillBitMap(map);
92
93    ResourceBitMap map2(BITMAP_SIZE);
94    fillBitMap(map2);
95    EXPECT_TRUE(map.is_same(map2)) << "With init_size " << init_size;
96  }
97
98};
99
100TEST_VM(BitMap, resize_grow) {
101  BitMapTest::testResizeGrow<ResourceBitMap>();
102  EXPECT_FALSE(HasFailure()) << "Failed on type ResourceBitMap";
103  BitMapTest::testResizeGrow<CHeapBitMap>();
104  EXPECT_FALSE(HasFailure()) << "Failed on type CHeapBitMap";
105}
106
107TEST_VM(BitMap, resize_shrink) {
108  BitMapTest::testResizeShrink<ResourceBitMap>();
109  EXPECT_FALSE(HasFailure()) << "Failed on type ResourceBitMap";
110  BitMapTest::testResizeShrink<CHeapBitMap>();
111  EXPECT_FALSE(HasFailure()) << "Failed on type CHeapBitMap";
112}
113
114TEST_VM(BitMap, resize_same) {
115  BitMapTest::testResizeSame<ResourceBitMap>();
116  EXPECT_FALSE(HasFailure()) << "Failed on type ResourceBitMap";
117  BitMapTest::testResizeSame<CHeapBitMap>();
118  EXPECT_FALSE(HasFailure()) << "Failed on type CHeapBitMap";
119}
120
121TEST_VM(BitMap, initialize) {
122  BitMapTest::testInitialize<ResourceBitMap>();
123  EXPECT_FALSE(HasFailure()) << "Failed on type ResourceBitMap";
124  BitMapTest::testInitialize<CHeapBitMap>();
125  EXPECT_FALSE(HasFailure()) << "Failed on type CHeapBitMap";
126}
127
128TEST_VM(BitMap, reinitialize) {
129  BitMapTest::testReinitialize(0);
130  BitMapTest::testReinitialize(BitMapTest::BITMAP_SIZE >> 3);
131  BitMapTest::testReinitialize(BitMapTest::BITMAP_SIZE);
132}
133