1 /*
2 * Copyright (c) 2017, 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/zBitField.hpp"
26 #include "unittest.hpp"
27
TEST(ZBitFieldTest,test)28 TEST(ZBitFieldTest, test) {
29 typedef ZBitField<uint64_t, bool, 0, 1> field_bool;
30 typedef ZBitField<uint64_t, uint8_t, 1, 8> field_uint8;
31 typedef ZBitField<uint64_t, uint16_t, 2, 16> field_uint16;
32 typedef ZBitField<uint64_t, uint32_t, 32, 32> field_uint32;
33 typedef ZBitField<uint64_t, uint64_t, 0, 63> field_uint64;
34 typedef ZBitField<uint64_t, void*, 1, 61, 3> field_pointer;
35
36 uint64_t entry;
37
38 {
39 const bool value = false;
40 entry = field_bool::encode(value);
41 EXPECT_EQ(field_bool::decode(entry), value) << "Should be equal";
42 }
43
44 {
45 const bool value = true;
46 entry = field_bool::encode(value);
47 EXPECT_EQ(field_bool::decode(entry), value) << "Should be equal";
48 }
49
50 {
51 const uint8_t value = ~(uint8_t)0;
52 entry = field_uint8::encode(value);
53 EXPECT_EQ(field_uint8::decode(entry), value) << "Should be equal";
54 }
55
56 {
57 const uint16_t value = ~(uint16_t)0;
58 entry = field_uint16::encode(value);
59 EXPECT_EQ(field_uint16::decode(entry), value) << "Should be equal";
60 }
61
62 {
63 const uint32_t value = ~(uint32_t)0;
64 entry = field_uint32::encode(value);
65 EXPECT_EQ(field_uint32::decode(entry), value) << "Should be equal";
66 }
67
68 {
69 const uint64_t value = ~(uint64_t)0 >> 1;
70 entry = field_uint64::encode(value);
71 EXPECT_EQ(field_uint64::decode(entry), value) << "Should be equal";
72 }
73
74 {
75 void* const value = (void*)(~(uintptr_t)0 << 3);
76 entry = field_pointer::encode(value);
77 EXPECT_EQ(field_pointer::decode(entry), value) << "Should be equal";
78 }
79 }
80