1 // SPDX-License-Identifier: Apache-2.0
2 // SPDX-FileCopyrightText: Copyright 2019 IBM Corporation
3
4 #include "extensions/openpower-pels/mru.hpp"
5
6 #include <gtest/gtest.h>
7
8 using namespace openpower::pels;
9 using namespace openpower::pels::src;
10
TEST(MRUTest,TestConstructor)11 TEST(MRUTest, TestConstructor)
12 {
13 std::vector<uint8_t> data{
14 'M', 'R', 0x28, 0x04, // ID, size, flags
15 0x00, 0x00, 0x00, 0x00, // Reserved
16 0x00, 0x00, 0x00, 'H', // priority for MRU ID 0
17 0x01, 0x01, 0x01, 0x01, // MRU ID 0
18 0x00, 0x00, 0x00, 'M', // priority for MRU ID 1
19 0x02, 0x02, 0x02, 0x02, // MRU ID 1
20 0x00, 0x00, 0x00, 'L', // priority for MRU ID 2
21 0x03, 0x03, 0x03, 0x03, // MRU ID 2
22 0x00, 0x00, 0x00, 'H', // priority for MRU ID 3
23 0x04, 0x04, 0x04, 0x04, // MRU ID 3
24 };
25
26 Stream stream{data};
27
28 MRU mru{stream};
29
30 EXPECT_EQ(mru.flattenedSize(), data.size());
31 EXPECT_EQ(mru.mrus().size(), 4);
32 EXPECT_EQ(mru.flags(), 4);
33
34 EXPECT_EQ(mru.mrus().at(0).priority, 'H');
35 EXPECT_EQ(mru.mrus().at(0).id, 0x01010101);
36 EXPECT_EQ(mru.mrus().at(1).priority, 'M');
37 EXPECT_EQ(mru.mrus().at(1).id, 0x02020202);
38 EXPECT_EQ(mru.mrus().at(2).priority, 'L');
39 EXPECT_EQ(mru.mrus().at(2).id, 0x03030303);
40 EXPECT_EQ(mru.mrus().at(3).priority, 'H');
41 EXPECT_EQ(mru.mrus().at(3).id, 0x04040404);
42
43 // Now flatten
44 std::vector<uint8_t> newData;
45 Stream newStream{newData};
46
47 mru.flatten(newStream);
48 EXPECT_EQ(data, newData);
49 }
50
TEST(MRUTest,TestBadData)51 TEST(MRUTest, TestBadData)
52 {
53 // 4 MRUs expected, but only 1
54 std::vector<uint8_t> data{
55 'M', 'R', 0x28, 0x04, // ID, size, flags
56 0x00, 0x00, 0x00, 0x00, // Reserved
57 0x00, 0x00, 0x00, 'H', // priority 0
58 0x01, 0x01, 0x01, 0x01, // MRU ID 0
59 };
60
61 Stream stream{data};
62 EXPECT_THROW(MRU mru{stream}, std::out_of_range);
63 }
64
TEST(MRUTest,TestVectorConstructor)65 TEST(MRUTest, TestVectorConstructor)
66 {
67 {
68 std::vector<MRU::MRUCallout> mrus{{'H', 1}, {'M', 2}, {'L', 3}};
69
70 MRU mru{mrus};
71
72 EXPECT_EQ(mru.mrus().size(), 3);
73 EXPECT_EQ(mru.flags(), 3);
74
75 EXPECT_EQ(mru.mrus().at(0).priority, 'H');
76 EXPECT_EQ(mru.mrus().at(0).id, 1);
77 EXPECT_EQ(mru.mrus().at(1).priority, 'M');
78 EXPECT_EQ(mru.mrus().at(1).id, 2);
79 EXPECT_EQ(mru.mrus().at(2).priority, 'L');
80 EXPECT_EQ(mru.mrus().at(2).id, 3);
81
82 // Flatten and unflatten
83 std::vector<uint8_t> data;
84 Stream stream{data};
85
86 mru.flatten(stream);
87 EXPECT_EQ(mru.size(), data.size());
88
89 stream.offset(0);
90 MRU newMRU{stream};
91
92 EXPECT_EQ(newMRU.flattenedSize(), data.size());
93 EXPECT_EQ(newMRU.size(), data.size());
94 EXPECT_EQ(newMRU.mrus().size(), 3);
95
96 EXPECT_EQ(newMRU.mrus().at(0).priority, 'H');
97 EXPECT_EQ(newMRU.mrus().at(0).id, 1);
98 EXPECT_EQ(newMRU.mrus().at(1).priority, 'M');
99 EXPECT_EQ(newMRU.mrus().at(1).id, 2);
100 EXPECT_EQ(newMRU.mrus().at(2).priority, 'L');
101 EXPECT_EQ(newMRU.mrus().at(2).id, 3);
102 }
103
104 {
105 // Too many MRUs
106 std::vector<MRU::MRUCallout> mrus;
107 for (uint32_t i = 0; i < 20; i++)
108 {
109 MRU::MRUCallout mru = {'H', i};
110 mrus.push_back(mru);
111 }
112
113 MRU mru{mrus};
114
115 EXPECT_EQ(mru.mrus().size(), 15);
116 EXPECT_EQ(mru.flags(), 15);
117 }
118
119 {
120 // Too few MRUs
121 std::vector<MRU::MRUCallout> mrus;
122 EXPECT_THROW(MRU mru{mrus}, std::runtime_error);
123 }
124 }
125