1 // Copyright 2020 The Android Open Source Project
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "host-common/HostmemIdMapping.h"
16
17 #include <gtest/gtest.h>
18
19 using android::emulation::HostmemIdMapping;
20
21 // Tests creation and destruction.
TEST(HostmemIdMapping,Basic)22 TEST(HostmemIdMapping, Basic) {
23 HostmemIdMapping m;
24 }
25
26 // Tests basic operations on an entry: add, remove, get entry info
TEST(HostmemIdMapping,BasicEntry)27 TEST(HostmemIdMapping, BasicEntry) {
28 HostmemIdMapping m;
29 auto id = m.add(0, 1);
30 EXPECT_EQ(HostmemIdMapping::kInvalidHostmemId, id);
31 id = m.add(1, 0);
32 EXPECT_EQ(HostmemIdMapping::kInvalidHostmemId, id);
33 id = m.add(1, 2);
34 EXPECT_NE(HostmemIdMapping::kInvalidHostmemId, id);
35
36 auto entry = m.get(id);
37 EXPECT_EQ(id, entry.id);
38 EXPECT_EQ(1, entry.hva);
39 EXPECT_EQ(2, entry.size);
40
41 m.remove(id);
42
43 entry = m.get(id);
44
45 EXPECT_EQ(HostmemIdMapping::kInvalidHostmemId, entry.id);
46 EXPECT_EQ(0, entry.hva);
47 EXPECT_EQ(0, entry.size);
48 }
49
50 // Tests the clear() method.
TEST(HostmemIdMapping,Clear)51 TEST(HostmemIdMapping, Clear) {
52 HostmemIdMapping m;
53 auto id1 = m.add(1, 2);
54 auto id2 = m.add(3, 4);
55
56 m.clear();
57
58 auto entry = m.get(id1);
59 EXPECT_EQ(HostmemIdMapping::kInvalidHostmemId, entry.id);
60 EXPECT_EQ(0, entry.hva);
61 EXPECT_EQ(0, entry.size);
62
63 entry = m.get(id2);
64 EXPECT_EQ(HostmemIdMapping::kInvalidHostmemId, entry.id);
65 EXPECT_EQ(0, entry.hva);
66 EXPECT_EQ(0, entry.size);
67 }
68
69