1 /*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "gtest/gtest.h"
18
19 #include "chre/core/event.h"
20 #include "chre/platform/log.h"
21 #include "chre/platform/memory.h"
22 #include "chre/platform/memory_manager.h"
23
24 using chre::kInvalidInstanceId;
25 using chre::MemoryManager;
26 using chre::Nanoapp;
27
28 namespace {
29 struct node {
30 node *next;
31 };
32 } // namespace
33
TEST(MemoryManager,DefaultTotalMemoryAllocatedIsZero)34 TEST(MemoryManager, DefaultTotalMemoryAllocatedIsZero) {
35 MemoryManager manager;
36 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0u);
37 }
38
TEST(MemoryManager,BasicAllocationFree)39 TEST(MemoryManager, BasicAllocationFree) {
40 MemoryManager manager;
41 Nanoapp app(kInvalidInstanceId);
42 void *ptr = manager.nanoappAlloc(&app, 1u);
43 EXPECT_NE(ptr, nullptr);
44 EXPECT_EQ(manager.getTotalAllocatedBytes(), 1u);
45 EXPECT_EQ(manager.getAllocationCount(), 1u);
46 manager.nanoappFree(&app, ptr);
47 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0u);
48 EXPECT_EQ(manager.getAllocationCount(), 0u);
49 }
50
TEST(MemoryManager,NullPointerFree)51 TEST(MemoryManager, NullPointerFree) {
52 MemoryManager manager;
53 Nanoapp app(kInvalidInstanceId);
54 manager.nanoappFree(&app, nullptr);
55 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0u);
56 EXPECT_EQ(manager.getAllocationCount(), 0u);
57 }
58
TEST(MemoryManager,ZeroAllocationFails)59 TEST(MemoryManager, ZeroAllocationFails) {
60 MemoryManager manager;
61 Nanoapp app(kInvalidInstanceId);
62 void *ptr = manager.nanoappAlloc(&app, 0u);
63 EXPECT_EQ(ptr, nullptr);
64 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0u);
65 EXPECT_EQ(manager.getAllocationCount(), 0u);
66 }
67
TEST(MemoryManager,HugeAllocationFails)68 TEST(MemoryManager, HugeAllocationFails) {
69 MemoryManager manager;
70 Nanoapp app(kInvalidInstanceId);
71 void *ptr = manager.nanoappAlloc(&app, manager.getMaxAllocationBytes() + 1);
72 EXPECT_EQ(ptr, nullptr);
73 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0u);
74 }
75
TEST(MemoryManager,ManyAllocationsTest)76 TEST(MemoryManager, ManyAllocationsTest) {
77 MemoryManager manager;
78 Nanoapp app(kInvalidInstanceId);
79 size_t maxCount = manager.getMaxAllocationCount();
80 node *head = static_cast<node *>(manager.nanoappAlloc(&app, sizeof(node)));
81 node *curr = nullptr, *prev = head;
82 for (size_t i = 0; i < maxCount - 1; i++) {
83 curr = static_cast<node *>(manager.nanoappAlloc(&app, sizeof(node)));
84 EXPECT_NE(curr, nullptr);
85 prev->next = curr;
86 prev = curr;
87 }
88 EXPECT_EQ(manager.getTotalAllocatedBytes(), maxCount * sizeof(node));
89 EXPECT_EQ(manager.getAllocationCount(), maxCount);
90 EXPECT_EQ(manager.nanoappAlloc(&app, 1u), nullptr);
91
92 curr = head;
93 for (size_t i = 0; i < maxCount; i++) {
94 node *temp = curr->next;
95 manager.nanoappFree(&app, curr);
96 curr = temp;
97 }
98 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0u);
99 EXPECT_EQ(manager.getAllocationCount(), 0u);
100 }
101
TEST(MemoryManager,NegativeAllocationFails)102 TEST(MemoryManager, NegativeAllocationFails) {
103 MemoryManager manager;
104 Nanoapp app(kInvalidInstanceId);
105 void *ptr = manager.nanoappAlloc(&app, -1u);
106 EXPECT_EQ(ptr, nullptr);
107 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0u);
108 EXPECT_EQ(manager.getAllocationCount(), 0u);
109 }
110