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/platform/memory_manager.h"
20 #include "chre/platform/memory.h"
21 #include "chre/platform/log.h"
22
23 using chre::MemoryManager;
24 using chre::Nanoapp;
25
26 namespace {
27 struct node {
28 node *next;
29 };
30 }
31
TEST(MemoryManager,DefaultTotalMemoryAllocatedIsZero)32 TEST(MemoryManager, DefaultTotalMemoryAllocatedIsZero) {
33 MemoryManager manager;
34 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0);
35 }
36
TEST(MemoryManager,BasicAllocationFree)37 TEST(MemoryManager, BasicAllocationFree) {
38 MemoryManager manager;
39 Nanoapp app;
40 void *ptr = manager.nanoappAlloc(&app, 1);
41 EXPECT_NE(ptr, nullptr);
42 EXPECT_EQ(manager.getTotalAllocatedBytes(), 1);
43 EXPECT_EQ(manager.getAllocationCount(), 1);
44 manager.nanoappFree(&app, ptr);
45 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0);
46 EXPECT_EQ(manager.getAllocationCount(), 0);
47 }
48
TEST(MemoryManager,NullPointerFree)49 TEST(MemoryManager, NullPointerFree) {
50 MemoryManager manager;
51 Nanoapp app;
52 manager.nanoappFree(&app, nullptr);
53 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0);
54 EXPECT_EQ(manager.getAllocationCount(), 0);
55 }
56
TEST(MemoryManager,ZeroAllocationFails)57 TEST(MemoryManager, ZeroAllocationFails) {
58 MemoryManager manager;
59 Nanoapp app;
60 void *ptr = manager.nanoappAlloc(&app, 0);
61 EXPECT_EQ(ptr, nullptr);
62 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0);
63 EXPECT_EQ(manager.getAllocationCount(), 0);
64 }
65
TEST(MemoryManager,HugeAllocationFails)66 TEST(MemoryManager, HugeAllocationFails) {
67 MemoryManager manager;
68 Nanoapp app;
69 void *ptr = manager.nanoappAlloc(&app, manager.getMaxAllocationBytes() + 1);
70 EXPECT_EQ(ptr, nullptr);
71 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0);
72 }
73
TEST(MemoryManager,ManyAllocationsTest)74 TEST(MemoryManager, ManyAllocationsTest) {
75 MemoryManager manager;
76 Nanoapp app;
77 size_t maxCount = manager.getMaxAllocationCount();
78 node *head = static_cast<node*>(manager.nanoappAlloc(&app, sizeof(node)));
79 node *curr = nullptr, *prev = head;
80 for (size_t i = 0; i < maxCount-1; i++) {
81 curr = static_cast<node*>(manager.nanoappAlloc(&app, sizeof(node)));
82 EXPECT_NE(curr, nullptr);
83 prev->next = curr;
84 prev = curr;
85 }
86 EXPECT_EQ(manager.getTotalAllocatedBytes(), maxCount * sizeof(node));
87 EXPECT_EQ(manager.getAllocationCount(), maxCount);
88 EXPECT_EQ(manager.nanoappAlloc(&app, 1), nullptr);
89
90 curr = head;
91 for (size_t i = 0; i < maxCount; i++) {
92 node *temp = curr->next;
93 manager.nanoappFree(&app, curr);
94 curr = temp;
95 }
96 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0);
97 EXPECT_EQ(manager.getAllocationCount(), 0);
98 }
99
TEST(MemoryManager,NegativeAllocationFails)100 TEST(MemoryManager, NegativeAllocationFails) {
101 MemoryManager manager;
102 Nanoapp app;
103 void *ptr = manager.nanoappAlloc(&app, -1);
104 EXPECT_EQ(ptr, nullptr);
105 EXPECT_EQ(manager.getTotalAllocatedBytes(), 0);
106 EXPECT_EQ(manager.getAllocationCount(), 0);
107 }
108
109