1 /*
2 * Copyright (C) 2016 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 <deque>
18 #include <fcntl.h>
19 #include <random>
20 #include <string.h>
21 #include <stdio.h>
22 #include <sys/stat.h>
23 #include <unistd.h>
24
25 #include <gtest/gtest.h>
26
27 #include <storaged.h> // data structures
28 #include <storaged_utils.h> // functions to test
29
30 #define MMC_DISK_STATS_PATH "/sys/block/mmcblk0/stat"
31 #define SDA_DISK_STATS_PATH "/sys/block/sda/stat"
32
pause(uint32_t sec)33 static void pause(uint32_t sec) {
34 const char* path = "/cache/test";
35 int fd = open(path, O_WRONLY | O_CREAT, 0600);
36 ASSERT_LT(-1, fd);
37 char buffer[2048];
38 memset(buffer, 1, sizeof(buffer));
39 int loop_size = 100;
40 for (int i = 0; i < loop_size; ++i) {
41 ASSERT_EQ(2048, write(fd, buffer, sizeof(buffer)));
42 }
43 fsync(fd);
44 close(fd);
45
46 fd = open(path, O_RDONLY);
47 ASSERT_LT(-1, fd);
48 for (int i = 0; i < loop_size; ++i) {
49 ASSERT_EQ(2048, read(fd, buffer, sizeof(buffer)));
50 }
51 close(fd);
52
53 sleep(sec);
54 }
55
56 // the return values of the tested functions should be the expected ones
57 const char* DISK_STATS_PATH;
TEST(storaged_test,retvals)58 TEST(storaged_test, retvals) {
59 struct disk_stats stats;
60 memset(&stats, 0, sizeof(struct disk_stats));
61
62 if (access(MMC_DISK_STATS_PATH, R_OK) >= 0) {
63 DISK_STATS_PATH = MMC_DISK_STATS_PATH;
64 } else if (access(SDA_DISK_STATS_PATH, R_OK) >= 0) {
65 DISK_STATS_PATH = SDA_DISK_STATS_PATH;
66 } else {
67 return;
68 }
69
70 EXPECT_TRUE(parse_disk_stats(DISK_STATS_PATH, &stats));
71
72 struct disk_stats old_stats;
73 memset(&old_stats, 0, sizeof(struct disk_stats));
74 old_stats = stats