1 /*
2 * Copyright (C) 2024 HiHope Open Source Organization.
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
16 #include <cerrno>
17 #include <cstdio>
18 #include <cstdlib>
19 #include <string>
20 #include <vector>
21 #include <fcntl.h>
22 #include <unistd.h>
23 #include <gtest/gtest.h>
24 #include <sys/stat.h>
25 #include <sys/types.h>
26 #include "securec.h"
27
28 using namespace testing::ext;
29 using namespace std;
30
31 static const char *TEST_FILE = "/data/local/tmp/read_test.txt";
32 static const char *TEST_DATA = "Hello World!";
33 static const int TEST_LEN = strlen(TEST_DATA);
34 static const int MAX_LEN = 128;
35
36 class ReadApiTest : public testing::Test {
37 public:
38 static void SetUpTestCase();
39 static void TearDownTestCase();
40 void SetUp();
41 void TearDown();
42 private:
43 };
SetUp()44 void ReadApiTest::SetUp()
45 {
46 int fd = open(TEST_FILE, O_WRONLY | O_CREAT, 0644);
47 write(fd, TEST_DATA, strlen(TEST_DATA));
48 close(fd);
49 }
TearDown()50 void ReadApiTest::TearDown()
51 {
52 (void)remove(TEST_FILE);
53 }
SetUpTestCase()54 void ReadApiTest::SetUpTestCase()
55 {
56 }
TearDownTestCase()57 void ReadApiTest::TearDownTestCase()
58 {
59 }
60
61 /*
62 * @tc.number : SUB_KERNEL_SYSCALL_READ_0100
63 * @tc.name : ReadFileSuccess_0001
64 * @tc.desc : read file success.
65 * @tc.size : MediumTest
66 * @tc.type : Function
67 * @tc.level : Level 1
68 */
HWTEST_F(ReadApiTest, ReadFileSuccess_0001, Function | MediumTest | Level1)69 HWTEST_F(ReadApiTest, ReadFileSuccess_0001, Function | MediumTest | Level1)
70 {
71 char buffer[MAX_LEN] = { 0 };
72 int fd = open(TEST_FILE, O_RDONLY);
73
74 ssize_t size = read(fd, nullptr, 0);
75 EXPECT_EQ(size, 0);
76 size = read(fd, buffer, MAX_LEN);
77 EXPECT_EQ(size, TEST_LEN);
78
79 close(fd);
80 }
81
82 /*
83 * @tc.number : SUB_KERNEL_SYSCALL_READ_0200
84 * @tc.name : ReadUseInvalidParamFailed_0002
85 * @tc.desc : read use invalid param failed.
86 * @tc.size : MediumTest
87 * @tc.type : Function
88 * @tc.level : Level 2
89 */
HWTEST_F(ReadApiTest, ReadUseInvalidParamFailed_0002, Function | MediumTest | Level2)90 HWTEST_F(ReadApiTest, ReadUseInvalidParamFailed_0002, Function | MediumTest | Level2)
91 {
92 char buffer[MAX_LEN] = { 0 };
93 errno = 0;
94 ssize_t size = read(-1, buffer, MAX_LEN);
95 EXPECT_EQ(size, -1);
96 EXPECT_EQ(errno, EBADF);
97 }
98
99 /*
100 * @tc.number : SUB_KERNEL_SYSCALL_READ_0300
101 * @tc.name : ReadUseErrorPermissionFdFailed_0003
102 * @tc.desc : read use write only fd failed, errno .
103 * @tc.size : MediumTest
104 * @tc.type : Function
105 * @tc.level : Level 2
106 */
HWTEST_F(ReadApiTest, ReadUseErrorPermissionFdFailed_0003, Function | MediumTest | Level2)107 HWTEST_F(ReadApiTest, ReadUseErrorPermissionFdFailed_0003, Function | MediumTest | Level2)
108 {
109 char buffer[MAX_LEN] = { 0 };
110 int fd = open(TEST_FILE, O_WRONLY);
111
112 ssize_t size = read(fd, buffer, MAX_LEN);
113 EXPECT_EQ(size, -1);
114 EXPECT_EQ(errno, EBADF);
115
116 close(fd);
117 }
118