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 <gtest/gtest.h>
17 #include <sys/random.h>
18
19 using namespace testing::ext;
20
21 class HatsGetrandomTest : public testing::Test {
22 public:
23 static void SetUpTestCase();
24 static void TearDownTestCase();
25 void SetUp();
26 void TearDown();
27 private:
28 };
SetUp()29 void HatsGetrandomTest::SetUp()
30 {
31 }
TearDown()32 void HatsGetrandomTest::TearDown()
33 {
34 }
SetUpTestCase()35 void HatsGetrandomTest::SetUpTestCase()
36 {
37 }
TearDownTestCase()38 void HatsGetrandomTest::TearDownTestCase()
39 {
40 }
41
42 /*
43 * @tc.number : SUB_KERNEL_SYSCALL_GETRANDOM_0100
44 * @tc.name : GetrandomFunctionalityTestSuccess_0001
45 * @tc.desc : getrandom functionality test success.
46 * @tc.size : MediumTest
47 * @tc.type : Function
48 * @tc.level : Level 1
49 */
HWTEST_F(HatsGetrandomTest, GetrandomFunctionalityTestSuccess_0001, Function | MediumTest | Level1)50 HWTEST_F(HatsGetrandomTest, GetrandomFunctionalityTestSuccess_0001, Function | MediumTest | Level1)
51 {
52 size_t len = 256;
53 char buffer[len];
54 ssize_t ret = getrandom(buffer, len, 0);
55 EXPECT_EQ(ret, static_cast<ssize_t>(len));
56 }
57
58 /*
59 * @tc.number : SUB_KERNEL_SYSCALL_GETRANDOM_0200
60 * @tc.name : GetrandomMultipleCallsConsistencySuccess_0002
61 * @tc.desc : getrandom multiple calls consistency success.
62 * @tc.size : MediumTest
63 * @tc.type : Function
64 * @tc.level : Level 1
65 */
HWTEST_F(HatsGetrandomTest, GetrandomMultipleCallsConsistencySuccess_0002, Function | MediumTest | Level1)66 HWTEST_F(HatsGetrandomTest, GetrandomMultipleCallsConsistencySuccess_0002, Function | MediumTest | Level1)
67 {
68 size_t len = 8;
69 char buffer1[len];
70 char buffer2[len];
71 ssize_t ret = 0;
72 ssize_t ret1 = 0;
73 ssize_t ret2 = 0;
74
75 ret1 = getrandom(buffer1, len, 0);
76 EXPECT_EQ(ret1, static_cast<ssize_t>(len));
77 ret2 = getrandom(buffer2, len, 0);
78 EXPECT_EQ(ret2, static_cast<ssize_t>(len));
79 ret = memcmp(buffer1, buffer2, len);
80 EXPECT_NE(ret, 0);
81 }
82
83 /*
84 * @tc.number : SUB_KERNEL_SYSCALL_GETRANDOM_0300
85 * @tc.name : GetrandomInvalidParametersBuffFail_0003
86 * @tc.desc : getrandom invalid parameters buffer address fail, return -1, and set errno.
87 * @tc.size : MediumTest
88 * @tc.type : Function
89 * @tc.level : Level 2
90 */
HWTEST_F(HatsGetrandomTest, GetrandomInvalidParametersBuffFail_0003, Function | MediumTest | Level2)91 HWTEST_F(HatsGetrandomTest, GetrandomInvalidParametersBuffFail_0003, Function | MediumTest | Level2)
92 {
93 size_t len = 10;
94
95 errno = 0;
96 ssize_t ret = getrandom(nullptr, len, 0);
97 EXPECT_EQ(ret, -1);
98 EXPECT_EQ(errno, EFAULT);
99 }
100
101 /*
102 * @tc.number : SUB_KERNEL_SYSCALL_GETRANDOM_0400
103 * @tc.name : GetrandomInvalidParametersFlagFail_0004
104 * @tc.desc : getrandom invalid parameters flag fail, return -1, and set errno.
105 * @tc.size : MediumTest
106 * @tc.type : Function
107 * @tc.level : Level 2
108 */
HWTEST_F(HatsGetrandomTest, GetrandomInvalidParametersFlagFail_0004, Function | MediumTest | Level2)109 HWTEST_F(HatsGetrandomTest, GetrandomInvalidParametersFlagFail_0004, Function | MediumTest | Level2)
110 {
111 size_t len = 32;
112 char buffer[len];
113 ssize_t invalidFlag = -1;
114
115 errno = 0;
116 ssize_t ret = getrandom(buffer, len, invalidFlag);
117 EXPECT_EQ(ret, -1);
118 EXPECT_EQ(errno, EINVAL);
119 }
120
121 /*
122 * @tc.number : SUB_KERNEL_SYSCALL_GETRANDOM_0500
123 * @tc.name : GetrandomGRND_RANDOMFlagSuccess_0005
124 * @tc.desc : getrandom use GRND_RANDOM flag success.
125 * @tc.size : MediumTest
126 * @tc.type : Function
127 * @tc.level : Level 1
128 */
HWTEST_F(HatsGetrandomTest, GetrandomGRND_RANDOMFlagSuccess_0005, Function | MediumTest | Level1)129 HWTEST_F(HatsGetrandomTest, GetrandomGRND_RANDOMFlagSuccess_0005, Function | MediumTest | Level1)
130 {
131 size_t len = 256;
132 char buffer[len];
133 ssize_t ret = getrandom(buffer, len, GRND_RANDOM | GRND_NONBLOCK);
134 EXPECT_EQ(ret, static_cast<ssize_t>(len));
135 }
136