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 <csignal>
17#include <cstdlib>
18#include <cstdio>
19#include <ctime>
20#include <unistd.h>
21#include <gtest/gtest.h>
22
23using namespace testing::ext;
24using namespace std;
25
26class ClockGetresApiTest : public testing::Test {
27public:
28    static void SetUpTestCase();
29    static void TearDownTestCase();
30    void SetUp();
31    void TearDown();
32private:
33};
34void ClockGetresApiTest::SetUp()
35{
36}
37void ClockGetresApiTest::TearDown()
38{
39}
40void ClockGetresApiTest::SetUpTestCase()
41{
42}
43void ClockGetresApiTest::TearDownTestCase()
44{
45}
46
47/*
48 * @tc.number : SUB_KERNEL_SYSCALL_CLOCK_GETRES_0100
49 * @tc.name   : ClockGetresInvalidClockId_0001
50 * @tc.desc   : Test clock_getres with an invalid clock_id.
51 * @tc.size   : MediumTest
52 * @tc.type   : Function
53 * @tc.level  : Level 2
54 */
55HWTEST_F(ClockGetresApiTest, ClockGetresInvalidClockId_0001, Function | MediumTest | Level2)
56{
57    struct timespec res;
58    clockid_t invalidClockId = -1;
59    int ret = clock_getres(invalidClockId, &res);
60
61    EXPECT_EQ(ret, -1);
62    EXPECT_EQ(errno, EINVAL);
63}
64
65/*
66 * @tc.number : SUB_KERNEL_SYSCALL_CLOCK_GETRES_0200
67 * @tc.name   : ClockGetresSuccess_0002
68 * @tc.desc   : Test clock_getres successfully gets the resolution of a valid clock.
69 * @tc.size   : MediumTest
70 * @tc.type   : Function
71 * @tc.level  : Level 1
72 */
73HWTEST_F(ClockGetresApiTest, ClockGetresSuccess_0002, Function | MediumTest | Level1)
74{
75    struct timespec res = { 0 };
76    clockid_t validClockId = CLOCK_REALTIME;
77
78    int ret = clock_getres(validClockId, &res);
79    EXPECT_EQ(ret, 0);
80
81    EXPECT_GE(res.tv_sec, 0);
82    EXPECT_GE(res.tv_nsec, 0);
83}