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 #define LOG_TAG "dumpstate_hidl_hal_test"
18
19 #include <fcntl.h>
20 #include <unistd.h>
21
22 #include <android/hardware/dumpstate/1.0/IDumpstateDevice.h>
23 #include <cutils/native_handle.h>
24 #include <gtest/gtest.h>
25 #include <hidl/GtestPrinter.h>
26 #include <hidl/ServiceManagement.h>
27 #include <log/log.h>
28
29 using ::android::hardware::dumpstate::V1_0::IDumpstateDevice;
30 using ::android::hardware::Return;
31 using ::android::sp;
32
33 class DumpstateHidlTest : public ::testing::TestWithParam<std::string> {
34 public:
SetUp()35 virtual void SetUp() override {
36 dumpstate = IDumpstateDevice::getService(GetParam());
37 ASSERT_NE(dumpstate, nullptr) << "Could not get HIDL instance";
38 }
39
40 sp<IDumpstateDevice> dumpstate;
41 };
42
43 // Negative test: make sure dumpstateBoard() doesn't crash when passed a null pointer.
TEST_P(DumpstateHidlTest,TestNullHandle)44 TEST_P(DumpstateHidlTest, TestNullHandle) {
45 Return<void> status = dumpstate->dumpstateBoard(nullptr);
46
47 ASSERT_TRUE(status.isOk()) << "Status should be ok: " << status.description();
48 }
49
50 // Negative test: make sure dumpstateBoard() ignores a handle with no FD.
TEST_P(DumpstateHidlTest,TestHandleWithNoFd)51 TEST_P(DumpstateHidlTest, TestHandleWithNoFd) {
52 native_handle_t* handle = native_handle_create(0, 0);
53 ASSERT_NE(handle, nullptr) << "Could not create native_handle";
54
55 Return<void> status = dumpstate->dumpstateBoard(handle);
56
57 ASSERT_TRUE(status.isOk()) << "Status should be ok: " << status.description();
58
59 native_handle_close(handle);
60 native_handle_delete(handle);
61 }
62
63 // Positive test: make sure dumpstateBoard() writes something to the FD.
TEST_P(DumpstateHidlTest,TestOk)64 TEST_P(DumpstateHidlTest, TestOk) {
65 // Index 0 corresponds to the read end of the pipe; 1 to the write end.
66 int fds[2];
67 ASSERT_EQ(0, pipe2(fds, O_NONBLOCK)) << errno;
68
69 native_handle_t* handle = native_handle_create(1, 0);
70 ASSERT_NE(handle, nullptr) << "Could not create native_handle";
71 handle->data[0] = fds[1];
72
73 Return<void> status = dumpstate->dumpstateBoard(handle);
74 ASSERT_TRUE(status.isOk()) << "Status should be ok: " << status.description();
75
76 // Check that at least one byte was written
77 char buff;
78 ASSERT_EQ(1, read(fds[0], &buff, 1)) << "dumped nothing";
79
80 native_handle_close(handle);
81 native_handle_delete(handle);
82 }
83
84 // Positive test: make sure dumpstateBoard() doesn't crash with two FDs.
TEST_P(DumpstateHidlTest,TestHandleWithTwoFds)85 TEST_P(DumpstateHidlTest, TestHandleWithTwoFds) {
86 int fds1[2];
87 int fds2[2];
88 ASSERT_EQ(0, pipe2(fds1, O_NONBLOCK)) << errno;
89 ASSERT_EQ(0, pipe2(fds2, O_NONBLOCK)) << errno;
90
91 native_handle_t* handle = native_handle_create(2, 0);
92 ASSERT_NE(handle, nullptr) << "Could not create native_handle";
93 handle->data[0] = fds1[1];
94 handle->data[1] = fds2[1];
95
96 Return<void> status = dumpstate->dumpstateBoard(handle);
97 ASSERT_TRUE(status.isOk()) << "Status should be ok: " << status.description();
98
99 native_handle_close(handle);
100 native_handle_delete(handle);
101 }
102
103 INSTANTIATE_TEST_SUITE_P(
104 PerInstance, DumpstateHidlTest,
105 testing::ValuesIn(android::hardware::getAllHalInstanceNames(IDumpstateDevice::descriptor)),
106 android::hardware::PrintInstanceNameToString);
107