1 /**
2 * Copyright 2024 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 "TestInputChannel"
18 #define ATRACE_TAG ATRACE_TAG_INPUT
19
20 #include <TestInputChannel.h>
21
22 #include <sys/socket.h>
23 #include <unistd.h>
24
25 #include <array>
26
27 #include <android-base/logging.h>
28 #include <android-base/unique_fd.h>
29 #include <binder/IBinder.h>
30 #include <utils/StrongPointer.h>
31
32 namespace android {
33
34 namespace {
35
36 /**
37 * Returns a stub file descriptor by opening a socket pair and closing one of the fds. The returned
38 * fd can be used to construct an InputChannel.
39 */
generateFileDescriptor()40 base::unique_fd generateFileDescriptor() {
41 std::array<int, 2> kFileDescriptors;
42 LOG_IF(FATAL, ::socketpair(AF_UNIX, SOCK_SEQPACKET, 0, kFileDescriptors.data()) != 0)
43 << "TestInputChannel. Failed to create socket pair.";
44 LOG_IF(FATAL, ::close(kFileDescriptors[1]) != 0)
45 << "TestInputChannel. Failed to close file descriptor.";
46 return base::unique_fd{kFileDescriptors[0]};
47 }
48 } // namespace
49
50 // --- TestInputChannel ---
51
TestInputChannel(const std::string & name)52 TestInputChannel::TestInputChannel(const std::string& name)
53 : InputChannel{name, generateFileDescriptor(), sp<BBinder>::make()} {}
54
enqueueMessage(const InputMessage & message)55 void TestInputChannel::enqueueMessage(const InputMessage& message) {
56 mReceivedMessages.push(message);
57 }
58
sendMessage(const InputMessage * message)59 status_t TestInputChannel::sendMessage(const InputMessage* message) {
60 LOG_IF(FATAL, message == nullptr)
61 << "TestInputChannel " << getName() << ". No message was passed to sendMessage.";
62
63 mSentMessages.push(*message);
64 return OK;
65 }
66
receiveMessage()67 base::Result<InputMessage> TestInputChannel::receiveMessage() {
68 if (mReceivedMessages.empty()) {
69 return base::Error(WOULD_BLOCK);
70 }
71 InputMessage message = mReceivedMessages.front();
72 mReceivedMessages.pop();
73 return message;
74 }
75
probablyHasInput() const76 bool TestInputChannel::probablyHasInput() const {
77 return !mReceivedMessages.empty();
78 }
79
assertFinishMessage(uint32_t seq,bool handled)80 void TestInputChannel::assertFinishMessage(uint32_t seq, bool handled) {
81 ASSERT_FALSE(mSentMessages.empty())
82 << "TestInputChannel " << getName() << ". Cannot assert. mSentMessages is empty.";
83
84 const InputMessage& finishMessage = mSentMessages.front();
85
86 EXPECT_EQ(finishMessage.header.seq, seq)
87 << "TestInputChannel " << getName()
88 << ". Sequence mismatch. Message seq: " << finishMessage.header.seq
89 << " Expected seq: " << seq;
90
91 EXPECT_EQ(finishMessage.body.finished.handled, handled)
92 << "TestInputChannel " << getName()
93 << ". Handled value mismatch. Message val: " << std::boolalpha
94 << finishMessage.body.finished.handled << "Expected val: " << handled
95 << std::noboolalpha;
96 mSentMessages.pop();
97 }
98
assertNoSentMessages() const99 void TestInputChannel::assertNoSentMessages() const {
100 ASSERT_TRUE(mSentMessages.empty());
101 }
102 } // namespace android