1 /*
2 * Copyright (C) 2010 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 #include "TestHelpers.h"
18
19 #include <unistd.h>
20 #include <time.h>
21 #include <errno.h>
22
23 #include <gtest/gtest.h>
24 #include <input/InputTransport.h>
25 #include <utils/Timers.h>
26 #include <utils/StopWatch.h>
27 #include <utils/StrongPointer.h>
28
29 namespace android {
30
31 class InputChannelTest : public testing::Test {
32 protected:
SetUp()33 virtual void SetUp() { }
TearDown()34 virtual void TearDown() { }
35 };
36
37
TEST_F(InputChannelTest,ConstructorAndDestructor_TakesOwnershipOfFileDescriptors)38 TEST_F(InputChannelTest, ConstructorAndDestructor_TakesOwnershipOfFileDescriptors) {
39 // Our purpose here is to verify that the input channel destructor closes the
40 // file descriptor provided to it. One easy way is to provide it with one end
41 // of a pipe and to check for EPIPE on the other end after the channel is destroyed.
42 Pipe pipe;
43
44 sp<InputChannel> inputChannel = new InputChannel(String8("channel name"), pipe.sendFd);
45
46 EXPECT_STREQ("channel name", inputChannel->getName().string())
47 << "channel should have provided name";
48 EXPECT_EQ(pipe.sendFd, inputChannel->getFd())
49 << "channel should have provided fd";
50
51 inputChannel.clear(); // destroys input channel
52
53 EXPECT_EQ(-EPIPE, pipe.readSignal())
54 << "channel should have closed fd when destroyed";
55
56 // clean up fds of Pipe endpoints that were closed so we don't try to close them again
57 pipe.sendFd = -1;
58 }
59
TEST_F(InputChannelTest,OpenInputChannelPair_ReturnsAPairOfConnectedChannels)60 TEST_F(InputChannelTest, OpenInputChannelPair_ReturnsAPairOfConnectedChannels) {
61 sp<InputChannel> serverChannel, clientChannel;
62
63 status_t result = InputChannel::openInputChannelPair(String8("channel name"),
64 serverChannel, clientChannel);
65
66 ASSERT_EQ(OK, result)
67 << "should have successfully opened a channel pair";
68
69 // Name
70 EXPECT_STREQ("channel name (server)", serverChannel->getName().string())
71 << "server channel should have suffixed name";
72 EXPECT_STREQ("channel name (client)", clientChannel->getName().string())
73 << "client channel should have suffixed name";
74
75 // Server->Client communication
76 InputMessage serverMsg;
77 memset(&serverMsg, 0, sizeof(InputMessage));
78 serverMsg.header.type = InputMessage::TYPE_KEY;
79 serverMsg.body.key.action = AKEY_EVENT_ACTION_DOWN;
80 EXPECT_EQ(OK, serverChannel->sendMessage(&serverMsg))
81 << "server channel should be able to send message to client channel";
82
83 InputMessage clientMsg;
84 EXPECT_EQ(OK, clientChannel->receiveMessage(&clientMsg))
85 << "client channel should be able to receive message from server channel";
86 EXPECT_EQ(serverMsg.header.type, clientMsg.header.type)
87 << "client channel should receive the correct message from server channel";
88 EXPECT_EQ(serverMsg.body.key.action, clientMsg.body.key.action)
89 << "client channel should receive the correct message from server channel";
90
91 // Client->Server communication
92 InputMessage clientReply;
93 memset(&clientReply, 0, sizeof(InputMessage));
94 clientReply.header.type = InputMessage::TYPE_FINISHED;
95 clientReply.body.finished.seq = 0x11223344;
96 clientReply.body.finished.handled = true;
97 EXPECT_EQ(OK, clientChannel->sendMessage(&clientReply))
98 << "client channel should be able to send message to server channel";
99
100 InputMessage serverReply;
101 EXPECT_EQ(OK, serverChannel->receiveMessage(&serverReply))
102 << "server channel should be able to receive message from client channel";
103 EXPECT_EQ(clientReply.header.type, serverReply.header.type)
104 << "server channel should receive the correct message from client channel";
105 EXPECT_EQ(clientReply.body.finished.seq, serverReply.body.finished.seq)
106 << "server channel should receive the correct message from client channel";
107 EXPECT_EQ(clientReply.body.finished.handled, serverReply.body.finished.handled)
108 << "server channel should receive the correct message from client channel";
109 }
110
TEST_F(InputChannelTest,ReceiveSignal_WhenNoSignalPresent_ReturnsAnError)111 TEST_F(InputChannelTest, ReceiveSignal_WhenNoSignalPresent_ReturnsAnError) {
112 sp<InputChannel> serverChannel, clientChannel;
113
114 status_t result = InputChannel::openInputChannelPair(String8("channel name"),
115 serverChannel, clientChannel);
116
117 ASSERT_EQ(OK, result)
118 << "should have successfully opened a channel pair";
119
120 InputMessage msg;
121 EXPECT_EQ(WOULD_BLOCK, clientChannel->receiveMessage(&msg))
122 << "receiveMessage should have returned WOULD_BLOCK";
123 }
124
TEST_F(InputChannelTest,ReceiveSignal_WhenPeerClosed_ReturnsAnError)125 TEST_F(InputChannelTest, ReceiveSignal_WhenPeerClosed_ReturnsAnError) {
126 sp<InputChannel> serverChannel, clientChannel;
127
128 status_t result = InputChannel::openInputChannelPair(String8("channel name"),
129 serverChannel, clientChannel);
130
131 ASSERT_EQ(OK, result)
132 << "should have successfully opened a channel pair";
133
134 serverChannel.clear(); // close server channel
135
136 InputMessage msg;
137 EXPECT_EQ(DEAD_OBJECT, clientChannel->receiveMessage(&msg))
138 << "receiveMessage should have returned DEAD_OBJECT";
139 }
140
TEST_F(InputChannelTest,SendSignal_WhenPeerClosed_ReturnsAnError)141 TEST_F(InputChannelTest, SendSignal_WhenPeerClosed_ReturnsAnError) {
142 sp<InputChannel> serverChannel, clientChannel;
143
144 status_t result = InputChannel::openInputChannelPair(String8("channel name"),
145 serverChannel, clientChannel);
146
147 ASSERT_EQ(OK, result)
148 << "should have successfully opened a channel pair";
149
150 serverChannel.clear(); // close server channel
151
152 InputMessage msg;
153 msg.header.type = InputMessage::TYPE_KEY;
154 EXPECT_EQ(DEAD_OBJECT, clientChannel->sendMessage(&msg))
155 << "sendMessage should have returned DEAD_OBJECT";
156 }
157
158
159 } // namespace android
160