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