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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "TestHelpers.h"
#include <unistd.h>
#include <time.h>
#include <errno.h>
#include <gtest/gtest.h>
#include <input/InputTransport.h>
#include <utils/Timers.h>
#include <utils/StopWatch.h>
#include <utils/StrongPointer.h>
namespace android {
class InputChannelTest : public testing::Test {
protected:
virtual void SetUp() { }
virtual void TearDown() { }
};
TEST_F(InputChannelTest, ConstructorAndDestructor_TakesOwnershipOfFileDescriptors) {
// Our purpose here is to verify that the input channel destructor closes the
// file descriptor provided to it. One easy way is to provide it with one end
// of a pipe and to check for EPIPE on the other end after the channel is destroyed.
Pipe pipe;
sp<InputChannel> inputChannel = new InputChannel(String8("channel name"), pipe.sendFd);
EXPECT_STREQ("channel name", inputChannel->getName().string())
<< "channel should have provided name";
EXPECT_EQ(pipe.sendFd, inputChannel->getFd())
<< "channel should have provided fd";
inputChannel.clear(); // destroys input channel
EXPECT_EQ(-EPIPE, pipe.readSignal())
<< "channel should have closed fd when destroyed";
// clean up fds of Pipe endpoints that were closed so we don't try to close them again
pipe.sendFd = -1;
}
TEST_F(InputChannelTest, OpenInputChannelPair_ReturnsAPairOfConnectedChannels) {
sp<InputChannel> serverChannel, clientChannel;
status_t result = InputChannel::openInputChannelPair(String8("channel name"),
serverChannel, clientChannel);
ASSERT_EQ(OK, result)
<< "should have successfully opened a channel pair";
// Name
EXPECT_STREQ("channel name (server)", serverChannel->getName().string())
<< "server channel should have suffixed name";
EXPECT_STREQ("channel name (client)", clientChannel->getName().string())
<< "client channel should have suffixed name";
// Server->Client communication
InputMessage serverMsg;
memset(&serverMsg, 0, sizeof(InputMessage));
serverMsg.header.type = InputMessage::TYPE_KEY;
serverMsg.body.key.action = AKEY_EVENT_ACTION_DOWN;
EXPECT_EQ(OK, serverChannel->sendMessage(&serverMsg))
<< "server channel should be able to send message to client channel";
InputMessage clientMsg;
EXPECT_EQ(OK, clientChannel->receiveMessage(&clientMsg))
<< "client channel should be able to receive message from server channel";
EXPECT_EQ(serverMsg.header.type, clientMsg.header.type)
<< "client channel should receive the correct message from server channel";
EXPECT_EQ(serverMsg.body.key.action, clientMsg.body.key.action)
<< "client channel should receive the correct message from server channel";
// Client->Server communication
InputMessage clientReply;
memset(&clientReply, 0, sizeof(InputMessage));
clientReply.header.type = InputMessage::TYPE_FINISHED;
clientReply.body.finished.seq = 0x11223344;
clientReply.body.finished.handled = true;
EXPECT_EQ(OK, clientChannel->sendMessage(&clientReply))
<< "client channel should be able to send message to server channel";
InputMessage serverReply;
EXPECT_EQ(OK, serverChannel->receiveMessage(&serverReply))
<< "server channel should be able to receive message from client channel";
EXPECT_EQ(clientReply.header.type, serverReply.header.type)
<< "server channel should receive the correct message from client channel";
EXPECT_EQ(clientReply.body.finished.seq, serverReply.body.finished.seq)
<< "server channel should receive the correct message from client channel";
EXPECT_EQ(clientReply.body.finished.handled, serverReply.body.finished.handled)
<< "server channel should receive the correct message from client channel";
}
TEST_F(InputChannelTest, ReceiveSignal_WhenNoSignalPresent_ReturnsAnError) {
sp<InputChannel> serverChannel, clientChannel;
status_t result = InputChannel::openInputChannelPair(String8("channel name"),
serverChannel, clientChannel);
ASSERT_EQ(OK, result)
<< "should have successfully opened a channel pair";
InputMessage msg;
EXPECT_EQ(WOULD_BLOCK, clientChannel->receiveMessage(&msg))
<< "receiveMessage should have returned WOULD_BLOCK";
}
TEST_F(InputChannelTest, ReceiveSignal_WhenPeerClosed_ReturnsAnError) {
sp<InputChannel> serverChannel, clientChannel;
status_t result = InputChannel::openInputChannelPair(String8("channel name"),
serverChannel, clientChannel);
ASSERT_EQ(OK, result)
<< "should have successfully opened a channel pair";
serverChannel.clear(); // close server channel
InputMessage msg;
EXPECT_EQ(DEAD_OBJECT, clientChannel->receiveMessage(&msg))
<< "receiveMessage should have returned DEAD_OBJECT";
}
TEST_F(InputChannelTest, SendSignal_WhenPeerClosed_ReturnsAnError) {
sp<InputChannel> serverChannel, clientChannel;
status_t result = InputChannel::openInputChannelPair(String8("channel name"),
serverChannel, clientChannel);
ASSERT_EQ(OK, result)
<< "should have successfully opened a channel pair";
serverChannel.clear(); // close server channel
InputMessage msg;
msg.header.type = InputMessage::TYPE_KEY;
EXPECT_EQ(DEAD_OBJECT, clientChannel->sendMessage(&msg))
<< "sendMessage should have returned DEAD_OBJECT";
}
} // namespace android
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