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#include <TestSupport.h>
#include <BackgroundEventLoop.h>
#include <ServerKit/Channel.h>
#include <Constants.h>
#include <Utils.h>
#include <StrIntTools/StrIntUtils.h>
using namespace Passenger;
using namespace Passenger::ServerKit;
using namespace Passenger::MemoryKit;
using namespace std;
namespace tut {
#define CONSUME_FULLY -2
struct ServerKit_ChannelTest: public TestBase, public ServerKit::Hooks {
BackgroundEventLoop bg;
ServerKit::Schema skSchema;
ServerKit::Context context;
Channel channel;
boost::mutex syncher;
string log;
int toConsume;
bool endConsume;
unsigned int counter, idleCount, endAcked, bytesConsumed;
Channel::State lastState;
ServerKit_ChannelTest()
: bg(false, true),
context(skSchema),
channel(&context)
{
context.libev = bg.safe;
context.libuv = bg.libuv_loop;
context.initialize();
channel.dataCallback = dataCallback;
channel.consumedCallback = consumedCallback;
channel.hooks = this;
Hooks::impl = NULL;
Hooks::userData = NULL;
toConsume = CONSUME_FULLY;
endConsume = false;
counter = 0;
idleCount = 0;
endAcked = 0;
bytesConsumed = 0;
lastState = Channel::IDLE;
bg.start();
}
~ServerKit_ChannelTest() {
bg.safe->runSync(boost::bind(&ServerKit_ChannelTest::deinitializeChannel,
this));
bg.stop();
}
void deinitializeChannel() {
channel.deinitialize(); // Cancel any event loop next tick callbacks.
}
static Channel::Result dataCallback(Channel *channel, const mbuf &buffer, int errcode) {
ServerKit_ChannelTest *self = (ServerKit_ChannelTest *) channel->hooks;
boost::lock_guard<boost::mutex> l(self->syncher);
if (errcode == 0) {
self->counter++;
if (buffer.empty()) {
self->log.append("EOF\n");
} else {
StaticString str(buffer.start, buffer.size());
self->log.append("Data: " + cEscapeString(str) + "\n");
}
} else {
self->log.append("Error: " + toString(errcode) + "\n");
}
if (self->toConsume == CONSUME_FULLY) {
return Channel::Result(buffer.size(), self->endConsume);
} else {
return Channel::Result(self->toConsume, self->endConsume);
}
}
static void consumedCallback(Channel *channel, unsigned int size) {
ServerKit_ChannelTest *self = (ServerKit_ChannelTest *) channel->hooks;
boost::lock_guard<boost::mutex> l(self->syncher);
self->bytesConsumed += size;
if (channel->isIdle()) {
self->idleCount++;
} else if (channel->endAcked()) {
self->endAcked++;
}
}
unsigned int getCounter() {
boost::lock_guard<boost::mutex> l(syncher);
return counter;
}
void startChannel() {
bg.safe->runLater(boost::bind(&ServerKit_ChannelTest::realStartChannel, this));
}
void realStartChannel() {
channel.start();
}
void stopChannel() {
bg.safe->runLater(boost::bind(&ServerKit_ChannelTest::realStopChannel, this));
}
void realStopChannel() {
channel.stop();
}
bool channelIsStarted() {
bool result;
bg.safe->runSync(boost::bind(&ServerKit_ChannelTest::realChannelIsStarted, this, &result));
return result;
}
void realChannelIsStarted(bool *result) {
*result = channel.isStarted();
}
bool channelHasError() {
bool result;
bg.safe->runSync(boost::bind(&ServerKit_ChannelTest::realChannelHasError, this, &result));
return result;
}
void realChannelHasError(bool *result) {
*result = channel.hasError();
}
void feedChannel(const string &data) {
bg.safe->runLater(boost::bind(&ServerKit_ChannelTest::realFeedChannel, this, data));
}
void realFeedChannel(string data) {
assert(data.size() < context.mbuf_pool.mbuf_block_chunk_size);
mbuf buf = mbuf_get(&context.mbuf_pool);
memcpy(buf.start, data.data(), data.size());
buf = mbuf(buf, 0, (unsigned int) data.size());
channel.feed(buf);
}
void feedChannelError(int errcode) {
bg.safe->runLater(boost::bind(&ServerKit_ChannelTest::realFeedChannelError,
this, errcode));
}
void realFeedChannelError(int errcode) {
channel.feedError(errcode);
}
void channelConsumed(int size, bool end) {
bg.safe->runLater(boost::bind(&ServerKit_ChannelTest::realChannelConsumed,
this, size, end));
}
void realChannelConsumed(int size, bool end) {
channel.consumed(size, end);
}
void setChannelDataCallback(const Channel::DataCallback &callback) {
bg.safe->runSync(boost::bind(&ServerKit_ChannelTest::realSetChannelDataCallback,
this, callback));
}
void realSetChannelDataCallback(Channel::DataCallback callback) {
channel.dataCallback = callback;
}
Channel::State getChannelState() {
Channel::State result;
bg.safe->runSync(boost::bind(&ServerKit_ChannelTest::realGetChannelState, this, &result));
return result;
}
void realGetChannelState(Channel::State *result) {
*result = channel.getState();
}
int getChannelErrcode() {
int result;
bg.safe->runSync(boost::bind(&ServerKit_ChannelTest::realGetChannelErrcode, this, &result));
return result;
}
void realGetChannelErrcode(int *result) {
*result = channel.getErrcode();
}
bool channelIsAcceptingInput() {
bool result;
bg.safe->runSync(boost::bind(&ServerKit_ChannelTest::realChannelIsAcceptingInput, this, &result));
return result;
}
void realChannelIsAcceptingInput(bool *result) {
*result = channel.acceptingInput();
}
bool channelMayAcceptInputLater() {
bool result;
bg.safe->runSync(boost::bind(&ServerKit_ChannelTest::realChannelMayAcceptInputLater, this, &result));
return result;
}
void realChannelMayAcceptInputLater(bool *result) {
*result = channel.mayAcceptInputLater();
}
void logChannelStateLater() {
bg.safe->runLater(boost::bind(&ServerKit_ChannelTest::logChannelState, this));
}
void logChannelState() {
boost::lock_guard<boost::mutex> l(syncher);
log.append("State: " + toString((int) channel.getState()) + "\n");
}
void feedSomeDataAndWaitForConsumption() {
feedChannel("aaabbb");
EVENTUALLY(5,
boost::lock_guard<boost::mutex> l(syncher);
result = !log.empty();
);
{
boost::lock_guard<boost::mutex> l(syncher);
ensure_equals(log, "Data: aaabbb\n");
}
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
}
};
#define LOCK() boost::unique_lock<boost::mutex> l(syncher)
#define UNLOCK() l.unlock()
#define DEFINE_DATA_CALLBACK_METHOD(name, code) \
static Channel::Result name(Channel *channel, const mbuf &buffer, int errcode) { \
ServerKit_ChannelTest *self = (ServerKit_ChannelTest *) channel->hooks; \
boost::mutex &syncher = self->syncher; \
/* Shut up compiler warning */ \
(void) syncher; \
code \
}
DEFINE_TEST_GROUP_WITH_LIMIT(ServerKit_ChannelTest, 100);
/***** Initial state *****/
TEST_METHOD(1) {
set_test_name("It is idle, accepts input, is not error'red and hasn't ended");
ensure_equals(channel.getState(), Channel::IDLE);
ensure(channel.acceptingInput());
ensure(!channel.hasError());
ensure(!channel.ended());
}
TEST_METHOD(2) {
set_test_name("Upon being fed data, it calls the callback, transitions "
"to the idle state and calls the consumption callback");
feedChannel("aaabbb");
EVENTUALLY(5,
LOCK();
result = !log.empty();
);
{
LOCK();
ensure_equals(log, "Data: aaabbb\n");
ensure_equals(idleCount, 1u);
ensure_equals(bytesConsumed, 6u);
}
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
}
TEST_METHOD(3) {
set_test_name("Upon being fed EOF, it calls the callback with an empty buffer "
"and transitions to the EOF state");
feedChannel("");
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(log, "EOF\n");
ensure_equals(endAcked, 1u);
ensure_equals(bytesConsumed, 0u);
}
}
TEST_METHOD(4) {
set_test_name("Upon being fed an error, it calls the callback with an error code "
"and transitions to the EOF state");
feedChannelError(EIO);
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(log, "Error: " + toString(EIO) + "\n");
ensure_equals(endAcked, 1u);
ensure_equals(bytesConsumed, 0u);
}
}
/***** When the callback is done consuming data and the Channel is now idle *****/
TEST_METHOD(10) {
set_test_name("It is idle and accepts input");
feedSomeDataAndWaitForConsumption();
ensure_equals(getChannelState(), Channel::IDLE);
ensure(channelIsAcceptingInput());
}
TEST_METHOD(11) {
set_test_name("It calls the consumption callback");
feedSomeDataAndWaitForConsumption();
LOCK();
ensure_equals(idleCount, 1u);
}
TEST_METHOD(12) {
set_test_name("Upon being fed data, it calls the callback and transitions "
"to the idle state");
feedSomeDataAndWaitForConsumption();
feedChannel("aaabbb");
EVENTUALLY(5,
LOCK();
result = log.find("Data: aaabbb\n") != string::npos;
);
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
}
TEST_METHOD(13) {
set_test_name("Upon being fed EOF, it calls the callback with an empty "
"buffer and transitions to the EOF state");
feedSomeDataAndWaitForConsumption();
feedChannel("");
EVENTUALLY(5,
LOCK();
result = log.find("EOF") != string::npos;
);
{
LOCK();
ensure_equals(log,
"Data: aaabbb\n"
"EOF\n");
}
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
}
TEST_METHOD(14) {
set_test_name("Upon being fed an error, it calls the callback with an "
"error code and transitions to the EOF state");
feedSomeDataAndWaitForConsumption();
feedChannelError(EIO);
EVENTUALLY(5,
LOCK();
result = log.find("Error") != string::npos;
);
{
LOCK();
ensure_equals(log,
"Data: aaabbb\n"
"Error: " + toString(EIO) + "\n");
}
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
}
/***** When the callback is in progress *****/
DEFINE_DATA_CALLBACK_METHOD(test_20_callback,
LOCK();
self->lastState = self->channel.getState();
return Channel::Result(buffer.size(), false);
);
TEST_METHOD(20) {
set_test_name("It is in the calling state");
setChannelDataCallback(test_20_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(lastState, Channel::CALLING);
}
}
DEFINE_DATA_CALLBACK_METHOD(test_21_callback,
LOCK();
self->counter++;
if (self->counter == 1) {
self->log.append("Feeding error\n");
UNLOCK();
self->channel.feedError(EIO);
} else {
self->log.append("Received error: " + toString(errcode) + "\n");
UNLOCK();
}
return Channel::Result(buffer.size(), false);
);
TEST_METHOD(21) {
set_test_name("Upon being fed an error, it transitions to the EOF state immediately "
"and doesn't call the callback with an error code");
setChannelDataCallback(test_21_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(log,
"Feeding error\n");
}
}
DEFINE_DATA_CALLBACK_METHOD(test_22_callback,
self->channel.start();
LOCK();
self->log.append("Channel state: " + toString(self->channel.getState()) + "\n");
self->log.append("Channel started: " + toString(self->channel.isStarted()) + "\n");
return Channel::Result(buffer.size(), false);
);
TEST_METHOD(22) {
set_test_name("Upon calling start(), nothing happens");
setChannelDataCallback(test_22_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(log,
"Channel state: " + toString(Channel::CALLING) + "\n"
"Channel started: 1\n");
}
}
DEFINE_DATA_CALLBACK_METHOD(test_23_callback,
self->channel.stop();
return Channel::Result(buffer.size(), false);
);
TEST_METHOD(23) {
set_test_name("Upon calling stop(), it transitions to the stopped state");
setChannelDataCallback(test_23_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::STOPPED;
);
SHOULD_NEVER_HAPPEN(100,
result = getChannelState() != Channel::STOPPED;
);
}
DEFINE_DATA_CALLBACK_METHOD(test_24_callback,
self->channel.stop();
{
LOCK();
self->log.append("Channel state: " + toString(self->channel.getState()) + "\n");
self->log.append("Channel started: " + toString(self->channel.isStarted()) + "\n");
}
self->channel.start();
{
LOCK();
self->log.append("Channel state: " + toString(self->channel.getState()) + "\n");
self->log.append("Channel started: " + toString(self->channel.isStarted()) + "\n");
}
return Channel::Result(buffer.size(), false);
);
TEST_METHOD(24) {
set_test_name("Upon calling stop() then start(), it transitions to the calling state");
setChannelDataCallback(test_24_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(log,
"Channel state: " + toString(Channel::STOPPED_WHILE_CALLING) + "\n"
"Channel started: 0\n"
"Channel state: " + toString(Channel::CALLING) + "\n"
"Channel started: 1\n");
}
}
DEFINE_DATA_CALLBACK_METHOD(test_25_callback,
LOCK();
self->counter++;
if (self->counter == 1) {
UNLOCK();
self->channel.stop();
self->channel.start();
} else {
StaticString str(buffer.start, buffer.size());
self->log.append("Data: " + cEscapeString(str) + "\n");
self->log.append("Error: " + toString(errcode) + "\n");
}
return Channel::Result(buffer.size(), false);
);
TEST_METHOD(25) {
set_test_name("Upon calling stop() then start(), it calls the callback next time data is fed");
setChannelDataCallback(test_25_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
feedChannel("def");
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(log,
"Data: def\n"
"Error: 0\n");
}
}
DEFINE_DATA_CALLBACK_METHOD(test_26_27_callback,
LOCK();
self->counter++;
if (self->counter == 1) {
UNLOCK();
self->channel.stop();
self->channel.start();
} else {
StaticString str(buffer.start, buffer.size());
self->log.append("Data: " + cEscapeString(str) + "\n");
self->log.append("Error: " + toString(errcode) + "\n");
}
return Channel::Result(buffer.size(), false);
);
TEST_METHOD(26) {
set_test_name("Upon calling stop() then start(), it calls the callback next time EOF is fed");
setChannelDataCallback(test_26_27_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
feedChannel("");
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(log,
"Data: \n"
"Error: 0\n");
}
}
TEST_METHOD(27) {
set_test_name("Upon calling stop() then start(), it calls the callback next time an error is fed");
setChannelDataCallback(test_26_27_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
feedChannelError(EIO);
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(log,
"Data: \n"
"Error: " + toString(EIO) + "\n");
}
}
DEFINE_DATA_CALLBACK_METHOD(test_28_callback,
self->channel.deinitialize();
LOCK();
self->log.append("Buffer size: " + toString(buffer.size()));
return Channel::Result(buffer.size(), false);
);
TEST_METHOD(28) {
set_test_name("Deinitializing the channel doesn't invalidate the buffer argument");
setChannelDataCallback(test_28_callback);
feedChannel("abc");
EVENTUALLY(5,
result = !log.empty();
);
ensure_equals(log, "Buffer size: 3");
}
/***** When the callback is not in progress *****/
TEST_METHOD(30) {
set_test_name("Upon calling start(), nothing happens");
startChannel();
ensure_equals(getChannelState(), Channel::IDLE);
ensure(channelIsStarted());
}
TEST_METHOD(31) {
set_test_name("Upon calling stop(), it transitions to the stopped state");
stopChannel();
ensure_equals(getChannelState(), Channel::STOPPED);
ensure(!channelIsStarted());
}
static void test_32_callback(ServerKit_ChannelTest *self) {
self->channel.stop();
self->channel.start();
{
boost::mutex &syncher = self->syncher;
LOCK();
self->log.append("Channel state: " + toString(self->channel.getState()) + "\n");
}
}
TEST_METHOD(32) {
set_test_name("Upon calling stop() then start(), it transitions to the idle state");
bg.safe->runLater(boost::bind(test_32_callback, this));
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(log,
"Channel state: " + toString(Channel::IDLE) + "\n");
}
}
static void test_33_callback(ServerKit_ChannelTest *self) {
self->channel.stop();
self->channel.start();
{
boost::mutex &syncher = self->syncher;
LOCK();
self->log.append("Channel state: " + toString(self->channel.getState()) + "\n");
}
self->channel.feed(mbuf("abc"));
}
TEST_METHOD(33) {
set_test_name("Upon calling stop() then start(), it calls the callback next time data is fed");
bg.safe->runLater(boost::bind(test_33_callback, this));
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(log,
"Channel state: " + toString(Channel::IDLE) + "\n"
"Data: abc\n");
ensure_equals(counter, 1u);
}
}
static void test_34_callback(ServerKit_ChannelTest *self) {
self->channel.stop();
self->channel.start();
{
boost::mutex &syncher = self->syncher;
LOCK();
self->log.append("Channel state: " + toString(self->channel.getState()) + "\n");
}
self->channel.feed(mbuf());
}
TEST_METHOD(34) {
set_test_name("Upon calling stop() then start(), it calls the callback next time EOF is fed");
bg.safe->runLater(boost::bind(test_34_callback, this));
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(log,
"Channel state: " + toString(Channel::IDLE) + "\n"
"EOF\n");
ensure_equals(counter, 1u);
}
}
static void test_35_callback(ServerKit_ChannelTest *self) {
self->channel.stop();
self->channel.start();
{
boost::mutex &syncher = self->syncher;
LOCK();
self->log.append("Channel state: " + toString(self->channel.getState()) + "\n");
}
self->channel.feedError(EIO);
}
TEST_METHOD(35) {
set_test_name("Upon calling stop() then start(), it calls the callback next time an error is fed");
bg.safe->runLater(boost::bind(test_35_callback, this));
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(log,
"Channel state: " + toString(Channel::IDLE) + "\n"
"Error: " + toString(EIO) + "\n");
ensure_equals(counter, 0u);
}
}
/***** If the callback immediately consumed the buffer partially *****/
TEST_METHOD(40) {
set_test_name("If the callback has ended consumption, the Channel transitions "
"to the 'EOF reached' state and calls the endAck callback");
{
LOCK();
toConsume = 1;
endConsume = true;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(endAcked, 1u);
ensure_equals(log,
"Data: abc\n");
}
}
TEST_METHOD(41) {
set_test_name("If the callback has not ended consumption, the Channel calls "
"the callback again with the remainder of the the buffer, until the buffer is fully consumed");
{
LOCK();
toConsume = 1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(log,
"Data: abc\n"
"Data: bc\n"
"Data: c\n");
}
}
DEFINE_DATA_CALLBACK_METHOD(test_42_callback,
LOCK();
self->counter++;
if (self->counter != 1) {
UNLOCK();
self->channel.feedError(EIO);
}
return Channel::Result(1, false);
);
TEST_METHOD(42) {
set_test_name("Upon being fed an error, it transitions to the EOF state immediately, "
"and it won't call the callback with an error code");
setChannelDataCallback(test_42_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(counter, 2u);
ensure(channelHasError());
ensure_equals(getChannelErrcode(), EIO);
}
}
DEFINE_DATA_CALLBACK_METHOD(test_43_callback,
LOCK();
self->counter++;
if (self->counter == 1) {
UNLOCK();
self->channel.stop();
}
return Channel::Result(1, false);
);
TEST_METHOD(43) {
set_test_name("If stop() was called, it doesn't call the callback with the "
"remainder of the buffer");
setChannelDataCallback(test_43_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::STOPPED;
);
{
LOCK();
ensure_equals(counter, 1u);
}
}
DEFINE_DATA_CALLBACK_METHOD(test_44_callback,
self->channel.stop();
LOCK();
self->counter++;
return Channel::Result(1, true);
);
TEST_METHOD(44) {
set_test_name("If stop() was called, and the callback has ended consumption, then "
"the Channel transitions to the 'EOF reached' state and calls the endAck callback");
setChannelDataCallback(test_44_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(counter, 1u);
ensure_equals(endAcked, 1u);
}
}
DEFINE_DATA_CALLBACK_METHOD(test_45_callback,
self->channel.stop();
self->channel.start();
LOCK();
self->counter++;
return Channel::Result(1, true);
);
TEST_METHOD(45) {
set_test_name("If stop() then start() was called, and the channel has ended consumption, "
"then it transitions to the 'EOF reached' state and calls the endAck callback");
setChannelDataCallback(test_45_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(counter, 1u);
ensure_equals(endAcked, 1u);
}
}
DEFINE_DATA_CALLBACK_METHOD(test_46_callback,
LOCK();
StaticString str(buffer.start, buffer.size());
self->counter++;
self->log.append("Data: " + cEscapeString(str) + "\n");
if (self->counter == 1) {
UNLOCK();
self->channel.stop();
self->channel.start();
}
return Channel::Result(1, false);
);
TEST_METHOD(46) {
set_test_name("If stop() then start() was called, and the channel has not ended consumption, "
"then it calls the callback with the remainder of the data in the next tick");
setChannelDataCallback(test_46_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(counter, 3u);
ensure_equals(log,
"Data: abc\n"
"Data: bc\n"
"Data: c\n");
}
}
DEFINE_DATA_CALLBACK_METHOD(test_47_callback,
LOCK();
StaticString str(buffer.start, buffer.size());
self->counter++;
self->log.append("Data: " + cEscapeString(str) + "\n");
if (self->counter == 1) {
UNLOCK();
self->channel.deinitialize();
}
return Channel::Result(1, false);
);
TEST_METHOD(47) {
set_test_name("If it had been deinitialized in the callback, it doesn't call the "
"callback again");
setChannelDataCallback(test_47_callback);
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::CALLING;
);
{
LOCK();
ensure_equals(counter, 1u);
ensure_equals(log,
"Data: abc\n");
}
}
TEST_METHOD(48) {
set_test_name("If the callback has ended consumption, upon fully consuming the buffer, "
"the Channel transitions to the 'EOF reached' state and calls the endAck callback");
{
LOCK();
endConsume = true;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(counter, 1u);
ensure_equals(endAcked, 1u);
}
}
TEST_METHOD(49) {
set_test_name("If the callback has not ended consumption, upon fully "
"consuming the buffer, the Channel calls the consumption callback");
{
LOCK();
toConsume = 1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(counter, 3u);
ensure_equals(idleCount, 1u);
}
}
/***** If the callback immediately consumed the buffer fully *****/
TEST_METHOD(50) {
set_test_name("If the callback has ended consumption, the Channel"
"transitions to the 'EOF reached' state and calls the endAck callback");
{
LOCK();
endConsume = true;
}
feedChannel("aaabbb");
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(log, "Data: aaabbb\n");
ensure_equals(endAcked, 1u);
}
}
TEST_METHOD(52) {
set_test_name("If the callback has not ended consumption, "
"the Channel transitions to the idle state and calls the consumption callback");
feedSomeDataAndWaitForConsumption();
ensure_equals(getChannelState(), Channel::IDLE);
ensure_equals(idleCount, 1u);
}
/***** If the callback deferred consumption *****/
TEST_METHOD(55) {
set_test_name("It transitions to the 'waiting for callback' state");
{
LOCK();
toConsume = -1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
SHOULD_NEVER_HAPPEN(100,
result = getChannelState() != Channel::WAITING_FOR_CALLBACK;
);
}
TEST_METHOD(56) {
set_test_name("Upon being fed an error, it transitions to the 'EOF waiting' state");
{
LOCK();
toConsume = -1;
}
feedChannelError(EIO);
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK_WITH_EOF_OR_ERROR;
);
SHOULD_NEVER_HAPPEN(100,
result = getChannelState() != Channel::WAITING_FOR_CALLBACK_WITH_EOF_OR_ERROR;
);
ensure_equals(getChannelErrcode(), EIO);
}
TEST_METHOD(57) {
set_test_name("When consumed() is called with the end flag, it "
"transitions to the 'EOF reached' state and calls the endAck callback");
{
LOCK();
toConsume = -1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
channelConsumed(3, true);
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(endAcked, 1u);
}
}
TEST_METHOD(58) {
set_test_name("When consumed() is called with the full buffer size, "
"it transitions to the idle state");
{
LOCK();
toConsume = -1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
channelConsumed(3, false);
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
}
TEST_METHOD(59) {
set_test_name("Upon calling stop(), it transitions to the stopped state");
{
LOCK();
toConsume = -1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
stopChannel();
EVENTUALLY(5,
result = getChannelState() == Channel::STOPPED_WHILE_WAITING;
);
}
static void test_60_stop_start_channel(ServerKit_ChannelTest *self) {
self->channel.stop();
self->channel.start();
{
boost::mutex &syncher = self->syncher;
LOCK();
self->counter++;
self->log.append("Channel state: " + toString(self->channel.getState()) + "\n");
}
}
TEST_METHOD(60) {
set_test_name("Upon calling stop() then start(), it transitions to the 'waiting for callback' state");
{
LOCK();
toConsume = -1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
stopChannel();
EVENTUALLY(5,
result = getChannelState() == Channel::STOPPED_WHILE_WAITING;
);
bg.safe->runLater(boost::bind(test_60_stop_start_channel, this));
EVENTUALLY(5,
LOCK();
result = counter == 2;
);
{
LOCK();
ensure_equals(log,
"Data: abc\n"
"Channel state: " + toString(Channel::WAITING_FOR_CALLBACK) + "\n");
}
}
TEST_METHOD(61) {
set_test_name("Upon calling stop() then start() then feedError(), "
"it transitions to the EOF state immediately");
{
LOCK();
toConsume = -1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
stopChannel();
EVENTUALLY(5,
result = getChannelState() == Channel::STOPPED_WHILE_WAITING;
);
startChannel();
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
feedChannelError(EIO);
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
SHOULD_NEVER_HAPPEN(100,
result = getChannelState() != Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
}
TEST_METHOD(62) {
set_test_name("When consumed() is called with a partial buffer size, "
"it calls the callback again with the remainder of the buffer");
{
LOCK();
toConsume = -1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
{
LOCK();
toConsume = CONSUME_FULLY;
}
channelConsumed(2, false);
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(counter, 2u);
ensure_equals(log,
"Data: abc\n"
"Data: c\n");
}
}
TEST_METHOD(63) {
set_test_name("If stop() was called, and consumed() is called with a partial buffer size, "
"then it doesn't call the callback");
{
LOCK();
toConsume = -1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
stopChannel();
EVENTUALLY(5,
result = getChannelState() == Channel::STOPPED_WHILE_WAITING;
);
{
LOCK();
toConsume = CONSUME_FULLY;
}
channelConsumed(2, false);
SHOULD_NEVER_HAPPEN(100,
LOCK();
result = counter > 1;
);
ensure_equals(getChannelState(), Channel::STOPPED);
}
static void test_64_start_channel(ServerKit_ChannelTest *self) {
self->channel.start();
{
boost::mutex &syncher = self->syncher;
LOCK();
self->counter++;
self->log.append("Channel state: " + toString(self->channel.getState()) + "\n");
}
}
TEST_METHOD(64) {
set_test_name("If stop() was called, and consumed() is called with a partial buffer size, "
"then it calls the callback with the remainder of the data one tick after next time "
"start() is called");
{
LOCK();
toConsume = -1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
stopChannel();
EVENTUALLY(5,
result = getChannelState() == Channel::STOPPED_WHILE_WAITING;
);
{
LOCK();
toConsume = CONSUME_FULLY;
}
channelConsumed(2, false);
bg.safe->runLater(boost::bind(test_64_start_channel, this));
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(counter, 3u);
ensure_equals(log,
"Data: abc\n"
"Channel state: " + toString(Channel::PLANNING_TO_CALL) + "\n"
"Data: c\n");
}
}
TEST_METHOD(65) {
set_test_name("If stop() was called, and consumed() is called with a full buffer size, "
"then it doesn't call the callback");
{
LOCK();
toConsume = -1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
stopChannel();
EVENTUALLY(5,
result = getChannelState() == Channel::STOPPED_WHILE_WAITING;
);
channelConsumed(3, false);
SHOULD_NEVER_HAPPEN(100,
LOCK();
result = counter > 1;
);
ensure_equals(getChannelState(), Channel::STOPPED);
}
static void test_66_start_channel(ServerKit_ChannelTest *self) {
self->channel.start();
{
boost::mutex &syncher = self->syncher;
LOCK();
self->counter++;
self->log.append("Channel state: " + toString(self->channel.getState()) + "\n");
self->log.append("Idle count so far: " + toString(self->idleCount) + "\n");
}
}
TEST_METHOD(66) {
set_test_name("If stop() was called, and consumed() is called with a full buffer size, "
"then when start() is called, it transitions to the idle state and calls the consumption callback");
{
LOCK();
toConsume = -1;
}
feedChannel("abc");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK;
);
stopChannel();
EVENTUALLY(5,
result = getChannelState() == Channel::STOPPED_WHILE_WAITING;
);
channelConsumed(3, false);
bg.safe->runLater(boost::bind(test_66_start_channel, this));
EVENTUALLY(5,
result = getChannelState() == Channel::IDLE;
);
{
LOCK();
ensure_equals(counter, 2u);
ensure_equals(idleCount, 1u);
ensure_equals(log,
"Data: abc\n"
"Channel state: " + toString(Channel::IDLE) + "\n"
"Idle count so far: 1\n");
}
}
/***** Upon being fed EOF *****/
TEST_METHOD(70) {
set_test_name("If the callback does not immediately consume the EOF, "
"the endAck callback is called when consumed() is called");
{
LOCK();
toConsume = -1;
}
feedChannel("");
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK_WITH_EOF_OR_ERROR;
);
{
LOCK();
ensure_equals(endAcked, 0u);
}
channelConsumed(0, false);
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(endAcked, 1u);
}
}
TEST_METHOD(71) {
set_test_name("If the callback immediately consumes the EOF, "
"the endAck callback is called when the data callback returns");
feedChannel("");
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
{
LOCK();
ensure_equals(endAcked, 1u);
}
}
TEST_METHOD(72) {
set_test_name("It no longer accepts further input");
feedChannel("");
ensure(!channelIsAcceptingInput());
ensure(!channelMayAcceptInputLater());
}
/***** Upon being fed an error *****/
TEST_METHOD(75) {
set_test_name("If the callback does not immediately consume the error, "
"the endAck callback is called when consumed() is called");
{
LOCK();
toConsume = -1;
}
feedChannelError(EIO);
EVENTUALLY(5,
result = getChannelState() == Channel::WAITING_FOR_CALLBACK_WITH_EOF_OR_ERROR;
);
{
LOCK();
ensure_equals(endAcked, 0u);
}
channelConsumed(0, false);
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
ensure_equals(getChannelErrcode(), EIO);
{
LOCK();
ensure_equals(endAcked, 1u);
}
}
TEST_METHOD(76) {
set_test_name("If the callback immediately consumes the error, "
"the endAck callback is called when the data callback returns");
feedChannelError(EIO);
EVENTUALLY(5,
result = getChannelState() == Channel::EOF_OR_ERROR_ACKNOWLEDGED;
);
ensure_equals(getChannelErrcode(), EIO);
{
LOCK();
ensure_equals(endAcked, 1u);
}
}
TEST_METHOD(77) {
set_test_name("It no longer accepts further input");
feedChannelError(EIO);
ensure(!channelIsAcceptingInput());
ensure(!channelMayAcceptInputLater());
}
}
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