azkoyen_technical_test/tests/test_consumer.cxx

121 lines
2.8 KiB
C++

#include <gtest/gtest.h>
#include <QCoreApplication>
#include <QSignalSpy>
#include "Consumer.hpp"
#include "UnixIpcBridge.hpp"
// QSignalSpy needs a QCoreApplication to dispatch queued signals
static int argc_ = 0;
static QCoreApplication app_(argc_, nullptr);
TEST(ConsumerThreadTest, ReceivesSingleValue)
{
const std::string sock = "/tmp/test_ct_single.sock";
ConsumerThread consumer(sock);
// QSignalSpy records every emission of the given signal
QSignalSpy spy(&consumer, &ConsumerThread::valueReceived);
consumer.start();
UnixIpcBridge bridge(sock);
bridge.send(42);
// spy.wait() pumps the event loop for up to 1s until a signal arrives
spy.wait(1000);
consumer.stop();
ASSERT_EQ(spy.count(), 1);
EXPECT_EQ(spy.at(0).at(0).toInt(), 42);
}
TEST(ConsumerThreadTest, ReceivesMultipleValues)
{
const std::string sock = "/tmp/test_ct_multi.sock";
ConsumerThread consumer(sock);
QSignalSpy spy(&consumer, &ConsumerThread::valueReceived);
consumer.start();
constexpr int kMessages = 5;
for (int i = 0; i < kMessages; ++i)
{
UnixIpcBridge bridge(sock);
bridge.send(i * 10);
// Small delay so the consumer can re-enter accept() between sends
std::this_thread::sleep_for(std::chrono::milliseconds(10));
}
// Wait until all signals arrive (or timeout after 5s)
for (int attempt = 0; spy.count() < kMessages && attempt < 50; ++attempt)
{
spy.wait(100);
}
consumer.stop();
ASSERT_EQ(spy.count(), kMessages);
for (int i = 0; i < kMessages; ++i)
{
EXPECT_EQ(spy.at(i).at(0).toInt(), i * 10);
}
}
TEST(ConsumerThreadTest, ReceivesNegativeAndZero)
{
// Zero
{
const std::string sock = "/tmp/test_ct_zero.sock";
ConsumerThread consumer(sock);
QSignalSpy spy(&consumer, &ConsumerThread::valueReceived);
consumer.start();
UnixIpcBridge bridge(sock);
bridge.send(0);
spy.wait(1000);
consumer.stop();
ASSERT_EQ(spy.count(), 1);
EXPECT_EQ(spy.at(0).at(0).toInt(), 0);
}
// Negative
{
const std::string sock = "/tmp/test_ct_neg.sock";
ConsumerThread consumer(sock);
QSignalSpy spy(&consumer, &ConsumerThread::valueReceived);
consumer.start();
UnixIpcBridge bridge(sock);
bridge.send(-999);
spy.wait(1000);
consumer.stop();
ASSERT_EQ(spy.count(), 1);
EXPECT_EQ(spy.at(0).at(0).toInt(), -999);
}
}
TEST(ConsumerThreadTest, StopsCleanlyWithoutDeadlock)
{
const std::string sock = "/tmp/test_ct_stop.sock";
ConsumerThread consumer(sock);
consumer.start();
// stop() must return without hanging, even with no connections
consumer.stop();
}
TEST(ConsumerThreadTest, StopsCleanlyWhenNeverStarted)
{
const std::string sock = "/tmp/test_ct_nostart.sock";
ConsumerThread consumer(sock);
// stop() on a consumer that was never started must not crash
consumer.stop();
}