Device: Add com keepalive

test/unit/periodictest.cpp

@@ -0,0 +1,62 @@
+#include "icsneo/api/periodic.h"
+#include "gtest/gtest.h"
+
+#include <condition_variable>
+
+using namespace icsneo;
+
+// no wait, make sure stop works
+TEST(PeriodicTest, StartStop)
+{
+	const auto start = std::chrono::steady_clock::now();
+	Periodic p([] { return true; }, std::chrono::milliseconds(1000));
+	const auto delta = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::steady_clock::now() - start);
+	EXPECT_LT(delta.count(), 100); // hopefully enough
+}
+
+// time single cycle
+TEST(PeriodicTest, OneCycle)
+{
+	std::condition_variable cv;
+	std::mutex mutex;
+	uint8_t cycles = 0;
+	const auto start = std::chrono::steady_clock::now();
+	{
+		Periodic p([&] {
+			{
+				std::scoped_lock lk(mutex);
+				++cycles;
+			}
+			cv.notify_one();
+			return true;
+		}, std::chrono::seconds(1));
+		std::unique_lock<std::mutex> lk(mutex);
+		cv.wait_for(lk, std::chrono::seconds(2), [&]{ return cycles > 0; });
+	}
+	const auto delta = std::chrono::duration_cast<std::chrono::seconds>(std::chrono::steady_clock::now() - start);
+	EXPECT_EQ(delta.count(), 1);
+	EXPECT_EQ(cycles, 1);
+}
+
+TEST(PeriodicTest, TenCycles)
+{
+	std::condition_variable cv;
+	std::mutex mutex;
+	uint8_t cycles = 0;
+	const auto start = std::chrono::steady_clock::now();
+	{
+		Periodic p([&] {
+			{
+				std::scoped_lock lk(mutex);
+				++cycles;
+			}
+			cv.notify_one();
+			return true;
+		}, std::chrono::milliseconds(100));
+		std::unique_lock<std::mutex> lk(mutex);
+		cv.wait_for(lk, std::chrono::seconds(2), [&]{ return cycles >= 10; });
+	}
+	const auto delta = std::chrono::duration_cast<std::chrono::seconds>(std::chrono::steady_clock::now() - start);
+	EXPECT_EQ(delta.count(), 1);
+	EXPECT_EQ(cycles, 10);
+}