test/libtest/test.h


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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2018, Google Inc.
 *
 * test.h - libcamera test base class
 */
#ifndef __TEST_TEST_H__
#define __TEST_TEST_H__

#include <sstream>

enum TestStatus {
	TestPass = 0,
	TestFail = -1,
	TestSkip = 77,
};

class Test
{
public:
	Test();
	virtual ~Test();

	int execute();

protected:
	virtual int init() { return 0; }
	virtual int run() = 0;
	virtual void cleanup() {}
};

#define TEST_REGISTER(klass)						\
int main(int argc, char *argv[])					\
{									\
	return klass().execute();					\
}

#endif /* __TEST_TEST_H__ */
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * event.cpp - Event test
 */

#include <iostream>
#include <string.h>
#include <unistd.h>

#include <libcamera/event_dispatcher.h>
#include <libcamera/event_notifier.h>
#include <libcamera/timer.h>

#include "test.h"
#include "thread.h"

using namespace std;
using namespace libcamera;

class EventTest : public Test
{
protected:
	void readReady(EventNotifier *notifier)
	{
		size_ = read(notifier->fd(), data_, sizeof(data_));
		notified_ = true;
	}

	int init()
	{
		return pipe(pipefd_);
	}

	int run()
	{
		EventDispatcher *dispatcher = Thread::current()->eventDispatcher();
		std::string data("H2G2");
		Timer timeout;
		ssize_t ret;

		EventNotifier readNotifier(pipefd_[0], EventNotifier::Read);
		readNotifier.activated.connect(this, &EventTest::readReady);

		/* Test read notification with data. */
		memset(data_, 0, sizeof(data_));
		size_ = 0;

		ret = write(pipefd_[1], data.data(), data.size());
		if (ret < 0) {
			cout << "Pipe write failed" << endl;
			return TestFail;
		}

		timeout.start(100);
		dispatcher->processEvents();
		timeout.stop();

		if (static_cast<size_t>(size_) != data.size()) {
			cout << "Event notifier read ready test failed" << endl;
			return TestFail;
		}

		/* Test read notification without data. */
		notified_ = false;

		timeout.start(100);
		dispatcher->processEvents();
		timeout.stop();

		if (notified_) {
			cout << "Event notifier read no ready test failed" << endl;
			return TestFail;
		}

		/* Test read notifier disabling. */
		notified_ = false;
		readNotifier.setEnabled(false);

		ret = write(pipefd_[1], data.data(), data.size());
		if (ret < 0) {
			cout << "Pipe write failed" << endl;
			return TestFail;
		}

		timeout.start(100);
		dispatcher->processEvents();
		timeout.stop();

		if (notified_) {
			cout << "Event notifier read disabling failed" << endl;
			return TestFail;
		}

		/* Test read notifier enabling. */
		notified_ = false;
		readNotifier.setEnabled(true);

		timeout.start(100);
		dispatcher->processEvents();
		timeout.stop();

		if (!notified_) {
			cout << "Event notifier read enabling test failed" << endl;
			return TestFail;
		}

		return TestPass;
	}

	void cleanup()
	{
		close(pipefd_[0]);
		close(pipefd_[1]);
	}

private:
	int pipefd_[2];

	bool notified_;
	char data_[16];
	ssize_t size_;
};

TEST_REGISTER(EventTest)