Function test_reset

src/test/test_databuffer_mm.cpp:123–184

}

int test_reset()
{
	std::cout << "\n*** Test reset ***\n";

	const int size_buffer = 20;

	DataBuffer::init(size_buffer);

	const int size_write = 3;
	const int size_read  = size_write;

	const int b = 1;
	const int e = size_write + 1;
	std::string data = create_range(b, e);

	// test writing and reading data:
	{
		std::vector<uint8_t> bytes(size_read, to_char(99));

		const uint32_t Nw = DataBuffer::write(data);

#if 0
		if ( Nw != DataBuffer::size() )
		{
			std::cout << "*** Test reset: expecting '" << Nw << "' items in buffer, got '" << DataBuffer::size() << "'\n";
			return EXIT_FAILURE;
		}
#endif
		const uint32_t Nr = DataBuffer::read(size_read, bytes.data());

		if ( Nr != Nw || create_data(bytes) != data)
		{
			std::cout << "*** Test reset: expected to read '" << size_read << "', got '" << Nr << "'\n";
			return EXIT_FAILURE;
		}
	}

	// test reading data after reset:
	{
		std::vector<uint8_t> bytes(size_read, to_char(99));

		const uint32_t Nw = DataBuffer::write(data);

		// clear buffer, keep allocated memory:
		std::cout << "*** Test reset: Reset buffer\n";
		DataBuffer::reset();

		const uint32_t Nr = DataBuffer::read(size_read, bytes.data());

		if ( Nr != 0 || bytes[0] != to_char(99))
		{
			std::cout << "*** Test reset: Failed with Nr is '" << Nr << "', bytes[0] is '" << to_int(bytes[0]) << "', expected Nr of 0.\n";
			print("*** ", data, "\n");
			print("*** ", bytes, "\n");
			return EXIT_FAILURE;
		}
	}