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#include <iostream>
#include <list>
#include <iomanip>
#include <boost/test/unit_test.hpp>
#include <boost/thread/thread.hpp>
#include <unistd.h>
using namespace std;
using namespace boost::unit_test_framework;
#define BIT_AT
#include "pic14.h"
byte OERR, CREN, RCIF = 0, TXIF = 0;
#define deviceAddress 1
void serialInterruptHandler();
class receive {
public:
receive()
{
}
operator byte()
{
if (m_queue.size() == 0) {
cerr << "Receive underflow" << endl;
return 0;
}
byte c = m_queue.front();
m_queue.pop_front();
cout << "< " << setw(2) << setfill('0') << hex << (int)c << endl;
if (m_queue.size() == 0)
RCIF = 0;
return c;
}
void queue(byte c)
{
m_queue.push_back(c);
RCIF = 1;
}
private:
std::list<byte> m_queue;
};
class send
{
public:
send()
{
m_enabled = false;
}
byte operator=(const byte &b)
{
m_queue.push_back(b);
cout << "> " << setw(2) << setfill('0') << hex << (int)b << endl;
TXIF = 1;
return b;
}
void enable(bool b)
{
if (!m_enabled && b) {
// enabling
TXIF = 1;
}
m_enabled = b;
}
bool enabled()
{
return m_enabled;
}
void processTransmits()
{
for(;;) {
if (m_enabled && TXIF) {
serialInterruptHandler();
}
usleep(1000);
}
}
bool expect(byte v, int maxwait)
{
while(m_queue.size() == 0) {
}
byte c = m_queue.front();
m_queue.pop_front();
return c == v;
}
private:
bool m_enabled;
std::list<byte> m_queue;
};
class sendEnable
{
public:
sendEnable(send *sender)
{
m_sender = sender;
}
byte operator=(const byte &b)
{
m_sender->enable(b);
return b;
}
operator byte()
{
return m_sender->enabled();
}
private:
send *m_sender;
};
receive RCREG;
send TXREG;
sendEnable TXIE(&TXREG);
#include "serial-inc.c"
#include "serial-inc2.c"
bool waitForLock()
{
for(;;) {
serialInterruptHandler();
if (processingLock)
break;
usleep(1000);
}
return true;
}
void rxbytes(string bytes)
{
// not very robust :)
int idx = 0;
while(idx < bytes.length()) {
int newidx = bytes.find(' ', idx + 1);
if (newidx == string::npos) newidx = bytes.length();
const char *p = bytes.substr(idx, newidx - idx).c_str();
RCREG.queue(strtol(p, NULL, 16));
idx = newidx + 1;
}
}
void expectbytes(string bytes)
{
// not very robust :)
int idx = 0;
while(idx < bytes.length()) {
int newidx = bytes.find(' ', idx + 1);
if (newidx == string::npos) newidx = bytes.length();
const char *p = bytes.substr(idx, newidx - idx).c_str();
BOOST_CHECK(TXREG.expect(strtol(p, NULL, 16), 1));
idx = newidx + 1;
}
}
void simple_test()
{
cout << "simple_test" << endl;
rxbytes("54 51 31 01 00 00 34");
waitForLock();
expectbytes("54 52 30 00 01 5f");
releaseLock();
}
void send_test()
{
cout << "send_test" << endl;
rxbytes("54 51 31 01 00 00 34");
waitForLock();
expectbytes("54 52 30 00 01 5f"); // The ack
sendReply();
sendDataByte('t');
sendDataByte('e');
sendDataByte('s');
sendDataByte('t');
endMessage();
expectbytes("54 51 34 00 01 74 65 73 74 3f"); // The real reply
releaseLock();
}
void passon_test()
{
// This tests what happens when bytes are received for another
// node (they should be forwarded on)
cout << "passon_test" << endl;
rxbytes("54 51 31 02 00 00 30");
waitForLock();
expectbytes("54 52 30 00 01 00");
releaseLock();
}
void noresponse_test()
{
// This tests what happens when a packet is received sent
// from a nodes own address. It should be treated as a NAK
// and resent.
cout << "noresponse_test" << endl;
rxbytes("54 51 31 02 01 30");
expectbytes("54 52 30 00 01 00");
}
void txthread()
{
TXREG.processTransmits();
}
test_suite *init_unit_test_suite(int argc, char *argv[])
{
boost::thread thrd(&txthread);
test_suite *logic = BOOST_TEST_SUITE("Communication tests");
logic->add(BOOST_TEST_CASE(&simple_test));
logic->add(BOOST_TEST_CASE(&send_test));
logic->add(BOOST_TEST_CASE(&passon_test));
logic->add(BOOST_TEST_CASE(&noresponse_test));
return logic;
}
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