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EscapingSource_test.cpp
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/*
* EscapingSource_test.cpp
*
* Created on: Sep 22, 2015
* Author: peter
*/
#include <boost/test/unit_test.hpp>
#include "EscapingSource.h"
#include "RingBufferReader.h"
namespace hdlc {
BOOST_AUTO_TEST_CASE( test_EscapingSource_is_born_unready ) {
RingBuffer<64> medium;
RingBufferReader source = RingBufferReader(medium);
EscapingSource escapingSource = EscapingSource(source);
BOOST_CHECK(!escapingSource.isReady());
}
BOOST_AUTO_TEST_CASE( test_EscapingSource_becomes_ready_after_receiving ) {
RingBuffer<64> medium;
RingBufferReader source = RingBufferReader(medium);
EscapingSource escapingSource = EscapingSource(source);
medium.put(0x42);
escapingSource.schedule();
BOOST_CHECK(escapingSource.isReady());
}
BOOST_AUTO_TEST_CASE( test_EscapingSource_becomes_unready_after_next ) {
RingBuffer<64> medium;
RingBufferReader source = RingBufferReader(medium);
EscapingSource escapingSource = EscapingSource(source);
medium.put(0x42);
escapingSource.schedule();
escapingSource.next();
BOOST_CHECK(!escapingSource.isReady());
}
BOOST_AUTO_TEST_CASE( test_EscapingSource_receives_octet_correctly ) {
RingBuffer<64> medium;
RingBufferReader source = RingBufferReader(medium);
EscapingSource escapingSource = EscapingSource(source);
medium.put(0x42);
escapingSource.schedule();
BOOST_CHECK(!escapingSource.isFlag());
BOOST_CHECK(0x42 == escapingSource.read());
}
BOOST_AUTO_TEST_CASE( test_EscapingSource_receives_escaped_octet_correctly ) {
RingBuffer<64> medium;
RingBufferReader source = RingBufferReader(medium);
EscapingSource escapingSource = EscapingSource(source);
medium.put(EscapingSource::ESCAPE);
medium.put(EscapingSource::FLAG ^ EscapingSource::MASK);
medium.put(EscapingSource::ESCAPE);
medium.put(EscapingSource::ESCAPE ^ EscapingSource::MASK);
escapingSource.schedule();
escapingSource.schedule();
BOOST_CHECK(!escapingSource.isFlag());
BOOST_CHECK(EscapingSource::FLAG == escapingSource.read());
escapingSource.next();
escapingSource.schedule();
escapingSource.schedule();
BOOST_CHECK(!escapingSource.isFlag());
BOOST_CHECK(EscapingSource::ESCAPE == escapingSource.read());
}
BOOST_AUTO_TEST_CASE( test_EscapingSource_receives_flag_octet_correctly ) {
RingBuffer<64> medium;
RingBufferReader source = RingBufferReader(medium);
EscapingSource escapingSource = EscapingSource(source);
medium.put(EscapingSource::FLAG);
escapingSource.schedule();
BOOST_CHECK(escapingSource.isFlag());
}
BOOST_AUTO_TEST_CASE( test_EscapingSource_receives_regular_octet_correctly_after_receiving_flag ) {
RingBuffer<64> medium;
RingBufferReader source = RingBufferReader(medium);
EscapingSource escapingSource = EscapingSource(source);
medium.put(EscapingSource::FLAG);
medium.put(0x42);
escapingSource.schedule();
BOOST_CHECK(escapingSource.isFlag());
escapingSource.read();
escapingSource.next();
escapingSource.schedule();
BOOST_CHECK(!escapingSource.isFlag());
BOOST_CHECK(0x42 == escapingSource.read());
}
} /* namespace hdlc */