#include "ByteBuffer.h"

#define BOOST_TEST_MODULE "ByteBuffer"

#include <boost/test/unit_test.hpp>

class Utils {
public:
    uint8_t bytes[1000];

    Utils() {
        for (int i = 0; i < sizeof(bytes); i++) {
            bytes[i] = (uint8_t) i;
        }
    }
};

void checkBuffer(ByteBuffer& buffer, size_t size, size_t capacity, size_t cursor) {
    BOOST_CHECK(buffer.getSize() == size);
    BOOST_CHECK(buffer.getCapacity() == capacity);
    BOOST_CHECK(buffer.getCursor() == cursor);
}

BOOST_AUTO_TEST_CASE(empty_buffer) {
    Utils u;
    ByteBuffer buffer(u.bytes, sizeof(u.bytes), 0, 0);

    checkBuffer(buffer, 0, 1000, 0);

    try {
        buffer.get8();
        BOOST_FAIL("Expected exception");
    } catch (ByteBufferException e) {
    }
}

BOOST_AUTO_TEST_CASE(basic) {
    Utils u;
    ByteBuffer buffer(u.bytes, sizeof(u.bytes), 10, 0);
    checkBuffer(buffer, 10, 1000, 0);

    buffer.get8();
    checkBuffer(buffer, 10, 1000, 1);
}

BOOST_AUTO_TEST_CASE(view) {
    Utils u;
    ByteBuffer buffer(u.bytes, sizeof(u.bytes), 10, 0);
    checkBuffer(buffer, 10, 1000, 0);

    buffer.get8();
    checkBuffer(buffer, 10, 1000, 1);
}