/**
* @brief Adds byte to ring buffer.
* @param data ^^ byte
* Does not block. Ring buffer shold not be full.
*/
void RingBuffer_add(struct RingBuffer *self, uint8_t data)
{
assert(!RingBuffer_full(self));
self->buff[self->start++] = data;
self->start %= BUFF_SIZE;
self->empty = false;
}
char *test_read_write()
{
RingBuffer_puts(rbuf, &test_data_0);
mu_assert(rbuf->end == 6, "ends at not reset correctly");
mu_assert(RingBuffer_empty(rbuf) == 0, "not actually empty");
RingBuffer_puts(rbuf, &test_data_1);
mu_assert(rbuf->end == 34, "ends at not reset correctly");
char *data_1 = malloc(sizeof(char) * 6);
RingBuffer_read(rbuf, data_1, 6);
mu_assert(bstrcmp(bfromcstr(data_1), &test_data_0) == 0,
"read did not return proper string"
);
mu_assert(rbuf->start == 6, "did not reset start correctly");
char *data_2 = malloc(sizeof(char) * 28);
RingBuffer_read(rbuf, data_2, 28);
mu_assert(bstrcmp(bfromcstr(data_2), &test_data_1) == 0,
"read did not return proper string"
);
mu_assert(rbuf->start == 0, "did not reset start correctly");
mu_assert(rbuf->end == 0, "did not reset end correctly");
RingBuffer_puts(rbuf, &test_data_2);
RingBuffer_puts(rbuf, &test_data_3);
mu_assert(rbuf->start == 0, "start not maintained");
mu_assert(rbuf->end == 64, "end not set correctly");
mu_assert(RingBuffer_full(rbuf) == 1, "RingBuffer actually full");
mu_assert(RingBuffer_available_space(rbuf) == 0, "RingBuffer has no space");
mu_assert(RingBuffer_available_data(rbuf) == 64, "RingBuffer has wrong available data");
bstring data_3 = RingBuffer_get_all(rbuf);
bstring expected = bformat("%s%s", bdata(&test_data_2), bdata(&test_data_3));
mu_assert(bstrcmp(data_3, expected) == 0, "data not returned correctly");
mu_assert(RingBuffer_empty(rbuf) == 1, "RingBuffer should be empty");
return NULL;
}
