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tests: net: ppp: Add unit tests for PPP driver

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Make sure that we are able to parse incoming PPP data
correctly.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2019-03-29 12:56:31 +02:00
commit d09248219d
5 changed files with 638 additions and 0 deletions
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39
drivers/net/ppp.c
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@ -367,6 +367,41 @@ static u8_t *ppp_recv_cb(u8_t *buf, size_t *off)
return buf;
}
#if defined(CONFIG_NET_TEST)
void ppp_driver_feed_data(u8_t *data, int data_len)
{
struct ppp_driver_context *ppp = &ppp_driver_context_data;
size_t recv_off = 0;
/* We are expecting that the tests are feeding data in large
* chunks so we can reset the uart buffer here.
*/
memset(ppp->buf, 0, UART_BUF_LEN);
ppp_change_state(ppp, STATE_HDLC_FRAME_START);
while (data_len > 0) {
int data_to_copy = MIN(data_len, UART_BUF_LEN);
int remaining;
LOG_DBG("Feeding %d bytes", data_to_copy);
memcpy(ppp->buf, data, data_to_copy);
recv_off = data_to_copy;
(void)ppp_recv_cb(ppp->buf, &recv_off);
remaining = data_to_copy - recv_off;
LOG_DBG("We copied %d bytes", remaining);
data_len -= remaining;
data += remaining;
}
}
#endif
static bool calc_fcs(struct net_pkt *pkt, u16_t *fcs, u16_t protocol)
{
struct net_buf *buf;
@ -446,6 +481,10 @@ static int ppp_send(struct device *dev, struct net_pkt *pkt)
u8_t byte;
int i, offset;
#if defined(CONFIG_NET_TEST)
return 0;
#endif
ARG_UNUSED(dev);
if (!buf) {