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tests: coap_client: Add testcase for Ack failure

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Add testcase where sending Ack to incomming Confirmable message fails.
This should be reported to application as now the server is unaware
that transmission have succeeded, so we cannot thread it as success.

Signed-off-by: Seppo Takalo <seppo.takalo@nordicsemi.no>
This commit is contained in:
Seppo Takalo 2024-11-12 13:38:11 +02:00 • committed by Anas Nashif
commit fc51fa491f
1 changed files with 35 additions and 0 deletions
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35
tests/net/lib/coap_client/src/main.c
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@ -747,6 +747,41 @@ ZTEST(coap_client, test_separate_response_lost)
zassert_equal(last_response_code, -ETIMEDOUT, "");
}
ZTEST(coap_client, test_separate_response_ack_fail)
{
int ret = 0;
struct k_sem sem;
struct sockaddr address = {0};
struct coap_client_request client_request = {
.method = COAP_METHOD_GET,
.confirmable = true,
.path = test_path,
.fmt = COAP_CONTENT_FORMAT_TEXT_PLAIN,
.cb = coap_callback,
.payload = short_payload,
.len = strlen(short_payload),
.user_data = &sem,
};
zassert_ok(k_sem_init(&sem, 0, 1));
int (*sendto_fakes[])(int, void *, size_t, int, const struct sockaddr *, socklen_t) = {
z_impl_zsock_sendto_custom_fake,
z_impl_zsock_sendto_custom_fake_err,
};
SET_CUSTOM_FAKE_SEQ(z_impl_zsock_sendto, sendto_fakes, ARRAY_SIZE(sendto_fakes));
z_impl_zsock_recvfrom_fake.custom_fake = z_impl_zsock_recvfrom_custom_fake_empty_ack;
k_sleep(K_MSEC(1));
LOG_INF("Send request");
ret = coap_client_req(&client, 0, &address, &client_request, NULL);
zassert_true(ret >= 0, "Sending request failed, %d", ret);
zassert_ok(k_sem_take(&sem, K_MSEC(COAP_SEPARATE_TIMEOUT)));
zassert_equal(last_response_code, -ENETDOWN, "");
}
ZTEST(coap_client, test_multiple_requests)
{
int ret = 0;