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tests: drivers: can: api: test can_get_max_filters()

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Add test for can_get_max_filters() optional API function.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2022-04-08 12:58:23 +02:00 • committed by Carles Cufí
commit 423ae67d5c
1 changed files with 65 additions and 0 deletions
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65
tests/drivers/can/api/src/main.c
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@ -703,6 +703,69 @@ static void test_add_filter(void)
can_remove_rx_filter(can_dev, filter_id);
}
/**
* @brief Test adding up to and above the maximum number of RX filters.
*
* @param id_type CAN frame identifier type
* @param id_mask filter
*/
static void add_remove_max_filters(enum can_ide id_type)
{
uint32_t id_mask = id_type == CAN_STANDARD_IDENTIFIER ? CAN_STD_ID_MASK : CAN_EXT_ID_MASK;
struct zcan_filter filter = {
.id_type = id_type,
.rtr = CAN_DATAFRAME,
.id = 0,
.rtr_mask = 1,
.id_mask = id_mask,
};
int filter_id;
int max;
int i;
max = can_get_max_filters(can_dev, id_type);
if (max == -ENOSYS || max == 0) {
/*
* Skip test if max is not known or no filters of the given type
* is supported.
*/
ztest_test_skip();
}
zassert_true(max > 0, "failed to get max filters (err %d)", max);
int filter_ids[max];
for (i = 0; i < max; i++) {
filter.id++;
filter_ids[i] = add_rx_msgq(can_dev, &filter);
}
filter.id++;
filter_id = can_add_rx_filter_msgq(can_dev, &can_msgq, &filter);
zassert_equal(filter_id, -ENOSPC, "added more than max filters");
for (i = 0; i < max; i++) {
can_remove_rx_filter(can_dev, filter_ids[i]);
}
}
/**
* @brief Test max standard (11-bit) CAN RX filters.
*/
static void test_max_std_filters(void)
{
add_remove_max_filters(CAN_STANDARD_IDENTIFIER);
}
/**
* @brief Test max extended (29-bit) CAN RX filters.
*/
static void test_max_ext_filters(void)
{
add_remove_max_filters(CAN_EXTENDED_IDENTIFIER);
}
/**
* @brief Test that no message is received when nothing was sent.
*/
@ -923,6 +986,8 @@ void test_main(void)
ztest_user_unit_test(test_set_loopback),
ztest_user_unit_test(test_send_and_forget),
ztest_unit_test(test_add_filter),
ztest_user_unit_test(test_max_std_filters),
ztest_user_unit_test(test_max_ext_filters),
ztest_user_unit_test(test_receive_timeout),
ztest_unit_test(test_send_callback),
ztest_unit_test(test_send_receive_std_id),