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tests: drivers: can: test can_get_core_clock() and can_get_max_bitrate()

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Add tests for can_get_core_clock() and can_get_max_bitrate() API
functions.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2022-03-31 21:11:36 +02:00 • committed by Carles Cufí
commit 28d9278358
1 changed files with 37 additions and 2 deletions
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39
tests/drivers/can/api/src/main.c
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@ -579,11 +579,44 @@ static void send_receive(const struct zcan_filter *filter1,
can_remove_rx_filter(can_dev, filter_id_2);
}
/**
* @brief Test getting the CAN core clock rate.
*/
static void test_get_core_clock(void)
{
uint32_t rate;
int err;
err = can_get_core_clock(can_dev, &rate);
zassert_equal(err, 0, "failed to get CAN core clock rate (err %d)", err);
zassert_not_equal(rate, 0, "CAN core clock rate is 0");
}
/**
* @brief Test setting a too high bitrate.
*/
static void test_set_bitrate_too_high(void)
{
uint32_t max;
int err;
err = can_get_max_bitrate(can_dev, &max);
if (err == -ENOSYS) {
ztest_test_skip();
}
zassert_equal(err, 0, "failed to get max bitrate (err %d)", err);
zassert_not_equal(max, 0, "max bitrate is 0");
err = can_set_bitrate(can_dev, max + 1, max + 1);
zassert_equal(err, -ENOTSUP, "too high bitrate accepted");
}
/**
* @brief Test configuring the CAN controller for loopback mode.
*
* This must be the first test case as it allows the other test cases to
* send/receive their own frames.
* This test case must be run before sending/receiving test cases as it allows
* these test cases to send/receive their own frames.
*/
static void test_set_loopback(void)
{
@ -815,6 +848,8 @@ void test_main(void)
/* Tests without callbacks can run in userspace */
ztest_test_suite(can_api_tests,
ztest_user_unit_test(test_get_core_clock),
ztest_user_unit_test(test_set_bitrate_too_high),
ztest_unit_test(test_set_loopback),
ztest_user_unit_test(test_send_and_forget),
ztest_unit_test(test_add_filter),