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tests: drivers: can: utilities: add tests for DLC utility functions

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Add tests for can_dlc_to_bytes() and can_bytes_to_dlc() utility
functions.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2022-03-29 10:46:24 +02:00 • committed by Carles Cufí
commit 7a042377f4
1 changed files with 48 additions and 2 deletions
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50
tests/drivers/can/utilities/src/main.c
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@ -1,4 +1,5 @@
/* /*
* Copyright (c) 2022 Vestas Wind Systems A/S
* Copyright (c) 2019 Intel Corporation * Copyright (c) 2019 Intel Corporation
* *
* SPDX-License-Identifier: Apache-2.0 * SPDX-License-Identifier: Apache-2.0
@ -148,13 +149,58 @@ static void test_zcan_filter_to_can_filter(void)
zassert_equal(filter.can_mask, expected.can_mask, "CAN mask not same"); zassert_equal(filter.can_mask, expected.can_mask, "CAN mask not same");
} }
/**
* @brief Test of @a can_dlc_to_bytes()
*/
static void test_can_dlc_to_bytes(void)
{
uint8_t dlc;
/* CAN 2.0B/CAN-FD DLC, 0 to 8 data bytes */
for (dlc = 0; dlc <= 8; dlc++) {
zassert_equal(can_dlc_to_bytes(dlc), dlc, "wrong number of bytes for DLC %u", dlc);
}
/* CAN-FD DLC, 12 to 64 data bytes in steps */
zassert_equal(can_dlc_to_bytes(9), 12, "wrong number of bytes for DLC 9");
zassert_equal(can_dlc_to_bytes(10), 16, "wrong number of bytes for DLC 10");
zassert_equal(can_dlc_to_bytes(11), 20, "wrong number of bytes for DLC 11");
zassert_equal(can_dlc_to_bytes(12), 24, "wrong number of bytes for DLC 12");
zassert_equal(can_dlc_to_bytes(13), 32, "wrong number of bytes for DLC 13");
zassert_equal(can_dlc_to_bytes(14), 48, "wrong number of bytes for DLC 14");
zassert_equal(can_dlc_to_bytes(15), 64, "wrong number of bytes for DLC 15");
}
/**
* @brief Test of @a can_bytes_to_dlc()
*/
static void test_can_bytes_to_dlc(void)
{
uint8_t bytes;
/* CAN 2.0B DLC, 0 to 8 data bytes */
for (bytes = 0; bytes <= 8; bytes++) {
zassert_equal(can_bytes_to_dlc(bytes), bytes, "wrong DLC for %u byte(s)", bytes);
}
/* CAN-FD DLC, 12 to 64 data bytes in steps */
zassert_equal(can_bytes_to_dlc(12), 9, "wrong DLC for 12 bytes");
zassert_equal(can_bytes_to_dlc(16), 10, "wrong DLC for 16 bytes");
zassert_equal(can_bytes_to_dlc(20), 11, "wrong DLC for 20 bytes");
zassert_equal(can_bytes_to_dlc(24), 12, "wrong DLC for 24 bytes");
zassert_equal(can_bytes_to_dlc(32), 13, "wrong DLC for 32 bytes");
zassert_equal(can_bytes_to_dlc(48), 14, "wrong DLC for 48 bytes");
zassert_equal(can_bytes_to_dlc(64), 15, "wrong DLC for 64 bytes");
}
void test_main(void) void test_main(void)
{ {
ztest_test_suite(can_utilities_tests, ztest_test_suite(can_utilities_tests,
ztest_unit_test(test_can_frame_to_zcan_frame), ztest_unit_test(test_can_frame_to_zcan_frame),
ztest_unit_test(test_zcan_frame_to_can_frame), ztest_unit_test(test_zcan_frame_to_can_frame),
ztest_unit_test(test_can_filter_to_zcan_filter), ztest_unit_test(test_can_filter_to_zcan_filter),
ztest_unit_test(test_zcan_filter_to_can_filter)); ztest_unit_test(test_zcan_filter_to_can_filter),
ztest_unit_test(test_can_dlc_to_bytes),
ztest_unit_test(test_can_bytes_to_dlc));
ztest_run_test_suite(can_utilities_tests); ztest_run_test_suite(can_utilities_tests);
} }