X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=tests%2Fbitfield_tests.c;h=b03882a2645b517a57399aad7c527e4a5508f2e0;hb=8ae1d522ae3074ef2de40c90650d7a15f0023cc2;hp=f321e5f2b27fa59c95d643a79ae7145f63df37ff;hpb=0b00bb6c3c5df70317775efd12b6fff418ff4540;p=apps%2Fagl-service-can-low-level.git diff --git a/tests/bitfield_tests.c b/tests/bitfield_tests.c index f321e5f2..b03882a2 100644 --- a/tests/bitfield_tests.c +++ b/tests/bitfield_tests.c @@ -2,223 +2,71 @@ #include #include -START_TEST (test_large_bitmask) -{ - // yeah, this isn't a public method but I wanted to unit test it to track - // down a bug - extern uint64_t bitmask(int numBits); - uint64_t result = bitmask(32); - fail_if(result != 0xffffffff); -} -END_TEST - -START_TEST (test_one_bit_not_swapped) -{ - uint64_t data = 0x80; - uint64_t result = getBitField(data, 0, 1, false); - fail_if(result == 1); -} -END_TEST - -START_TEST (test_one_bit) -{ - uint64_t data = 0x8000000000000000; - uint64_t result = getBitField(data, 0, 1, false); - fail_unless(result == 0x1, - "First bits in 0x%X was 0x%X instead of 0x1", data, result); -} -END_TEST - -START_TEST (test_32_bit_parse) -{ - uint64_t data = 0x0402574d555a0401; - uint64_t result = getBitField(data, 16, 32, false); - uint64_t expectedValue = 0x574d555a; - fail_unless(result == expectedValue, - "Field retrieved in 0x%X was 0x%X instead of %d", data, - result, expectedValue); -} -END_TEST - -START_TEST (test_16_bit_parse) -{ - uint64_t data = 0xF34DFCFF00000000; - uint64_t result = getBitField(data, 16, 16, false); - uint64_t expectedValue = 0xFCFF; - fail_unless(result == expectedValue, - "Field retrieved in 0x%X was 0x%X instead of %d", data, - result, expectedValue); -} -END_TEST - -START_TEST (test_one_byte) -{ - uint64_t data = 0xFA00000000000000; - uint64_t result = getBitField(data, 0, 4, false); - fail_unless(result == 0xF, - "First 4 bits in 0x%X was 0x%X instead of 0xF", data, result); - result = getBitField(data, 4, 4, false); - fail_unless(result == 0xA, - "First 4 bits in 0x%X was 0x%X instead of 0xA", data, result); - result = getBitField(data, 0, 8, false); - fail_unless(result == 0xFA, - "All bits in 0x%X were 0x%X instead of 0x%X", data, result, data); -} -END_TEST - -START_TEST (test_multi_byte) +START_TEST (test_get_byte) { - uint64_t data = 0x12FA000000000000; - uint64_t result = getBitField(data, 0, 4, false); - fail_unless(result == 0x1, - "First 4 bits in 0x%X was 0x%X instead of 0xF", (data >> 60) & 0xF, - result); - result = getBitField(data, 4, 4, false); - fail_unless(result == 0x2, - "Second 4 bits in 0x%X was %d instead of 0xA", (data >> 56) & 0xF, - result); - result = getBitField(data, 8, 4, false); - fail_unless(result == 0xF, - "First 4 bits in 0x%X was %d instead of 0x1", (data >> 52) & 0xF, - result); - result = getBitField(data, 12, 4, false); - fail_unless(result == 0xA, - "Second 4 bits in 0x%X was %d instead of 0x2", (data >> 48) % 0xF, - result); + uint8_t data[4] = {0x12, 0x34, 0x56, 0x78}; + uint8_t result = get_byte(data, sizeof(data), 0); + ck_assert_int_eq(result, 0x12); + result = get_byte(data, sizeof(data), 3); + ck_assert_int_eq(result, 0x78); } END_TEST -START_TEST (test_get_multi_byte) +START_TEST (test_set_nibble) { - uint64_t data = 0x12FA000000000000; - uint64_t result = getBitField(data, 0, 9, false); - ck_assert_int_eq(result, 0x25); + uint8_t data[4] = {0}; + fail_unless(set_nibble(0, 0x1, data, sizeof(data))); + fail_unless(set_nibble(1, 0x2, data, sizeof(data))); + fail_unless(set_nibble(2, 0x3, data, sizeof(data))); + fail_unless(set_nibble(3, 0x4, data, sizeof(data))); + fail_unless(set_nibble(4, 0x5, data, sizeof(data))); + ck_assert_int_eq(data[0], 0x12); + ck_assert_int_eq(data[1], 0x34); + ck_assert_int_eq(data[2], 0x50); } END_TEST -START_TEST (test_get_off_byte_boundary) -{ - uint64_t data = 0x000012FA00000000; - uint64_t result = getBitField(data, 12, 8, false); - ck_assert_int_eq(result, 0x01); -} END_TEST - -START_TEST (test_set_field) +START_TEST (test_get_nibble) { - uint64_t data = 0; - setBitField(&data, 1, 0, 1); - uint64_t result = getBitField(data, 0, 1, false); - ck_assert_int_eq(result, 0x1); - data = 0; - setBitField(&data, 1, 1, 1); - result = getBitField(data, 1, 1, false); + uint8_t data[4] = {0x12, 0x34, 0x56, 0x78}; + uint8_t result = get_nibble(data, sizeof(data), 0); ck_assert_int_eq(result, 0x1); - - data = 0; - setBitField(&data, 0xf, 3, 4); - result = getBitField(data, 3, 4, false); - ck_assert_int_eq(result, 0xf); -} -END_TEST - -START_TEST (test_set_doesnt_clobber_existing_data) -{ - uint64_t data = 0xFFFC4DF300000000; - setBitField(&data, 0x4fc8, 16, 16); - uint64_t result = getBitField(data, 16, 16, false); - fail_unless(result == 0x4fc8, - "Field retrieved in 0x%X was 0x%X instead of 0x%X", data, result, - 0xc84f); - - data = 0x8000000000000000; - setBitField(&data, 1, 21, 1); - fail_unless(data == 0x8000040000000000LLU, - "Expected combined value 0x8000040000000000 but got 0x%X%X", - data >> 32, data); -} -END_TEST - -START_TEST (test_set_off_byte_boundary) -{ - uint64_t data = 0xFFFC4DF300000000; - setBitField(&data, 0x12, 12, 8); - uint64_t result = getBitField(data, 12, 12, false); - ck_assert_int_eq(result,0x12d); -} -END_TEST - -START_TEST (test_set_odd_number_of_bits) -{ - uint64_t data = 0xFFFC4DF300000000LLU; - setBitField(&data, 0x12, 11, 5); - uint64_t result = getBitField(data, 11, 5, false); - fail_unless(result == 0x12, - "Field set in 0x%X%X%X%X was %d instead of %d", data, result, - 0x12); - - data = 0xFFFC4DF300000000LLU; - setBitField(&data, 0x2, 11, 5); - result = getBitField(data, 11, 5, false); - fail_unless(result == 0x2, - "Field set in 0x%X%X%X%X was %d instead of %d", data, result, - 0x2); -} -END_TEST - -START_TEST(test_nth_byte) -{ - uint64_t data = 0x00000000F34DFCFF; - uint8_t result = nthByte(data, 0); - uint8_t expected = 0x0; - ck_assert_int_eq(result, expected); - - result = nthByte(data, 4); - expected = 0xF3; - ck_assert_int_eq(result, expected); - - result = nthByte(data, 5); - expected = 0x4D; - ck_assert_int_eq(result, expected); - - result = nthByte(data, 6); - expected = 0xFC; - ck_assert_int_eq(result, expected); - - result = nthByte(data, 7); - expected = 0xFF; - ck_assert_int_eq(result, expected); + result = get_nibble(data, sizeof(data), 1); + ck_assert_int_eq(result, 0x2); + result = get_nibble(data, sizeof(data), 2); + ck_assert_int_eq(result, 0x3); } END_TEST -START_TEST (test_get_byte) +START_TEST (test_get_bits_out_of_range) { uint8_t data[4] = {0x12, 0x34, 0x56, 0x78}; - uint8_t result = getByte(0, data, sizeof(data), ENDIANNESS_BIG_ENDIAN); - ck_assert_int_eq(result, 0x12); - result = getByte(3, data, sizeof(data), ENDIANNESS_BIG_ENDIAN); - ck_assert_int_eq(result, 0x78); + uint8_t result[4]; + fail_if(copy_bits_right_aligned(data, sizeof(data), 25, 16, result, + sizeof(result))); } END_TEST -START_TEST (test_get_nibble) +START_TEST (test_get_bits) { uint8_t data[4] = {0x12, 0x34, 0x56, 0x78}; - uint8_t result = getNibble(0, data, sizeof(data), ENDIANNESS_BIG_ENDIAN); - ck_assert_int_eq(result, 0x1); - result = getNibble(1, data, sizeof(data), ENDIANNESS_BIG_ENDIAN); - ck_assert_int_eq(result, 0x2); - result = getNibble(2, data, sizeof(data), ENDIANNESS_BIG_ENDIAN); - ck_assert_int_eq(result, 0x3); + uint8_t result[4] = {0}; + fail_unless(copy_bits_right_aligned(data, sizeof(data), 0, 16, result, + sizeof(result))); + ck_assert_int_eq(result[2], 0x12); + ck_assert_int_eq(result[3], 0x34); } END_TEST -START_TEST (test_get_bits) +START_TEST (test_copy_bytes) { uint8_t data[4] = {0x12, 0x34, 0x56, 0x78}; - uint8_t result[4]; - getBits(0, 16, data, 36, ENDIANNESS_BIG_ENDIAN, result); - ck_assert_int_eq(result[0], 0x12); + uint8_t result[4] = {0}; + fail_unless(copy_bytes_right_aligned(data, sizeof(data), 1, 3, result, + sizeof(result))); ck_assert_int_eq(result[1], 0x34); + ck_assert_int_eq(result[2], 0x56); + ck_assert_int_eq(result[3], 0x78); } END_TEST @@ -226,32 +74,22 @@ START_TEST (test_get_uneven_bits) { uint8_t data[4] = {0x12, 0x34, 0x56, 0x78}; uint8_t result[4] = {0}; - getBits(4, 12, data, 36, ENDIANNESS_BIG_ENDIAN, result); - ck_assert_int_eq(result[0], 0x2); - ck_assert_int_eq(result[1], 0x34); + fail_unless(copy_bits_right_aligned(data, sizeof(data), 4, 12, result, + sizeof(result))); + ck_assert_int_eq(result[2], 0x2); + ck_assert_int_eq(result[3], 0x34); } END_TEST Suite* bitfieldSuite(void) { Suite* s = suite_create("bitfield"); TCase *tc_core = tcase_create("core"); - tcase_add_test(tc_core, test_large_bitmask); - tcase_add_test(tc_core, test_one_bit); - tcase_add_test(tc_core, test_one_bit_not_swapped); - tcase_add_test(tc_core, test_one_byte); - tcase_add_test(tc_core, test_16_bit_parse); - tcase_add_test(tc_core, test_32_bit_parse); - tcase_add_test(tc_core, test_multi_byte); - tcase_add_test(tc_core, test_get_multi_byte); - tcase_add_test(tc_core, test_get_off_byte_boundary); - tcase_add_test(tc_core, test_set_field); - tcase_add_test(tc_core, test_set_doesnt_clobber_existing_data); - tcase_add_test(tc_core, test_set_off_byte_boundary); - tcase_add_test(tc_core, test_set_odd_number_of_bits); - tcase_add_test(tc_core, test_nth_byte); tcase_add_test(tc_core, test_get_byte); tcase_add_test(tc_core, test_get_nibble); + tcase_add_test(tc_core, test_set_nibble); tcase_add_test(tc_core, test_get_bits); + tcase_add_test(tc_core, test_copy_bytes); + tcase_add_test(tc_core, test_get_bits_out_of_range); tcase_add_test(tc_core, test_get_uneven_bits); suite_add_tcase(s, tc_core);