--- /dev/null
+#include <check.h>
+#include <stdint.h>
+#include <bitfield/bitfield.h>
+#include <bitfield/8byte.h>
+
+START_TEST (test_large_bitmask)
+{
+ 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 = eightbyte_get_bitfield(data, 0, 1, false);
+ fail_if(result == 1);
+}
+END_TEST
+
+START_TEST (test_one_bit)
+{
+ uint64_t data = 0x8000000000000000;
+ uint64_t result = eightbyte_get_bitfield(data, 0, 1, false);
+ fail_unless(result == 0x1,
+ "First bit in 0x%llx was 0x%llx instead of 0x1", data, result);
+}
+END_TEST
+
+START_TEST (test_32_bit_parse)
+{
+ uint64_t data = 0x0402574d555a0401;
+ uint64_t result = eightbyte_get_bitfield(data, 16, 32, false);
+ uint64_t expectedValue = 0x574d555a;
+ fail_unless(result == expectedValue,
+ "Field retrieved in 0x%llx was 0x%llx instead of 0x%llx", data,
+ result, expectedValue);
+}
+END_TEST
+
+START_TEST (test_16_bit_parse)
+{
+ uint64_t data = 0xF34DFCFF00000000;
+ uint64_t result = eightbyte_get_bitfield(data, 16, 16, false);
+ uint64_t expectedValue = 0xFCFF;
+ fail_unless(result == expectedValue,
+ "Field retrieved in 0x%llx was 0x%llx instead of 0x%llx", data,
+ result, expectedValue);
+}
+END_TEST
+
+START_TEST (test_one_byte)
+{
+ uint64_t data = 0xFA00000000000000;
+ uint64_t result = eightbyte_get_bitfield(data, 0, 4, false);
+ fail_unless(result == 0xF,
+ "First nibble in 0x%llx was 0x%llx instead of 0xF", data, result);
+ result = eightbyte_get_bitfield(data, 4, 4, false);
+ fail_unless(result == 0xA,
+ "Second nibble in 0x%llx was 0x%llx instead of 0xA", data, result);
+ result = eightbyte_get_bitfield(data, 0, 8, false);
+ fail_unless(result == 0xFA,
+ "All bits in 0x%llx were 0x%llx instead of 0x%llx", data, result, data);
+}
+END_TEST
+
+START_TEST (test_multi_byte)
+{
+ uint64_t data = 0x12FA000000000000;
+ uint64_t result = eightbyte_get_bitfield(data, 0, 4, false);
+ fail_unless(result == 0x1,
+ "First 4 bits in 0x%llx was 0x%llx instead of 0xF", (data >> 60) & 0xF,
+ result);
+ result = eightbyte_get_bitfield(data, 4, 4, false);
+ fail_unless(result == 0x2,
+ "Second 4 bits in 0x%llx was 0x%llx instead of 0xA", (data >> 56) & 0xF,
+ result);
+ result = eightbyte_get_bitfield(data, 8, 4, false);
+ fail_unless(result == 0xF,
+ "First 4 bits in 0x%llx was 0x%llx instead of 0x1", (data >> 52) & 0xF,
+ result);
+ result = eightbyte_get_bitfield(data, 12, 4, false);
+ fail_unless(result == 0xA,
+ "Second 4 bits in 0x%llx was 0x%llx instead of 0x2", (data >> 48) % 0xF,
+ result);
+}
+END_TEST
+
+START_TEST (test_get_multi_byte)
+{
+ uint64_t data = 0x12FA000000000000;
+ uint64_t result = eightbyte_get_bitfield(data, 0, 9, false);
+ ck_assert_int_eq(result, 0x25);
+}
+END_TEST
+
+START_TEST (test_get_off_byte_boundary)
+{
+ uint64_t data = 0x000012FA00000000;
+ uint64_t result = eightbyte_get_bitfield(data, 12, 8, false);
+ ck_assert_int_eq(result, 0x01);
+} END_TEST
+
+START_TEST (test_set_wont_fit)
+{
+ uint64_t data = 0;
+ fail_if(eightbyte_set_bitfield(100, 0, 1, &data));
+}
+END_TEST
+
+START_TEST (test_set_field)
+{
+ uint64_t data = 0;
+ fail_unless(eightbyte_set_bitfield(1, 0, 1, &data));
+ uint64_t result = eightbyte_get_bitfield(data, 0, 1, false);
+ ck_assert_int_eq(result, 0x1);
+ data = 0;
+ fail_unless(eightbyte_set_bitfield(1, 1, 1, &data));
+ result = eightbyte_get_bitfield(data, 1, 1, false);
+ ck_assert_int_eq(result, 0x1);
+
+ data = 0;
+ fail_unless(eightbyte_set_bitfield(0xf, 3, 4, &data));
+ result = eightbyte_get_bitfield(data, 3, 4, false);
+ ck_assert_int_eq(result, 0xf);
+}
+END_TEST
+
+START_TEST (test_set_doesnt_clobber_existing_data)
+{
+ uint64_t data = 0xFFFC4DF300000000;
+ fail_unless(eightbyte_set_bitfield(0x4fc8, 16, 16, &data));
+ uint64_t result = eightbyte_get_bitfield(data, 16, 16, false);
+ fail_unless(result == 0x4fc8,
+ "Field retrieved in 0x%llx was 0x%llx instead of 0x%x", data, result,
+ 0xc84f);
+
+ data = 0x8000000000000000;
+ fail_unless(eightbyte_set_bitfield(1, 21, 1, &data));
+ fail_unless(data == 0x8000040000000000LLU,
+ "Expected combined value 0x8000040000000000 but got 0x%llx%llx",
+ data >> 32, data);
+}
+END_TEST
+
+START_TEST (test_set_off_byte_boundary)
+{
+ uint64_t data = 0xFFFC4DF300000000;
+ fail_unless(eightbyte_set_bitfield(0x12, 12, 8, &data));
+ uint64_t result = eightbyte_get_bitfield(data, 12, 12, false);
+ ck_assert_int_eq(result,0x12d);
+}
+END_TEST
+
+START_TEST (test_set_odd_number_of_bits)
+{
+ uint64_t data = 0xFFFC4DF300000000LLU;
+ fail_unless(eightbyte_set_bitfield(0x12, 11, 5, &data));
+ uint64_t result = eightbyte_get_bitfield(data, 11, 5, false);
+ fail_unless(result == 0x12,
+ "Field set in 0x%llx%llx%llx%llx was 0x%llx instead of 0x%llx", data, result,
+ 0x12);
+
+ data = 0xFFFC4DF300000000LLU;
+ fail_unless(eightbyte_set_bitfield(0x2, 11, 5, &data));
+ result = eightbyte_get_bitfield(data, 11, 5, false);
+ fail_unless(result == 0x2,
+ "Field set in 0x%llx%llx%llx%llx was 0x%llx instead of 0x%llx", data, result,
+ 0x2);
+}
+END_TEST
+
+START_TEST(test_eightbyte_get_byte)
+{
+ uint64_t data = 0x00000000F34DFCFF;
+ uint8_t result = eightbyte_get_byte(data, 0, false);
+ uint8_t expected = 0x0;
+ ck_assert_int_eq(result, expected);
+
+ result = eightbyte_get_byte(data, 4, false);
+ expected = 0xF3;
+ ck_assert_int_eq(result, expected);
+
+ result = eightbyte_get_byte(data, 5, false);
+ expected = 0x4D;
+ ck_assert_int_eq(result, expected);
+
+ result = eightbyte_get_byte(data, 6, false);
+ expected = 0xFC;
+ ck_assert_int_eq(result, expected);
+
+ result = eightbyte_get_byte(data, 7, false);
+ expected = 0xFF;
+ ck_assert_int_eq(result, expected);
+}
+END_TEST
+
+START_TEST(test_eightbyte_get_nibble)
+{
+ uint64_t data = 0x00000000F34DFCFF;
+ uint8_t result = eightbyte_get_nibble(data, 0, false);
+ uint8_t expected = 0x0;
+ ck_assert_int_eq(result, expected);
+
+ result = eightbyte_get_nibble(data, 2, false);
+ expected = 0x0;
+ ck_assert_int_eq(result, expected);
+
+ result = eightbyte_get_nibble(data, 8, false);
+ expected = 0xF;
+ ck_assert_int_eq(result, expected);
+
+ result = eightbyte_get_nibble(data, 9, false);
+ expected = 0x3;
+ ck_assert_int_eq(result, expected);
+
+ result = eightbyte_get_nibble(data, 10, false);
+ expected = 0x4;
+ ck_assert_int_eq(result, expected);
+
+ result = eightbyte_get_nibble(data, 13, false);
+ expected = 0xC;
+ ck_assert_int_eq(result, expected);
+}
+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_wont_fit);
+ 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_eightbyte_get_nibble);
+ tcase_add_test(tc_core, test_eightbyte_get_byte);
+ suite_add_tcase(s, tc_core);
+
+ return s;
+}
+
+int main(void) {
+ int numberFailed;
+ Suite* s = bitfieldSuite();
+ SRunner *sr = srunner_create(s);
+ // Don't fork so we can actually use gdb
+ srunner_set_fork_status(sr, CK_NOFORK);
+ srunner_run_all(sr, CK_NORMAL);
+ numberFailed = srunner_ntests_failed(sr);
+ srunner_free(sr);
+ return (numberFailed == 0) ? 0 : 1;
+}
Code Review / apps / low-level-can-service.git / blobdiff