#include <stdint.h>
#include <bitfield/bitfield.h>
-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 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 = getBitField(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 = getBitField(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 = getBitField(data, 0, 4, false);
- fail_unless(result == 0xF,
- "First 4 bits in 0x%llx was 0x%llx instead of 0xF", data, result);
- result = getBitField(data, 4, 4, false);
- fail_unless(result == 0xA,
- "First 4 bits in 0x%llx was 0x%llx instead of 0xA", data, result);
- result = getBitField(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 = getBitField(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 = getBitField(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 = getBitField(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 = getBitField(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 = getBitField(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 = getBitField(data, 12, 8, false);
- ck_assert_int_eq(result, 0x01);
-} END_TEST
-
-START_TEST (test_set_field)
+START_TEST (test_get_byte)
{
- 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);
- 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);
+ 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_set_doesnt_clobber_existing_data)
+START_TEST (test_set_nibble)
{
- 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%llx was 0x%llx 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%llx%llx",
- data >> 32, data);
+ 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_set_off_byte_boundary)
+START_TEST (test_set_bitfield)
{
- uint64_t data = 0xFFFC4DF300000000;
- setBitField(&data, 0x12, 12, 8);
- uint64_t result = getBitField(data, 12, 12, false);
- ck_assert_int_eq(result,0x12d);
+ uint8_t data[4] = {0};
+ fail_unless(set_bitfield(0x12, 0, 8, data, sizeof(data)));
+ fail_unless(set_bitfield(bitmask(3), 10, 3, data, sizeof(data)));
+ ck_assert_int_eq(data[0], 0x12);
+ ck_assert_int_eq(data[1], 0x38);
}
END_TEST
-START_TEST (test_set_odd_number_of_bits)
+START_TEST (test_set_bitfield_doesnt_fit)
{
- 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%llx%llx%llx%llx was 0x%llx instead of 0x%llx", data, result,
- 0x12);
-
- data = 0xFFFC4DF300000000LLU;
- setBitField(&data, 0x2, 11, 5);
- result = getBitField(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_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);
-}
-END_TEST
-
-START_TEST (test_get_byte)
-{
- uint8_t data[4] = {0x12, 0x34, 0x56, 0x78};
- uint8_t result = getByte(0, data, sizeof(data));
- ck_assert_int_eq(result, 0x12);
- result = getByte(3, data, sizeof(data));
- ck_assert_int_eq(result, 0x78);
+ uint8_t data[4] = {0};
+ fail_if(set_bitfield(0xffff, 0, 8, data, sizeof(data)));
+ ck_assert_int_eq(data[0], 0);
+ ck_assert_int_eq(data[1], 0);
+ ck_assert_int_eq(data[2], 0);
+ ck_assert_int_eq(data[3], 0);
}
END_TEST
START_TEST (test_get_nibble)
{
uint8_t data[4] = {0x12, 0x34, 0x56, 0x78};
- uint8_t result = getNibble(0, data, sizeof(data));
+ uint8_t result = get_nibble(data, sizeof(data), 0);
ck_assert_int_eq(result, 0x1);
- result = getNibble(1, data, sizeof(data));
+ result = get_nibble(data, sizeof(data), 1);
ck_assert_int_eq(result, 0x2);
- result = getNibble(2, data, sizeof(data));
+ result = get_nibble(data, sizeof(data), 2);
ck_assert_int_eq(result, 0x3);
}
END_TEST
{
uint8_t data[4] = {0x12, 0x34, 0x56, 0x78};
uint8_t result[4];
- fail_if(copyBitsRightAligned(data, 4, 25, 16, result, 4));
+ fail_if(copy_bits_right_aligned(data, sizeof(data), 25, 16, result,
+ sizeof(result)));
}
END_TEST
{
uint8_t data[4] = {0x12, 0x34, 0x56, 0x78};
uint8_t result[4] = {0};
- fail_unless(copyBitsRightAligned(data, 4, 0, 16, result, 4));
- ck_assert_int_eq(result[0], 0x12);
+ 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_copy_bytes)
+{
+ uint8_t data[4] = {0x12, 0x34, 0x56, 0x78};
+ 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
{
uint8_t data[4] = {0x12, 0x34, 0x56, 0x78};
uint8_t result[4] = {0};
- fail_unless(copyBitsRightAligned(data, 4, 4, 12, result, 4));
- 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_set_bitfield);
+ tcase_add_test(tc_core, test_set_bitfield_doesnt_fit);
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);
Code Review / apps / agl-service-can-low-level.git / blobdiff