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authorChristopher Peplin <chris.peplin@rhubarbtech.com>2013-12-29 11:48:24 -0500
committerChristopher Peplin <chris.peplin@rhubarbtech.com>2013-12-29 11:48:24 -0500
commit6ce03a4f1b229e605da08b073fad6f7c0fe8bf10 (patch)
treea9e0a8ac6ef6a128878025165e0b84d82e699c02
parenta855335e3ad18a9d0094357eb39622448f8649a9 (diff)
Split up 8 byte wrappers from generic bit array functions.
-rw-r--r--src/bitfield/8byte.c56
-rw-r--r--src/bitfield/8byte.h74
-rw-r--r--src/bitfield/bitfield.c50
-rw-r--r--src/bitfield/bitfield.h59
-rw-r--r--tests/8byte_tests.c225
-rw-r--r--tests/bitfield_tests.c202
6 files changed, 355 insertions, 311 deletions
diff --git a/src/bitfield/8byte.c b/src/bitfield/8byte.c
new file mode 100644
index 00000000..0f249d93
--- /dev/null
+++ b/src/bitfield/8byte.c
@@ -0,0 +1,56 @@
+#include <bitfield/bitfield.h>
+#include <bitfield/8byte.h>
+#include <stddef.h>
+#include <limits.h>
+#include <string.h>
+
+uint64_t bitmask(const uint8_t numBits) {
+ return (((uint64_t)0x1) << numBits) - 1;
+}
+
+static uint16_t bitsToBytes(uint32_t bits) {
+ uint8_t byte_count = bits / CHAR_BIT;
+ if(bits % CHAR_BIT != 0) {
+ ++byte_count;
+ }
+ return byte_count;
+}
+
+uint64_t getBitField(uint64_t data, const uint16_t startBit,
+ const uint16_t numBits, bool bigEndian) {
+ uint8_t result[8] = {0};
+ if(!bigEndian) {
+ data = __builtin_bswap64(data);
+ }
+ copyBitsRightAligned((const uint8_t*)&data, sizeof(data), startBit, numBits,
+ result, sizeof(result));
+ uint64_t int_result = 0;
+
+ if(!bigEndian) {
+ // we need to swap the byte order of the array to get it into a
+ // uint64_t, but it's been right aligned so we have to be more careful
+ for(int i = 0; i < bitsToBytes(numBits); i++) {
+ int_result |= result[bitsToBytes(numBits) - i - 1] << (CHAR_BIT * i);
+ }
+ } else {
+ int_result = *(uint64_t*)result;
+ }
+ return int_result;
+}
+
+/**
+ * TODO it would be nice to have a warning if you call with this a value that
+ * won't fit in the number of bits you've specified it should use.
+ */
+void setBitField(uint64_t* data, uint64_t value, const uint16_t startPos,
+ const uint16_t numBits) {
+ int shiftDistance = 64 - startPos - numBits;
+ value <<= shiftDistance;
+ *data &= ~(bitmask(numBits) << shiftDistance);
+ *data |= value;
+}
+
+uint8_t nthByte(const uint64_t source, const uint16_t byteNum) {
+ return (source >> (64 - ((byteNum + 1) * CHAR_BIT))) & 0xFF;
+}
+
diff --git a/src/bitfield/8byte.h b/src/bitfield/8byte.h
new file mode 100644
index 00000000..13b6aff3
--- /dev/null
+++ b/src/bitfield/8byte.h
@@ -0,0 +1,74 @@
+#ifndef __8BYTE_H__
+#define __8BYTE_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// TODO using uint64_t everywhere for CAN message payload is kind of cute, but
+// in actuality a CAN message may have a smaller payload, and it makes all of
+// these functions not applicable to other data sizes. It's also fairly
+// inefficient on 32-bit platforms. how much work is it to switch vi-firmware
+// to using uint8_t*?
+
+/* Public: Reads a subset of bits from a byte array.
+ *
+ * data - the bytes in question.
+ * startPos - the starting index of the bit field (beginning from 0).
+ * numBits - the width of the bit field to extract.
+ * bigEndian - if the data passed in is little endian, set this to false and it
+ * will be flipped before grabbing the bit field.
+ *
+ * Bit fields are positioned according to big-endian bit layout, but inside the
+ * bit field, values are represented as little-endian. Therefore, to get the bit
+ * field, we swap the overall byte order if bigEndian == false and
+ * use the value we find in the field (assuming the embedded platform is little
+ * endian).
+ *
+ * For example, the bit layout of the value "42" (i.e. 00101010 set at position
+ * 14 with length 6 is:
+ *
+ * 000000000000001010100000000000000000000000000000000000000000000
+ *
+ * and the same value and position but with length 8 is:
+ *
+ * 000000000000000010101000000000000000000000000000000000000000000
+ *
+ * If the architecture where is code is running is little-endian, the input data
+ * will be swapped before grabbing the bit field.
+ *
+ * Examples
+ *
+ * uint64_t value = getBitField(data, 2, 4);
+ *
+ * Returns the value of the requested bit field.
+ */
+uint64_t getBitField(uint64_t data, const uint16_t startPos,
+ const uint16_t numBits, bool bigEndian);
+
+/* Public: Set the bit field in the given data array to the new value.
+ *
+ * data - a byte array with size at least startPos + numBits.
+ * value - the value to set in the bit field.
+ * startPos - the starting index of the bit field (beginning from 0).
+ */
+void setBitField(uint64_t* data, uint64_t value, const uint16_t startPos,
+ const uint16_t numBits);
+
+/* Public: Retreive the nth byte out of 8 bytes in a uint64_t.
+ *
+ * source - the source data to retreive the byte from.
+ * byteNum - the index of the byte, starting at 0 and assuming big-endian order.
+ *
+ * Returns the requested byte from the source bytes.
+ */
+uint8_t nthByte(const uint64_t source, const uint16_t byteNum);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __8BYTE_H__
diff --git a/src/bitfield/bitfield.c b/src/bitfield/bitfield.c
index 934d5a6a..3bf00ac0 100644
--- a/src/bitfield/bitfield.c
+++ b/src/bitfield/bitfield.c
@@ -5,56 +5,6 @@
#define NIBBLE_SIZE (CHAR_BIT / 2)
-uint64_t bitmask(const uint8_t numBits) {
- return (((uint64_t)0x1) << numBits) - 1;
-}
-
-static uint16_t bitsToBytes(uint32_t bits) {
- uint8_t byte_count = bits / CHAR_BIT;
- if(bits % CHAR_BIT != 0) {
- ++byte_count;
- }
- return byte_count;
-}
-
-uint64_t getBitField(uint64_t data, const uint16_t startBit,
- const uint16_t numBits, bool bigEndian) {
- uint8_t result[8] = {0};
- if(!bigEndian) {
- data = __builtin_bswap64(data);
- }
- copyBitsRightAligned((const uint8_t*)&data, sizeof(data), startBit, numBits,
- result, sizeof(result));
- uint64_t int_result = 0;
-
- if(!bigEndian) {
- // we need to swap the byte order of the array to get it into a
- // uint64_t, but it's been right aligned so we have to be more careful
- for(int i = 0; i < bitsToBytes(numBits); i++) {
- int_result |= result[bitsToBytes(numBits) - i - 1] << (CHAR_BIT * i);
- }
- } else {
- int_result = *(uint64_t*)result;
- }
- return int_result;
-}
-
-/**
- * TODO it would be nice to have a warning if you call with this a value that
- * won't fit in the number of bits you've specified it should use.
- */
-void setBitField(uint64_t* data, uint64_t value, const uint16_t startPos,
- const uint16_t numBits) {
- int shiftDistance = 64 - startPos - numBits;
- value <<= shiftDistance;
- *data &= ~(bitmask(numBits) << shiftDistance);
- *data |= value;
-}
-
-uint8_t nthByte(const uint64_t source, const uint16_t byteNum) {
- return (source >> (64 - ((byteNum + 1) * CHAR_BIT))) & 0xFF;
-}
-
uint8_t getNibble(const uint8_t source[], const uint8_t source_length,
const uint8_t nibble_index) {
uint8_t byte_index = nibble_index / 2;
diff --git a/src/bitfield/bitfield.h b/src/bitfield/bitfield.h
index 45e3ba26..6f5f1c18 100644
--- a/src/bitfield/bitfield.h
+++ b/src/bitfield/bitfield.h
@@ -108,65 +108,6 @@ bool copyBitsRightAligned(const uint8_t source[], const uint16_t source_length,
const uint16_t offset, const uint16_t bit_count,
uint8_t* destination, const uint16_t destination_length);
-// TODO using uint64_t everywhere for CAN message payload is kind of cute, but
-// in actuality a CAN message may have a smaller payload, and it makes all of
-// these functions not applicable to other data sizes. It's also fairly
-// inefficient on 32-bit platforms. how much work is it to switch vi-firmware
-// to using uint8_t*?
-
-/* Public: Reads a subset of bits from a byte array.
- *
- * data - the bytes in question.
- * startPos - the starting index of the bit field (beginning from 0).
- * numBits - the width of the bit field to extract.
- * bigEndian - if the data passed in is little endian, set this to false and it
- * will be flipped before grabbing the bit field.
- *
- * Bit fields are positioned according to big-endian bit layout, but inside the
- * bit field, values are represented as little-endian. Therefore, to get the bit
- * field, we swap the overall byte order if bigEndian == false and
- * use the value we find in the field (assuming the embedded platform is little
- * endian).
- *
- * For example, the bit layout of the value "42" (i.e. 00101010 set at position
- * 14 with length 6 is:
- *
- * 000000000000001010100000000000000000000000000000000000000000000
- *
- * and the same value and position but with length 8 is:
- *
- * 000000000000000010101000000000000000000000000000000000000000000
- *
- * If the architecture where is code is running is little-endian, the input data
- * will be swapped before grabbing the bit field.
- *
- * Examples
- *
- * uint64_t value = getBitField(data, 2, 4);
- *
- * Returns the value of the requested bit field.
- */
-uint64_t getBitField(uint64_t data, const uint16_t startPos,
- const uint16_t numBits, bool bigEndian);
-
-/* Public: Set the bit field in the given data array to the new value.
- *
- * data - a byte array with size at least startPos + numBits.
- * value - the value to set in the bit field.
- * startPos - the starting index of the bit field (beginning from 0).
- */
-void setBitField(uint64_t* data, uint64_t value, const uint16_t startPos,
- const uint16_t numBits);
-
-/* Public: Retreive the nth byte out of 8 bytes in a uint64_t.
- *
- * source - the source data to retreive the byte from.
- * byteNum - the index of the byte, starting at 0 and assuming big-endian order.
- *
- * Returns the requested byte from the source bytes.
- */
-uint8_t nthByte(const uint64_t source, const uint16_t byteNum);
-
#ifdef __cplusplus
}
#endif
diff --git a/tests/8byte_tests.c b/tests/8byte_tests.c
new file mode 100644
index 00000000..140c4efb
--- /dev/null
+++ b/tests/8byte_tests.c
@@ -0,0 +1,225 @@
+#include <check.h>
+#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)
+{
+ 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);
+}
+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%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);
+}
+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%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
+
+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);
+ 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;
+}
diff --git a/tests/bitfield_tests.c b/tests/bitfield_tests.c
index 00a28a36..f6287c19 100644
--- a/tests/bitfield_tests.c
+++ b/tests/bitfield_tests.c
@@ -2,194 +2,6 @@
#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)
-{
- 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);
-}
-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%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);
-}
-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%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};
@@ -243,20 +55,6 @@ 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_get_bits);