2e509336c7
- Added `icmp_checksum`. - Added `icmp_get_time`. - Created unit tests for checksum and time. - Set `-D_POSIX_C_SOURCE=199309L` in CPPFLAGS for clock_gettime support.
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
#include <criterion/criterion.h>
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#include <stdint.h>
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#include <time.h>
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#include "internal/icmp_utils.h"
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/* Test 1: icmp_get_time() fills the timespec structure */
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Test(time, get_time_fills_struct)
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{
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struct timespec ts = {0};
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int ret = icmp_get_time(&ts);
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cr_assert_eq(ret, 0, "Expected 0 (success), got %d", ret);
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/* Should have non-zero seconds */
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cr_assert_neq(ts.tv_sec, 0,
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"Expected non-zero timestamp, got tv_sec=%ld", ts.tv_sec);
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}
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/* Test 2: Time difference with same timestamp should be zero */
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Test(time, diff_same_time_is_zero)
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{
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struct timespec ts;
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int ret = icmp_get_time(&ts);
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cr_assert_eq(ret, 0, "Expected 0 (success), got %d", ret);
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int64_t diff = icmp_time_diff_ns(&ts, &ts);
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cr_assert_eq(diff, 0, "Same timestamp should give 0ns diff, got %ld", diff);
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}
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/* Test 3: Time difference calculation is correct */
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Test(time, diff_calculation)
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{
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struct timespec start = {.tv_sec = 10, .tv_nsec = 500000000}; /* 10.5s */
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struct timespec end = {.tv_sec = 12, .tv_nsec = 750000000}; /* 12.75s */
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int64_t diff = icmp_time_diff_ns(&start, &end);
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/* Expected: (12 - 10) * 1e9 + (750000000 - 500000000)
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* = 2000000000 + 250000000 = 2250000000 ns = 2.25s */
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cr_assert_eq(diff, 2250000000LL,
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"Expected 2250000000ns, got %ld", diff);
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}
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