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tests: runtime: wait for tail truncate output #11810

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Merged
edsiper merged 1 commit into from
May 16, 2026
Merged

tests: runtime: wait for tail truncate output #11810

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34 changes: 30 additions & 4 deletions tests/runtime/in_tail.c
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Original file line number Diff line number Diff line change
Expand Up @@ -340,6 +340,35 @@ void wait_num_with_timeout(uint32_t timeout_ms, int *output_num)
}
}

void wait_expected_num_with_timeout(uint32_t timeout_ms, int expected_num, int *output_num)
{
struct flb_time start_time;
struct flb_time end_time;
struct flb_time diff_time;
uint64_t elapsed_time_flb = 0;

flb_time_get(&start_time);

while (true) {
*output_num = get_output_num();

if (*output_num >= expected_num) {
break;
}

flb_time_msleep(100);
flb_time_get(&end_time);
flb_time_diff(&end_time, &start_time, &diff_time);
elapsed_time_flb = flb_time_to_nanosec(&diff_time) / 1000000;

if (elapsed_time_flb > timeout_ms) {
flb_warn("[timeout] elapsed_time: %ld", elapsed_time_flb);
/* Reached timeout. */
break;
}
}
}

static inline int64_t set_result(int64_t v)
{
int64_t old = __sync_lock_test_and_set(&result_time, v);
Expand Down Expand Up @@ -1066,13 +1095,10 @@ void flb_test_in_tail_truncate_long_lines()
flb_ctx_t *ctx = NULL;
int in_ffd, out_ffd;
char path[PATH_MAX];
struct tail_test_result result = {0};
int fd;

const char *target = "truncate_long_lines_basic";
int nExpected = 3; /* before + truncated long line + after */
int nExpectedNotMatched = 0; /* unused */
int nExpectedLines = 0; /* unused */

struct flb_lib_out_cb cb;
int unused = 0;
Expand Down Expand Up @@ -1128,7 +1154,7 @@ void flb_test_in_tail_truncate_long_lines()
ret = flb_start(ctx);
TEST_CHECK_(ret == 0, "starting engine");

wait_num_with_timeout(5000, &num);
wait_expected_num_with_timeout(5000, nExpected, &num);

num = get_output_num();
TEST_CHECK(num == nExpected);
Expand Down
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