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tests: timer_behavior: fix a period drift logic error

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An assertion statement was a bit too strict. Period drift may come about
not only from kernel ticks being large but also from time conversion being
inexact due to division truncation.

Fixes: #55136

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
This commit is contained in:
Nicolas Pitre 2023-02-23 21:48:30 -05:00 • committed by Anas Nashif
commit b2e204e9a6
1 changed files with 3 additions and 3 deletions
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6
tests/kernel/timer/timer_behavior/src/jitter_drift.c
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@ -171,10 +171,10 @@ ZTEST(timer_jitter_drift, test_jitter_drift)
TC_PRINT("test timer period (%u us) is smaller than "
"system tick period (%u us):\n",
CONFIG_TIMER_TEST_PERIOD, k_ticks_to_us_near32(1));
TC_PRINT(" expected period drift %.8g us\n", expected_period_drift);
zassert_true(expected_period_drift != 0.0);
} else {
zassert_true(expected_period_drift == 0.0);
}
if (expected_period_drift != 0.0) {
TC_PRINT("expected period drift: %.8g us\n", expected_period_drift);
}
TC_PRINT("period duration statistics for %d samples (%u rollovers):\n",
CONFIG_TIMER_TEST_SAMPLES - periodic_rollovers, periodic_rollovers);