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tests: use igt_assert_lte to verify pm_backlight test results

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Gives out better diagnostics than just igt_asssert.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Jani Nikula 2015-11-18 12:46:53 +02:00
parent f201495575
commit 77a76ba09a
1 changed files with 3 additions and 1 deletions
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4
tests/pm_backlight.c
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@ -94,6 +94,7 @@ static int backlight_write(int value, const char *fname)
static void test_and_verify(int val)
{
int result;
int tolerance = val * TOLERANCE / 100;
igt_assert_eq(backlight_write(val, "brightness"), 0);
igt_assert_eq(backlight_read(&result, "brightness"), 0);
@ -102,7 +103,8 @@ static void test_and_verify(int val)
igt_assert_eq(backlight_read(&result, "actual_brightness"), 0);
/* Some rounding may happen depending on hw. Just check that it's close enough. */
igt_assert(result <= val + val * TOLERANCE / 100 && result >= val - val * TOLERANCE / 100);
igt_assert_lte(result, val + tolerance);
igt_assert_lte(val - tolerance, result);
}
static void test_brightness(int max)