Sandro/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-09-18 23:09:29 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

iio: test: iio-test-format: add test case for decimal format

Browse Source 
Add iio_test_iio_format_value_decimal_64() kunit test case for decimal
value formatting, exploring different scales types. Also, the same
iio_val_s64_decompose() helper used to populate local array is used in
iio_test_iio_format_value_integer_64().

Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Rodrigo Alencar
2026-06-30 00:15:52 +01:00
committed by Jonathan Cameron
parent 454f60336d
commit c2282e36b3
1 changed files with 75 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/iio/test/iio-test-format.c
+75 -22
View File
@@ -200,56 +200,108 @@ static void iio_test_iio_format_value_multiple(struct kunit *test)
static void iio_test_iio_format_value_integer_64(struct kunit *test)
{
int values[2];
s64 value;
char *buf;
int ret;
buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
value = 24;
values[0] = lower_32_bits(value);
values[1] = upper_32_bits(value);
iio_val_s64_decompose(24, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_INT_64, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "24\n");
value = -24;
values[0] = lower_32_bits(value);
values[1] = upper_32_bits(value);
iio_val_s64_decompose(-24, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_INT_64, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-24\n");
value = 0;
values[0] = lower_32_bits(value);
values[1] = upper_32_bits(value);
iio_val_s64_decompose(0, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_INT_64, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "0\n");
value = UINT_MAX;
values[0] = lower_32_bits(value);
values[1] = upper_32_bits(value);
iio_val_s64_decompose(UINT_MAX, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_INT_64, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "4294967295\n");
value = -((s64)UINT_MAX);
values[0] = lower_32_bits(value);
values[1] = upper_32_bits(value);
iio_val_s64_decompose(-((s64)UINT_MAX), &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_INT_64, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-4294967295\n");
value = LLONG_MAX;
values[0] = lower_32_bits(value);
values[1] = upper_32_bits(value);
iio_val_s64_decompose(LLONG_MAX, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_INT_64, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "9223372036854775807\n");
value = LLONG_MIN;
values[0] = lower_32_bits(value);
values[1] = upper_32_bits(value);
iio_val_s64_decompose(LLONG_MIN, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_INT_64, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-9223372036854775808\n");
}
static void iio_test_iio_format_value_decimal_64(struct kunit *test)
{
int values[2];
char *buf;
int ret;
buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
/* DECIMAL64_MILLI: positive >= 1, value 1.234 */
iio_val_s64_decompose(1234, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_MILLI, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "1.234\n");
/* DECIMAL64_MICRO: positive >= 1, value 3.141592 */
iio_val_s64_decompose(3141592, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_MICRO, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "3.141592\n");
/* DECIMAL64_MILLI: positive < 1, value 0.042 */
iio_val_s64_decompose(42, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_MILLI, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "0.042\n");
/* DECIMAL64_MILLI: negative <= -1, value -1.234 */
iio_val_s64_decompose(-1234, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_MILLI, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-1.234\n");
/* DECIMAL64_MILLI: negative > -1, value -0.123 */
iio_val_s64_decompose(-123, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_MILLI, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-0.123\n");
/* DECIMAL64_MILLI: zero */
iio_val_s64_decompose(0, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_MILLI, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "0.000\n");
/* DECIMAL64_NANO: value 1.000000001 */
iio_val_s64_decompose(1000000001, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_NANO, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "1.000000001\n");
/* DECIMAL64_MICRO: large value using upper 32 bits */
iio_val_s64_decompose(5000000000000042LL, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_MICRO, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "5000000000.000042\n");
/* limits */
iio_val_s64_decompose(LLONG_MAX, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_PICO, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "9223372.036854775807\n");
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_NANO, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "9223372036.854775807\n");
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_MICRO, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "9223372036854.775807\n");
iio_val_s64_decompose(LLONG_MIN, &values[0], &values[1]);
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_PICO, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-9223372.036854775808\n");
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_NANO, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-9223372036.854775808\n");
ret = iio_format_value(buf, IIO_VAL_DECIMAL64_MICRO, ARRAY_SIZE(values), values);
IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-9223372036854.775808\n");
}
static struct kunit_case iio_format_test_cases[] = {
KUNIT_CASE(iio_test_iio_format_value_integer),
KUNIT_CASE(iio_test_iio_format_value_fixedpoint),
@@ -257,6 +309,7 @@ static struct kunit_case iio_format_test_cases[] = {
KUNIT_CASE(iio_test_iio_format_value_fractional_log2),
KUNIT_CASE(iio_test_iio_format_value_multiple),
KUNIT_CASE(iio_test_iio_format_value_integer_64),
KUNIT_CASE(iio_test_iio_format_value_decimal_64),
{ }
};