linux-kernel - [PATCH v7 3/3] iio: test: Add test for IIO_VAL_INT

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Date:   Tue,  2 Nov 2021 09:33:00 +0200
From:   Andriy Tryshnivskyy <andriy.tryshnivskyy@...nsynergy.com>
To:     andy.shevchenko@...il.com
Cc:     Vasyl.Vavrychuk@...nsynergy.com,
        andriy.tryshnivskyy@...nsynergy.com, jbhayana@...gle.com,
        jic23@...nel.org, lars@...afoo.de, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v7 3/3] iio: test: Add test for IIO_VAL_INT_64.

Signed-off-by: Andriy Tryshnivskyy <andriy.tryshnivskyy@...nsynergy.com>
---
 drivers/iio/test/iio-test-format.c | 51 ++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/drivers/iio/test/iio-test-format.c b/drivers/iio/test/iio-test-format.c
index f1e951eddb43..f07945c2cf28 100644
--- a/drivers/iio/test/iio-test-format.c
+++ b/drivers/iio/test/iio-test-format.c
@@ -182,12 +182,63 @@ static void iio_test_iio_format_value_multiple(struct kunit *test)
 	IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "1 -2 3 -4 5 \n");
 }
 
+static void iio_test_iio_format_value_integer_64(struct kunit *test)
+{
+	char *buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
+	s64 value;
+	int values[2];
+	int ret;
+
+	value = 24;
+	values[0] = lower_32_bits(value);
+	values[1] = upper_32_bits(value);
+	ret = iio_format_value(buf, IIO_VAL_INT_64, 2, 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);
+	ret = iio_format_value(buf, IIO_VAL_INT_64, 2, 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);
+	ret = iio_format_value(buf, IIO_VAL_INT_64, 2, values);
+	IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "0\n");
+
+	value = 4294967295;
+	values[0] = lower_32_bits(value);
+	values[1] = upper_32_bits(value);
+	ret = iio_format_value(buf, IIO_VAL_INT_64, 2, values);
+	IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "4294967295\n");
+
+	value = -4294967295;
+	values[0] = lower_32_bits(value);
+	values[1] = upper_32_bits(value);
+	ret = iio_format_value(buf, IIO_VAL_INT_64, 2, 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);
+	ret = iio_format_value(buf, IIO_VAL_INT_64, 2, 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);
+	ret = iio_format_value(buf, IIO_VAL_INT_64, 2, values);
+	IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-9223372036854775808\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),
 		KUNIT_CASE(iio_test_iio_format_value_fractional),
 		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),
 		{}
 };
 
-- 
2.17.1