diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 4 | ||||
| -rw-r--r-- | lib/tests/bitops_kunit.c | 63 |
2 files changed, 65 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index e4f8ba2f9f32..c59b12cf633a 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2660,8 +2660,8 @@ config BITOPS_KUNIT This option enables the KUnit test for the bitops library which provides functions for bit operations. - Note that this is a partial copy of the original test_bitops module. - For the full coverage, enable TEST_BITOPS. + Note that this is derived from the original test_bitops module. + For micro-benchmarks and compiler warning checks, enable TEST_BITOPS. If unsure, say N. diff --git a/lib/tests/bitops_kunit.c b/lib/tests/bitops_kunit.c index 5c47a1276061..7fd9d697f131 100644 --- a/lib/tests/bitops_kunit.c +++ b/lib/tests/bitops_kunit.c @@ -66,6 +66,66 @@ static void test_set_bit_clear_bit(struct kunit *test) KUNIT_EXPECT_EQ(test, bit_set, BITOPS_LENGTH); } +static void test_change_bit(struct kunit *test) +{ + const struct bitops_test_case *params = test->param_value; + DECLARE_BITMAP(bitmap, BITOPS_LENGTH); + int bit_set; + + bitmap_zero(bitmap, BITOPS_LENGTH); + + change_bit(params->nr, bitmap); + KUNIT_EXPECT_TRUE(test, test_bit(params->nr, bitmap)); + + change_bit(params->nr, bitmap); + KUNIT_EXPECT_FALSE(test, test_bit(params->nr, bitmap)); + + bit_set = find_first_bit(bitmap, BITOPS_LENGTH); + KUNIT_EXPECT_EQ(test, bit_set, BITOPS_LENGTH); +} + +static void test_test_and_set_bit_test_and_clear_bit(struct kunit *test) +{ + const struct bitops_test_case *params = test->param_value; + DECLARE_BITMAP(bitmap, BITOPS_LENGTH); + int bit_set; + + bitmap_zero(bitmap, BITOPS_LENGTH); + + KUNIT_EXPECT_FALSE(test, test_and_set_bit(params->nr, bitmap)); + KUNIT_EXPECT_TRUE(test, test_bit(params->nr, bitmap)); + + KUNIT_EXPECT_TRUE(test, test_and_set_bit(params->nr, bitmap)); + KUNIT_EXPECT_TRUE(test, test_bit(params->nr, bitmap)); + + KUNIT_EXPECT_TRUE(test, test_and_clear_bit(params->nr, bitmap)); + KUNIT_EXPECT_FALSE(test, test_bit(params->nr, bitmap)); + + KUNIT_EXPECT_FALSE(test, test_and_clear_bit(params->nr, bitmap)); + KUNIT_EXPECT_FALSE(test, test_bit(params->nr, bitmap)); + + bit_set = find_first_bit(bitmap, BITOPS_LENGTH); + KUNIT_EXPECT_EQ(test, bit_set, BITOPS_LENGTH); +} + +static void test_test_and_change_bit(struct kunit *test) +{ + const struct bitops_test_case *params = test->param_value; + DECLARE_BITMAP(bitmap, BITOPS_LENGTH); + int bit_set; + + bitmap_zero(bitmap, BITOPS_LENGTH); + + KUNIT_EXPECT_FALSE(test, test_and_change_bit(params->nr, bitmap)); + KUNIT_EXPECT_TRUE(test, test_bit(params->nr, bitmap)); + + KUNIT_EXPECT_TRUE(test, test_and_change_bit(params->nr, bitmap)); + KUNIT_EXPECT_FALSE(test, test_bit(params->nr, bitmap)); + + bit_set = find_first_bit(bitmap, BITOPS_LENGTH); + KUNIT_EXPECT_EQ(test, bit_set, BITOPS_LENGTH); +} + struct order_test_case { const char *str; const unsigned int count; @@ -121,6 +181,9 @@ static void test_get_count_order_long(struct kunit *test) static struct kunit_case bitops_test_cases[] = { KUNIT_CASE_PARAM(test_set_bit_clear_bit, bitops_gen_params), + KUNIT_CASE_PARAM(test_change_bit, bitops_gen_params), + KUNIT_CASE_PARAM(test_test_and_set_bit_test_and_clear_bit, bitops_gen_params), + KUNIT_CASE_PARAM(test_test_and_change_bit, bitops_gen_params), KUNIT_CASE_PARAM(test_get_count_order, order_gen_params), #ifdef CONFIG_64BIT KUNIT_CASE_PARAM(test_get_count_order_long, order_long_gen_params), |