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lib: Move KUnit tests into tests/ subdirectory

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Following from the recent KUnit file naming discussion[1], move all
KUnit tests in lib/ into lib/tests/.

Link: https://lore.kernel.org/lkml/20240720165441.it.320-kees@kernel.org/ [1]
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: David Gow <davidgow@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Rae Moar <rmoar@google.com>
Link: https://lore.kernel.org/r/20241202075545.3648096-4-davidgow@google.com
Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Kees Cook
2024-12-02 15:55:40 +08:00
parent 84ec093f55
commit db6fe4d61e
29 changed files with 51 additions and 47 deletions
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110
lib/tests/test_bits.c Normal file
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@@ -0,0 +1,110 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Test cases for functions and macros in bits.h
*/
#include <kunit/test.h>
#include <linux/bits.h>
static void genmask_test(struct kunit *test)
{
KUNIT_EXPECT_EQ(test, 1ul, GENMASK(0, 0));
KUNIT_EXPECT_EQ(test, 3ul, GENMASK(1, 0));
KUNIT_EXPECT_EQ(test, 6ul, GENMASK(2, 1));
KUNIT_EXPECT_EQ(test, 0xFFFFFFFFul, GENMASK(31, 0));
#ifdef TEST_GENMASK_FAILURES
/* these should fail compilation */
GENMASK(0, 1);
GENMASK(0, 10);
GENMASK(9, 10);
#endif
}
static void genmask_ull_test(struct kunit *test)
{
KUNIT_EXPECT_EQ(test, 1ull, GENMASK_ULL(0, 0));
KUNIT_EXPECT_EQ(test, 3ull, GENMASK_ULL(1, 0));
KUNIT_EXPECT_EQ(test, 0x000000ffffe00000ull, GENMASK_ULL(39, 21));
KUNIT_EXPECT_EQ(test, 0xffffffffffffffffull, GENMASK_ULL(63, 0));
#ifdef TEST_GENMASK_FAILURES
/* these should fail compilation */
GENMASK_ULL(0, 1);
GENMASK_ULL(0, 10);
GENMASK_ULL(9, 10);
#endif
}
static void genmask_u128_test(struct kunit *test)
{
#ifdef CONFIG_ARCH_SUPPORTS_INT128
/* Below 64 bit masks */
KUNIT_EXPECT_EQ(test, 0x0000000000000001ull, GENMASK_U128(0, 0));
KUNIT_EXPECT_EQ(test, 0x0000000000000003ull, GENMASK_U128(1, 0));
KUNIT_EXPECT_EQ(test, 0x0000000000000006ull, GENMASK_U128(2, 1));
KUNIT_EXPECT_EQ(test, 0x00000000ffffffffull, GENMASK_U128(31, 0));
KUNIT_EXPECT_EQ(test, 0x000000ffffe00000ull, GENMASK_U128(39, 21));
KUNIT_EXPECT_EQ(test, 0xffffffffffffffffull, GENMASK_U128(63, 0));
/* Above 64 bit masks - only 64 bit portion can be validated once */
KUNIT_EXPECT_EQ(test, 0xffffffffffffffffull, GENMASK_U128(64, 0) >> 1);
KUNIT_EXPECT_EQ(test, 0x00000000ffffffffull, GENMASK_U128(81, 50) >> 50);
KUNIT_EXPECT_EQ(test, 0x0000000000ffffffull, GENMASK_U128(87, 64) >> 64);
KUNIT_EXPECT_EQ(test, 0x0000000000ff0000ull, GENMASK_U128(87, 80) >> 64);
KUNIT_EXPECT_EQ(test, 0xffffffffffffffffull, GENMASK_U128(127, 0) >> 64);
KUNIT_EXPECT_EQ(test, 0xffffffffffffffffull, (u64)GENMASK_U128(127, 0));
KUNIT_EXPECT_EQ(test, 0x0000000000000003ull, GENMASK_U128(127, 126) >> 126);
KUNIT_EXPECT_EQ(test, 0x0000000000000001ull, GENMASK_U128(127, 127) >> 127);
#ifdef TEST_GENMASK_FAILURES
/* these should fail compilation */
GENMASK_U128(0, 1);
GENMASK_U128(0, 10);
GENMASK_U128(9, 10);
#endif /* TEST_GENMASK_FAILURES */
#endif /* CONFIG_ARCH_SUPPORTS_INT128 */
}
static void genmask_input_check_test(struct kunit *test)
{
unsigned int x, y;
int z, w;
/* Unknown input */
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(x, 0));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(0, x));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(x, y));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(z, 0));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(0, z));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(z, w));
/* Valid input */
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(1, 1));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(39, 21));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(100, 80));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(110, 65));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(127, 0));
}
static struct kunit_case bits_test_cases[] = {
KUNIT_CASE(genmask_test),
KUNIT_CASE(genmask_ull_test),
KUNIT_CASE(genmask_u128_test),
KUNIT_CASE(genmask_input_check_test),
{}
};
static struct kunit_suite bits_test_suite = {
.name = "bits-test",
.test_cases = bits_test_cases,
};
kunit_test_suite(bits_test_suite);
MODULE_DESCRIPTION("Test cases for functions and macros in bits.h");
MODULE_LICENSE("GPL");