1 // SPDX-License-Identifier: GPL-2.0 OR MIT
2 /*
3 * ./tools/testing/kunit/kunit.py run is_signed_type [--raw_output]
4 */
5 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
6
7 #include <kunit/test.h>
8 #include <linux/compiler.h>
9
10 enum unsigned_enum {
11 constant_a = 3,
12 };
13
14 enum signed_enum {
15 constant_b = -1,
16 constant_c = 2,
17 };
18
is_signed_type_test(struct kunit * test)19 static void is_signed_type_test(struct kunit *test)
20 {
21 KUNIT_EXPECT_EQ(test, is_signed_type(bool), false);
22 KUNIT_EXPECT_EQ(test, is_signed_type(signed char), true);
23 KUNIT_EXPECT_EQ(test, is_signed_type(unsigned char), false);
24 #ifdef __CHAR_UNSIGNED__
25 KUNIT_EXPECT_EQ(test, is_signed_type(char), false);
26 #else
27 KUNIT_EXPECT_EQ(test, is_signed_type(char), true);
28 #endif
29 KUNIT_EXPECT_EQ(test, is_signed_type(int), true);
30 KUNIT_EXPECT_EQ(test, is_signed_type(unsigned int), false);
31 KUNIT_EXPECT_EQ(test, is_signed_type(long), true);
32 KUNIT_EXPECT_EQ(test, is_signed_type(unsigned long), false);
33 KUNIT_EXPECT_EQ(test, is_signed_type(long long), true);
34 KUNIT_EXPECT_EQ(test, is_signed_type(unsigned long long), false);
35 KUNIT_EXPECT_EQ(test, is_signed_type(enum unsigned_enum), false);
36 KUNIT_EXPECT_EQ(test, is_signed_type(enum signed_enum), true);
37 KUNIT_EXPECT_EQ(test, is_signed_type(void *), false);
38 KUNIT_EXPECT_EQ(test, is_signed_type(const char *), false);
39 }
40
41 static struct kunit_case is_signed_type_test_cases[] = {
42 KUNIT_CASE(is_signed_type_test),
43 {}
44 };
45
46 static struct kunit_suite is_signed_type_test_suite = {
47 .name = "is_signed_type",
48 .test_cases = is_signed_type_test_cases,
49 };
50
51 kunit_test_suite(is_signed_type_test_suite);
52
53 MODULE_LICENSE("Dual MIT/GPL");
54