lib/is_signed_type_kunit.c

   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
  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");