1 // SPDX-License-Identifier: GPL-2.0 1
2
3 #include <kunit/test.h>
4
5 #include <linux/rational.h>
6
7 struct rational_test_param {
8 unsigned long num, den;
9 unsigned long max_num, max_den;
10 unsigned long exp_num, exp_den;
11
12 const char *name;
13 };
14
15 static const struct rational_test_param test_p
16 { 1230, 10, 100, 20, 100, 1
17 { 34567,100, 120, 20, 120, 1
18 { 1, 30, 100, 10, 0, 1,
19 { 1, 19, 100, 10, 1, 10,
20 { 27,32, 16, 16, 11, 13
21 { 1155, 7735, 255, 255, 33, 22
22 { 87, 32, 70, 32, 68, 25
23 { 14533, 4626, 15000, 2400, 7433,
24 };
25
26 static void get_desc(const struct rational_tes
27 {
28 strscpy(desc, param->name, KUNIT_PARAM
29 }
30
31 /* Creates function rational_gen_params */
32 KUNIT_ARRAY_PARAM(rational, test_parameters, g
33
34 static void rational_test(struct kunit *test)
35 {
36 const struct rational_test_param *para
37 unsigned long n = 0, d = 0;
38
39 rational_best_approximation(param->num
40 KUNIT_EXPECT_EQ(test, n, param->exp_nu
41 KUNIT_EXPECT_EQ(test, d, param->exp_de
42 }
43
44 static struct kunit_case rational_test_cases[]
45 KUNIT_CASE_PARAM(rational_test, ration
46 {}
47 };
48
49 static struct kunit_suite rational_test_suite
50 .name = "rational",
51 .test_cases = rational_test_cases,
52 };
53
54 kunit_test_suites(&rational_test_suite);
55
56 MODULE_DESCRIPTION("Rational fractions unit te
57 MODULE_LICENSE("GPL v2");
58
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