1// SPDX-License-Identifier: GPL-2.0+
2
3/*
4 *  HID driver for UC-Logic devices not fully compliant with HID standard
5 *
6 *  Copyright (c) 2022 Jos�� Exp��sito <jose.exposito89@gmail.com>
7 */
8
9#include <kunit/test.h>
10#include "./hid-uclogic-params.h"
11
12#define MAX_EVENT_SIZE 12
13
14struct uclogic_raw_event_hook_test {
15	u8 event[MAX_EVENT_SIZE];
16	size_t size;
17	bool expected;
18};
19
20static struct uclogic_raw_event_hook_test hook_events[] = {
21	{
22		.event = { 0xA1, 0xB2, 0xC3, 0xD4 },
23		.size = 4,
24	},
25	{
26		.event = { 0x1F, 0x2E, 0x3D, 0x4C, 0x5B, 0x6A },
27		.size = 6,
28	},
29};
30
31static struct uclogic_raw_event_hook_test test_events[] = {
32	{
33		.event = { 0xA1, 0xB2, 0xC3, 0xD4 },
34		.size = 4,
35		.expected = true,
36	},
37	{
38		.event = { 0x1F, 0x2E, 0x3D, 0x4C, 0x5B, 0x6A },
39		.size = 6,
40		.expected = true,
41	},
42	{
43		.event = { 0xA1, 0xB2, 0xC3 },
44		.size = 3,
45		.expected = false,
46	},
47	{
48		.event = { 0xA1, 0xB2, 0xC3, 0xD4, 0x00 },
49		.size = 5,
50		.expected = false,
51	},
52	{
53		.event = { 0x2E, 0x3D, 0x4C, 0x5B, 0x6A, 0x1F },
54		.size = 6,
55		.expected = false,
56	},
57};
58
59static void fake_work(struct work_struct *work)
60{
61
62}
63
64static void hid_test_uclogic_exec_event_hook_test(struct kunit *test)
65{
66	struct uclogic_params p = {0, };
67	struct uclogic_raw_event_hook *filter;
68	bool res;
69	int n;
70
71	/* Initialize the list of events to hook */
72	p.event_hooks = kunit_kzalloc(test, sizeof(*p.event_hooks), GFP_KERNEL);
73	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p.event_hooks);
74	INIT_LIST_HEAD(&p.event_hooks->list);
75
76	for (n = 0; n < ARRAY_SIZE(hook_events); n++) {
77		filter = kunit_kzalloc(test, sizeof(*filter), GFP_KERNEL);
78		KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filter);
79
80		filter->size = hook_events[n].size;
81		filter->event = kunit_kzalloc(test, filter->size, GFP_KERNEL);
82		KUNIT_ASSERT_NOT_ERR_OR_NULL(test, filter->event);
83		memcpy(filter->event, &hook_events[n].event[0], filter->size);
84
85		INIT_WORK(&filter->work, fake_work);
86
87		list_add_tail(&filter->list, &p.event_hooks->list);
88	}
89
90	/* Test uclogic_exec_event_hook() */
91	for (n = 0; n < ARRAY_SIZE(test_events); n++) {
92		res = uclogic_exec_event_hook(&p, &test_events[n].event[0],
93					      test_events[n].size);
94		KUNIT_ASSERT_EQ(test, res, test_events[n].expected);
95	}
96}
97
98static struct kunit_case hid_uclogic_core_test_cases[] = {
99	KUNIT_CASE(hid_test_uclogic_exec_event_hook_test),
100	{}
101};
102
103static struct kunit_suite hid_uclogic_core_test_suite = {
104	.name = "hid_uclogic_core_test",
105	.test_cases = hid_uclogic_core_test_cases,
106};
107
108kunit_test_suite(hid_uclogic_core_test_suite);
109
110MODULE_DESCRIPTION("KUnit tests for the UC-Logic driver");
111MODULE_LICENSE("GPL");
112MODULE_AUTHOR("Jos�� Exp��sito <jose.exposito89@gmail.com>");
113