xref: /openbmc/linux/lib/kunit/assert.c (revision be122522)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Assertion and expectation serialization API.
4  *
5  * Copyright (C) 2019, Google LLC.
6  * Author: Brendan Higgins <brendanhiggins@google.com>
7  */
8 #include <kunit/assert.h>
9 
10 void kunit_base_assert_format(const struct kunit_assert *assert,
11 			      struct string_stream *stream)
12 {
13 	const char *expect_or_assert = NULL;
14 
15 	switch (assert->type) {
16 	case KUNIT_EXPECTATION:
17 		expect_or_assert = "EXPECTATION";
18 		break;
19 	case KUNIT_ASSERTION:
20 		expect_or_assert = "ASSERTION";
21 		break;
22 	}
23 
24 	string_stream_add(stream, "%s FAILED at %s:%d\n",
25 			 expect_or_assert, assert->file, assert->line);
26 }
27 
28 void kunit_assert_print_msg(const struct kunit_assert *assert,
29 			    struct string_stream *stream)
30 {
31 	if (assert->message.fmt)
32 		string_stream_add(stream, "\n%pV", &assert->message);
33 }
34 
35 void kunit_fail_assert_format(const struct kunit_assert *assert,
36 			      struct string_stream *stream)
37 {
38 	kunit_base_assert_format(assert, stream);
39 	string_stream_add(stream, "%pV", &assert->message);
40 }
41 
42 void kunit_unary_assert_format(const struct kunit_assert *assert,
43 			       struct string_stream *stream)
44 {
45 	struct kunit_unary_assert *unary_assert = container_of(
46 			assert, struct kunit_unary_assert, assert);
47 
48 	kunit_base_assert_format(assert, stream);
49 	if (unary_assert->expected_true)
50 		string_stream_add(stream,
51 				 "\tExpected %s to be true, but is false\n",
52 				 unary_assert->condition);
53 	else
54 		string_stream_add(stream,
55 				 "\tExpected %s to be false, but is true\n",
56 				 unary_assert->condition);
57 	kunit_assert_print_msg(assert, stream);
58 }
59 
60 void kunit_ptr_not_err_assert_format(const struct kunit_assert *assert,
61 				     struct string_stream *stream)
62 {
63 	struct kunit_ptr_not_err_assert *ptr_assert = container_of(
64 			assert, struct kunit_ptr_not_err_assert, assert);
65 
66 	kunit_base_assert_format(assert, stream);
67 	if (!ptr_assert->value) {
68 		string_stream_add(stream,
69 				 "\tExpected %s is not null, but is\n",
70 				 ptr_assert->text);
71 	} else if (IS_ERR(ptr_assert->value)) {
72 		string_stream_add(stream,
73 				 "\tExpected %s is not error, but is: %ld\n",
74 				 ptr_assert->text,
75 				 PTR_ERR(ptr_assert->value));
76 	}
77 	kunit_assert_print_msg(assert, stream);
78 }
79 
80 void kunit_binary_assert_format(const struct kunit_assert *assert,
81 				struct string_stream *stream)
82 {
83 	struct kunit_binary_assert *binary_assert = container_of(
84 			assert, struct kunit_binary_assert, assert);
85 
86 	kunit_base_assert_format(assert, stream);
87 	string_stream_add(stream,
88 			 "\tExpected %s %s %s, but\n",
89 			 binary_assert->left_text,
90 			 binary_assert->operation,
91 			 binary_assert->right_text);
92 	string_stream_add(stream, "\t\t%s == %lld\n",
93 			 binary_assert->left_text,
94 			 binary_assert->left_value);
95 	string_stream_add(stream, "\t\t%s == %lld",
96 			 binary_assert->right_text,
97 			 binary_assert->right_value);
98 	kunit_assert_print_msg(assert, stream);
99 }
100 
101 void kunit_binary_ptr_assert_format(const struct kunit_assert *assert,
102 				    struct string_stream *stream)
103 {
104 	struct kunit_binary_ptr_assert *binary_assert = container_of(
105 			assert, struct kunit_binary_ptr_assert, assert);
106 
107 	kunit_base_assert_format(assert, stream);
108 	string_stream_add(stream,
109 			 "\tExpected %s %s %s, but\n",
110 			 binary_assert->left_text,
111 			 binary_assert->operation,
112 			 binary_assert->right_text);
113 	string_stream_add(stream, "\t\t%s == %pK\n",
114 			 binary_assert->left_text,
115 			 binary_assert->left_value);
116 	string_stream_add(stream, "\t\t%s == %pK",
117 			 binary_assert->right_text,
118 			 binary_assert->right_value);
119 	kunit_assert_print_msg(assert, stream);
120 }
121 
122 void kunit_binary_str_assert_format(const struct kunit_assert *assert,
123 				    struct string_stream *stream)
124 {
125 	struct kunit_binary_str_assert *binary_assert = container_of(
126 			assert, struct kunit_binary_str_assert, assert);
127 
128 	kunit_base_assert_format(assert, stream);
129 	string_stream_add(stream,
130 			 "\tExpected %s %s %s, but\n",
131 			 binary_assert->left_text,
132 			 binary_assert->operation,
133 			 binary_assert->right_text);
134 	string_stream_add(stream, "\t\t%s == %s\n",
135 			 binary_assert->left_text,
136 			 binary_assert->left_value);
137 	string_stream_add(stream, "\t\t%s == %s",
138 			 binary_assert->right_text,
139 			 binary_assert->right_value);
140 	kunit_assert_print_msg(assert, stream);
141 }
142