lib/kunit/assert.c

   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 #include "string-stream.h"
  11
  12 void kunit_base_assert_format(const struct kunit_assert *assert,
  13                               struct string_stream *stream)
  14 {
  15         const char *expect_or_assert = NULL;
  16
  17         switch (assert->type) {
  18         case KUNIT_EXPECTATION:
  19                 expect_or_assert = "EXPECTATION";
  20                 break;
  21         case KUNIT_ASSERTION:
  22                 expect_or_assert = "ASSERTION";
  23                 break;
  24         }
  25
  26         string_stream_add(stream, "%s FAILED at %s:%d\n",
  27                          expect_or_assert, assert->file, assert->line);
  28 }
  29 EXPORT_SYMBOL_GPL(kunit_base_assert_format);
  30
  31 void kunit_assert_print_msg(const struct kunit_assert *assert,
  32                             struct string_stream *stream)
  33 {
  34         if (assert->message.fmt)
  35                 string_stream_add(stream, "\n%pV", &assert->message);
  36 }
  37 EXPORT_SYMBOL_GPL(kunit_assert_print_msg);
  38
  39 void kunit_fail_assert_format(const struct kunit_assert *assert,
  40                               struct string_stream *stream)
  41 {
  42         kunit_base_assert_format(assert, stream);
  43         string_stream_add(stream, "%pV", &assert->message);
  44 }
  45 EXPORT_SYMBOL_GPL(kunit_fail_assert_format);
  46
  47 void kunit_unary_assert_format(const struct kunit_assert *assert,
  48                                struct string_stream *stream)
  49 {
  50         struct kunit_unary_assert *unary_assert = container_of(
  51                         assert, struct kunit_unary_assert, assert);
  52
  53         kunit_base_assert_format(assert, stream);
  54         if (unary_assert->expected_true)
  55                 string_stream_add(stream,
  56                                  "\tExpected %s to be true, but is false\n",
  57                                  unary_assert->condition);
  58         else
  59                 string_stream_add(stream,
  60                                  "\tExpected %s to be false, but is true\n",
  61                                  unary_assert->condition);
  62         kunit_assert_print_msg(assert, stream);
  63 }
  64 EXPORT_SYMBOL_GPL(kunit_unary_assert_format);
  65
  66 void kunit_ptr_not_err_assert_format(const struct kunit_assert *assert,
  67                                      struct string_stream *stream)
  68 {
  69         struct kunit_ptr_not_err_assert *ptr_assert = container_of(
  70                         assert, struct kunit_ptr_not_err_assert, assert);
  71
  72         kunit_base_assert_format(assert, stream);
  73         if (!ptr_assert->value) {
  74                 string_stream_add(stream,
  75                                  "\tExpected %s is not null, but is\n",
  76                                  ptr_assert->text);
  77         } else if (IS_ERR(ptr_assert->value)) {
  78                 string_stream_add(stream,
  79                                  "\tExpected %s is not error, but is: %ld\n",
  80                                  ptr_assert->text,
  81                                  PTR_ERR(ptr_assert->value));
  82         }
  83         kunit_assert_print_msg(assert, stream);
  84 }
  85 EXPORT_SYMBOL_GPL(kunit_ptr_not_err_assert_format);
  86
  87 void kunit_binary_assert_format(const struct kunit_assert *assert,
  88                                 struct string_stream *stream)
  89 {
  90         struct kunit_binary_assert *binary_assert = container_of(
  91                         assert, struct kunit_binary_assert, assert);
  92
  93         kunit_base_assert_format(assert, stream);
  94         string_stream_add(stream,
  95                          "\tExpected %s %s %s, but\n",
  96                          binary_assert->left_text,
  97                          binary_assert->operation,
  98                          binary_assert->right_text);
  99         string_stream_add(stream, "\t\t%s == %lld\n",
 100                          binary_assert->left_text,
 101                          binary_assert->left_value);
 102         string_stream_add(stream, "\t\t%s == %lld",
 103                          binary_assert->right_text,
 104                          binary_assert->right_value);
 105         kunit_assert_print_msg(assert, stream);
 106 }
 107 EXPORT_SYMBOL_GPL(kunit_binary_assert_format);
 108
 109 void kunit_binary_ptr_assert_format(const struct kunit_assert *assert,
 110                                     struct string_stream *stream)
 111 {
 112         struct kunit_binary_ptr_assert *binary_assert = container_of(
 113                         assert, struct kunit_binary_ptr_assert, assert);
 114
 115         kunit_base_assert_format(assert, stream);
 116         string_stream_add(stream,
 117                          "\tExpected %s %s %s, but\n",
 118                          binary_assert->left_text,
 119                          binary_assert->operation,
 120                          binary_assert->right_text);
 121         string_stream_add(stream, "\t\t%s == %pK\n",
 122                          binary_assert->left_text,
 123                          binary_assert->left_value);
 124         string_stream_add(stream, "\t\t%s == %pK",
 125                          binary_assert->right_text,
 126                          binary_assert->right_value);
 127         kunit_assert_print_msg(assert, stream);
 128 }
 129 EXPORT_SYMBOL_GPL(kunit_binary_ptr_assert_format);
 130
 131 void kunit_binary_str_assert_format(const struct kunit_assert *assert,
 132                                     struct string_stream *stream)
 133 {
 134         struct kunit_binary_str_assert *binary_assert = container_of(
 135                         assert, struct kunit_binary_str_assert, assert);
 136
 137         kunit_base_assert_format(assert, stream);
 138         string_stream_add(stream,
 139                          "\tExpected %s %s %s, but\n",
 140                          binary_assert->left_text,
 141                          binary_assert->operation,
 142                          binary_assert->right_text);
 143         string_stream_add(stream, "\t\t%s == %s\n",
 144                          binary_assert->left_text,
 145                          binary_assert->left_value);
 146         string_stream_add(stream, "\t\t%s == %s",
 147                          binary_assert->right_text,
 148                          binary_assert->right_value);
 149         kunit_assert_print_msg(assert, stream);
 150 }
 151 EXPORT_SYMBOL_GPL(kunit_binary_str_assert_format);