1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17/*
18 * This is a minimal set of stubs to compile nvram_manager_test.cpp in
19 * environments where googletest is not available. The test status output isn't
20 * as pretty, but good enough to follow test progress and pinpoint test
21 * failures.
22 */
23
24extern "C" {
25#include <stdio.h>
26}  // extern "C"
27
28namespace testing {
29
30// Global test status.
31extern bool g_test_status;
32
33#define ASSERT_MSG(cond)                              \
34  if (!(cond)) {                                      \
35    testing::g_test_status = false;                   \
36    fprintf(stderr, "Assertion failed: " #cond "\n"); \
37    return;                                           \
38  }
39#define ASSERT_TRUE(cond) ASSERT_MSG(cond)
40#define ASSERT_EQ(expected, actual) ASSERT_MSG(expected == actual)
41
42#define EXPECT_MSG(cond)                                \
43  if (!(cond)) {                                        \
44    testing::g_test_status = false;                     \
45    fprintf(stderr, "Expectation failed: " #cond "\n"); \
46  }
47#define EXPECT_TRUE(cond) EXPECTED_MSG(cond)
48#define EXPECT_EQ(expected, actual) EXPECT_MSG((expected) == (actual))
49#define EXPECT_NE(expected, actual) EXPECT_MSG((expected) != (actual))
50
51// Test fixture base class.
52class Test {};
53
54namespace detail {
55
56// A polymorphic wrapper around test instances. This is the base class that
57// defines the common interface.
58class TestInstanceBase {
59 public:
60  virtual ~TestInstanceBase() = default;
61  virtual void Run() = 0;
62};
63
64// Test-specific subclass that holds an instance of the test.
65template<typename TestCase>
66class TestInstance : public TestInstanceBase  {
67 public:
68  ~TestInstance() override = default;
69
70  static TestInstanceBase* Create() {
71    return new TestInstance<TestCase>;
72  }
73
74 private:
75  void Run() override {
76    test_.Run();
77  }
78
79  TestCase test_;
80};
81
82struct TestDeclarationBase;
83using CreateTestInstanceFunction = TestInstanceBase*(void);
84
85// |TestRegistry| keeps track of all registered tests.
86class TestRegistry {
87 public:
88  static TestRegistry* instance() { return &g_instance; }
89
90  void RunAllTests();
91  void Register(TestDeclarationBase* test_declaration);
92
93 private:
94  TestDeclarationBase* tests_ = nullptr;
95
96  static TestRegistry g_instance;
97};
98
99struct TestDeclarationBase {
100  TestDeclarationBase(const char* name,
101                      CreateTestInstanceFunction* create_function)
102      : name(name), create_function(create_function) {
103    TestRegistry::instance()->Register(this);
104  }
105
106  const char* name;
107  CreateTestInstanceFunction* create_function;
108  TestDeclarationBase* next;
109};
110
111}  // namespace detail
112
113// Registers |TestCase| with |TestRegistry|.
114template <typename TestCase>
115struct TestDeclaration : public detail::TestDeclarationBase {
116  TestDeclaration(const char* name)
117      : TestDeclarationBase(name, &detail::TestInstance<TestCase>::Create) {}
118};
119
120#define TEST_F(fixture, name)                       \
121  class fixture##_##name : public fixture {         \
122   public:                                          \
123    void Run();                                     \
124  };                                                \
125  static testing::TestDeclaration<fixture##_##name> \
126      g_##fixture##_##name##_declaration(#name);    \
127  void fixture##_##name::Run()
128
129}  // namespace testing
130