1 /* Copyright (c) 2011, 2021, Oracle and/or its affiliates.
2
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License, version 2.0,
5 as published by the Free Software Foundation.
6
7 This program is also distributed with certain software (including
8 but not limited to OpenSSL) that is licensed under separate terms,
9 as designated in a particular file or component or in included license
10 documentation. The authors of MySQL hereby grant you an additional
11 permission to link the program and your derivative works with the
12 separately licensed software that they have included with MySQL.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License, version 2.0, for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
22
23 // First include (the generated) my_config.h, to get correct platform defines.
24 #include "my_config.h"
25 #include <gtest/gtest.h>
26
27 #include "sql_plist.h"
28 #include "test_utils.h"
29
30 namespace sql_plist_unittest {
31
32 // A simple helper function to insert values into a List.
33 template <class T, int size, class L>
insert_values(T (& array)[size],L * list)34 void insert_values(T (&array)[size], L *list)
35 {
36 uint ix, elements= list->elements();
37 for (ix= 0; ix < size; ++ix)
38 list->push_back(&array[ix]);
39 EXPECT_EQ(ix + elements, list->elements());
40 }
41
42 /*
43 The fixture for testing the MySQL List and List_iterator classes.
44 A fresh instance of this class will be created for each of the
45 TEST_F functions below.
46 */
47 class IPListTest : public ::testing::Test
48 {
49 protected:
IPListTest()50 IPListTest()
51 : m_int_list(), m_int_list_iter(m_int_list)
52 {
53 }
54
55 public:
56 template<typename V>
57 struct I_P_ListTestValue
58 {
59 V value;
I_P_ListTestValuesql_plist_unittest::IPListTest::I_P_ListTestValue60 I_P_ListTestValue(V val) : value(val) {}
operator ==sql_plist_unittest::IPListTest::I_P_ListTestValue61 bool operator == (const I_P_ListTestValue<V> &obj) const
62 { return value == obj.value; }
63 struct I_P_ListTestValue<V> *next;
64 struct I_P_ListTestValue<V> **prev;
65 };
66
67 protected:
68 template<typename V>
69 struct I_P_ListCountedPushBack
70 {
71 typedef I_P_ListTestValue<V> Value;
72 typedef I_P_List<Value,
73 I_P_List_adapter<Value, &Value::next, &Value::prev>,
74 I_P_List_counter,
75 I_P_List_fast_push_back<Value>
76 > Type;
77 };
78
79 I_P_ListCountedPushBack<int>::Type m_int_list;
80 I_P_ListCountedPushBack<int>::Type::Iterator m_int_list_iter;
81
82 private:
83 // Declares (but does not define) copy constructor and assignment operator.
84 GTEST_DISALLOW_COPY_AND_ASSIGN_(IPListTest);
85 };
86
87
88 // Allow construction of test messages via the << operator.
89 template<typename T>
operator <<(std::ostream & s,const IPListTest::I_P_ListTestValue<T> & v)90 std::ostream &operator<< (std::ostream &s,
91 const IPListTest::I_P_ListTestValue<T> &v)
92 {
93 return s << v.value;
94 }
95
96
97 // Tests that we can construct and destruct lists.
TEST_F(IPListTest,ConstructAndDestruct)98 TEST_F(IPListTest, ConstructAndDestruct)
99 {
100 EXPECT_TRUE(m_int_list.is_empty());
101 I_P_ListCountedPushBack<int>::Type *p_int_list;
102 p_int_list= new I_P_ListCountedPushBack<int>::Type;
103 EXPECT_TRUE(p_int_list->is_empty());
104 delete p_int_list;
105 }
106
107
108 // Tests basic operations push and remove.
TEST_F(IPListTest,BasicOperations)109 TEST_F(IPListTest, BasicOperations)
110 {
111 I_P_ListTestValue<int> v1(1), v2(2), v3(3);
112 m_int_list.push_front(&v1);
113 m_int_list.insert_after(&v1, &v2);
114 m_int_list.push_back(&v3);
115 EXPECT_FALSE(m_int_list.is_empty());
116 EXPECT_EQ(3U, m_int_list.elements());
117
118 EXPECT_EQ(&v1, m_int_list.front());
119 m_int_list.remove(&v1);
120 EXPECT_EQ(&v2, m_int_list.front());
121 m_int_list.remove(&v2);
122 EXPECT_EQ(&v3, m_int_list.front());
123 m_int_list.remove(&v3);
124 EXPECT_TRUE(m_int_list.is_empty()) << "The list should be empty now!";
125 }
126
127
128 // Tests that we can iterate over values.
TEST_F(IPListTest,Iterate)129 TEST_F(IPListTest, Iterate)
130 {
131 I_P_ListTestValue<int> values[]= {3, 2, 1};
132 insert_values(values, &m_int_list);
133 m_int_list_iter.init(m_int_list);
134 for (int ix= 0; ix < array_size(values); ++ix)
135 {
136 EXPECT_EQ(values[ix], *m_int_list_iter++);
137 }
138 m_int_list_iter.init(m_int_list);
139 I_P_ListTestValue<int> *value;
140 int value_number= 0;
141 while ((value= m_int_list_iter++))
142 {
143 EXPECT_EQ(values[value_number++], value->value);
144 }
145 }
146
147 } // namespace
148