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29
30 #include "base/iterator_adapter.h"
31
32 #include <algorithm>
33 #include <vector>
34
35 #include "base/port.h"
36 #include "testing/base/public/gunit.h"
37
38 namespace {
39
40 using mozc::AdapterBase;
41 using mozc::MakeIteratorAdapter;
42
43 struct TestStruct {
44 int field1;
45 int field2;
46 };
47
48 struct GetField1 : public AdapterBase<int> {
operator ()__anond81c73ae0111::GetField149 int operator()(const TestStruct *test) const {
50 return test->field1;
51 }
52 };
53
54 struct GetField2 : public AdapterBase<int> {
operator ()__anond81c73ae0111::GetField255 int operator()(const TestStruct *test) const {
56 return test->field2;
57 }
58 };
59
TEST(IteratorAdapterTest,LowerBound)60 TEST(IteratorAdapterTest, LowerBound) {
61 const TestStruct kTestData[] = {
62 { 0, 10 },
63 { 1, 11 },
64 { 2, 12 },
65 { 3, 13 },
66 { 3, 14 },
67 { 4, 14 },
68 };
69
70 EXPECT_EQ(kTestData + 3,
71 std::lower_bound(MakeIteratorAdapter(kTestData, GetField1()),
72 MakeIteratorAdapter(
73 kTestData + arraysize(kTestData), GetField1()),
74 3).base());
75
76 EXPECT_EQ(kTestData + arraysize(kTestData),
77 std::lower_bound(MakeIteratorAdapter(kTestData, GetField1()),
78 MakeIteratorAdapter(
79 kTestData + arraysize(kTestData), GetField1()),
80 12).base());
81
82 EXPECT_EQ(kTestData + 2,
83 std::lower_bound(MakeIteratorAdapter(kTestData, GetField2()),
84 MakeIteratorAdapter(
85 kTestData + arraysize(kTestData), GetField2()),
86 12).base());
87 }
88
TEST(IteratorAdapterTest,Count)89 TEST(IteratorAdapterTest, Count) {
90 const TestStruct kTestData[] = {
91 { 1, 10 },
92 { 1, 20 },
93 { 2, 30 },
94 { 2, 40 },
95 { 1, 50 },
96 };
97
98 EXPECT_EQ(
99 3,
100 std::count(
101 MakeIteratorAdapter(kTestData, GetField1()),
102 MakeIteratorAdapter(kTestData + arraysize(kTestData), GetField1()),
103 1));
104 EXPECT_EQ(
105 2,
106 std::count(
107 MakeIteratorAdapter(kTestData, GetField1()),
108 MakeIteratorAdapter(kTestData + arraysize(kTestData), GetField1()),
109 2));
110 }
111
112 } // namespace
113