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#include "base/iterator_adapter.h"
#include <algorithm>
#include <vector>
#include "base/port.h"
#include "testing/base/public/gunit.h"
namespace {
using mozc::AdapterBase;
using mozc::MakeIteratorAdapter;
struct TestStruct {
int field1;
int field2;
};
struct GetField1 : public AdapterBase<int> {
int operator()(const TestStruct *test) const { return test->field1; }
};
struct GetField2 : public AdapterBase<int> {
int operator()(const TestStruct *test) const { return test->field2; }
};
TEST(IteratorAdapterTest, LowerBound) {
const TestStruct kTestData[] = {
{0, 10}, {1, 11}, {2, 12}, {3, 13}, {3, 14}, {4, 14},
};
EXPECT_EQ(
kTestData + 3,
std::lower_bound(
MakeIteratorAdapter(kTestData, GetField1()),
MakeIteratorAdapter(kTestData + arraysize(kTestData), GetField1()), 3)
.base());
EXPECT_EQ(kTestData + arraysize(kTestData),
std::lower_bound(MakeIteratorAdapter(kTestData, GetField1()),
MakeIteratorAdapter(
kTestData + arraysize(kTestData), GetField1()),
12)
.base());
EXPECT_EQ(kTestData + 2,
std::lower_bound(MakeIteratorAdapter(kTestData, GetField2()),
MakeIteratorAdapter(
kTestData + arraysize(kTestData), GetField2()),
12)
.base());
}
TEST(IteratorAdapterTest, Count) {
const TestStruct kTestData[] = {
{1, 10}, {1, 20}, {2, 30}, {2, 40}, {1, 50},
};
EXPECT_EQ(3, std::count(MakeIteratorAdapter(kTestData, GetField1()),
MakeIteratorAdapter(kTestData + arraysize(kTestData),
GetField1()),
1));
EXPECT_EQ(2, std::count(MakeIteratorAdapter(kTestData, GetField1()),
MakeIteratorAdapter(kTestData + arraysize(kTestData),
GetField1()),
2));
}
} // namespace