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llvm-mirror/unittests/ADT/MapVectorTest.cpp

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C++

//===- unittest/ADT/MapVectorTest.cpp - MapVector unit tests ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "llvm/ADT/MapVector.h"
#include <utility>
using namespace llvm;
TEST(MapVectorTest, insert_pop) {
MapVector<int, int> MV;
std::pair<MapVector<int, int>::iterator, bool> R;
R = MV.insert(std::make_pair(1, 2));
ASSERT_EQ(R.first, MV.begin());
EXPECT_EQ(R.first->first, 1);
EXPECT_EQ(R.first->second, 2);
EXPECT_TRUE(R.second);
R = MV.insert(std::make_pair(1, 3));
ASSERT_EQ(R.first, MV.begin());
EXPECT_EQ(R.first->first, 1);
EXPECT_EQ(R.first->second, 2);
EXPECT_FALSE(R.second);
R = MV.insert(std::make_pair(4, 5));
ASSERT_NE(R.first, MV.end());
EXPECT_EQ(R.first->first, 4);
EXPECT_EQ(R.first->second, 5);
EXPECT_TRUE(R.second);
EXPECT_EQ(MV.size(), 2u);
EXPECT_EQ(MV[1], 2);
EXPECT_EQ(MV[4], 5);
MV.pop_back();
EXPECT_EQ(MV.size(), 1u);
EXPECT_EQ(MV[1], 2);
R = MV.insert(std::make_pair(4, 7));
ASSERT_NE(R.first, MV.end());
EXPECT_EQ(R.first->first, 4);
EXPECT_EQ(R.first->second, 7);
EXPECT_TRUE(R.second);
EXPECT_EQ(MV.size(), 2u);
EXPECT_EQ(MV[1], 2);
EXPECT_EQ(MV[4], 7);
}