unittests/ADT/ilistTest.cpp

   1 //===- llvm/unittest/ADT/APInt.cpp - APInt unit tests ---------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include <ostream>
  11 #include "gtest/gtest.h"
  12 #include "llvm/ADT/ilist.h"
  13 #include "llvm/ADT/ilist_node.h"
  14
  15 using namespace llvm;
  16
  17 namespace {
  18
  19 struct Node : ilist_node<Node> {
  20   int Value;
  21
  22   Node() {}
  23   Node(int _Value) : Value(_Value) {}
  24 };
  25
  26 TEST(ilistTest, Basic) {
  27   ilist<Node> List;
  28   List.push_back(Node(1));
  29   EXPECT_EQ(1, List.back().Value);
  30   EXPECT_EQ(0, List.back().getPrevNode());
  31   EXPECT_EQ(0, List.back().getNextNode());
  32
  33   List.push_back(Node(2));
  34   EXPECT_EQ(2, List.back().Value);
  35   EXPECT_EQ(2, List.front().getNextNode()->Value);
  36   EXPECT_EQ(1, List.back().getPrevNode()->Value);
  37
  38   const ilist<Node> &ConstList = List;
  39   EXPECT_EQ(2, ConstList.back().Value);
  40   EXPECT_EQ(2, ConstList.front().getNextNode()->Value);
  41   EXPECT_EQ(1, ConstList.back().getPrevNode()->Value);
  42 }
  43
  44 }