1 //===- RangeAdapterTest.cpp - Unit tests for range adapters --------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/ADT/iterator_range.h"
11 #include "llvm/ADT/STLExtras.h"
12 #include "gtest/gtest.h"
22 // A wrapper around vector which exposes rbegin(), rend().
23 class ReverseOnlyVector {
27 ReverseOnlyVector(std::initializer_list<int> list) : Vec(list) {}
29 typedef std::vector<int>::reverse_iterator reverse_iterator;
30 reverse_iterator rbegin() { return Vec.rbegin(); }
31 reverse_iterator rend() { return Vec.rend(); }
34 // A wrapper around vector which exposes begin(), end(), rbegin() and rend().
35 // begin() and end() don't have implementations as this ensures that we will
36 // get a linker error if reverse() chooses begin()/end() over rbegin(), rend().
37 class BidirectionalVector {
41 BidirectionalVector(std::initializer_list<int> list) : Vec(list) {}
43 typedef std::vector<int>::iterator iterator;
47 typedef std::vector<int>::reverse_iterator reverse_iterator;
48 reverse_iterator rbegin() { return Vec.rbegin(); }
49 reverse_iterator rend() { return Vec.rend(); }
52 template <typename R> void TestRev(const R &r) {
55 EXPECT_EQ(i, counter--);
59 template <typename T> class RangeAdapterLValueTest : public ::testing::Test {};
61 typedef ::testing::Types<std::vector<int>, std::list<int>, int[4]>
62 RangeAdapterLValueTestTypes;
63 TYPED_TEST_CASE(RangeAdapterLValueTest, RangeAdapterLValueTestTypes);
65 TYPED_TEST(RangeAdapterLValueTest, TrivialOperation) {
66 TypeParam v = {0, 1, 2, 3};
69 const TypeParam c = {0, 1, 2, 3};
73 template <typename T> struct RangeAdapterRValueTest : testing::Test {};
75 typedef ::testing::Types<std::vector<int>, std::list<int>, ReverseOnlyVector,
76 BidirectionalVector> RangeAdapterRValueTestTypes;
77 TYPED_TEST_CASE(RangeAdapterRValueTest, RangeAdapterRValueTestTypes);
79 TYPED_TEST(RangeAdapterRValueTest, TrivialOperation) {
80 TestRev(reverse(TypeParam({0, 1, 2, 3})));
83 } // anonymous namespace