1 //===- STLForwardCompatTest.cpp - Unit tests for STLForwardCompat ---------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "llvm/ADT/STLForwardCompat.h"
10 #include "gtest/gtest.h"
11
12 namespace {
13
TEST(STLForwardCompatTest,NegationTest)14 TEST(STLForwardCompatTest, NegationTest) {
15 EXPECT_TRUE((llvm::negation<std::false_type>::value));
16 EXPECT_FALSE((llvm::negation<std::true_type>::value));
17 }
18
19 struct incomplete_type;
20
TEST(STLForwardCompatTest,ConjunctionTest)21 TEST(STLForwardCompatTest, ConjunctionTest) {
22 EXPECT_TRUE((llvm::conjunction<>::value));
23 EXPECT_FALSE((llvm::conjunction<std::false_type>::value));
24 EXPECT_TRUE((llvm::conjunction<std::true_type>::value));
25 EXPECT_FALSE((llvm::conjunction<std::false_type, incomplete_type>::value));
26 EXPECT_FALSE((llvm::conjunction<std::false_type, std::true_type>::value));
27 EXPECT_FALSE((llvm::conjunction<std::true_type, std::false_type>::value));
28 EXPECT_TRUE((llvm::conjunction<std::true_type, std::true_type>::value));
29 EXPECT_TRUE((llvm::conjunction<std::true_type, std::true_type,
30 std::true_type>::value));
31 }
32
TEST(STLForwardCompatTest,DisjunctionTest)33 TEST(STLForwardCompatTest, DisjunctionTest) {
34 EXPECT_FALSE((llvm::disjunction<>::value));
35 EXPECT_FALSE((llvm::disjunction<std::false_type>::value));
36 EXPECT_TRUE((llvm::disjunction<std::true_type>::value));
37 EXPECT_TRUE((llvm::disjunction<std::true_type, incomplete_type>::value));
38 EXPECT_TRUE((llvm::disjunction<std::false_type, std::true_type>::value));
39 EXPECT_TRUE((llvm::disjunction<std::true_type, std::false_type>::value));
40 EXPECT_TRUE((llvm::disjunction<std::true_type, std::true_type>::value));
41 EXPECT_TRUE((llvm::disjunction<std::true_type, std::true_type,
42 std::true_type>::value));
43 }
44
45 template <typename T>
46 class STLForwardCompatRemoveCVRefTest : public ::testing::Test {};
47
48 using STLForwardCompatRemoveCVRefTestTypes = ::testing::Types<
49 // clang-format off
50 std::pair<int, int>,
51 std::pair<int &, int>,
52 std::pair<const int, int>,
53 std::pair<volatile int, int>,
54 std::pair<const volatile int &, int>,
55 std::pair<int *, int *>,
56 std::pair<int *const, int *>,
57 std::pair<const int *, const int *>,
58 std::pair<int *&, int *>
59 // clang-format on
60 >;
61
62 TYPED_TEST_SUITE(STLForwardCompatRemoveCVRefTest,
63 STLForwardCompatRemoveCVRefTestTypes, );
64
TYPED_TEST(STLForwardCompatRemoveCVRefTest,RemoveCVRef)65 TYPED_TEST(STLForwardCompatRemoveCVRefTest, RemoveCVRef) {
66 using From = typename TypeParam::first_type;
67 using To = typename TypeParam::second_type;
68 EXPECT_TRUE(
69 (std::is_same<typename llvm::remove_cvref<From>::type, To>::value));
70 }
71
TYPED_TEST(STLForwardCompatRemoveCVRefTest,RemoveCVRefT)72 TYPED_TEST(STLForwardCompatRemoveCVRefTest, RemoveCVRefT) {
73 using From = typename TypeParam::first_type;
74 EXPECT_TRUE((std::is_same<typename llvm::remove_cvref<From>::type,
75 llvm::remove_cvref_t<From>>::value));
76 }
77
78 } // namespace
79