1 //===- llvm/unittest/ADT/EnumeratedArrayTest.cpp ----------------*- C++ -*-===//
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 // EnumeratedArray unit tests.
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "llvm/ADT/EnumeratedArray.h"
14 #include "llvm/ADT/iterator_range.h"
15 #include "gmock/gmock.h"
16 #include "gtest/gtest.h"
17 #include <type_traits>
18
19 namespace llvm {
20
21 //===--------------------------------------------------------------------===//
22 // Test initialization and use of operator[] for both read and write.
23 //===--------------------------------------------------------------------===//
24
TEST(EnumeratedArray,InitAndIndex)25 TEST(EnumeratedArray, InitAndIndex) {
26
27 enum class Colors { Red, Blue, Green, Last = Green };
28
29 EnumeratedArray<float, Colors, Colors::Last, size_t> Array1;
30
31 Array1[Colors::Red] = 1.0;
32 Array1[Colors::Blue] = 2.0;
33 Array1[Colors::Green] = 3.0;
34
35 EXPECT_EQ(Array1[Colors::Red], 1.0);
36 EXPECT_EQ(Array1[Colors::Blue], 2.0);
37 EXPECT_EQ(Array1[Colors::Green], 3.0);
38
39 EnumeratedArray<bool, Colors> Array2(true);
40
41 EXPECT_TRUE(Array2[Colors::Red]);
42 EXPECT_TRUE(Array2[Colors::Blue]);
43 EXPECT_TRUE(Array2[Colors::Green]);
44
45 Array2[Colors::Red] = true;
46 Array2[Colors::Blue] = false;
47 Array2[Colors::Green] = true;
48
49 EXPECT_TRUE(Array2[Colors::Red]);
50 EXPECT_FALSE(Array2[Colors::Blue]);
51 EXPECT_TRUE(Array2[Colors::Green]);
52
53 EnumeratedArray<float, Colors, Colors::Last, size_t> Array3 = {10.0, 11.0,
54 12.0};
55 EXPECT_EQ(Array3[Colors::Red], 10.0);
56 EXPECT_EQ(Array3[Colors::Blue], 11.0);
57 EXPECT_EQ(Array3[Colors::Green], 12.0);
58 }
59
60 //===--------------------------------------------------------------------===//
61 // Test size and empty function
62 //===--------------------------------------------------------------------===//
63
TEST(EnumeratedArray,Size)64 TEST(EnumeratedArray, Size) {
65
66 enum class Colors { Red, Blue, Green, Last = Green };
67
68 EnumeratedArray<float, Colors, Colors::Last, size_t> Array;
69 const auto &ConstArray = Array;
70
71 EXPECT_EQ(ConstArray.size(), 3u);
72 EXPECT_EQ(ConstArray.empty(), false);
73 }
74
75 //===--------------------------------------------------------------------===//
76 // Test iterators
77 //===--------------------------------------------------------------------===//
78
TEST(EnumeratedArray,Iterators)79 TEST(EnumeratedArray, Iterators) {
80
81 enum class Colors { Red, Blue, Green, Last = Green };
82
83 EnumeratedArray<float, Colors, Colors::Last, size_t> Array;
84 const auto &ConstArray = Array;
85
86 Array[Colors::Red] = 1.0;
87 Array[Colors::Blue] = 2.0;
88 Array[Colors::Green] = 3.0;
89
90 EXPECT_THAT(Array, testing::ElementsAre(1.0, 2.0, 3.0));
91 EXPECT_THAT(ConstArray, testing::ElementsAre(1.0, 2.0, 3.0));
92
93 EXPECT_THAT(make_range(Array.rbegin(), Array.rend()),
94 testing::ElementsAre(3.0, 2.0, 1.0));
95 EXPECT_THAT(make_range(ConstArray.rbegin(), ConstArray.rend()),
96 testing::ElementsAre(3.0, 2.0, 1.0));
97 }
98
99 //===--------------------------------------------------------------------===//
100 // Test typedefs
101 //===--------------------------------------------------------------------===//
102
103 namespace {
104
105 enum class Colors { Red, Blue, Green, Last = Green };
106
107 using Array = EnumeratedArray<float, Colors, Colors::Last, size_t>;
108
109 static_assert(std::is_same_v<Array::value_type, float>,
110 "Incorrect value_type type");
111 static_assert(std::is_same_v<Array::reference, float &>,
112 "Incorrect reference type!");
113 static_assert(std::is_same_v<Array::pointer, float *>,
114 "Incorrect pointer type!");
115 static_assert(std::is_same_v<Array::const_reference, const float &>,
116 "Incorrect const_reference type!");
117 static_assert(std::is_same_v<Array::const_pointer, const float *>,
118 "Incorrect const_pointer type!");
119 } // namespace
120
121 } // namespace llvm
122