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
19namespace llvm {
20
21//===--------------------------------------------------------------------===//
22// Test initialization and use of operator[] for both read and write.
23//===--------------------------------------------------------------------===//
24
25TEST(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
64TEST(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
79TEST(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
103namespace {
104
105enum class Colors { Red, Blue, Green, Last = Green };
106
107using Array = EnumeratedArray<float, Colors, Colors::Last, size_t>;
108
109static_assert(std::is_same_v<Array::value_type, float>,
110 "Incorrect value_type type");
111static_assert(std::is_same_v<Array::reference, float &>,
112 "Incorrect reference type!");
113static_assert(std::is_same_v<Array::pointer, float *>,
114 "Incorrect pointer type!");
115static_assert(std::is_same_v<Array::const_reference, const float &>,
116 "Incorrect const_reference type!");
117static_assert(std::is_same_v<Array::const_pointer, const float *>,
118 "Incorrect const_pointer type!");
119} // namespace
120
121} // namespace llvm
122

source code of llvm/unittests/ADT/EnumeratedArrayTest.cpp