1 //===------ ADT/SparseSetTest.cpp - SparseSet unit tests - -----*- C++ -*-===//
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/SparseMultiSet.h"
11 #include "gtest/gtest.h"
17 typedef SparseMultiSet<unsigned> USet;
20 TEST(SparseMultiSetTest, EmptySet) {
22 EXPECT_TRUE(Set.empty());
23 EXPECT_EQ(0u, Set.size());
27 // Lookups on empty set.
28 EXPECT_TRUE(Set.find(0) == Set.end());
29 EXPECT_TRUE(Set.find(9) == Set.end());
31 // Same thing on a const reference.
32 const USet &CSet = Set;
33 EXPECT_TRUE(CSet.empty());
34 EXPECT_EQ(0u, CSet.size());
35 EXPECT_TRUE(CSet.find(0) == CSet.end());
36 USet::const_iterator I = CSet.find(5);
37 EXPECT_TRUE(I == CSet.end());
40 // Single entry set tests.
41 TEST(SparseMultiSetTest, SingleEntrySet) {
44 USet::iterator I = Set.insert(5);
45 EXPECT_TRUE(I != Set.end());
48 EXPECT_FALSE(Set.empty());
49 EXPECT_EQ(1u, Set.size());
51 EXPECT_TRUE(Set.find(0) == Set.end());
52 EXPECT_TRUE(Set.find(9) == Set.end());
54 EXPECT_FALSE(Set.contains(0));
55 EXPECT_TRUE(Set.contains(5));
59 EXPECT_TRUE(I != Set.end());
60 EXPECT_TRUE(I == ++Set.find(5));
62 EXPECT_TRUE(I == Set.find(5));
64 // Erase non-existent element.
66 EXPECT_TRUE(I == Set.end());
67 EXPECT_EQ(2u, Set.size());
68 EXPECT_EQ(5u, *Set.find(5));
72 EXPECT_TRUE(I != Set.end());
74 EXPECT_TRUE(I != Set.end());
76 EXPECT_TRUE(I == Set.end());
77 EXPECT_TRUE(Set.empty());
80 // Multiple entry set tests.
81 TEST(SparseMultiSetTest, MultipleEntrySet) {
92 EXPECT_EQ(7u, Set.size());
94 // Erase last element by key.
95 EXPECT_TRUE(Set.erase(Set.find(4)) == Set.end());
96 EXPECT_EQ(6u, Set.size());
97 EXPECT_FALSE(Set.contains(4));
98 EXPECT_TRUE(Set.find(4) == Set.end());
100 // Erase first element by key.
101 EXPECT_EQ(3u, Set.count(5));
102 EXPECT_TRUE(Set.find(5) != Set.end());
103 EXPECT_TRUE(Set.erase(Set.find(5)) != Set.end());
104 EXPECT_EQ(5u, Set.size());
105 EXPECT_EQ(2u, Set.count(5));
109 EXPECT_EQ(7u, Set.size());
111 // Erase tail by iterator.
112 EXPECT_TRUE(Set.getTail(6) == Set.getHead(6));
113 USet::iterator I = Set.erase(Set.find(6));
114 EXPECT_TRUE(I == Set.end());
115 EXPECT_EQ(6u, Set.size());
117 // Erase tails by iterator.
118 EXPECT_EQ(2u, Set.count(5));
121 EXPECT_TRUE(I == Set.end());
123 EXPECT_EQ(1u, Set.count(5));
126 EXPECT_TRUE(I == Set.end());
127 EXPECT_EQ(0u, Set.count(5));
136 EXPECT_EQ(5, std::distance(Set.getHead(8), Set.end()));
138 EXPECT_EQ(0, std::distance(Set.getHead(8), Set.end()));
140 // Clear and resize the universe.
142 EXPECT_EQ(0u, Set.size());
143 EXPECT_FALSE(Set.contains(3));
144 Set.setUniverse(1000);
146 // Add more than 256 elements.
147 for (unsigned i = 100; i != 800; ++i)
150 for (unsigned i = 0; i != 10; ++i)
153 for (unsigned i = 100; i != 800; ++i)
154 EXPECT_EQ(1u, Set.count(i));
156 EXPECT_FALSE(Set.contains(99));
157 EXPECT_FALSE(Set.contains(800));
158 EXPECT_EQ(700u, Set.size());
161 // Test out iterators
162 TEST(SparseMultiSetTest, Iterators) {
164 Set.setUniverse(100);
173 USet::RangePair RangePair = Set.equal_range(0);
174 USet::iterator B = RangePair.first;
175 USet::iterator E = RangePair.second;
177 // Move the iterators around, going to end and coming back.
178 EXPECT_EQ(3, std::distance(B, E));
179 EXPECT_EQ(B, --(--(--E)));
180 EXPECT_EQ(++(++(++E)), Set.end());
181 EXPECT_EQ(B, --(--(--E)));
182 EXPECT_EQ(++(++(++E)), Set.end());
184 // Insert into the tail, and move around again
186 EXPECT_EQ(B, --(--(--(--E))));
187 EXPECT_EQ(++(++(++(++E))), Set.end());
188 EXPECT_EQ(B, --(--(--(--E))));
189 EXPECT_EQ(++(++(++(++E))), Set.end());
191 // Erase a tail, and move around again
192 USet::iterator Erased = Set.erase(Set.getTail(0));
193 EXPECT_EQ(Erased, E);
194 EXPECT_EQ(B, --(--(--E)));
197 Set2.setUniverse(11);
199 EXPECT_TRUE(!Set2.contains(0));
200 EXPECT_TRUE(!Set.contains(3));
202 EXPECT_EQ(Set2.getHead(3), Set2.getTail(3));
203 EXPECT_EQ(Set2.getHead(0), Set2.getTail(0));
205 EXPECT_EQ(Set2.find(3), --(++B));
210 explicit Alt(unsigned x) : Value(x) {}
211 unsigned getSparseSetIndex() const { return Value - 1000; }
214 TEST(SparseMultiSetTest, AltStructSet) {
215 typedef SparseMultiSet<Alt> ASet;
218 Set.insert(Alt(1005));
220 ASet::iterator I = Set.find(5);
221 ASSERT_TRUE(I != Set.end());
222 EXPECT_EQ(1005u, I->Value);
224 Set.insert(Alt(1006));
225 Set.insert(Alt(1006));
226 I = Set.erase(Set.find(6));
227 ASSERT_TRUE(I != Set.end());
228 EXPECT_EQ(1006u, I->Value);
229 I = Set.erase(Set.find(6));
230 ASSERT_TRUE(I == Set.end());
232 EXPECT_TRUE(Set.contains(5));
233 EXPECT_FALSE(Set.contains(6));