summaryrefslogtreecommitdiff
path: root/unittests/ADT/SmallPtrSetTest.cpp
blob: 9114875e0035af096c63b38fd0bc036955b4c1c8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
//===- llvm/unittest/ADT/SmallPtrSetTest.cpp ------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// SmallPtrSet unit tests.
//
//===----------------------------------------------------------------------===//

#include "gtest/gtest.h"
#include "llvm/ADT/SmallPtrSet.h"

using namespace llvm;

// SmallPtrSet swapping test.
TEST(SmallPtrSetTest, SwapTest) {
  int buf[10];

  SmallPtrSet<int *, 2> a;
  SmallPtrSet<int *, 2> b;

  a.insert(&buf[0]);
  a.insert(&buf[1]);
  b.insert(&buf[2]);

  std::swap(a, b);

  EXPECT_EQ(1U, a.size());
  EXPECT_EQ(2U, b.size());
  EXPECT_TRUE(a.count(&buf[2]));
  EXPECT_TRUE(b.count(&buf[0]));
  EXPECT_TRUE(b.count(&buf[1]));

  b.insert(&buf[3]);
  std::swap(a, b);

  EXPECT_EQ(3U, a.size());
  EXPECT_EQ(1U, b.size());
  EXPECT_TRUE(a.count(&buf[0]));
  EXPECT_TRUE(a.count(&buf[1]));
  EXPECT_TRUE(a.count(&buf[3]));
  EXPECT_TRUE(b.count(&buf[2]));

  std::swap(a, b);

  EXPECT_EQ(1U, a.size());
  EXPECT_EQ(3U, b.size());
  EXPECT_TRUE(a.count(&buf[2]));
  EXPECT_TRUE(b.count(&buf[0]));
  EXPECT_TRUE(b.count(&buf[1]));
  EXPECT_TRUE(b.count(&buf[3]));

  a.insert(&buf[4]);
  a.insert(&buf[5]);
  a.insert(&buf[6]);

  std::swap(b, a);

  EXPECT_EQ(3U, a.size());
  EXPECT_EQ(4U, b.size());
  EXPECT_TRUE(b.count(&buf[2]));
  EXPECT_TRUE(b.count(&buf[4]));
  EXPECT_TRUE(b.count(&buf[5]));
  EXPECT_TRUE(b.count(&buf[6]));
  EXPECT_TRUE(a.count(&buf[0]));
  EXPECT_TRUE(a.count(&buf[1]));
  EXPECT_TRUE(a.count(&buf[3]));
}