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//===- 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]));
}
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