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//===- llvm/unittest/ADT/StringSetTest.cpp - StringSet unit tests ----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/StringSet.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
// Test fixture
class StringSetTest : public testing::Test {};
TEST_F(StringSetTest, IterSetKeys) {
StringSet<> Set;
Set.insert("A");
Set.insert("B");
Set.insert("C");
Set.insert("D");
auto Keys = to_vector<4>(Set.keys());
llvm::sort(Keys);
SmallVector<StringRef, 4> Expected = {"A", "B", "C", "D"};
EXPECT_EQ(Expected, Keys);
}
TEST_F(StringSetTest, InsertAndCountStringMapEntry) {
// Test insert(StringMapEntry) and count(StringMapEntry)
// which are required for set_difference(StringSet, StringSet).
StringSet<> Set;
StringMapEntry<StringRef> *Element = StringMapEntry<StringRef>::Create("A");
Set.insert(*Element);
size_t Count = Set.count(*Element);
size_t Expected = 1;
EXPECT_EQ(Expected, Count);
Element->Destroy();
}
} // end anonymous namespace
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