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[ADT] Enable set_difference() to be used on StringSet
Summary: Re-land r362766 after it was reverted in r362823. Reviewers: jhenderson, dsanders, aaron.ballman, MatzeB, lhames, dblaikie Reviewed By: dblaikie Subscribers: smeenai, mgrang, mgorny, dexonsmith, kristina, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D62369 llvm-svn: 362835
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Michael Pozulp
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Jun 7, 2019
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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 | ||
// | ||
//===----------------------------------------------------------------------===// | ||
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#include "llvm/ADT/StringSet.h" | ||
#include "gtest/gtest.h" | ||
using namespace llvm; | ||
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namespace { | ||
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// Test fixture | ||
class StringSetTest : public testing::Test {}; | ||
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TEST_F(StringSetTest, IterSetKeys) { | ||
StringSet<> Set; | ||
Set.insert("A"); | ||
Set.insert("B"); | ||
Set.insert("C"); | ||
Set.insert("D"); | ||
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auto Keys = to_vector<4>(Set.keys()); | ||
llvm::sort(Keys); | ||
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SmallVector<StringRef, 4> Expected = {"A", "B", "C", "D"}; | ||
EXPECT_EQ(Expected, Keys); | ||
} | ||
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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(); | ||
} | ||
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} // end anonymous namespace |