llvm-project/llvm/unittests/ADT/SetVectorTest.cpp

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//===- llvm/unittest/ADT/SetVector.cpp ------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// SetVector unit tests.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/SetVector.h"
#include "gtest/gtest.h"
using namespace llvm;
TEST(SetVector, EraseTest) {
SetVector<int> S;
S.insert(0);
S.insert(1);
S.insert(2);
auto I = S.erase(std::next(S.begin()));
// Test that the returned iterator is the expected one-after-erase
// and the size/contents is the expected sequence {0, 2}.
EXPECT_EQ(std::next(S.begin()), I);
EXPECT_EQ(2u, S.size());
EXPECT_EQ(0, *S.begin());
EXPECT_EQ(2, *std::next(S.begin()));
}