forked from OSchip/llvm-project
100 lines
2.7 KiB
C++
100 lines
2.7 KiB
C++
//===- unittests/ADT/IListNodeBaseTest.cpp - ilist_node_base 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/ilist_node_base.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
typedef ilist_node_base<false> RawNode;
|
|
typedef ilist_node_base<true> TrackingNode;
|
|
|
|
TEST(IListNodeBaseTest, DefaultConstructor) {
|
|
RawNode A;
|
|
EXPECT_EQ(nullptr, A.getPrev());
|
|
EXPECT_EQ(nullptr, A.getNext());
|
|
EXPECT_FALSE(A.isKnownSentinel());
|
|
|
|
TrackingNode TA;
|
|
EXPECT_EQ(nullptr, TA.getPrev());
|
|
EXPECT_EQ(nullptr, TA.getNext());
|
|
EXPECT_FALSE(TA.isKnownSentinel());
|
|
EXPECT_FALSE(TA.isSentinel());
|
|
}
|
|
|
|
TEST(IListNodeBaseTest, setPrevAndNext) {
|
|
RawNode A, B, C;
|
|
A.setPrev(&B);
|
|
EXPECT_EQ(&B, A.getPrev());
|
|
EXPECT_EQ(nullptr, A.getNext());
|
|
EXPECT_EQ(nullptr, B.getPrev());
|
|
EXPECT_EQ(nullptr, B.getNext());
|
|
EXPECT_EQ(nullptr, C.getPrev());
|
|
EXPECT_EQ(nullptr, C.getNext());
|
|
|
|
A.setNext(&C);
|
|
EXPECT_EQ(&B, A.getPrev());
|
|
EXPECT_EQ(&C, A.getNext());
|
|
EXPECT_EQ(nullptr, B.getPrev());
|
|
EXPECT_EQ(nullptr, B.getNext());
|
|
EXPECT_EQ(nullptr, C.getPrev());
|
|
EXPECT_EQ(nullptr, C.getNext());
|
|
|
|
TrackingNode TA, TB, TC;
|
|
TA.setPrev(&TB);
|
|
EXPECT_EQ(&TB, TA.getPrev());
|
|
EXPECT_EQ(nullptr, TA.getNext());
|
|
EXPECT_EQ(nullptr, TB.getPrev());
|
|
EXPECT_EQ(nullptr, TB.getNext());
|
|
EXPECT_EQ(nullptr, TC.getPrev());
|
|
EXPECT_EQ(nullptr, TC.getNext());
|
|
|
|
TA.setNext(&TC);
|
|
EXPECT_EQ(&TB, TA.getPrev());
|
|
EXPECT_EQ(&TC, TA.getNext());
|
|
EXPECT_EQ(nullptr, TB.getPrev());
|
|
EXPECT_EQ(nullptr, TB.getNext());
|
|
EXPECT_EQ(nullptr, TC.getPrev());
|
|
EXPECT_EQ(nullptr, TC.getNext());
|
|
}
|
|
|
|
TEST(IListNodeBaseTest, isKnownSentinel) {
|
|
// Without sentinel tracking.
|
|
RawNode A, B;
|
|
EXPECT_FALSE(A.isKnownSentinel());
|
|
A.setPrev(&B);
|
|
A.setNext(&B);
|
|
EXPECT_EQ(&B, A.getPrev());
|
|
EXPECT_EQ(&B, A.getNext());
|
|
EXPECT_FALSE(A.isKnownSentinel());
|
|
A.initializeSentinel();
|
|
EXPECT_FALSE(A.isKnownSentinel());
|
|
EXPECT_EQ(&B, A.getPrev());
|
|
EXPECT_EQ(&B, A.getNext());
|
|
|
|
// With sentinel tracking.
|
|
TrackingNode TA, TB;
|
|
EXPECT_FALSE(TA.isKnownSentinel());
|
|
EXPECT_FALSE(TA.isSentinel());
|
|
TA.setPrev(&TB);
|
|
TA.setNext(&TB);
|
|
EXPECT_EQ(&TB, TA.getPrev());
|
|
EXPECT_EQ(&TB, TA.getNext());
|
|
EXPECT_FALSE(TA.isKnownSentinel());
|
|
EXPECT_FALSE(TA.isSentinel());
|
|
TA.initializeSentinel();
|
|
EXPECT_TRUE(TA.isKnownSentinel());
|
|
EXPECT_TRUE(TA.isSentinel());
|
|
EXPECT_EQ(&TB, TA.getPrev());
|
|
EXPECT_EQ(&TB, TA.getNext());
|
|
}
|
|
|
|
} // end namespace
|