80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
//===- unittests/Basic/LineOffsetMappingTest.cpp - Test LineOffsetMapping -===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Basic/SourceManager.h"
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#include "gtest/gtest.h"
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using namespace clang;
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using namespace clang::SrcMgr;
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using namespace llvm;
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namespace {
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TEST(LineOffsetMappingTest, empty) {
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LineOffsetMapping Mapping;
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EXPECT_FALSE(Mapping);
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#if !defined(NDEBUG) && GTEST_HAS_DEATH_TEST
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EXPECT_DEATH((void)Mapping.getLines(), "Storage");
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#endif
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}
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TEST(LineOffsetMappingTest, construct) {
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BumpPtrAllocator Alloc;
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unsigned Offsets[] = {0, 10, 20};
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LineOffsetMapping Mapping(Offsets, Alloc);
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EXPECT_EQ(3u, Mapping.size());
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EXPECT_EQ(0u, Mapping[0]);
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EXPECT_EQ(10u, Mapping[1]);
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EXPECT_EQ(20u, Mapping[2]);
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#if !defined(NDEBUG) && GTEST_HAS_DEATH_TEST
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EXPECT_DEATH((void)Mapping[3], "Invalid index");
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#endif
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}
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TEST(LineOffsetMappingTest, constructTwo) {
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// Confirm allocation size is big enough, convering an off-by-one bug.
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BumpPtrAllocator Alloc;
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unsigned Offsets1[] = {0, 10};
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unsigned Offsets2[] = {0, 20};
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LineOffsetMapping Mapping1(Offsets1, Alloc);
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LineOffsetMapping Mapping2(Offsets2, Alloc);
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// Need to check Mapping1 *after* building Mapping2.
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EXPECT_EQ(2u, Mapping1.size());
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EXPECT_EQ(0u, Mapping1[0]);
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EXPECT_EQ(10u, Mapping1[1]);
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EXPECT_EQ(2u, Mapping2.size());
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EXPECT_EQ(0u, Mapping2[0]);
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EXPECT_EQ(20u, Mapping2[1]);
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}
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TEST(LineOffsetMappingTest, get) {
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BumpPtrAllocator Alloc;
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StringRef Source = "first line\n"
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"second line\n";
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auto Mapping = LineOffsetMapping::get(MemoryBufferRef(Source, ""), Alloc);
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EXPECT_EQ(3u, Mapping.size());
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EXPECT_EQ(0u, Mapping[0]);
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EXPECT_EQ(11u, Mapping[1]);
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EXPECT_EQ(23u, Mapping[2]);
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}
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TEST(LineOffsetMappingTest, getMissingFinalNewline) {
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BumpPtrAllocator Alloc;
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StringRef Source = "first line\n"
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"second line";
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auto Mapping = LineOffsetMapping::get(MemoryBufferRef(Source, ""), Alloc);
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EXPECT_EQ(2u, Mapping.size());
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EXPECT_EQ(0u, Mapping[0]);
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EXPECT_EQ(11u, Mapping[1]);
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}
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} // end namespace
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