HeaderSearchTest.cpp source code [clang_source_code/unittests/Lex/HeaderSearchTest.cpp]

1	//===- unittests/Lex/HeaderSearchTest.cpp ------ HeaderSearch tests -------===//
2	//
3	// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4	// See https://llvm.org/LICENSE.txt for license information.
5	// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6	//
7	//===----------------------------------------------------------------------===//
8
9	#include "clang/Lex/HeaderSearch.h"
10	#include "clang/Basic/Diagnostic.h"
11	#include "clang/Basic/DiagnosticOptions.h"
12	#include "clang/Basic/FileManager.h"
13	#include "clang/Basic/LangOptions.h"
14	#include "clang/Basic/SourceManager.h"
15	#include "clang/Basic/TargetInfo.h"
16	#include "clang/Basic/TargetOptions.h"
17	#include "clang/Lex/HeaderSearch.h"
18	#include "clang/Lex/HeaderSearchOptions.h"
19	#include "clang/Serialization/InMemoryModuleCache.h"
20	#include "gtest/gtest.h"
21
22	namespace clang {
23	namespace {
24
25	// The test fixture.
26	class HeaderSearchTest : public ::testing::Test {
27	protected:
28	HeaderSearchTest()
29	: VFS(new llvm::vfs::InMemoryFileSystem), FileMgr(FileMgrOpts, VFS),
30	DiagID(new DiagnosticIDs()),
31	Diags(DiagID, new DiagnosticOptions, new IgnoringDiagConsumer()),
32	SourceMgr(Diags, FileMgr), TargetOpts(new TargetOptions),
33	Search(std::make_shared<HeaderSearchOptions>(), SourceMgr, Diags,
34	LangOpts, Target.get()) {
35	TargetOpts->Triple = "x86_64-apple-darwin11.1.0";
36	Target = TargetInfo::CreateTargetInfo(Diags, TargetOpts);
37	}
38
39	void addSearchDir(llvm::StringRef Dir) {
40	VFS->addFile(Dir, 0, llvm::MemoryBuffer::getMemBuffer(""), /User=/None,
41	/Group=/None, llvm::sys::fs::file_type::directory_file);
42	const DirectoryEntry *DE = FileMgr.getDirectory(Dir);
43	assert(DE);
44	auto DL = DirectoryLookup(DE, SrcMgr::C_User, /isFramework=/false);
45	Search.AddSearchPath(DL, /isAngled=/false);
46	}
47
48	IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> VFS;
49	FileSystemOptions FileMgrOpts;
50	FileManager FileMgr;
51	IntrusiveRefCntPtr<DiagnosticIDs> DiagID;
52	DiagnosticsEngine Diags;
53	SourceManager SourceMgr;
54	LangOptions LangOpts;
55	std::shared_ptr<TargetOptions> TargetOpts;
56	IntrusiveRefCntPtr<TargetInfo> Target;
57	HeaderSearch Search;
58	};
59
60	TEST_F(HeaderSearchTest, NoSearchDir) {
61	EXPECT_EQ(Search.search_dir_size(), 0u);
62	EXPECT_EQ(Search.suggestPathToFileForDiagnostics("/x/y/z", /WorkingDir=/""),
63	"/x/y/z");
64	}
65
66	TEST_F(HeaderSearchTest, SimpleShorten) {
67	addSearchDir("/x");
68	addSearchDir("/x/y");
69	EXPECT_EQ(Search.suggestPathToFileForDiagnostics("/x/y/z", /WorkingDir=/""),
70	"z");
71	addSearchDir("/a/b/");
72	EXPECT_EQ(Search.suggestPathToFileForDiagnostics("/a/b/c", /WorkingDir=/""),
73	"c");
74	}
75
76	TEST_F(HeaderSearchTest, ShortenWithWorkingDir) {
77	addSearchDir("x/y");
78	EXPECT_EQ(Search.suggestPathToFileForDiagnostics("/a/b/c/x/y/z",
79	/WorkingDir=/"/a/b/c"),
80	"z");
81	}
82
83	TEST_F(HeaderSearchTest, Dots) {
84	addSearchDir("/x/./y/");
85	EXPECT_EQ(Search.suggestPathToFileForDiagnostics("/x/y/./z",
86	/WorkingDir=/""),
87	"z");
88	addSearchDir("a/.././c/");
89	EXPECT_EQ(Search.suggestPathToFileForDiagnostics("/m/n/./c/z",
90	/WorkingDir=/"/m/n/"),
91	"z");
92	}
93
94	} // namespace
95	} // namespace clang
96

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