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9 | #include "clang/Basic/FileManager.h" |
10 | #include "clang/Basic/FileSystemOptions.h" |
11 | #include "clang/Basic/FileSystemStatCache.h" |
12 | #include "llvm/ADT/STLExtras.h" |
13 | #include "llvm/Support/Path.h" |
14 | #include "llvm/Support/VirtualFileSystem.h" |
15 | #include "gtest/gtest.h" |
16 | |
17 | using namespace llvm; |
18 | using namespace clang; |
19 | |
20 | namespace { |
21 | |
22 | |
23 | |
24 | |
25 | class FakeStatCache : public FileSystemStatCache { |
26 | private: |
27 | |
28 | |
29 | llvm::StringMap<llvm::vfs::Status, llvm::BumpPtrAllocator> StatCalls; |
30 | |
31 | void InjectFileOrDirectory(const char *Path, ino_t INode, bool IsFile) { |
32 | #ifndef _WIN32 |
33 | SmallString<128> NormalizedPath(Path); |
34 | llvm::sys::path::native(NormalizedPath); |
35 | Path = NormalizedPath.c_str(); |
36 | #endif |
37 | |
38 | auto fileType = IsFile ? |
39 | llvm::sys::fs::file_type::regular_file : |
40 | llvm::sys::fs::file_type::directory_file; |
41 | llvm::vfs::Status Status(Path, llvm::sys::fs::UniqueID(1, INode), |
42 | {}, , , |
43 | , fileType, |
44 | llvm::sys::fs::perms::all_all); |
45 | StatCalls[Path] = Status; |
46 | } |
47 | |
48 | public: |
49 | |
50 | void InjectFile(const char *Path, ino_t INode) { |
51 | InjectFileOrDirectory(Path, INode, ); |
52 | } |
53 | |
54 | |
55 | void InjectDirectory(const char *Path, ino_t INode) { |
56 | InjectFileOrDirectory(Path, INode, ); |
57 | } |
58 | |
59 | |
60 | LookupResult getStat(StringRef Path, llvm::vfs::Status &Status, bool isFile, |
61 | std::unique_ptr<llvm::vfs::File> *F, |
62 | llvm::vfs::FileSystem &FS) override { |
63 | #ifndef _WIN32 |
64 | SmallString<128> NormalizedPath(Path); |
65 | llvm::sys::path::native(NormalizedPath); |
66 | Path = NormalizedPath.c_str(); |
67 | #endif |
68 | |
69 | if (StatCalls.count(Path) != 0) { |
70 | Status = StatCalls[Path]; |
71 | return CacheExists; |
72 | } |
73 | |
74 | return CacheMissing; |
75 | } |
76 | }; |
77 | |
78 | |
79 | class FileManagerTest : public ::testing::Test { |
80 | protected: |
81 | FileManagerTest() : manager(options) { |
82 | } |
83 | |
84 | FileSystemOptions options; |
85 | FileManager manager; |
86 | }; |
87 | |
88 | |
89 | |
90 | TEST_F(FileManagerTest, getVirtualFileSetsTheDirFieldCorrectly) { |
91 | const FileEntry *file = manager.getVirtualFile("foo.cpp", 42, 0); |
92 | ASSERT_TRUE(file != nullptr); |
93 | |
94 | const DirectoryEntry *dir = file->getDir(); |
95 | ASSERT_TRUE(dir != nullptr); |
96 | EXPECT_EQ(".", dir->getName()); |
97 | |
98 | file = manager.getVirtualFile("x/y/z.cpp", 42, 0); |
99 | ASSERT_TRUE(file != nullptr); |
100 | |
101 | dir = file->getDir(); |
102 | ASSERT_TRUE(dir != nullptr); |
103 | EXPECT_EQ("x/y", dir->getName()); |
104 | } |
105 | |
106 | |
107 | TEST_F(FileManagerTest, NoVirtualDirectoryExistsBeforeAVirtualFileIsAdded) { |
108 | |
109 | |
110 | |
111 | |
112 | manager.setStatCache(llvm::make_unique<FakeStatCache>()); |
113 | |
114 | EXPECT_EQ(nullptr, manager.getDirectory("virtual/dir/foo")); |
115 | EXPECT_EQ(nullptr, manager.getDirectory("virtual/dir")); |
116 | EXPECT_EQ(nullptr, manager.getDirectory("virtual")); |
117 | } |
118 | |
119 | |
120 | TEST_F(FileManagerTest, getVirtualFileCreatesDirectoryEntriesForAncestors) { |
121 | |
122 | manager.setStatCache(llvm::make_unique<FakeStatCache>()); |
123 | |
124 | manager.getVirtualFile("virtual/dir/bar.h", 100, 0); |
125 | EXPECT_EQ(nullptr, manager.getDirectory("virtual/dir/foo")); |
126 | |
127 | const DirectoryEntry *dir = manager.getDirectory("virtual/dir"); |
128 | ASSERT_TRUE(dir != nullptr); |
129 | EXPECT_EQ("virtual/dir", dir->getName()); |
130 | |
131 | dir = manager.getDirectory("virtual"); |
132 | ASSERT_TRUE(dir != nullptr); |
133 | EXPECT_EQ("virtual", dir->getName()); |
134 | } |
135 | |
136 | |
137 | TEST_F(FileManagerTest, getFileReturnsValidFileEntryForExistingRealFile) { |
138 | |
139 | auto statCache = llvm::make_unique<FakeStatCache>(); |
140 | statCache->InjectDirectory("/tmp", 42); |
141 | statCache->InjectFile("/tmp/test", 43); |
142 | |
143 | #ifdef _WIN32 |
144 | const char *DirName = "C:."; |
145 | const char *FileName = "C:test"; |
146 | statCache->InjectDirectory(DirName, 44); |
147 | statCache->InjectFile(FileName, 45); |
148 | #endif |
149 | |
150 | manager.setStatCache(std::move(statCache)); |
151 | |
152 | const FileEntry *file = manager.getFile("/tmp/test"); |
153 | ASSERT_TRUE(file != nullptr); |
154 | ASSERT_TRUE(file->isValid()); |
155 | EXPECT_EQ("/tmp/test", file->getName()); |
156 | |
157 | const DirectoryEntry *dir = file->getDir(); |
158 | ASSERT_TRUE(dir != nullptr); |
159 | EXPECT_EQ("/tmp", dir->getName()); |
160 | |
161 | #ifdef _WIN32 |
162 | file = manager.getFile(FileName); |
163 | ASSERT_TRUE(file != NULL); |
164 | |
165 | dir = file->getDir(); |
166 | ASSERT_TRUE(dir != NULL); |
167 | EXPECT_EQ(DirName, dir->getName()); |
168 | #endif |
169 | } |
170 | |
171 | |
172 | TEST_F(FileManagerTest, getFileReturnsValidFileEntryForExistingVirtualFile) { |
173 | |
174 | manager.setStatCache(llvm::make_unique<FakeStatCache>()); |
175 | |
176 | manager.getVirtualFile("virtual/dir/bar.h", 100, 0); |
177 | const FileEntry *file = manager.getFile("virtual/dir/bar.h"); |
178 | ASSERT_TRUE(file != nullptr); |
179 | ASSERT_TRUE(file->isValid()); |
180 | EXPECT_EQ("virtual/dir/bar.h", file->getName()); |
181 | |
182 | const DirectoryEntry *dir = file->getDir(); |
183 | ASSERT_TRUE(dir != nullptr); |
184 | EXPECT_EQ("virtual/dir", dir->getName()); |
185 | } |
186 | |
187 | |
188 | |
189 | TEST_F(FileManagerTest, getFileReturnsDifferentFileEntriesForDifferentFiles) { |
190 | |
191 | |
192 | auto statCache = llvm::make_unique<FakeStatCache>(); |
193 | statCache->InjectDirectory(".", 41); |
194 | statCache->InjectFile("foo.cpp", 42); |
195 | statCache->InjectFile("bar.cpp", 43); |
196 | manager.setStatCache(std::move(statCache)); |
197 | |
198 | const FileEntry *fileFoo = manager.getFile("foo.cpp"); |
199 | const FileEntry *fileBar = manager.getFile("bar.cpp"); |
200 | ASSERT_TRUE(fileFoo != nullptr); |
201 | ASSERT_TRUE(fileFoo->isValid()); |
202 | ASSERT_TRUE(fileBar != nullptr); |
203 | ASSERT_TRUE(fileBar->isValid()); |
204 | EXPECT_NE(fileFoo, fileBar); |
205 | } |
206 | |
207 | |
208 | |
209 | TEST_F(FileManagerTest, getFileReturnsNULLForNonexistentFile) { |
210 | |
211 | auto statCache = llvm::make_unique<FakeStatCache>(); |
212 | statCache->InjectDirectory(".", 41); |
213 | statCache->InjectFile("foo.cpp", 42); |
214 | manager.setStatCache(std::move(statCache)); |
215 | |
216 | |
217 | manager.getVirtualFile("bar.cpp", 200, 0); |
218 | |
219 | const FileEntry *file = manager.getFile("xyz.txt"); |
220 | EXPECT_EQ(nullptr, file); |
221 | } |
222 | |
223 | |
224 | |
225 | #ifndef _WIN32 |
226 | |
227 | |
228 | TEST_F(FileManagerTest, getFileReturnsSameFileEntryForAliasedRealFiles) { |
229 | |
230 | auto statCache = llvm::make_unique<FakeStatCache>(); |
231 | statCache->InjectDirectory("abc", 41); |
232 | statCache->InjectFile("abc/foo.cpp", 42); |
233 | statCache->InjectFile("abc/bar.cpp", 42); |
234 | manager.setStatCache(std::move(statCache)); |
235 | |
236 | EXPECT_EQ(manager.getFile("abc/foo.cpp"), manager.getFile("abc/bar.cpp")); |
237 | } |
238 | |
239 | |
240 | |
241 | TEST_F(FileManagerTest, getFileReturnsSameFileEntryForAliasedVirtualFiles) { |
242 | |
243 | auto statCache = llvm::make_unique<FakeStatCache>(); |
244 | statCache->InjectDirectory("abc", 41); |
245 | statCache->InjectFile("abc/foo.cpp", 42); |
246 | statCache->InjectFile("abc/bar.cpp", 42); |
247 | manager.setStatCache(std::move(statCache)); |
248 | |
249 | ASSERT_TRUE(manager.getVirtualFile("abc/foo.cpp", 100, 0)->isValid()); |
250 | ASSERT_TRUE(manager.getVirtualFile("abc/bar.cpp", 200, 0)->isValid()); |
251 | |
252 | EXPECT_EQ(manager.getFile("abc/foo.cpp"), manager.getFile("abc/bar.cpp")); |
253 | } |
254 | |
255 | |
256 | |
257 | |
258 | |
259 | TEST_F(FileManagerTest, getVirtualFileWithDifferentName) { |
260 | |
261 | auto statCache = llvm::make_unique<FakeStatCache>(); |
262 | statCache->InjectDirectory("c:\\tmp", 42); |
263 | statCache->InjectFile("c:\\tmp\\test", 43); |
264 | |
265 | manager.setStatCache(std::move(statCache)); |
266 | |
267 | |
268 | const FileEntry *file1 = manager.getVirtualFile("c:\\tmp\\test", 123, 1); |
269 | ASSERT_TRUE(file1 != nullptr); |
270 | ASSERT_TRUE(file1->isValid()); |
271 | EXPECT_EQ(43U, file1->getUniqueID().getFile()); |
272 | EXPECT_EQ(123, file1->getSize()); |
273 | |
274 | |
275 | const FileEntry *file2 = manager.getFile("c:/tmp/test", 100, 1); |
276 | ASSERT_TRUE(file2 != nullptr); |
277 | ASSERT_TRUE(file2->isValid()); |
278 | |
279 | EXPECT_EQ(file1, file2); |
280 | EXPECT_EQ(43U, file2->getUniqueID().getFile()); |
281 | |
282 | |
283 | EXPECT_EQ(123, file2->getSize()); |
284 | } |
285 | |
286 | #endif |
287 | |
288 | TEST_F(FileManagerTest, makeAbsoluteUsesVFS) { |
289 | SmallString<64> CustomWorkingDir; |
290 | #ifdef _WIN32 |
291 | CustomWorkingDir = "C:"; |
292 | #else |
293 | CustomWorkingDir = "/"; |
294 | #endif |
295 | llvm::sys::path::append(CustomWorkingDir, "some", "weird", "path"); |
296 | |
297 | auto FS = IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem>( |
298 | new llvm::vfs::InMemoryFileSystem); |
299 | |
300 | ASSERT_TRUE(!FS->setCurrentWorkingDirectory(CustomWorkingDir)); |
301 | |
302 | FileSystemOptions Opts; |
303 | FileManager Manager(Opts, FS); |
304 | |
305 | SmallString<64> Path("a/foo.cpp"); |
306 | |
307 | SmallString<64> ExpectedResult(CustomWorkingDir); |
308 | llvm::sys::path::append(ExpectedResult, Path); |
309 | |
310 | ASSERT_TRUE(Manager.makeAbsolutePath(Path)); |
311 | EXPECT_EQ(Path, ExpectedResult); |
312 | } |
313 | |
314 | |
315 | TEST_F(FileManagerTest, getVirtualFileFillsRealPathName) { |
316 | SmallString<64> CustomWorkingDir; |
317 | #ifdef _WIN32 |
318 | CustomWorkingDir = "C:/"; |
319 | #else |
320 | CustomWorkingDir = "/"; |
321 | #endif |
322 | |
323 | auto FS = IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem>( |
324 | new llvm::vfs::InMemoryFileSystem); |
325 | |
326 | ASSERT_TRUE(!FS->setCurrentWorkingDirectory(CustomWorkingDir)); |
327 | |
328 | FileSystemOptions Opts; |
329 | FileManager Manager(Opts, FS); |
330 | |
331 | |
332 | auto statCache = llvm::make_unique<FakeStatCache>(); |
333 | statCache->InjectDirectory("/tmp", 42); |
334 | statCache->InjectFile("/tmp/test", 43); |
335 | |
336 | Manager.setStatCache(std::move(statCache)); |
337 | |
338 | |
339 | const FileEntry *file = Manager.getVirtualFile("/tmp/test", 123, 1); |
340 | ASSERT_TRUE(file != nullptr); |
341 | ASSERT_TRUE(file->isValid()); |
342 | SmallString<64> ExpectedResult = CustomWorkingDir; |
343 | |
344 | llvm::sys::path::append(ExpectedResult, "tmp", "test"); |
345 | EXPECT_EQ(file->tryGetRealPathName(), ExpectedResult); |
346 | } |
347 | |
348 | TEST_F(FileManagerTest, getFileDontOpenRealPath) { |
349 | SmallString<64> CustomWorkingDir; |
350 | #ifdef _WIN32 |
351 | CustomWorkingDir = "C:/"; |
352 | #else |
353 | CustomWorkingDir = "/"; |
354 | #endif |
355 | |
356 | auto FS = IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem>( |
357 | new llvm::vfs::InMemoryFileSystem); |
358 | |
359 | ASSERT_TRUE(!FS->setCurrentWorkingDirectory(CustomWorkingDir)); |
360 | |
361 | FileSystemOptions Opts; |
362 | FileManager Manager(Opts, FS); |
363 | |
364 | |
365 | auto statCache = llvm::make_unique<FakeStatCache>(); |
366 | statCache->InjectDirectory("/tmp", 42); |
367 | statCache->InjectFile("/tmp/test", 43); |
368 | |
369 | Manager.setStatCache(std::move(statCache)); |
370 | |
371 | |
372 | const FileEntry *file = Manager.getFile("/tmp/test", ); |
373 | ASSERT_TRUE(file != nullptr); |
374 | ASSERT_TRUE(file->isValid()); |
375 | SmallString<64> ExpectedResult = CustomWorkingDir; |
376 | |
377 | llvm::sys::path::append(ExpectedResult, "tmp", "test"); |
378 | EXPECT_EQ(file->tryGetRealPathName(), ExpectedResult); |
379 | } |
380 | |
381 | } |
382 | |