1 //===-- FSTests.cpp - File system related tests -----------------*- C++ -*-===//
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 "FS.h"
10 #include "TestFS.h"
11 #include "gmock/gmock.h"
12 #include "gtest/gtest.h"
13
14 namespace clang {
15 namespace clangd {
16 namespace {
17
TEST(FSTests,PreambleStatusCache)18 TEST(FSTests, PreambleStatusCache) {
19 llvm::StringMap<std::string> Files;
20 Files["x"] = "";
21 Files["y"] = "";
22 Files["main"] = "";
23 auto FS = buildTestFS(Files);
24
25 PreambleFileStatusCache StatCache(testPath("main"));
26 auto ProduceFS = StatCache.getProducingFS(FS);
27 EXPECT_TRUE(ProduceFS->openFileForRead("x"));
28 EXPECT_TRUE(ProduceFS->status("y"));
29 EXPECT_TRUE(ProduceFS->status("main"));
30
31 EXPECT_TRUE(StatCache.lookup(testPath("x")).has_value());
32 EXPECT_TRUE(StatCache.lookup(testPath("y")).has_value());
33 // Main file is not cached.
34 EXPECT_FALSE(StatCache.lookup(testPath("main")).has_value());
35
36 llvm::vfs::Status S("fake", llvm::sys::fs::UniqueID(123, 456),
37 std::chrono::system_clock::now(), 0, 0, 1024,
38 llvm::sys::fs::file_type::regular_file,
39 llvm::sys::fs::all_all);
40 StatCache.update(*FS, S, "real");
41 auto ConsumeFS = StatCache.getConsumingFS(FS);
42 EXPECT_FALSE(ConsumeFS->status(testPath("fake")));
43 auto Cached = ConsumeFS->status(testPath("real"));
44 EXPECT_TRUE(Cached);
45 EXPECT_EQ(Cached->getName(), testPath("real"));
46 EXPECT_EQ(Cached->getUniqueID(), S.getUniqueID());
47
48 // real and temp/../real should hit the same cache entry.
49 // However, the Status returned reflects the actual path requested.
50 auto CachedDotDot = ConsumeFS->status(testPath("temp/../real"));
51 EXPECT_TRUE(CachedDotDot);
52 EXPECT_EQ(CachedDotDot->getName(), testPath("temp/../real"));
53 EXPECT_EQ(CachedDotDot->getUniqueID(), S.getUniqueID());
54 }
55
56 } // namespace
57 } // namespace clangd
58 } // namespace clang
59