84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
//===-- FileCacheTests.cpp ------------------------------------------------===//
|
|
//
|
|
// 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 "support/FileCache.h"
|
|
|
|
#include "TestFS.h"
|
|
#include "gmock/gmock.h"
|
|
#include "gtest/gtest.h"
|
|
#include <atomic>
|
|
#include <chrono>
|
|
|
|
namespace clang {
|
|
namespace clangd {
|
|
namespace config {
|
|
namespace {
|
|
|
|
class TestCache : public FileCache {
|
|
MockFS FS;
|
|
mutable std::string Value;
|
|
|
|
public:
|
|
TestCache() : FileCache(testPath("foo.cc")) {}
|
|
|
|
void setContents(const char *C) {
|
|
if (C)
|
|
FS.Files[testPath("foo.cc")] = C;
|
|
else
|
|
FS.Files.erase(testPath("foo.cc"));
|
|
}
|
|
|
|
std::string get(std::chrono::steady_clock::time_point FreshTime,
|
|
bool ExpectParse) const {
|
|
bool GotParse = false;
|
|
bool GotRead;
|
|
std::string Result;
|
|
read(
|
|
FS, FreshTime,
|
|
[&](llvm::Optional<llvm::StringRef> Data) {
|
|
GotParse = true;
|
|
Value = Data.getValueOr("").str();
|
|
},
|
|
[&]() {
|
|
GotRead = true;
|
|
Result = Value;
|
|
});
|
|
EXPECT_EQ(GotParse, ExpectParse);
|
|
EXPECT_TRUE(GotRead);
|
|
return Result;
|
|
}
|
|
};
|
|
|
|
TEST(FileCacheTest, Invalidation) {
|
|
TestCache C;
|
|
|
|
auto StaleOK = std::chrono::steady_clock::now();
|
|
auto MustBeFresh = StaleOK + std::chrono::hours(1);
|
|
|
|
C.setContents("a");
|
|
EXPECT_EQ("a", C.get(StaleOK, /*ExpectParse=*/true)) << "Parsed first time";
|
|
EXPECT_EQ("a", C.get(StaleOK, /*ExpectParse=*/false)) << "Cached (time)";
|
|
EXPECT_EQ("a", C.get(MustBeFresh, /*ExpectParse=*/false)) << "Cached (stat)";
|
|
C.setContents("bb");
|
|
EXPECT_EQ("a", C.get(StaleOK, /*ExpectParse=*/false)) << "Cached (time)";
|
|
EXPECT_EQ("bb", C.get(MustBeFresh, /*ExpectParse=*/true)) << "Size changed";
|
|
EXPECT_EQ("bb", C.get(MustBeFresh, /*ExpectParse=*/true)) << "Cached (stat)";
|
|
C.setContents(nullptr);
|
|
EXPECT_EQ("bb", C.get(StaleOK, /*ExpectParse=*/false)) << "Cached (time)";
|
|
EXPECT_EQ("", C.get(MustBeFresh, /*ExpectParse=*/true)) << "Stat failed";
|
|
EXPECT_EQ("", C.get(MustBeFresh, /*ExpectParse=*/false)) << "Cached (404)";
|
|
C.setContents("bb"); // Match the previous stat values!
|
|
EXPECT_EQ("", C.get(StaleOK, /*ExpectParse=*/false)) << "Cached (time)";
|
|
EXPECT_EQ("bb", C.get(MustBeFresh, /*ExpectParse=*/true)) << "Size changed";
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace config
|
|
} // namespace clangd
|
|
} // namespace clang
|