lldb/unittests/Expression/ClangParserTest.cpp

   1 //===-- ClangParserTest.cpp -----------------------------------------------===//
   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/Basic/Version.h"
  10 #include "clang/Config/config.h"
  11 #include "clang/Driver/Driver.h"
  12
  13 #include "Plugins/ExpressionParser/Clang/ClangHost.h"
  14 #include "TestingSupport/SubsystemRAII.h"
  15 #include "TestingSupport/TestUtilities.h"
  16 #include "lldb/Host/Config.h"
  17 #include "lldb/Host/FileSystem.h"
  18 #include "lldb/Host/HostInfo.h"
  19 #include "lldb/Utility/FileSpec.h"
  20 #include "lldb/lldb-defines.h"
  21 #include "gtest/gtest.h"
  22
  23 using namespace lldb_private;
  24
  25 namespace {
  26 struct ClangHostTest : public testing::Test {
  27   SubsystemRAII<FileSystem, HostInfo> subsystems;
  28 };
  29 } // namespace
  30
  31 static std::string ComputeClangResourceDir(std::string lldb_shlib_path,
  32                                            bool verify = false) {
  33   FileSpec clang_dir;
  34   FileSpec lldb_shlib_spec(lldb_shlib_path);
  35   ComputeClangResourceDirectory(lldb_shlib_spec, clang_dir, verify);
  36   return clang_dir.GetPath();
  37 }
  38
  39 TEST_F(ClangHostTest, ComputeClangResourceDirectory) {
  40 #if !defined(_WIN32)
  41   std::string path_to_liblldb = "/foo/bar/lib/";
  42 #else
  43   std::string path_to_liblldb = "C:\\foo\\bar\\lib\\";
  44 #endif
  45   std::string path_to_clang_dir = clang::driver::Driver::GetResourcesPath(
  46       path_to_liblldb + "liblldb", CLANG_RESOURCE_DIR);
  47   EXPECT_EQ(ComputeClangResourceDir(path_to_liblldb), path_to_clang_dir);
  48
  49   // The path doesn't really exist, so setting verify to true should make
  50   // ComputeClangResourceDir not give you path_to_clang_dir.
  51   EXPECT_NE(ComputeClangResourceDir(path_to_liblldb, true), path_to_clang_dir);
  52 }
  53
  54 #if defined(__APPLE__)
  55 TEST_F(ClangHostTest, MacOSX) {
  56   // This returns whatever the POSIX fallback returns.
  57   std::string posix = "/usr/lib/liblldb.dylib";
  58   EXPECT_FALSE(ComputeClangResourceDir(posix).empty());
  59
  60   std::string build =
  61       "/lldb-macosx-x86_64/Library/Frameworks/LLDB.framework/Versions/A";
  62   std::string build_clang =
  63       "/lldb-macosx-x86_64/Library/Frameworks/LLDB.framework/Resources/Clang";
  64   EXPECT_EQ(ComputeClangResourceDir(build), build_clang);
  65
  66   std::string xcode = "/Applications/Xcode.app/Contents/SharedFrameworks/"
  67                       "LLDB.framework/Versions/A";
  68   std::string xcode_clang =
  69       "/Applications/Xcode.app/Contents/Developer/Toolchains/"
  70       "XcodeDefault.xctoolchain/usr/lib/swift/clang";
  71   EXPECT_EQ(ComputeClangResourceDir(xcode), xcode_clang);
  72
  73   std::string toolchain =
  74       "/Applications/Xcode.app/Contents/Developer/Toolchains/"
  75       "Swift-4.1-development-snapshot.xctoolchain/System/Library/"
  76       "PrivateFrameworks/LLDB.framework";
  77   std::string toolchain_clang =
  78       "/Applications/Xcode.app/Contents/Developer/Toolchains/"
  79       "Swift-4.1-development-snapshot.xctoolchain/usr/lib/swift/clang";
  80   EXPECT_EQ(ComputeClangResourceDir(toolchain), toolchain_clang);
  81
  82   std::string cltools = "/Library/Developer/CommandLineTools/Library/"
  83                         "PrivateFrameworks/LLDB.framework";
  84   std::string cltools_clang =
  85       "/Library/Developer/CommandLineTools/Library/PrivateFrameworks/"
  86       "LLDB.framework/Resources/Clang";
  87   EXPECT_EQ(ComputeClangResourceDir(cltools), cltools_clang);
  88
  89   // Test that a bogus path is detected.
  90   EXPECT_NE(ComputeClangResourceDir(GetInputFilePath(xcode), true),
  91             ComputeClangResourceDir(GetInputFilePath(xcode)));
  92 }
  93 #endif // __APPLE__