1 files changed, 90 insertions, 0 deletions
diff --git a/gnu/llvm/lldb/unittests/Expression/ClangParserTest.cpp b/gnu/llvm/lldb/unittests/Expression/ClangParserTest.cpp
new file mode 100644
index 00000000000..ade0f5387c0
--- /dev/null
+++ b/gnu/llvm/lldb/unittests/Expression/ClangParserTest.cpp
@@ -0,0 +1,90 @@
+//===-- ClangParserTest.cpp --------------------------------------*- C++-*-===//
+//
+// 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 "clang/Basic/Version.h"
+
+#include "Plugins/ExpressionParser/Clang/ClangHost.h"
+#include "TestingSupport/SubsystemRAII.h"
+#include "TestingSupport/TestUtilities.h"
+#include "lldb/Host/FileSystem.h"
+#include "lldb/Host/HostInfo.h"
+#include "lldb/Utility/FileSpec.h"
+#include "lldb/lldb-defines.h"
+#include "gtest/gtest.h"
+
+using namespace lldb_private;
+
+namespace {
+struct ClangHostTest : public testing::Test {
+  SubsystemRAII<FileSystem, HostInfo> subsystems;
+};
+} // namespace
+
+static std::string ComputeClangResourceDir(std::string lldb_shlib_path,
+                                           bool verify = false) {
+  FileSpec clang_dir;
+  FileSpec lldb_shlib_spec(lldb_shlib_path);
+  ComputeClangResourceDirectory(lldb_shlib_spec, clang_dir, verify);
+  return clang_dir.GetPath();
+}
+
+TEST_F(ClangHostTest, ComputeClangResourceDirectory) {
+#if !defined(_WIN32)
+  std::string path_to_liblldb = "/foo/bar/lib/";
+  std::string path_to_clang_dir = "/foo/bar/lib/clang/" CLANG_VERSION_STRING;
+#else
+  std::string path_to_liblldb = "C:\\foo\\bar\\lib";
+  std::string path_to_clang_dir = "C:\\foo\\bar\\lib\\clang\\" CLANG_VERSION_STRING;
+#endif
+  EXPECT_EQ(ComputeClangResourceDir(path_to_liblldb), path_to_clang_dir);
+
+  // The path doesn't really exist, so setting verify to true should make
+  // ComputeClangResourceDir not give you path_to_clang_dir.
+  EXPECT_NE(ComputeClangResourceDir(path_to_liblldb, true), path_to_clang_dir);
+}
+
+#if defined(__APPLE__)
+TEST_F(ClangHostTest, MacOSX) {
+  // This returns whatever the POSIX fallback returns.
+  std::string posix = "/usr/lib/liblldb.dylib";
+  EXPECT_FALSE(ComputeClangResourceDir(posix).empty());
+
+  std::string build =
+      "/lldb-macosx-x86_64/Library/Frameworks/LLDB.framework/Versions/A";
+  std::string build_clang =
+      "/lldb-macosx-x86_64/Library/Frameworks/LLDB.framework/Resources/Clang";
+  EXPECT_EQ(ComputeClangResourceDir(build), build_clang);
+
+  std::string xcode = "/Applications/Xcode.app/Contents/SharedFrameworks/"
+                      "LLDB.framework/Versions/A";
+  std::string xcode_clang =
+      "/Applications/Xcode.app/Contents/Developer/Toolchains/"
+      "XcodeDefault.xctoolchain/usr/lib/swift/clang";
+  EXPECT_EQ(ComputeClangResourceDir(xcode), xcode_clang);
+
+  std::string toolchain =
+      "/Applications/Xcode.app/Contents/Developer/Toolchains/"
+      "Swift-4.1-development-snapshot.xctoolchain/System/Library/"
+      "PrivateFrameworks/LLDB.framework";
+  std::string toolchain_clang =
+      "/Applications/Xcode.app/Contents/Developer/Toolchains/"
+      "Swift-4.1-development-snapshot.xctoolchain/usr/lib/swift/clang";
+  EXPECT_EQ(ComputeClangResourceDir(toolchain), toolchain_clang);
+
+  std::string cltools = "/Library/Developer/CommandLineTools/Library/"
+                        "PrivateFrameworks/LLDB.framework";
+  std::string cltools_clang =
+      "/Library/Developer/CommandLineTools/Library/PrivateFrameworks/"
+      "LLDB.framework/Resources/Clang";
+  EXPECT_EQ(ComputeClangResourceDir(cltools), cltools_clang);
+
+  // Test that a bogus path is detected.
+  EXPECT_NE(ComputeClangResourceDir(GetInputFilePath(xcode), true),
+            ComputeClangResourceDir(GetInputFilePath(xcode)));
+}
+#endif // __APPLE__