Use Windows Vista API to get the user's home directory

Summary: This patch replaces usage of deprecated SHGetFolderPathW with SHGetKnownFolderPath. The usage of SHGetKnownFolderPath is wrapped to allow queries for other "known" folders in the near future.

Reviewers: aaron.ballman, gbedwell

Subscribers: chapuni, llvm-commits

Differential Revision: http://reviews.llvm.org/D13753

llvm-svn: 250501

1 files changed, 13 insertions, 9 deletions

diff --git a/llvm/unittests/Support/Path.cpp b/llvm/unittests/Support/Path.cpp
index 5d883c4041c..416412f327c 100644
--- a/llvm/unittests/Support/Path.cpp
+++ b/llvm/unittests/Support/Path.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/Path.h"
+#include "llvm/Support/ConvertUTF.h"
 #include "llvm/Support/Errc.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/FileSystem.h"
@@ -299,16 +300,19 @@ TEST(Support, AbsolutePathIteratorEnd) {
 }
 
 TEST(Support, HomeDirectory) {
-#ifdef LLVM_ON_UNIX
-  // This test only makes sense on Unix if $HOME is set.
-  if (::getenv("HOME")) {
-#endif
-    SmallString<128> HomeDir;
-    EXPECT_TRUE(path::home_directory(HomeDir));
-    EXPECT_FALSE(HomeDir.empty());
-#ifdef LLVM_ON_UNIX
-  }
+#ifdef LLVM_ON_WIN32
+  wchar_t *path = ::_wgetenv(L"USERPROFILE");
+  auto pathLen = ::wcslen(path);
+  ArrayRef<char> ref{reinterpret_cast<char*>(path), pathLen * sizeof(wchar_t)};
+  std::string expected;
+  convertUTF16ToUTF8String(ref, expected);
+#else
+  std::string expected{::getenv("HOME")};
 #endif
+  SmallString<128> HomeDir;
+  auto status = path::home_directory(HomeDir);
+  EXPECT_TRUE(status ^ HomeDir.empty());
+  EXPECT_EQ(expected, HomeDir);
 }
 
 class FileSystemTest : public testing::Test {