From: NAKAMURA Takumi <geek4civic@gmail.com>
Date: Fri, 16 Oct 2015 09:40:01 +0000 (+0000)
Subject: SupportTests::HomeDirectory: Don't try tests when $HOME is undefined.
X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=commitdiff_plain;h=054dd43f8ffe2b2385e3f1c004b1ce58dd2a257b

SupportTests::HomeDirectory: Don't try tests when $HOME is undefined.

Lit sanitizes env vars. $HOME is not exported in Lit tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250505 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/unittests/Support/Path.cpp b/unittests/Support/Path.cpp
index e8cd98b8cfa..044e80fe363 100644
--- a/unittests/Support/Path.cpp
+++ b/unittests/Support/Path.cpp
@@ -300,19 +300,22 @@ TEST(Support, AbsolutePathIteratorEnd) {
 }
 
 TEST(Support, HomeDirectory) {
+  std::string expected;
 #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")};
+  if (char const *home = ::getenv("HOME"))
+    expected = home;
 #endif
-  SmallString<128> HomeDir;
-  auto status = path::home_directory(HomeDir);
-  EXPECT_TRUE(status ^ HomeDir.empty());
-  EXPECT_EQ(expected, HomeDir);
+  if (expected.length() > 0) {
+    SmallString<128> HomeDir;
+    auto status = path::home_directory(HomeDir);
+    EXPECT_TRUE(status ^ HomeDir.empty());
+    EXPECT_EQ(expected, HomeDir);
+  }
 }
 
 class FileSystemTest : public testing::Test {