From bdabc2f19ffb9e20600dad6e8a300842a7bda50e Mon Sep 17 00:00:00 2001
From: patrick <patrick@openbsd.org>
Date: Fri, 6 Apr 2018 14:26:03 +0000
Subject: Import LLVM 6.0.1 release including clang, lld and lldb.

"where is the kaboom?" deraadt@
---
 gnu/llvm/unittests/Support/ProcessTest.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'gnu/llvm/unittests/Support/ProcessTest.cpp')

diff --git a/gnu/llvm/unittests/Support/ProcessTest.cpp b/gnu/llvm/unittests/Support/ProcessTest.cpp
index 298a0a37323..37587bf4799 100644
--- a/gnu/llvm/unittests/Support/ProcessTest.cpp
+++ b/gnu/llvm/unittests/Support/ProcessTest.cpp
@@ -42,10 +42,18 @@ TEST(ProcessTest, None) {
   Optional<std::string> val(
       Process::GetEnv("__LLVM_TEST_ENVIRON_NO_SUCH_VAR__"));
   EXPECT_FALSE(val.hasValue());
-}
+} 
 #endif
 
 #ifdef LLVM_ON_WIN32
+
+TEST(ProcessTest, EmptyVal) {
+  SetEnvironmentVariableA("__LLVM_TEST_ENVIRON_VAR__", "");
+  Optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
+  EXPECT_TRUE(val.hasValue());
+  EXPECT_STREQ("", val->c_str());
+}
+
 TEST(ProcessTest, Wchar) {
   SetEnvironmentVariableW(L"__LLVM_TEST_ENVIRON_VAR__", L"abcdefghijklmnopqrs");
   Optional<std::string> val(Process::GetEnv("__LLVM_TEST_ENVIRON_VAR__"));
-- 
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