Revert r252366: [Support] Use GetTempDir to get the temporary dir path on Windows.

[oota-llvm.git] / unittests / Support / Path.cpp

diff --git a/unittests/Support/Path.cpp b/unittests/Support/Path.cpp
index 416412f327c6b7bead0103c24f3e0a9e15a6bc70..a7a6a4add7c9d867d516695b357a9112658b012a 100644 (file)
--- a/unittests/Support/Path.cpp
+++ b/unittests/Support/Path.cpp
@@ -300,19 +300,55 @@ TEST(Support, AbsolutePathIteratorEnd) {
 }
 
 TEST(Support, HomeDirectory) {
-#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);
+#ifdef LLVM_ON_WIN32
+  if (wchar_t const *path = ::_wgetenv(L"USERPROFILE")) {
+    auto pathLen = ::wcslen(path);
+    ArrayRef<char> ref{reinterpret_cast<char const *>(path),
+                       pathLen * sizeof(wchar_t)};
+    convertUTF16ToUTF8String(ref, expected);
+  }
 #else
-  std::string expected{::getenv("HOME")};
+  if (char const *path = ::getenv("HOME"))
+    expected = path;
 #endif
-  SmallString<128> HomeDir;
-  auto status = path::home_directory(HomeDir);
-  EXPECT_TRUE(status ^ HomeDir.empty());
-  EXPECT_EQ(expected, HomeDir);
+  // Do not try to test it if we don't know what to expect.
+  // On Windows we use something better than env vars.
+  if (!expected.empty()) {
+    SmallString<128> HomeDir;
+    auto status = path::home_directory(HomeDir);
+    EXPECT_TRUE(status);
+    EXPECT_EQ(expected, HomeDir);
+  }
+}
+
+TEST(Support, UserCacheDirectory) {
+  SmallString<13> CacheDir;
+  SmallString<20> CacheDir2;
+  auto Status = path::user_cache_directory(CacheDir, "");
+  EXPECT_TRUE(Status ^ CacheDir.empty());
+
+  if (Status) {
+    EXPECT_TRUE(path::user_cache_directory(CacheDir2, "")); // should succeed
+    EXPECT_EQ(CacheDir, CacheDir2); // and return same paths
+
+    EXPECT_TRUE(path::user_cache_directory(CacheDir, "A", "B", "file.c"));
+    auto It = path::rbegin(CacheDir);
+    EXPECT_EQ("file.c", *It);
+    EXPECT_EQ("B", *++It);
+    EXPECT_EQ("A", *++It);
+    auto ParentDir = *++It;
+
+    // Test Unicode: "<user_cache_dir>/(pi)r^2/aleth.0"
+    EXPECT_TRUE(path::user_cache_directory(CacheDir2, "\xCF\x80r\xC2\xB2",
+                                           "\xE2\x84\xB5.0"));
+    auto It2 = path::rbegin(CacheDir2);
+    EXPECT_EQ("\xE2\x84\xB5.0", *It2);
+    EXPECT_EQ("\xCF\x80r\xC2\xB2", *++It2);
+    auto ParentDir2 = *++It2;
+
+    EXPECT_EQ(ParentDir, ParentDir2);
+  }
 }
 
 class FileSystemTest : public testing::Test {