1 files changed, 64 insertions, 0 deletions
diff --git a/unittests/Support/raw_pwrite_stream_test.cpp b/unittests/Support/raw_pwrite_stream_test.cpp
new file mode 100644
index 0000000000000..a62f6bacb0703
--- /dev/null
+++ b/unittests/Support/raw_pwrite_stream_test.cpp
@@ -0,0 +1,64 @@
+//===- raw_pwrite_stream_test.cpp - raw_pwrite_stream tests ---------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "gtest/gtest.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+
+namespace {
+
+TEST(raw_pwrite_ostreamTest, TestSVector) {
+  SmallVector<char, 0> Buffer;
+  raw_svector_ostream OS(Buffer);
+  OS << "abcd";
+  StringRef Test = "test";
+  OS.pwrite(Test.data(), Test.size(), 0);
+  EXPECT_EQ(Test, OS.str());
+
+#ifdef GTEST_HAS_DEATH_TEST
+#ifndef NDEBUG
+  EXPECT_DEATH(OS.pwrite("12345", 5, 0),
+               "We don't support extending the stream");
+#endif
+#endif
+}
+
+TEST(raw_pwrite_ostreamTest, TestFD) {
+  SmallString<64> Path;
+  int FD;
+  sys::fs::createTemporaryFile("foo", "bar", FD, Path);
+  raw_fd_ostream OS(FD, true);
+  OS << "abcd";
+  StringRef Test = "test";
+  OS.pwrite(Test.data(), Test.size(), 0);
+  OS.pwrite(Test.data(), Test.size(), 0);
+
+#ifdef GTEST_HAS_DEATH_TEST
+#ifndef NDEBUG
+  EXPECT_DEATH(OS.pwrite("12345", 5, 0),
+               "We don't support extending the stream");
+#endif
+#endif
+}
+
+#ifdef LLVM_ON_UNIX
+TEST(raw_pwrite_ostreamTest, TestDevNull) {
+  int FD;
+  sys::fs::openFileForWrite("/dev/null", FD, sys::fs::F_None);
+  raw_fd_ostream OS(FD, true);
+  OS << "abcd";
+  StringRef Test = "test";
+  OS.pwrite(Test.data(), Test.size(), 0);
+  OS.pwrite(Test.data(), Test.size(), 0);
+}
+#endif
+}